junte/Model
1
0
Fork 0
mirror of https://github.com/Hestia-Homes/Model.git synced 2026-07-12 13:29:04 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

Merge pull request #1449 from Hestia-Homes/feat/sap-corpus-campaign

Browse source 
fix(rdsap): RdSAP 10 Table 13 200/280mm solid-brick wall boundary
This commit is contained in:
Jun-te Kim 2026-07-06 12:25:17 +01:00 • committed by GitHub
commit c238a0e6a0
No known key found for this signature in database
GPG key ID: B5690EEEBB952194
12 changed files with 1024 additions and 224 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

BIN
backend/epc_api/json_samples/real_life_examples/RdSAP-Schema-21.0.1/uprn_100031768368/elmhurst_summary.pdf Normal file
View file

Binary file not shown.

BIN
backend/epc_api/json_samples/real_life_examples/RdSAP-Schema-21.0.1/uprn_100031768368/elmhurst_worksheet.pdf Normal file
View file

Binary file not shown.

452
backend/epc_api/json_samples/real_life_examples/RdSAP-Schema-21.0.1/uprn_100031768368/epc.json Normal file
View file

@ -0,0 +1,452 @@
{
"uprn": 100031768368,
"roofs": [
{
"description": "Pitched, 100 mm loft insulation",
"energy_efficiency_rating": 3,
"environmental_efficiency_rating": 3
}
],
"walls": [
{
"description": "Solid brick, as built, no insulation (assumed)",
"energy_efficiency_rating": 2,
"environmental_efficiency_rating": 2
}
],
"floors": [
{
"description": "Solid, no insulation (assumed)",
"energy_efficiency_rating": 0,
"environmental_efficiency_rating": 0
}
],
"status": "entered",
"tenure": 1,
"window": {
"description": "Fully double glazed",
"energy_efficiency_rating": 2,
"environmental_efficiency_rating": 2
},
"addendum": {
"addendum_numbers": [
15
]
},
"lighting": {
"description": "Below average lighting efficiency",
"energy_efficiency_rating": 3,
"environmental_efficiency_rating": 3
},
"postcode": "ST16 3TS",
"hot_water": {
"description": "From main system",
"energy_efficiency_rating": 4,
"environmental_efficiency_rating": 4
},
"post_town": "STAFFORD",
"psv_count": 0,
"built_form": 3,
"created_at": "2026-05-14 07:52:27",
"door_count": 1,
"region_code": 6,
"report_type": 2,
"sap_heating": {
"number_baths": 1,
"cylinder_size": 1,
"shower_outlets": [
{
"shower_wwhrs": 1,
"shower_outlet_type": 2
}
],
"water_heating_code": 901,
"water_heating_fuel": 26,
"secondary_fuel_type": 26,
"main_heating_details": [
{
"has_fghrs": "N",
"main_fuel_type": 26,
"boiler_flue_type": 2,
"fan_flue_present": "Y",
"heat_emitter_type": 1,
"emitter_temperature": 0,
"main_heating_number": 1,
"main_heating_control": 2106,
"main_heating_category": 2,
"main_heating_fraction": 1,
"central_heating_pump_age": 0,
"main_heating_data_source": 1,
"main_heating_index_number": 18250
}
],
"immersion_heating_type": "NA",
"secondary_heating_type": 605,
"has_fixed_air_conditioning": "false"
},
"sap_version": 10.2,
"sap_windows": [
{
"pvc_frame": "true",
"glazing_gap": 6,
"orientation": 3,
"window_type": 1,
"glazing_type": 3,
"window_width": 1.1,
"window_height": 1.02,
"draught_proofed": "true",
"window_location": 0,
"window_wall_type": 1,
"permanent_shutters_present": "N",
"permanent_shutters_insulated": "N"
},
{
"pvc_frame": "true",
"glazing_gap": 6,
"orientation": 3,
"window_type": 1,
"glazing_type": 3,
"window_width": 1.64,
"window_height": 1.01,
"draught_proofed": "true",
"window_location": 0,
"window_wall_type": 1,
"permanent_shutters_present": "N",
"permanent_shutters_insulated": "N"
},
{
"pvc_frame": "true",
"glazing_gap": 6,
"orientation": 7,
"window_type": 1,
"glazing_type": 3,
"window_width": 0.96,
"window_height": 0.96,
"draught_proofed": "true",
"window_location": 0,
"window_wall_type": 1,
"permanent_shutters_present": "N",
"permanent_shutters_insulated": "N"
},
{
"pvc_frame": "true",
"glazing_gap": 6,
"orientation": 7,
"window_type": 1,
"glazing_type": 3,
"window_width": 0.99,
"window_height": 0.96,
"draught_proofed": "true",
"window_location": 0,
"window_wall_type": 1,
"permanent_shutters_present": "N",
"permanent_shutters_insulated": "N"
},
{
"pvc_frame": "true",
"glazing_gap": 6,
"orientation": 7,
"window_type": 1,
"glazing_type": 3,
"window_width": 1.48,
"window_height": 0.97,
"draught_proofed": "true",
"window_location": 0,
"window_wall_type": 1,
"permanent_shutters_present": "N",
"permanent_shutters_insulated": "N"
},
{
"pvc_frame": "true",
"glazing_gap": 6,
"orientation": 3,
"window_type": 1,
"glazing_type": 3,
"window_width": 0.55,
"window_height": 1.19,
"draught_proofed": "true",
"window_location": 0,
"window_wall_type": 1,
"permanent_shutters_present": "N",
"permanent_shutters_insulated": "N"
},
{
"pvc_frame": "true",
"glazing_gap": 6,
"orientation": 3,
"window_type": 1,
"glazing_type": 3,
"window_width": 0.55,
"window_height": 1.19,
"draught_proofed": "true",
"window_location": 0,
"window_wall_type": 1,
"permanent_shutters_present": "N",
"permanent_shutters_insulated": "N"
},
{
"pvc_frame": "true",
"glazing_gap": 6,
"orientation": 3,
"window_type": 1,
"glazing_type": 3,
"window_width": 1.1,
"window_height": 1.3,
"draught_proofed": "true",
"window_location": 0,
"window_wall_type": 1,
"permanent_shutters_present": "N",
"permanent_shutters_insulated": "N"
},
{
"pvc_frame": "true",
"glazing_gap": 6,
"orientation": 7,
"window_type": 1,
"glazing_type": 2,
"window_width": 1.36,
"window_height": 2.08,
"draught_proofed": "true",
"window_location": 0,
"window_wall_type": 1,
"permanent_shutters_present": "N",
"permanent_shutters_insulated": "N"
},
{
"pvc_frame": "true",
"glazing_gap": 6,
"orientation": 7,
"window_type": 1,
"glazing_type": 3,
"window_width": 0.9,
"window_height": 2.03,
"draught_proofed": "true",
"window_location": 0,
"window_wall_type": 1,
"permanent_shutters_present": "N",
"permanent_shutters_insulated": "N"
}
],
"schema_type": "RdSAP-Schema-21.0.1",
"uprn_source": "Energy Assessor",
"country_code": "ENG",
"main_heating": [
{
"description": "Boiler and radiators, mains gas",
"energy_efficiency_rating": 4,
"environmental_efficiency_rating": 4
}
],
"air_tightness": {
"description": "(not tested)",
"energy_efficiency_rating": 0,
"environmental_efficiency_rating": 0
},
"dwelling_type": "End-terrace house",
"language_code": 1,
"pressure_test": 4,
"property_type": 0,
"address_line_1": "21 Greenway",
"assessment_type": "RdSAP",
"completion_date": "2026-05-14",
"inspection_date": "2026-05-13",
"extensions_count": 0,
"measurement_type": 1,
"open_flues_count": 0,
"total_floor_area": 76,
"transaction_type": 1,
"conservatory_type": 2,
"has_draught_lobby": "false",
"heated_room_count": 4,
"other_flues_count": 1,
"registration_date": "2026-05-14",
"sap_energy_source": {
"mains_gas": "Y",
"meter_type": 2,
"pv_diverter": "false",
"pv_connection": 0,
"pv_battery_count": 0,
"photovoltaic_supply": {
"none_or_no_details": {
"percent_roof_area": 0
}
},
"wind_turbines_count": 0,
"gas_smart_meter_present": "true",
"is_dwelling_export_capable": "false",
"wind_turbines_terrain_type": 2,
"electricity_smart_meter_present": "true",
"is_hydro_output_connected_to_dwelling_meter": "false"
},
"secondary_heating": {
"description": "Room heaters, mains gas",
"energy_efficiency_rating": 0,
"environmental_efficiency_rating": 0
},
"closed_flues_count": 0,
"extract_fans_count": 1,
"sap_building_parts": [
{
"identifier": "Main Dwelling",
"wall_dry_lined": "N",
"wall_thickness": 280,
"floor_heat_loss": 7,
"roof_construction": 4,
"wall_construction": 3,
"building_part_number": 1,
"sap_floor_dimensions": [
{
"floor": 0,
"room_height": {
"value": 2.45,
"quantity": "metres"
},
"floor_insulation": 1,
"total_floor_area": {
"value": 37.75,
"quantity": "square metres"
},
"party_wall_length": {
"value": 5,
"quantity": "metres"
},
"floor_construction": 1,
"heat_loss_perimeter": {
"value": 20.1,
"quantity": "metres"
}
},
{
"floor": 1,
"room_height": {
"value": 2.45,
"quantity": "metres"
},
"total_floor_area": {
"value": 37.75,
"quantity": "square metres"
},
"party_wall_length": {
"value": 5,
"quantity": "metres"
},
"heat_loss_perimeter": {
"value": 20.1,
"quantity": "metres"
}
}
],
"wall_insulation_type": 4,
"construction_age_band": "C",
"party_wall_construction": 1,
"wall_thickness_measured": "Y",
"roof_insulation_location": 2,
"roof_insulation_thickness": "100mm",
"wall_insulation_thickness": "NI"
}
],
"boilers_flues_count": 0,
"open_chimneys_count": 0,
"solar_water_heating": "N",
"habitable_room_count": 4,
"heating_cost_current": {
"value": 1188,
"currency": "GBP"
},
"insulated_door_count": 0,
"co2_emissions_current": 3.4,
"energy_rating_average": 60,
"energy_rating_current": 61,
"lighting_cost_current": {
"value": 55,
"currency": "GBP"
},
"main_heating_controls": [
{
"description": "Programmer, room thermostat and TRVs",
"energy_efficiency_rating": 4,
"environmental_efficiency_rating": 4
}
],
"blocked_chimneys_count": 0,
"has_hot_water_cylinder": "false",
"heating_cost_potential": {
"value": 739,
"currency": "GBP"
},
"hot_water_cost_current": {
"value": 267,
"currency": "GBP"
},
"mechanical_ventilation": 0,
"percent_draughtproofed": 100,
"suggested_improvements": [
{
"sequence": 1,
"typical_saving": 371,
"indicative_cost": "\u00a37,500 - \u00a311,000",
"improvement_type": "Q",
"improvement_details": {
"improvement_number": 7
},
"improvement_category": 5,
"energy_performance_rating": 70,
"environmental_impact_rating": 73
},
{
"sequence": 2,
"typical_saving": 77,
"indicative_cost": "\u00a35,000 - \u00a310,000",
"improvement_type": "W2",
"improvement_details": {
"improvement_number": 58
},
"improvement_category": 5,
"energy_performance_rating": 71,
"environmental_impact_rating": 75
},
{
"sequence": 3,
"typical_saving": 222,
"indicative_cost": "\u00a38,000 - \u00a310,000",
"improvement_type": "U",
"improvement_details": {
"improvement_number": 34
},
"improvement_category": 5,
"energy_performance_rating": 76,
"environmental_impact_rating": 76
}
],
"co2_emissions_potential": 2,
"energy_rating_potential": 76,
"lighting_cost_potential": {
"value": 55,
"currency": "GBP"
},
"schema_version_original": "LIG-21.0.1",
"flueless_gas_fires_count": 0,
"hot_water_cost_potential": {
"value": 267,
"currency": "GBP"
},
"renewable_heat_incentive": {
"water_heating": 1847.12,
"space_heating_existing_dwelling": 11154.61
},
"draughtproofed_door_count": 1,
"energy_consumption_current": 252,
"has_fixed_air_conditioning": "false",
"multiple_glazed_proportion": 100,
"calculation_software_version": "4.3.74",
"energy_consumption_potential": 145,
"environmental_impact_current": 61,
"cfl_fixed_lighting_bulbs_count": 2,
"current_energy_efficiency_band": "D",
"environmental_impact_potential": 76,
"led_fixed_lighting_bulbs_count": 10,
"has_heated_separate_conservatory": "false",
"potential_energy_efficiency_band": "C",
"co2_emissions_current_per_floor_area": 45,
"incandescent_fixed_lighting_bulbs_count": 1
}

BIN
backend/epc_api/json_samples/real_life_examples/RdSAP-Schema-21.0.1/uprn_217091901/elmhurst_summary.pdf
View file

Binary file not shown.

BIN
backend/epc_api/json_samples/real_life_examples/RdSAP-Schema-21.0.1/uprn_217091901/elmhurst_worksheet.pdf
View file

Binary file not shown.

13
domain/sap10_ml/rdsap_uvalues.py
View file

@ -260,10 +260,21 @@ def _u_brick_thin_wall_age_a_to_e(wall_thickness_mm: int) -> float:
200 to 280 mm 1.7
280 to 420 mm 1.4
More than 420 mm 1.1
The 200/280 boundary is shared verbatim by adjacent rows in the spec
PDF (Table 13, p.41), which doesn't say which row owns the shared
edge. Elmhurst-validated on cert 100031768368 (280mm exactly, no
insulation, band C, Dry-lining No): its worksheet (29a) computes the
wall at U=1.40 — the upper row. A second cert (217091901, band A,
also nominally 280mm) initially looked like a counterexample at
U=1.70, but its Elmhurst build never actually set a wall thickness
(silently inherited a stale 260mm from an earlier build on the
shared assessment) — not a real second data point. Only the 280
edge is evidenced here; 200 and 420 are left as originally coded.
"""
if wall_thickness_mm <= 200:
return 2.5
if wall_thickness_mm <= 280:
if wall_thickness_mm < 280:
return 1.7
if wall_thickness_mm <= 420:
return 1.4

24
domain/sap10_ml/tests/test_rdsap_uvalues.py
View file

@ -32,6 +32,7 @@ from domain.sap10_ml.rdsap_uvalues import (
WALL_SYSTEM_BUILT,
WALL_TIMBER_FRAME,
_insulation_bucket,
_u_brick_thin_wall_age_a_to_e, # pyright: ignore[reportPrivateUsage]
thermal_bridging_y,
u_door,
u_exposed_floor,
@ -140,6 +141,29 @@ def test_u_wall_solid_brick_present_insulation_thin_known_thickness_not_uninsula
assert result == pytest.approx(0.55, abs=0.001)
def test_u_brick_thin_wall_age_a_to_e_280mm_boundary_takes_upper_bucket() -> None:
# Arrange — RdSAP 10 §5.7 Table 13 (PDF p.41) gives four thickness bands
# for an uninsulated solid-brick wall: "up to 200mm" -> 2.5, "200 to
# 280mm" -> 1.7, "280 to 420mm" -> 1.4, "more than 420mm" -> 1.1. The
# 200/280 bands share 280 as an edge verbatim in the spec table, so the
# table text alone doesn't say which band owns it. Elmhurst-validated
# on cert 100031768368 (solid brick, band C, wall_thickness_mm=280
# exactly, no insulation, Dry-lining No): its worksheet (29a) computes
# the wall at U=1.40 — the UPPER band — not 1.70. A second cert
# (217091901, band A, cert wall_thickness=280 too) initially looked
# like Elmhurst evidence for the opposite (U=1.70), but its build
# script never actually set a wall thickness field — the assessment
# had silently carried over a stale 260mm from an earlier build, so
# it isn't a real counter-example (fixed in build_217091901.py).
#
# Only the 280 edge is evidenced here — the 200 and 420 edges are left
# as originally coded pending their own Elmhurst confirmation.
# Act / Assert
assert _u_brick_thin_wall_age_a_to_e(279) == pytest.approx(1.7)
assert _u_brick_thin_wall_age_a_to_e(280) == pytest.approx(1.4)
def test_insulation_bucket_present_thin_thickness_rounds_up_to_50_not_zero() -> None:
# Direct guard on the bucket: present insulation never maps to bucket 0.
assert _insulation_bucket(10, True) == 50

402
scripts/corpus_1000/worklist.md
View file

@ -1,10 +1,10 @@
# RdSAP-21.0.1 corpus campaign ledger
**Gauge:** 1000 computed / 0 skipped · SAP within-0.5 = **77.8%** · MAE = **0.636** (floors in test_sap_accuracy_corpus.py)
**Gauge:** 1000 computed / 0 skipped · SAP within-0.5 = **78.6%** · MAE = **0.627** (floors in test_sap_accuracy_corpus.py)
Statuses: `[ ]` todo · `[x]` resolved ≤0.5 · 🔧 fix landed · ⚠ xfail engine bug · ⛔ unbuildable. Line: `uprn · lodged L / eng E / Δ · signature`. Rebuild/re-rank: `PYTHONPATH=. python scripts/corpus_1000/build_worklist.py` (preserves statuses & `<-` notes).
## Clusters (certs with |Δ| ≥ 0.5, ranked by summed |Δ|) — 222 certs in 216 clusters
## Clusters (certs with |Δ| ≥ 0.5, ranked by summed |Δ|) — 214 certs in 208 clusters
### C001 · Σ|Δ| 23.9 · 1 certs · `hpcdb100053/elec | solid brick | (another dwelling | sec:room heaters`
- ⚠ `4510053280` · L 51 / E 74.94 / Δ +23.94 <- lodged software billed out-of-range-PSR (2.031 > 2.0) PCDB 100053 as 100% direct electric; engine follows SAP10.2 N2 extension (305%), Elmhurst-validated on case 56. Pinned engine 75 in test_real_cert_sap_accuracy.
@ -114,553 +114,529 @@ Statuses: `[ ]` todo · `[x]` resolved ≤0.5 · 🔧 fix landed · ⚠ xfail en
### C035 · Σ|Δ| 3.1 · 1 certs · `h633/heatnet | timber frame | roof room(s) | RR,ext1,sec:room heaters,whw909`
- [ ] `22077224` · L 37 / E 33.90 / Δ -3.10
### C036 · Σ|Δ| 3.0 · 1 certs · `hpcdb18498/gas | solid brick | pitched 250 | RR,ext2`
- [ ] `10011740578` · L 70 / E 67.00 / Δ -3.00
### C037 · Σ|Δ| 2.9 · 1 certs · `h402/elec | cavity wall | pitched 250 | sec:portable electric,whw903`
### C036 · Σ|Δ| 2.9 · 1 certs · `h402/elec | cavity wall | pitched 250 | sec:portable electric,whw903`
- [ ] `100110680822` · L 79 / E 76.07 / Δ -2.93
### C038 · Σ|Δ| 2.9 · 1 certs · `h301/coal-anth | solid brick | pitched 250`
### C037 · Σ|Δ| 2.9 · 1 certs · `h301/coal-anth | solid brick | pitched 250`
- [ ] `452032915` · L 75 / E 72.09 / Δ -2.91
### C039 · Σ|Δ| 2.9 · 1 certs · `h301/coal-anth | cavity wall | (another dwelling | whw909`
### C038 · Σ|Δ| 2.9 · 1 certs · `h301/coal-anth | cavity wall | (another dwelling | whw909`
- [ ] `100071306639` · L 73 / E 70.14 / Δ -2.86
### C040 · Σ|Δ| 2.9 · 1 certs · `hpcdb18435/gas+2mains | cavity wall | pitched 100 | ext3,sec:room heaters,whw903`
### C039 · Σ|Δ| 2.9 · 1 certs · `hpcdb18435/gas+2mains | cavity wall | pitched 100 | ext3,sec:room heaters,whw903`
- [ ] `100061346049` · L 55 / E 52.15 / Δ -2.85
### C041 · Σ|Δ| 2.7 · 1 certs · `hpcdb8443/fuel28 | cavity wall | pitched 100 | RR,ext2,sec:room heaters`
### C040 · Σ|Δ| 2.7 · 1 certs · `hpcdb8443/fuel28 | cavity wall | pitched 100 | RR,ext2,sec:room heaters`
- [ ] `10013008238` · L 41 / E 38.26 / Δ -2.74
### C042 · Σ|Δ| 2.7 · 3 certs · `h691/elec | cavity wall | (another dwelling | whw903`
### C041 · Σ|Δ| 2.7 · 3 certs · `h691/elec | cavity wall | (another dwelling | whw903`
- [ ] `10033187652` · L 70 / E 71.21 / Δ +1.21 <- non-electric cost (secondary fuel/cylinder/tariff); spec-faithful vs lodged
- [ ] `200002730` · L 65 / E 64.13 / Δ -0.87
- [ ] `10023328117` · L 78 / E 78.64 / Δ +0.64
### C043 · Σ|Δ| 2.7 · 1 certs · `h633/heatnet | cavity wall | pitched 200 | RR,sec:room heaters,whw903`
### C042 · Σ|Δ| 2.7 · 1 certs · `h633/heatnet | cavity wall | pitched 200 | RR,sec:room heaters,whw903`
- [ ] `10004873253` · L 65 / E 62.29 / Δ -2.71
### C044 · Σ|Δ| 2.7 · 1 certs · `h691/elec | cavity wall | (another dwelling | mv1,whw903`
### C043 · Σ|Δ| 2.7 · 1 certs · `h691/elec | cavity wall | (another dwelling | mv1,whw903`
- [ ] `10090793715` · L 73 / E 75.71 / Δ +2.71
### C045 · Σ|Δ| 2.7 · 1 certs · `hpcdb17964/gas+2mains | cavity wall | pitched 100 | ext1,sec:room heaters`
### C044 · Σ|Δ| 2.7 · 1 certs · `hpcdb17964/gas+2mains | cavity wall | pitched 100 | ext1,sec:room heaters`
- [ ] `100120745600` · L 65 / E 67.69 / Δ +2.69
### C046 · Σ|Δ| 2.7 · 1 certs · `hpcdb17757/gas | granite or | pitched no | RR,ext1`
### C045 · Σ|Δ| 2.7 · 1 certs · `hpcdb17757/gas | granite or | pitched no | RR,ext1`
- [ ] `100051178830` · L 63 / E 65.66 / Δ +2.66
### C047 · Σ|Δ| 2.6 · 1 certs · `hpcdb10321/gas | sandstone as | pitched 100 | ext2`
### C046 · Σ|Δ| 2.6 · 1 certs · `hpcdb10321/gas | sandstone as | pitched 100 | ext2`
- [ ] `100120018282` · L 64 / E 61.36 / Δ -2.64
### C048 · Σ|Δ| 2.6 · 1 certs · `hpcdb17968/gas | cavity wall | pitched 300 | ext2,sec:room heaters`
### C047 · Σ|Δ| 2.6 · 1 certs · `hpcdb17968/gas | cavity wall | pitched 300 | ext2,sec:room heaters`
- [ ] `83035979` · L 65 / E 67.60 / Δ +2.60
### C049 · Σ|Δ| 2.5 · 1 certs · `h524/elec | solid brick | (another dwelling | consv2,sec:room heaters,whw909`
### C048 · Σ|Δ| 2.5 · 1 certs · `h524/elec | solid brick | (another dwelling | consv2,sec:room heaters,whw909`
- [ ] `10014073761` · L 75 / E 72.52 / Δ -2.48
### C050 · Σ|Δ| 2.5 · 1 certs · `hpcdb10328/gas | solid brick | pitched insulated | RR`
### C049 · Σ|Δ| 2.5 · 1 certs · `hpcdb10328/gas | solid brick | pitched insulated | RR`
- [ ] `100050964834` · L 60 / E 62.47 / Δ +2.47
### C051 · Σ|Δ| 2.4 · 1 certs · `h694/elec | cavity wall | (another dwelling | whw941`
### C050 · Σ|Δ| 2.4 · 1 certs · `h694/elec | cavity wall | (another dwelling | whw941`
- [ ] `100120752995` · L 71 / E 73.42 / Δ +2.42
### C052 · Σ|Δ| 2.4 · 1 certs · `h691/elec | solid brick | roof room(s) | RR,ext2,sec:room heaters,whw903`
### C051 · Σ|Δ| 2.4 · 1 certs · `h691/elec | solid brick | roof room(s) | RR,ext2,sec:room heaters,whw903`
- [ ] `100062174575` · L 46 / E 48.40 / Δ +2.40
### C053 · Σ|Δ| 2.3 · 1 certs · `hpcdb15753/gas | solid brick | pitched 150 | RR`
### C052 · Σ|Δ| 2.3 · 1 certs · `hpcdb15753/gas | solid brick | pitched 150 | RR`
- [ ] `100000034023` · L 73 / E 70.71 / Δ -2.29
### C054 · Σ|Δ| 2.2 · 1 certs · `h506/gas | cavity wall | flat limited | sec:room heaters`
### C053 · Σ|Δ| 2.2 · 1 certs · `h506/gas | cavity wall | flat limited | sec:room heaters`
- [ ] `100020377671` · L 62 / E 64.23 / Δ +2.23
### C055 · Σ|Δ| 2.2 · 1 certs · `h104/gas | solid brick | pitched insulated | RR,ext1`
### C054 · Σ|Δ| 2.2 · 1 certs · `h104/gas | solid brick | pitched insulated | RR,ext1`
- [ ] `22027335` · L 76 / E 73.77 / Δ -2.23
### C056 · Σ|Δ| 2.1 · 1 certs · `hpcdb18833/gas | solid brick | pitched insulated | RR,ext1,sec:room heaters`
### C055 · Σ|Δ| 2.1 · 1 certs · `hpcdb18833/gas | solid brick | pitched insulated | RR,ext1,sec:room heaters`
- [ ] `48056153` · L 65 / E 62.89 / Δ -2.11
### C057 · Σ|Δ| 2.0 · 1 certs · `hpcdb19008/gas | solid brick | pitched insulated | sec:room heaters`
### C056 · Σ|Δ| 2.0 · 1 certs · `hpcdb19008/gas | solid brick | pitched insulated | sec:room heaters`
- [ ] `100021924710` · L 63 / E 65.00 / Δ +2.00 <- non-electric fabric/demand: per-cert lodged-geometry noise (field_bias scan clean, no coherent subgroup)
### C058 · Σ|Δ| 1.9 · 1 certs · `hpcdb18774/gas | solid brick | pitched 100 | RR,ext1`
### C057 · Σ|Δ| 1.9 · 1 certs · `hpcdb18774/gas | solid brick | pitched 100 | RR,ext1`
- [ ] `100031270375` · L 69 / E 70.93 / Δ +1.93 <- room-in-roof surface geometry (spec-mandated, worksheet-validated; see PRs #1440/#1441)
### C059 · Σ|Δ| 1.9 · 1 certs · `hpcdb106417/elec | cavity wall | pitched 250 | RR,ext2,sec:room heaters`
### C058 · Σ|Δ| 1.9 · 1 certs · `hpcdb106417/elec | cavity wall | pitched 250 | RR,ext2,sec:room heaters`
- [ ] `10001118522` · L 80 / E 78.07 / Δ -1.93 <- room-in-roof surface geometry (spec-mandated, worksheet-validated; see PRs #1440/#1441)
### C060 · Σ|Δ| 1.9 · 1 certs · `h192/elec | cavity wall | (another dwelling`
### C059 · Σ|Δ| 1.9 · 1 certs · `h192/elec | cavity wall | (another dwelling`
- [ ] `10010234711` · L 81 / E 79.08 / Δ -1.92 <- electric other (per-cert cost noise)
### C061 · Σ|Δ| 1.9 · 1 certs · `hpcdb18250/gas | solid brick | pitched 100 | consv2,sec:room heaters`
- [ ] `100031768368` · L 61 / E 59.12 / Δ -1.88 <- non-electric fabric/demand: per-cert lodged-geometry noise (field_bias scan clean, no coherent subgroup)
### C062 · Σ|Δ| 1.8 · 1 certs · `h301/elec10hr | cavity wall | (another dwelling`
### C060 · Σ|Δ| 1.8 · 1 certs · `h301/elec10hr | cavity wall | (another dwelling`
- [ ] `4510729926` · L 73 / E 71.15 / Δ -1.85 <- electric + fabric/demand mismatch (per-cert; not a coherent cluster)
### C063 · Σ|Δ| 1.8 · 1 certs · `hpcdb17138/fuel28 | granite or | pitched 200 | ext1,sec:room heaters`
### C061 · Σ|Δ| 1.8 · 1 certs · `hpcdb17138/fuel28 | granite or | pitched 200 | ext1,sec:room heaters`
- [ ] `100091329112` · L 49 / E 50.82 / Δ +1.82 <- non-electric fabric/demand: per-cert lodged-geometry noise (field_bias scan clean, no coherent subgroup)
### C064 · Σ|Δ| 1.8 · 1 certs · `h691/elec | timber frame | pitched insulated | RR,ext1,sec:portable electric,whw908`
### C062 · Σ|Δ| 1.8 · 1 certs · `h691/elec | timber frame | pitched insulated | RR,ext1,sec:portable electric,whw908`
- [ ] `10011797347` · L 47 / E 48.77 / Δ +1.77 <- room-in-roof surface geometry (spec-mandated, worksheet-validated; see PRs #1440/#1441)
### C065 · Σ|Δ| 1.8 · 1 certs · `hpcdb17570/gas+2mains | solid brick | (another dwelling | RR,ext3,sec:room heaters`
- [ ] `100022668387` · L 68 / E 66.25 / Δ -1.75 <- room-in-roof surface geometry (spec-mandated, worksheet-validated; see PRs #1440/#1441)
### C066 · Σ|Δ| 1.7 · 1 certs · `hpcdb10354/gas+2mains | sandstone as | pitched 300 | ext1`
### C063 · Σ|Δ| 1.7 · 1 certs · `hpcdb10354/gas+2mains | sandstone as | pitched 300 | ext1`
- [ ] `100100892216` · L 69 / E 67.28 / Δ -1.72 <- non-electric fabric/demand: per-cert lodged-geometry noise (field_bias scan clean, no coherent subgroup)
### C067 · Σ|Δ| 1.7 · 1 certs · `hpcdb8119/gas | cavity wall | pitched insulated | RR,ext1`
### C064 · Σ|Δ| 1.7 · 1 certs · `hpcdb8119/gas | cavity wall | pitched insulated | RR,ext1`
- [ ] `100060878876` · L 49 / E 50.71 / Δ +1.71 <- room-in-roof surface geometry (spec-mandated, worksheet-validated; see PRs #1440/#1441)
### C068 · Σ|Δ| 1.7 · 1 certs · `h402/elec | solid brick | (another dwelling | sec:portable electric,whw903`
### C065 · Σ|Δ| 1.7 · 1 certs · `h402/elec | solid brick | (another dwelling | sec:portable electric,whw903`
- [ ] `12126160` · L 69 / E 70.71 / Δ +1.71 <- electric + fabric/demand mismatch (per-cert; not a coherent cluster)
### C069 · Σ|Δ| 1.7 · 1 certs · `h401/elec | solid brick | (another dwelling | sec:portable electric,whw950`
### C066 · Σ|Δ| 1.7 · 1 certs · `h401/elec | solid brick | (another dwelling | sec:portable electric,whw950`
- [ ] `22032926` · L 61 / E 62.71 / Δ +1.71 <- electric + fabric/demand mismatch (per-cert; not a coherent cluster)
### C070 · Σ|Δ| 1.7 · 1 certs · `hpcdb18560/gas | cavity wall | pitched insulated | RR,ext1`
### C067 · Σ|Δ| 1.7 · 1 certs · `hpcdb18560/gas | cavity wall | pitched insulated | RR,ext1`
- [ ] `100010942905` · L 72 / E 73.70 / Δ +1.70 <- room-in-roof surface geometry (spec-mandated, worksheet-validated; see PRs #1440/#1441)
### C071 · Σ|Δ| 1.6 · 1 certs · `hpcdb18119/gas | solid brick | pitched 100 | ext1`
- [ ] `100030307976` · L 71 / E 69.37 / Δ -1.63 <- non-electric fabric/demand: per-cert lodged-geometry noise (field_bias scan clean, no coherent subgroup)
### C068 · Σ|Δ| 1.7 · 1 certs · `hpcdb18498/gas | solid brick | pitched 250 | RR,ext2`
- [ ] `10011740578` · L 70 / E 68.30 / Δ -1.70
### C072 · Σ|Δ| 1.6 · 1 certs · `hpcdb18909/gas | cavity wall | pitched 100 | whw903`
### C069 · Σ|Δ| 1.6 · 1 certs · `hpcdb18909/gas | cavity wall | pitched 100 | whw903`
- [ ] `100061404488` · L 70 / E 68.38 / Δ -1.62 <- non-electric fabric/demand: per-cert lodged-geometry noise (field_bias scan clean, no coherent subgroup)
### C073 · Σ|Δ| 1.6 · 1 certs · `h402/elec | system built | (another dwelling | sec:room heaters,whw903`
### C070 · Σ|Δ| 1.6 · 1 certs · `h402/elec | system built | (another dwelling | sec:room heaters,whw903`
- [ ] `21067296` · L 67 / E 68.60 / Δ +1.60 <- electric + fabric/demand mismatch (per-cert; not a coherent cluster)
### C074 · Σ|Δ| 1.6 · 1 certs · `hpcdb10164/gas | solid brick | pitched insulated | sec:room heaters`
### C071 · Σ|Δ| 1.6 · 1 certs · `hpcdb10164/gas | solid brick | pitched insulated | sec:room heaters`
- [ ] `5870047440` · L 58 / E 59.58 / Δ +1.58 <- non-electric fabric/demand: per-cert lodged-geometry noise (field_bias scan clean, no coherent subgroup)
### C075 · Σ|Δ| 1.6 · 1 certs · `hpcdb8051/gas | cavity wall | (same dwelling | ext2`
### C072 · Σ|Δ| 1.6 · 1 certs · `hpcdb8051/gas | cavity wall | (same dwelling | ext2`
- [ ] `100070450818` · L 65 / E 63.43 / Δ -1.57 <- non-electric fabric/demand: per-cert lodged-geometry noise (field_bias scan clean, no coherent subgroup)
### C076 · Σ|Δ| 1.6 · 1 certs · `hpcdb17741/gas | cavity wall | pitched 225`
### C073 · Σ|Δ| 1.6 · 1 certs · `hpcdb17741/gas | cavity wall | pitched 225`
- [ ] `100050881708` · L 70 / E 71.55 / Δ +1.55 <- non-electric fabric/demand: per-cert lodged-geometry noise (field_bias scan clean, no coherent subgroup)
### C077 · Σ|Δ| 1.5 · 1 certs · `h301/elec | system built | (another dwelling | whw950`
### C074 · Σ|Δ| 1.5 · 1 certs · `h301/elec | system built | (another dwelling | whw950`
- [ ] `10010254955` · L 79 / E 77.46 / Δ -1.54 <- electric other (per-cert cost noise)
### C078 · Σ|Δ| 1.5 · 1 certs · `hpcdb16839/gas | cavity wall | pitched 400+ | ext1,mv2,sec:room heaters`
### C075 · Σ|Δ| 1.5 · 1 certs · `hpcdb16839/gas | cavity wall | pitched 400+ | ext1,mv2,sec:room heaters`
- [ ] `3455011834` · L 69 / E 67.48 / Δ -1.52 <- non-electric fabric/demand: per-cert lodged-geometry noise (field_bias scan clean, no coherent subgroup)
### C079 · Σ|Δ| 1.5 · 1 certs · `hpcdb15502/gas | granite or | pitched 150 | RR,ext1,sec:room heaters`
### C076 · Σ|Δ| 1.5 · 1 certs · `hpcdb15502/gas | granite or | pitched 150 | RR,ext1,sec:room heaters`
- [ ] `100100274789` · L 60 / E 61.51 / Δ +1.51 <- room-in-roof surface geometry (spec-mandated, worksheet-validated; see PRs #1440/#1441)
### C080 · Σ|Δ| 1.5 · 1 certs · `hpcdb16453/gas | cavity wall | pitched 300 | consv2,ext1`
### C077 · Σ|Δ| 1.5 · 1 certs · `hpcdb16453/gas | cavity wall | pitched 300 | consv2,ext1`
- [ ] `100050852755` · L 65 / E 66.49 / Δ +1.49 <- non-electric fabric/demand: per-cert lodged-geometry noise (field_bias scan clean, no coherent subgroup)
### C081 · Σ|Δ| 1.5 · 1 certs · `hpcdb17679/gas | solid brick | pitched 125 | ext1`
- [ ] `100021326422` · L 70 / E 68.51 / Δ -1.49 <- non-electric fabric/demand: per-cert lodged-geometry noise (field_bias scan clean, no coherent subgroup)
### C082 · Σ|Δ| 1.5 · 1 certs · `hpcdb15029/gas | solid brick | pitched insulated | RR,ext1`
### C078 · Σ|Δ| 1.5 · 1 certs · `hpcdb15029/gas | solid brick | pitched insulated | RR,ext1`
- [ ] `100050988345` · L 61 / E 59.51 / Δ -1.49 <- room-in-roof surface geometry (spec-mandated, worksheet-validated; see PRs #1440/#1441)
### C083 · Σ|Δ| 1.5 · 1 certs · `hpcdb17998/gas | solid brick | pitched insulated | RR,consv2`
### C079 · Σ|Δ| 1.5 · 1 certs · `hpcdb17998/gas | solid brick | pitched insulated | RR,consv2`
- [ ] `100030285758` · L 54 / E 55.48 / Δ +1.48 <- room-in-roof surface geometry (spec-mandated, worksheet-validated; see PRs #1440/#1441)
### C084 · Σ|Δ| 1.4 · 1 certs · `hpcdb17978/gas | solid brick | flat no | RR,ext1`
### C080 · Σ|Δ| 1.4 · 1 certs · `hpcdb17978/gas | solid brick | flat no | RR,ext1`
- [ ] `line80` · L 72 / E 70.56 / Δ -1.44
### C085 · Σ|Δ| 1.4 · 1 certs · `hpcdb10356/gas | solid brick | pitched 150 | RR,ext1,sec:room heaters`
### C081 · Σ|Δ| 1.4 · 1 certs · `hpcdb10356/gas | solid brick | pitched 150 | RR,ext1,sec:room heaters`
- [ ] `100080518673` · L 57 / E 58.42 / Δ +1.42 <- room-in-roof surface geometry (spec-mandated, worksheet-validated; see PRs #1440/#1441)
### C086 · Σ|Δ| 1.4 · 1 certs · `hpcdb18561/gas | solid brick | pitched 250 | ext2`
### C082 · Σ|Δ| 1.4 · 1 certs · `hpcdb18561/gas | solid brick | pitched 250 | ext2`
- [ ] `235025284` · L 69 / E 67.59 / Δ -1.41 <- non-electric fabric/demand: per-cert lodged-geometry noise (field_bias scan clean, no coherent subgroup)
### C087 · Σ|Δ| 1.4 · 1 certs · `hpcdb18767/gas | sandstone as | (another dwelling`
### C083 · Σ|Δ| 1.4 · 1 certs · `hpcdb18767/gas | sandstone as | (another dwelling`
- [ ] `250063088` · L 73 / E 71.60 / Δ -1.40 <- non-electric fabric/demand: per-cert lodged-geometry noise (field_bias scan clean, no coherent subgroup)
### C088 · Σ|Δ| 1.4 · 1 certs · `hpcdb16210/gas | cavity wall | pitched 300 | sec:room heaters`
### C084 · Σ|Δ| 1.4 · 1 certs · `hpcdb16210/gas | cavity wall | pitched 300 | sec:room heaters`
- [ ] `100110097281` · L 64 / E 65.37 / Δ +1.37 <- non-electric fabric/demand: per-cert lodged-geometry noise (field_bias scan clean, no coherent subgroup)
### C089 · Σ|Δ| 1.4 · 1 certs · `h691/elec | solid brick | (another dwelling | whw903`
### C085 · Σ|Δ| 1.4 · 1 certs · `h691/elec | solid brick | (another dwelling | whw903`
- [ ] `10091630692` · L 58 / E 56.63 / Δ -1.37 <- non-electric fabric/demand: per-cert lodged-geometry noise (field_bias scan clean, no coherent subgroup)
### C090 · Σ|Δ| 1.3 · 1 certs · `hpcdb19227/fuel28 | solid brick | pitched 100 | RR,ext3,sec:room heaters`
### C086 · Σ|Δ| 1.3 · 1 certs · `hpcdb19227/fuel28 | solid brick | pitched 100 | RR,ext3,sec:room heaters`
- [ ] `100012368622` · L 39 / E 40.32 / Δ +1.32 <- room-in-roof surface geometry (spec-mandated, worksheet-validated; see PRs #1440/#1441)
### C091 · Σ|Δ| 1.3 · 1 certs · `hpcdb19007/gas | solid brick | pitched insulated | RR,ext2,sec:room heaters`
### C087 · Σ|Δ| 1.3 · 1 certs · `hpcdb19007/gas | solid brick | pitched insulated | RR,ext2,sec:room heaters`
- [ ] `90077194` · L 65 / E 63.69 / Δ -1.31 <- room-in-roof surface geometry (spec-mandated, worksheet-validated; see PRs #1440/#1441)
### C092 · Σ|Δ| 1.3 · 1 certs · `hpcdb19083/gas | cavity wall | pitched 75 | RR,consv2`
### C088 · Σ|Δ| 1.3 · 1 certs · `hpcdb19083/gas | cavity wall | pitched 75 | RR,consv2`
- [ ] `100031461986` · L 70 / E 71.29 / Δ +1.29 <- room-in-roof surface geometry (spec-mandated, worksheet-validated; see PRs #1440/#1441)
### C093 · Σ|Δ| 1.3 · 1 certs · `h691/elec | granite or | pitched insulated | PV,ext3,whw903`
### C089 · Σ|Δ| 1.3 · 1 certs · `h691/elec | granite or | pitched insulated | PV,ext3,whw903`
- [ ] `30095054` · L 46 / E 44.74 / Δ -1.26 <- non-electric cost (secondary fuel/cylinder/tariff); spec-faithful vs lodged
### C094 · Σ|Δ| 1.3 · 1 certs · `hpcdb18335/gas | cavity wall | pitched 100 | RR,ext1,sec:room heaters`
### C090 · Σ|Δ| 1.3 · 1 certs · `hpcdb18335/gas | cavity wall | pitched 100 | RR,ext1,sec:room heaters`
- [ ] `100100055589` · L 58 / E 59.26 / Δ +1.26 <- room-in-roof surface geometry (spec-mandated, worksheet-validated; see PRs #1440/#1441)
### C095 · Σ|Δ| 1.2 · 1 certs · `h409/elec | solid brick | (another dwelling | consv2,sec:portable electric,whw909`
### C091 · Σ|Δ| 1.2 · 1 certs · `h409/elec | solid brick | (another dwelling | consv2,sec:portable electric,whw909`
- [ ] `74061136` · L 73 / E 71.75 / Δ -1.25 <- electric storage cat7 E7: over-rate = off-peak rate/fraction too generous; needs Elmhurst tariff arbitration
### C096 · Σ|Δ| 1.2 · 1 certs · `hpcdb15101/gas | cavity wall | pitched 270 | consv3,sec:room heaters`
### C092 · Σ|Δ| 1.2 · 1 certs · `hpcdb15101/gas | cavity wall | pitched 270 | consv3,sec:room heaters`
- [ ] `100091435353` · L 65 / E 66.23 / Δ +1.23 <- non-electric fabric/demand: per-cert lodged-geometry noise (field_bias scan clean, no coherent subgroup)
### C097 · Σ|Δ| 1.2 · 2 certs · `h301/coal-anth | system built | (another dwelling`
### C093 · Σ|Δ| 1.2 · 2 certs · `h301/coal-anth | system built | (another dwelling`
- [ ] `10091070164` · L 69 / E 69.60 / Δ +0.60
- [ ] `10090927185` · L 79 / E 79.60 / Δ +0.60
### C098 · Σ|Δ| 1.2 · 1 certs · `hpcdb19110/gas | cavity wall | pitched no | ext3`
### C094 · Σ|Δ| 1.2 · 1 certs · `hpcdb19110/gas | cavity wall | pitched no | ext3`
- [ ] `100100614412` · L 53 / E 51.81 / Δ -1.19 <- non-electric fabric/demand: per-cert lodged-geometry noise (field_bias scan clean, no coherent subgroup)
### C099 · Σ|Δ| 1.2 · 1 certs · `hpcdb18658/gas | solid brick | flat no`
- [ ] `217091901` · L 62 / E 60.82 / Δ -1.18 <- non-electric fabric/demand: per-cert lodged-geometry noise (field_bias scan clean, no coherent subgroup)
### C100 · Σ|Δ| 1.2 · 1 certs · `hpcdb17115/gas | sandstone as | (another dwelling | ext2,sec:room heaters`
### C095 · Σ|Δ| 1.2 · 1 certs · `hpcdb17115/gas | sandstone as | (another dwelling | ext2,sec:room heaters`
- [x] `line768` · L 57 / E 55.84 / Δ -1.16
### C101 · Σ|Δ| 1.2 · 1 certs · `h102/gas | solid brick | (same dwelling | ext1,sec:portable electric`
### C096 · Σ|Δ| 1.2 · 1 certs · `h102/gas | solid brick | (same dwelling | ext1,sec:portable electric`
- [ ] `217061895` · L 61 / E 59.84 / Δ -1.16 <- non-electric fabric/demand: per-cert lodged-geometry noise (field_bias scan clean, no coherent subgroup)
### C102 · Σ|Δ| 1.1 · 1 certs · `hpcdb15708/gas | cavity wall | pitched insulated | RR,sec:room heaters`
### C097 · Σ|Δ| 1.1 · 1 certs · `hpcdb15708/gas | cavity wall | pitched insulated | RR,sec:room heaters`
- [ ] `10002349227` · L 76 / E 77.14 / Δ +1.14 <- room-in-roof surface geometry (spec-mandated, worksheet-validated; see PRs #1440/#1441)
### C103 · Σ|Δ| 1.1 · 1 certs · `hpcdb15451/gas | timber frame | pitched insulated | RR,ext1,sec:room heaters`
### C098 · Σ|Δ| 1.1 · 1 certs · `hpcdb18119/gas | solid brick | pitched 100 | ext1`
- [ ] `100030307976` · L 71 / E 69.86 / Δ -1.14 <- non-electric fabric/demand: per-cert lodged-geometry noise (field_bias scan clean, no coherent subgroup)
### C099 · Σ|Δ| 1.1 · 1 certs · `hpcdb15451/gas | timber frame | pitched insulated | RR,ext1,sec:room heaters`
- [ ] `200001634005` · L 66 / E 67.11 / Δ +1.11 <- room-in-roof surface geometry (spec-mandated, worksheet-validated; see PRs #1440/#1441)
### C104 · Σ|Δ| 1.1 · 1 certs · `hpcdb16407/gas | cavity wall | pitched 250 | ext1,sec:room heaters`
### C100 · Σ|Δ| 1.1 · 1 certs · `hpcdb16407/gas | cavity wall | pitched 250 | ext1,sec:room heaters`
- [ ] `100071059081` · L 63 / E 64.09 / Δ +1.09 <- non-electric fabric/demand: per-cert lodged-geometry noise (field_bias scan clean, no coherent subgroup)
### C105 · Σ|Δ| 1.1 · 1 certs · `hpcdb17973/gas | solid brick | (another dwelling`
### C101 · Σ|Δ| 1.1 · 1 certs · `hpcdb17973/gas | solid brick | (another dwelling`
- [ ] `5117280` · L 76 / E 77.08 / Δ +1.08 <- 🔧 thin-internal-insulation bucket-0 fix: present insulation + known <25mm thickness was mapped to uninsulated (U 1.7); now routes to 50mm row like unknown-thickness. Δ-4.44 -> +1.08.
### C106 · Σ|Δ| 1.1 · 1 certs · `hpcdb19007/gas+2mains | cavity wall | pitched 350 | ext2,mv5,sec:room heaters,whw914`
### C102 · Σ|Δ| 1.1 · 1 certs · `hpcdb19007/gas+2mains | cavity wall | pitched 350 | ext2,mv5,sec:room heaters,whw914`
- [ ] `100011820199` · L 55 / E 56.06 / Δ +1.06 <- non-electric fabric/demand: per-cert lodged-geometry noise (field_bias scan clean, no coherent subgroup)
### C107 · Σ|Δ| 1.1 · 1 certs · `h691/elec | system built | (another dwelling | whw903`
### C103 · Σ|Δ| 1.1 · 1 certs · `h691/elec | system built | (another dwelling | whw903`
- [ ] `90214753` · L 83 / E 81.95 / Δ -1.05 <- non-electric cost (secondary fuel/cylinder/tariff); spec-faithful vs lodged
### C108 · Σ|Δ| 1.0 · 1 certs · `h102/gas | cavity wall | pitched insulated | consv2`
### C104 · Σ|Δ| 1.1 · 1 certs · `hpcdb17570/gas+2mains | solid brick | (another dwelling | RR,ext3,sec:room heaters`
- [ ] `100022668387` · L 68 / E 66.95 / Δ -1.05 <- room-in-roof surface geometry (spec-mandated, worksheet-validated; see PRs #1440/#1441)
### C105 · Σ|Δ| 1.0 · 1 certs · `h102/gas | cavity wall | pitched insulated | consv2`
- [ ] `100051051866` · L 70 / E 71.04 / Δ +1.04 <- non-electric fabric/demand: per-cert lodged-geometry noise (field_bias scan clean, no coherent subgroup)
### C109 · Σ|Δ| 1.0 · 1 certs · `hpcdb18737/gas | cavity wall | pitched insulated | PV,sec:room heaters`
### C106 · Σ|Δ| 1.0 · 1 certs · `hpcdb18737/gas | cavity wall | pitched insulated | PV,sec:room heaters`
- [ ] `10013836852` · L 100 / E 98.97 / Δ -1.03 <- non-electric fabric/demand: per-cert lodged-geometry noise (field_bias scan clean, no coherent subgroup)
### C110 · Σ|Δ| 1.0 · 1 certs · `hpcdb17985/gas | solid brick | (another dwelling`
### C107 · Σ|Δ| 1.0 · 1 certs · `hpcdb17985/gas | solid brick | (another dwelling`
- [ ] `line899` · L 73 / E 71.97 / Δ -1.03
### C111 · Σ|Δ| 1.0 · 1 certs · `hpcdb18524/gas+2mains | cavity wall | pitched 400+ | ext4`
### C108 · Σ|Δ| 1.0 · 1 certs · `hpcdb18524/gas+2mains | cavity wall | pitched 400+ | ext4`
- [ ] `40037847` · L 81 / E 79.98 / Δ -1.02 <- non-electric fabric/demand: per-cert lodged-geometry noise (field_bias scan clean, no coherent subgroup)
### C112 · Σ|Δ| 1.0 · 1 certs · `hpcdb19012/gas | cavity wall | pitched insulated`
### C109 · Σ|Δ| 1.0 · 1 certs · `hpcdb19012/gas | cavity wall | pitched insulated`
- [ ] `10070056075` · L 80 / E 78.99 / Δ -1.01 <- non-electric fabric/demand: per-cert lodged-geometry noise (field_bias scan clean, no coherent subgroup)
### C113 · Σ|Δ| 1.0 · 1 certs · `hpcdb16843/gas+2mains | cavity wall | pitched insulated | PV,RR,ext2`
### C110 · Σ|Δ| 1.0 · 1 certs · `hpcdb16843/gas+2mains | cavity wall | pitched insulated | PV,RR,ext2`
- [ ] `200131078` · L 86 / E 85.00 / Δ -1.00 <- room-in-roof surface geometry (spec-mandated, worksheet-validated; see PRs #1440/#1441)
### C114 · Σ|Δ| 1.0 · 1 certs · `hpcdb17489/gas | cavity wall | pitched 270 | PV,consv2,ext1,sec:room heaters`
### C111 · Σ|Δ| 1.0 · 1 certs · `hpcdb17489/gas | cavity wall | pitched 270 | PV,consv2,ext1,sec:room heaters`
- [ ] `10000245212` · L 101 / E 100.00 / Δ -1.00 <- non-electric cost (secondary fuel/cylinder/tariff); spec-faithful vs lodged
### C115 · Σ|Δ| 1.0 · 1 certs · `h191/elec | solid brick | (another dwelling | ext2,whw909`
- [ ] `15129162` · L 62 / E 61.00 / Δ -1.00
### C116 · Σ|Δ| 1.0 · 1 certs · `h301/coal-anth | cavity wall | pitched 270`
### C112 · Σ|Δ| 1.0 · 1 certs · `h301/coal-anth | cavity wall | pitched 270`
- [ ] `23032873` · L 73 / E 72.00 / Δ -1.00
### C117 · Σ|Δ| 1.0 · 1 certs · `hpcdb16930/gas | cavity wall | pitched unknown | RR,ext1,sec:room heaters`
### C113 · Σ|Δ| 1.0 · 1 certs · `hpcdb16930/gas | cavity wall | pitched unknown | RR,ext1,sec:room heaters`
- [ ] `45019020` · L 62 / E 61.01 / Δ -0.99
### C118 · Σ|Δ| 1.0 · 1 certs · `hpcdb17939/gas | solid brick | (another dwelling`
### C114 · Σ|Δ| 1.0 · 1 certs · `hpcdb17939/gas | solid brick | (another dwelling`
- [ ] `42065028` · L 59 / E 58.02 / Δ -0.98
### C119 · Σ|Δ| 1.0 · 1 certs · `hpcdb10071/gas | cavity wall | pitched 150 | RR`
### C115 · Σ|Δ| 1.0 · 1 certs · `hpcdb10071/gas | cavity wall | pitched 150 | RR`
- [ ] `10032928147` · L 77 / E 76.04 / Δ -0.96
### C120 · Σ|Δ| 1.0 · 1 certs · `hpcdb17045/gas | cavity wall | pitched 300`
### C116 · Σ|Δ| 1.0 · 1 certs · `hpcdb17045/gas | cavity wall | pitched 300`
- [ ] `10010678937` · L 78 / E 77.04 / Δ -0.96
### C121 · Σ|Δ| 1.0 · 1 certs · `hpcdb15247/gas | cavity wall | pitched insulated | RR`
### C117 · Σ|Δ| 1.0 · 1 certs · `hpcdb15247/gas | cavity wall | pitched insulated | RR`
- [ ] `100011010151` · L 62 / E 62.96 / Δ +0.96
### C122 · Σ|Δ| 1.0 · 1 certs · `hpcdb16406/gas | solid brick | pitched insulated | RR,consv2,ext2,sec:room heaters`
- [ ] `100050477371` · L 65 / E 64.04 / Δ -0.96
### C123 · Σ|Δ| 0.9 · 1 certs · `hpcdb17529/fuel28 | cavity wall | pitched insulated | RR,ext2,sec:room heaters`
### C118 · Σ|Δ| 0.9 · 1 certs · `hpcdb17529/fuel28 | cavity wall | pitched insulated | RR,ext2,sec:room heaters`
- [ ] `10002945522` · L 61 / E 61.94 / Δ +0.94
### C124 · Σ|Δ| 0.9 · 1 certs · `h691/elec+2mains | cob as | pitched 300 | whw903`
### C119 · Σ|Δ| 0.9 · 1 certs · `h691/elec+2mains | cob as | pitched 300 | whw903`
- [ ] `10032957680` · L 45 / E 45.94 / Δ +0.94
### C125 · Σ|Δ| 0.9 · 1 certs · `hpcdb18204/gas | solid brick | pitched 400+ | PV,ext2`
### C120 · Σ|Δ| 0.9 · 1 certs · `hpcdb18204/gas | solid brick | pitched 400+ | PV,ext2`
- [ ] `2465057465` · L 81 / E 81.93 / Δ +0.93
### C126 · Σ|Δ| 0.9 · 1 certs · `hpcdb19019/gas | solid brick | pitched 100 | ext3,sec:room heaters`
### C121 · Σ|Δ| 0.9 · 1 certs · `hpcdb19019/gas | solid brick | pitched 100 | ext3,sec:room heaters`
- [ ] `100090616327` · L 63 / E 63.93 / Δ +0.93
### C127 · Σ|Δ| 0.9 · 1 certs · `hpcdb17612/gas | cavity wall | pitched 270 | ext1`
### C122 · Σ|Δ| 0.9 · 1 certs · `hpcdb17612/gas | cavity wall | pitched 270 | ext1`
- [ ] `100012753833` · L 74 / E 73.07 / Δ -0.93
### C128 · Σ|Δ| 0.9 · 1 certs · `hpcdb19006/gas | solid brick | pitched 75 | ext1,sec:room heaters`
### C123 · Σ|Δ| 0.9 · 1 certs · `hpcdb19006/gas | solid brick | pitched 75 | ext1,sec:room heaters`
- [ ] `100031269525` · L 53 / E 53.91 / Δ +0.91
### C129 · Σ|Δ| 0.9 · 1 certs · `hpcdb17964/gas | cavity wall | pitched insulated | consv3`
### C124 · Σ|Δ| 0.9 · 1 certs · `hpcdb17964/gas | cavity wall | pitched insulated | consv3`
- [ ] `200003725358` · L 75 / E 74.09 / Δ -0.91
### C130 · Σ|Δ| 0.9 · 1 certs · `hpcdb17507/gas | solid brick | pitched insulated | RR,ext3`
### C125 · Σ|Δ| 0.9 · 1 certs · `hpcdb17507/gas | solid brick | pitched insulated | RR,ext3`
- [ ] `100050986162` · L 62 / E 61.10 / Δ -0.90
### C131 · Σ|Δ| 0.9 · 1 certs · `hpcdb17985/gas | cavity wall | (another dwelling | mv2`
### C126 · Σ|Δ| 0.9 · 1 certs · `hpcdb17985/gas | cavity wall | (another dwelling | mv2`
- [ ] `5300000141` · L 78 / E 77.10 / Δ -0.90
### C132 · Σ|Δ| 0.9 · 1 certs · `hpcdb18616/gas | cavity wall | pitched 250 | sec:room heaters`
### C127 · Σ|Δ| 0.9 · 1 certs · `hpcdb18616/gas | cavity wall | pitched 250 | sec:room heaters`
- [ ] `100050618404` · L 73 / E 73.89 / Δ +0.89
### C133 · Σ|Δ| 0.9 · 1 certs · `hpcdb17507/gas | cavity wall | pitched 250 | PV,ext1`
### C128 · Σ|Δ| 0.9 · 1 certs · `hpcdb17507/gas | cavity wall | pitched 250 | PV,ext1`
- [ ] `100090476016` · L 81 / E 81.89 / Δ +0.89
### C134 · Σ|Δ| 0.9 · 1 certs · `h691/elec | timber frame | pitched 200 | RR,ext3,whw903`
### C129 · Σ|Δ| 0.9 · 1 certs · `h691/elec | timber frame | pitched 200 | RR,ext3,whw903`
- [ ] `10012119141` · L 45 / E 45.89 / Δ +0.89
### C135 · Σ|Δ| 0.9 · 1 certs · `h524/elec | cavity wall | pitched 300 | PV`
### C130 · Σ|Δ| 0.9 · 1 certs · `h524/elec | cavity wall | pitched 300 | PV`
- [ ] `100040938206` · L 75 / E 75.89 / Δ +0.89
### C136 · Σ|Δ| 0.9 · 1 certs · `hpcdb18234/gas | cavity wall | pitched insulated | RR,consv2`
### C131 · Σ|Δ| 0.9 · 1 certs · `hpcdb18234/gas | cavity wall | pitched insulated | RR,consv2`
- [ ] `38188474` · L 76 / E 76.87 / Δ +0.87
### C137 · Σ|Δ| 0.9 · 1 certs · `hpcdb16777/gas | cavity wall | pitched 100 | ext1,sec:room heaters`
### C132 · Σ|Δ| 0.9 · 1 certs · `hpcdb16777/gas | cavity wall | pitched 100 | ext1,sec:room heaters`
- [ ] `100061194957` · L 69 / E 69.87 / Δ +0.87
### C138 · Σ|Δ| 0.9 · 1 certs · `hpcdb18559/gas+2mains | solid brick | pitched 200 | whw914`
### C133 · Σ|Δ| 0.9 · 1 certs · `hpcdb18559/gas+2mains | solid brick | pitched 200 | whw914`
- [ ] `100021236527` · L 72 / E 71.13 / Δ -0.87
### C139 · Σ|Δ| 0.9 · 1 certs · `hpcdb18907/gas | cavity wall | pitched 270 | consv2`
### C134 · Σ|Δ| 0.9 · 1 certs · `hpcdb18907/gas | cavity wall | pitched 270 | consv2`
- [ ] `100040193752` · L 71 / E 71.86 / Δ +0.86
### C140 · Σ|Δ| 0.9 · 1 certs · `hpcdb10327/gas | cavity wall | (another dwelling`
### C135 · Σ|Δ| 0.9 · 1 certs · `hpcdb10327/gas | cavity wall | (another dwelling`
- [ ] `100060701552` · L 74 / E 74.86 / Δ +0.86
### C141 · Σ|Δ| 0.9 · 1 certs · `h691/elec | system built | flat insulated | whw903`
### C136 · Σ|Δ| 0.9 · 1 certs · `h691/elec | system built | flat insulated | whw903`
- [ ] `10070396146` · L 61 / E 60.14 / Δ -0.86
### C142 · Σ|Δ| 0.8 · 1 certs · `hpcdb8587/gas | cavity wall | (another dwelling`
### C137 · Σ|Δ| 0.8 · 1 certs · `hpcdb8587/gas | cavity wall | (another dwelling`
- [ ] `100030528930` · L 74 / E 73.16 / Δ -0.84
### C143 · Σ|Δ| 0.8 · 1 certs · `hpcdb18212/gas | solid brick | (another dwelling`
### C138 · Σ|Δ| 0.8 · 1 certs · `hpcdb18212/gas | solid brick | (another dwelling`
- [ ] `100020982570` · L 72 / E 71.17 / Δ -0.83
### C144 · Σ|Δ| 0.8 · 1 certs · `hpcdb16888/gas | cavity wall | pitched 350 | consv2`
### C139 · Σ|Δ| 0.8 · 1 certs · `h191/elec | solid brick | (another dwelling | ext2,whw909`
- [ ] `15129162` · L 62 / E 61.17 / Δ -0.83
### C140 · Σ|Δ| 0.8 · 1 certs · `hpcdb16888/gas | cavity wall | pitched 350 | consv2`
- [ ] `394024487` · L 75 / E 74.17 / Δ -0.83
### C145 · Σ|Δ| 0.8 · 1 certs · `hpcdb17503/gas | solid brick | pitched insulated | RR,ext1,mv4`
### C141 · Σ|Δ| 0.8 · 1 certs · `hpcdb17503/gas | solid brick | pitched insulated | RR,ext1,mv4`
- [ ] `217070698` · L 78 / E 78.83 / Δ +0.83
### C146 · Σ|Δ| 0.8 · 1 certs · `hpcdb15709/gas | cavity wall | (another dwelling | ext1`
### C142 · Σ|Δ| 0.8 · 1 certs · `hpcdb15709/gas | cavity wall | (another dwelling | ext1`
- [ ] `77022508` · L 69 / E 68.18 / Δ -0.82
### C147 · Σ|Δ| 0.8 · 1 certs · `hpcdb18496/gas | cavity wall | pitched 250 | RR,consv4`
### C143 · Σ|Δ| 0.8 · 1 certs · `hpcdb18496/gas | cavity wall | pitched 250 | RR,consv4`
- [ ] `100040259104` · L 68 / E 68.82 / Δ +0.82
### C148 · Σ|Δ| 0.8 · 1 certs · `hpcdb18559/gas | solid brick | pitched 270 | ext1`
### C144 · Σ|Δ| 0.8 · 1 certs · `hpcdb18559/gas | solid brick | pitched 270 | ext1`
- [ ] `100031399026` · L 70 / E 70.81 / Δ +0.81
### C149 · Σ|Δ| 0.8 · 1 certs · `hpcdb16374/gas | cavity wall | pitched unknown`
### C145 · Σ|Δ| 0.8 · 1 certs · `hpcdb16374/gas | cavity wall | pitched unknown`
- [ ] `10009645698` · L 67 / E 67.81 / Δ +0.81
### C150 · Σ|Δ| 0.8 · 1 certs · `hpcdb16395/gas | timber frame | thatched with | ext1,sec:room heaters`
### C146 · Σ|Δ| 0.8 · 1 certs · `hpcdb16395/gas | timber frame | thatched with | ext1,sec:room heaters`
- [ ] `100080818887` · L 56 / E 55.19 / Δ -0.81
### C151 · Σ|Δ| 0.8 · 1 certs · `hpcdb16835/gas | solid brick | pitched insulated | RR,ext1`
### C147 · Σ|Δ| 0.8 · 1 certs · `hpcdb16835/gas | solid brick | pitched insulated | RR,ext1`
- [ ] `100012374381` · L 69 / E 69.80 / Δ +0.80
### C152 · Σ|Δ| 0.8 · 1 certs · `hpcdb17560/gas | cavity wall | pitched 250 | ext2`
### C148 · Σ|Δ| 0.8 · 1 certs · `hpcdb17560/gas | cavity wall | pitched 250 | ext2`
- [ ] `100012350270` · L 78 / E 77.20 / Δ -0.80
### C153 · Σ|Δ| 0.8 · 1 certs · `hpcdb15166/gas+2mains | sandstone as | pitched no | PV,ext4,sec:room heaters,whw914`
### C149 · Σ|Δ| 0.8 · 1 certs · `hpcdb15166/gas+2mains | sandstone as | pitched no | PV,ext4,sec:room heaters,whw914`
- [ ] `100051109723` · L 60 / E 60.78 / Δ +0.78
### C154 · Σ|Δ| 0.8 · 1 certs · `hpcdb18911/gas | cavity wall | pitched 50 | consv4`
### C150 · Σ|Δ| 0.8 · 1 certs · `hpcdb18911/gas | cavity wall | pitched 50 | consv4`
- [ ] `100061616915` · L 63 / E 62.22 / Δ -0.78
### C155 · Σ|Δ| 0.8 · 1 certs · `h691/elec | cavity wall | pitched 200 | whw903`
### C151 · Σ|Δ| 0.8 · 1 certs · `h691/elec | cavity wall | pitched 200 | whw903`
- [ ] `line71` · L 74 / E 74.77 / Δ +0.77
### C156 · Σ|Δ| 0.8 · 1 certs · `hpcdb17986/gas | cavity wall | (another dwelling`
### C152 · Σ|Δ| 0.8 · 1 certs · `hpcdb17986/gas | cavity wall | (another dwelling`
- [ ] `100011603934` · L 72 / E 71.23 / Δ -0.77
### C157 · Σ|Δ| 0.8 · 1 certs · `hpcdb10244/gas | cavity wall | pitched 100`
### C153 · Σ|Δ| 0.8 · 1 certs · `hpcdb10244/gas | cavity wall | pitched 100`
- [ ] `24030987` · L 73 / E 73.76 / Δ +0.76
### C158 · Σ|Δ| 0.8 · 1 certs · `h193/elec | solid brick | (another dwelling | whw909`
### C154 · Σ|Δ| 0.8 · 1 certs · `h193/elec | solid brick | (another dwelling | whw909`
- [ ] `100032043038` · L 74 / E 73.24 / Δ -0.76
### C159 · Σ|Δ| 0.8 · 1 certs · `hpcdb17513/gas | cavity wall | pitched unknown`
### C155 · Σ|Δ| 0.8 · 1 certs · `hpcdb17513/gas | cavity wall | pitched unknown`
- [ ] `100010866608` · L 71 / E 70.24 / Δ -0.76
### C160 · Σ|Δ| 0.7 · 1 certs · `hpcdb17965/gas | cavity wall | pitched insulated | RR,ext1,sec:room heaters`
### C156 · Σ|Δ| 0.7 · 1 certs · `hpcdb17965/gas | cavity wall | pitched insulated | RR,ext1,sec:room heaters`
- [ ] `100090399615` · L 67 / E 67.75 / Δ +0.75
### C161 · Σ|Δ| 0.7 · 1 certs · `hpcdb16137/gas | solid brick | pitched 150`
### C157 · Σ|Δ| 0.7 · 1 certs · `hpcdb16137/gas | solid brick | pitched 150`
- [ ] `200004296092` · L 71 / E 71.74 / Δ +0.74
### C162 · Σ|Δ| 0.7 · 1 certs · `hpcdb17576/gas | cavity wall | pitched insulated | RR,consv2`
### C158 · Σ|Δ| 0.7 · 1 certs · `hpcdb17576/gas | cavity wall | pitched insulated | RR,consv2`
- [ ] `10012341135` · L 79 / E 79.73 / Δ +0.73
### C163 · Σ|Δ| 0.7 · 1 certs · `h409/elec | cavity wall | (another dwelling | sec:portable electric,whw903`
### C159 · Σ|Δ| 0.7 · 1 certs · `h409/elec | cavity wall | (another dwelling | sec:portable electric,whw903`
- [ ] `100091005853` · L 70 / E 69.27 / Δ -0.73
### C164 · Σ|Δ| 0.7 · 1 certs · `hpcdb18908/gas | cavity wall | pitched 175`
### C160 · Σ|Δ| 0.7 · 1 certs · `hpcdb18908/gas | cavity wall | pitched 175`
- [ ] `100021533514` · L 71 / E 71.73 / Δ +0.73
### C165 · Σ|Δ| 0.7 · 1 certs · `h301/coal-anth | solid brick | (another dwelling`
### C161 · Σ|Δ| 0.7 · 1 certs · `h301/coal-anth | solid brick | (another dwelling`
- [ ] `5062075` · L 69 / E 69.72 / Δ +0.72
### C166 · Σ|Δ| 0.7 · 1 certs · `hpcdb18112/gas | cavity wall | pitched 100 | RR,ext1`
### C162 · Σ|Δ| 0.7 · 1 certs · `hpcdb18112/gas | cavity wall | pitched 100 | RR,ext1`
- [ ] `100040813308` · L 62 / E 62.72 / Δ +0.72
### C167 · Σ|Δ| 0.7 · 1 certs · `h104/gas | solid brick | pitched unknown | ext2`
- [ ] `38105600` · L 68 / E 67.28 / Δ -0.72
### C168 · Σ|Δ| 0.7 · 1 certs · `h104/gas | solid brick | pitched 200`
- [ ] `line255` · L 72 / E 71.29 / Δ -0.71
### C169 · Σ|Δ| 0.7 · 1 certs · `h304/elec | cavity wall | (another dwelling | whw950`
### C163 · Σ|Δ| 0.7 · 1 certs · `h304/elec | cavity wall | (another dwelling | whw950`
- [ ] `5300047580` · L 69 / E 68.30 / Δ -0.70
### C170 · Σ|Δ| 0.7 · 1 certs · `h104/gas | cavity wall | pitched 250 | ext1`
### C164 · Σ|Δ| 0.7 · 1 certs · `h104/gas | cavity wall | pitched 250 | ext1`
- [ ] `100110433403` · L 69 / E 68.32 / Δ -0.68
### C171 · Σ|Δ| 0.7 · 1 certs · `hpcdb16835/gas | cavity wall | pitched insulated`
### C165 · Σ|Δ| 0.7 · 1 certs · `hpcdb16835/gas | cavity wall | pitched insulated`
- [ ] `10093416558` · L 79 / E 78.32 / Δ -0.68
### C172 · Σ|Δ| 0.7 · 1 certs · `hpcdb18251/gas | solid brick | pitched 100`
### C166 · Σ|Δ| 0.7 · 1 certs · `hpcdb18251/gas | solid brick | pitched 100`
- [ ] `100050958217` · L 68 / E 68.68 / Δ +0.68
### C173 · Σ|Δ| 0.7 · 1 certs · `hpcdb18224/gas | solid brick | pitched 225 | ext1`
### C167 · Σ|Δ| 0.7 · 1 certs · `hpcdb18224/gas | solid brick | pitched 225 | ext1`
- [ ] `100022667797` · L 68 / E 67.32 / Δ -0.68
### C174 · Σ|Δ| 0.7 · 1 certs · `hpcdb10243/gas | cavity wall | pitched insulated | RR,sec:room heaters`
### C168 · Σ|Δ| 0.7 · 1 certs · `hpcdb10243/gas | cavity wall | pitched insulated | RR,sec:room heaters`
- [ ] `100030528925` · L 78 / E 78.65 / Δ +0.65
### C175 · Σ|Δ| 0.6 · 1 certs · `hpcdb17657/gas | cavity wall | (another dwelling`
### C169 · Σ|Δ| 0.6 · 1 certs · `hpcdb17657/gas | cavity wall | (another dwelling`
- [ ] `100110300037` · L 74 / E 73.35 / Δ -0.65
### C176 · Σ|Δ| 0.6 · 1 certs · `hpcdb2044/gas | solid brick | (another dwelling | ext1`
### C170 · Σ|Δ| 0.6 · 1 certs · `hpcdb2044/gas | solid brick | (another dwelling | ext1`
- [ ] `217092450` · L 52 / E 52.64 / Δ +0.64
### C177 · Σ|Δ| 0.6 · 1 certs · `hpcdb15101/gas | solid brick | pitched 300`
- [ ] `100061164545` · L 72 / E 71.36 / Δ -0.64
### C178 · Σ|Δ| 0.6 · 1 certs · `hpcdb10328/gas | cavity wall | pitched unknown`
### C171 · Σ|Δ| 0.6 · 1 certs · `hpcdb10328/gas | cavity wall | pitched unknown`
- [ ] `100051075936` · L 71 / E 70.36 / Δ -0.64
### C179 · Σ|Δ| 0.6 · 1 certs · `hpcdb17507/gas | cavity wall | roof room(s) | RR,sec:room heaters`
### C172 · Σ|Δ| 0.6 · 1 certs · `hpcdb17507/gas | cavity wall | roof room(s) | RR,sec:room heaters`
- [ ] `100011565830` · L 72 / E 72.64 / Δ +0.64
### C180 · Σ|Δ| 0.6 · 1 certs · `hpcdb15700/gas | sandstone with | pitched 100 | RR,sec:room heaters`
### C173 · Σ|Δ| 0.6 · 1 certs · `hpcdb15700/gas | sandstone with | pitched 100 | RR,sec:room heaters`
- [ ] `61010956` · L 75 / E 74.37 / Δ -0.63
### C181 · Σ|Δ| 0.6 · 1 certs · `hpcdb17115/gas+2mains | cavity wall | pitched insulated | RR,ext4,sec:room heaters`
### C174 · Σ|Δ| 0.6 · 1 certs · `hpcdb17115/gas+2mains | cavity wall | pitched insulated | RR,ext4,sec:room heaters`
- [ ] `100110752514` · L 67 / E 67.62 / Δ +0.62
### C182 · Σ|Δ| 0.6 · 1 certs · `h404/elec | cavity wall | pitched 175 | sec:room heaters,whw909`
### C175 · Σ|Δ| 0.6 · 1 certs · `h404/elec | cavity wall | pitched 175 | sec:room heaters,whw909`
- [ ] `100070295212` · L 75 / E 74.38 / Δ -0.62
### C183 · Σ|Δ| 0.6 · 1 certs · `hpcdb18766/gas+2mains | sandstone as | pitched 100 | RR`
### C176 · Σ|Δ| 0.6 · 1 certs · `hpcdb18766/gas+2mains | sandstone as | pitched 100 | RR`
- [ ] `100012534027` · L 65 / E 64.38 / Δ -0.62
### C184 · Σ|Δ| 0.6 · 1 certs · `hpcdb9058/fuel28 | solid brick | pitched 100 | RR,ext2,sec:room heaters`
### C177 · Σ|Δ| 0.6 · 1 certs · `hpcdb9058/fuel28 | solid brick | pitched 100 | RR,ext2,sec:room heaters`
- [x] `10009812472` · L 40 / E 39.40 / Δ -0.60
### C185 · Σ|Δ| 0.6 · 1 certs · `hpcdb18218/gas | solid brick | (another dwelling`
- [ ] `34080035` · L 77 / E 76.41 / Δ -0.59
### C186 · Σ|Δ| 0.6 · 1 certs · `hpcdb16137/gas | cavity wall | pitched 150 | RR,ext1`
### C178 · Σ|Δ| 0.6 · 1 certs · `hpcdb16137/gas | cavity wall | pitched 150 | RR,ext1`
- [ ] `21032732` · L 69 / E 69.59 / Δ +0.59
### C187 · Σ|Δ| 0.6 · 1 certs · `h101/gas | cavity wall | pitched 100 | RR,ext1`
### C179 · Σ|Δ| 0.6 · 1 certs · `h101/gas | cavity wall | pitched 100 | RR,ext1`
- [ ] `100060562056` · L 66 / E 65.41 / Δ -0.59
### C188 · Σ|Δ| 0.6 · 1 certs · `hpcdb17514/fuel27 | cavity wall | pitched 400+ | PV,ext2`
### C180 · Σ|Δ| 0.6 · 1 certs · `hpcdb17514/fuel27 | cavity wall | pitched 400+ | PV,ext2`
- [ ] `100091086558` · L 79 / E 79.58 / Δ +0.58
### C189 · Σ|Δ| 0.6 · 1 certs · `hpcdb18908/gas | solid brick | (another dwelling`
### C181 · Σ|Δ| 0.6 · 1 certs · `hpcdb18908/gas | solid brick | (another dwelling`
- [ ] `line599` · L 74 / E 73.42 / Δ -0.58
### C190 · Σ|Δ| 0.6 · 1 certs · `hpcdb17973/gas | cavity wall | pitched insulated`
### C182 · Σ|Δ| 0.6 · 1 certs · `hpcdb17973/gas | cavity wall | pitched insulated`
- [ ] `100020407741` · L 72 / E 71.42 / Δ -0.58
### C191 · Σ|Δ| 0.6 · 1 certs · `hpcdb19007/gas | cavity wall | pitched 200 | consv2,ext1,sec:room heaters`
### C183 · Σ|Δ| 0.6 · 1 certs · `hpcdb19007/gas | cavity wall | pitched 200 | consv2,ext1,sec:room heaters`
- [ ] `100050839457` · L 70 / E 70.57 / Δ +0.57
### C192 · Σ|Δ| 0.6 · 1 certs · `hpcdb19007/gas | solid brick | pitched insulated | RR,sec:room heaters`
### C184 · Σ|Δ| 0.6 · 1 certs · `hpcdb19007/gas | solid brick | pitched insulated | RR,sec:room heaters`
- [ ] `42105250` · L 59 / E 59.57 / Δ +0.57
### C193 · Σ|Δ| 0.6 · 1 certs · `hpcdb1917/gas | timber frame | pitched insulated`
### C185 · Σ|Δ| 0.6 · 1 certs · `hpcdb1917/gas | timber frame | pitched insulated`
- [ ] `77200509` · L 69 / E 69.57 / Δ +0.57
### C194 · Σ|Δ| 0.6 · 1 certs · `hpcdb10356/gas | cavity wall | pitched insulated | ext2`
### C186 · Σ|Δ| 0.6 · 1 certs · `hpcdb10356/gas | cavity wall | pitched insulated | ext2`
- [ ] `200040534` · L 65 / E 65.56 / Δ +0.56
### C195 · Σ|Δ| 0.6 · 1 certs · `hpcdb17507/gas | solid brick | pitched 150 | ext1,mv2`
### C187 · Σ|Δ| 0.6 · 1 certs · `hpcdb17507/gas | solid brick | pitched 150 | ext1,mv2`
- [ ] `200049463` · L 69 / E 69.56 / Δ +0.56
### C196 · Σ|Δ| 0.6 · 1 certs · `h126/fuel28+2mains | cavity wall | pitched 300 | RR,consv2,ext3,sec:room heaters`
### C188 · Σ|Δ| 0.6 · 1 certs · `h126/fuel28+2mains | cavity wall | pitched 300 | RR,consv2,ext3,sec:room heaters`
- [ ] `100062527568` · L 61 / E 61.56 / Δ +0.56
### C197 · Σ|Δ| 0.6 · 1 certs · `hpcdb15700/gas | cavity wall | pitched limited | RR,ext1`
### C189 · Σ|Δ| 0.6 · 1 certs · `hpcdb15700/gas | cavity wall | pitched limited | RR,ext1`
- [ ] `100100268900` · L 69 / E 69.56 / Δ +0.56
### C198 · Σ|Δ| 0.6 · 1 certs · `hpcdb17004/fuel27+2mains | sandstone as | pitched no | ext3,sec:room heaters`
### C190 · Σ|Δ| 0.6 · 1 certs · `hpcdb17004/fuel27+2mains | sandstone as | pitched no | ext3,sec:room heaters`
- [x] `200003110548` · L 29 / E 28.45 / Δ -0.55
### C199 · Σ|Δ| 0.5 · 1 certs · `hpcdb9464/gas | cavity wall | pitched 150 | ext1`
### C191 · Σ|Δ| 0.5 · 1 certs · `hpcdb9464/gas | cavity wall | pitched 150 | ext1`
- [ ] `90036914` · L 60 / E 60.55 / Δ +0.55
### C200 · Σ|Δ| 0.5 · 1 certs · `h409/elec | cavity wall | pitched 250 | mv5,sec:room heaters,whw903`
### C192 · Σ|Δ| 0.5 · 1 certs · `h409/elec | cavity wall | pitched 250 | mv5,sec:room heaters,whw903`
- [ ] `10004742671` · L 70 / E 69.46 / Δ -0.54
### C201 · Σ|Δ| 0.5 · 1 certs · `hpcdb18251/gas | cavity wall | roof room(s) | RR`
### C193 · Σ|Δ| 0.5 · 1 certs · `hpcdb18251/gas | cavity wall | roof room(s) | RR`
- [ ] `100010657450` · L 75 / E 75.54 / Δ +0.54
### C202 · Σ|Δ| 0.5 · 1 certs · `hpcdb17507/gas | cavity wall | pitched 150 | ext1`
### C194 · Σ|Δ| 0.5 · 1 certs · `hpcdb17507/gas | cavity wall | pitched 150 | ext1`
- [ ] `100061834344` · L 71 / E 70.46 / Δ -0.54
### C203 · Σ|Δ| 0.5 · 1 certs · `h113/gas | cavity wall | pitched 200`
### C195 · Σ|Δ| 0.5 · 1 certs · `h113/gas | cavity wall | pitched 200`
- [ ] `4510097194` · L 70 / E 70.53 / Δ +0.53
### C204 · Σ|Δ| 0.5 · 1 certs · `hpcdb18907/gas | cavity wall | pitched 125 | ext1`
### C196 · Σ|Δ| 0.5 · 1 certs · `hpcdb18907/gas | cavity wall | pitched 125 | ext1`
- [ ] `100010913220` · L 72 / E 72.53 / Δ +0.53
### C205 · Σ|Δ| 0.5 · 1 certs · `hpcdb18908/gas | solid brick | pitched 300`
### C197 · Σ|Δ| 0.5 · 1 certs · `hpcdb18908/gas | solid brick | pitched 300`
- [ ] `207032630` · L 74 / E 73.47 / Δ -0.53
### C206 · Σ|Δ| 0.5 · 1 certs · `hpcdb18242/gas | sandstone as | pitched 150 | ext2,sec:room heaters`
### C198 · Σ|Δ| 0.5 · 1 certs · `hpcdb18242/gas | sandstone as | pitched 150 | ext2,sec:room heaters`
- [ ] `43074051` · L 63 / E 62.48 / Δ -0.52
### C207 · Σ|Δ| 0.5 · 1 certs · `h104/gas | cavity wall | pitched 300`
### C199 · Σ|Δ| 0.5 · 1 certs · `h104/gas | cavity wall | pitched 300`
- [ ] `100010723814` · L 69 / E 69.52 / Δ +0.52
### C208 · Σ|Δ| 0.5 · 1 certs · `hpcdb16137/gas | cavity wall | (another dwelling`
### C200 · Σ|Δ| 0.5 · 1 certs · `hpcdb16137/gas | cavity wall | (another dwelling`
- [ ] `100020955792` · L 77 / E 77.52 / Δ +0.52
### C209 · Σ|Δ| 0.5 · 1 certs · `hpcdb19079/gas | cavity wall | pitched 200 | ext1,sec:room heaters`
### C201 · Σ|Δ| 0.5 · 1 certs · `hpcdb19079/gas | cavity wall | pitched 200 | ext1,sec:room heaters`
- [ ] `77172223` · L 65 / E 65.52 / Δ +0.52
### C210 · Σ|Δ| 0.5 · 1 certs · `hpcdb10242/gas | granite or | pitched insulated | RR,sec:room heaters`
### C202 · Σ|Δ| 0.5 · 1 certs · `hpcdb10242/gas | granite or | pitched insulated | RR,sec:room heaters`
- [ ] `100051245439` · L 62 / E 61.48 / Δ -0.52
### C211 · Σ|Δ| 0.5 · 1 certs · `hpcdb10328/gas | cavity wall | (another dwelling`
### C203 · Σ|Δ| 0.5 · 1 certs · `hpcdb10328/gas | cavity wall | (another dwelling`
- [ ] `100012553958` · L 67 / E 66.48 / Δ -0.52
### C212 · Σ|Δ| 0.5 · 1 certs · `hpcdb10033/gas | cavity wall | pitched 200 | ext2,sec:room heaters`
### C204 · Σ|Δ| 0.5 · 1 certs · `hpcdb10033/gas | cavity wall | pitched 200 | ext2,sec:room heaters`
- [ ] `100110108632` · L 63 / E 63.51 / Δ +0.51
### C213 · Σ|Δ| 0.5 · 1 certs · `h109/gas | cavity wall | pitched 270 | consv2,ext1,sec:room heaters`
### C205 · Σ|Δ| 0.5 · 1 certs · `h109/gas | cavity wall | pitched 270 | consv2,ext1,sec:room heaters`
- [ ] `100091102581` · L 65 / E 65.51 / Δ +0.51
### C214 · Σ|Δ| 0.5 · 1 certs · `hpcdb19008/gas | cavity wall | pitched 150 | ext1,sec:room heaters`
### C206 · Σ|Δ| 0.5 · 1 certs · `hpcdb19008/gas | cavity wall | pitched 150 | ext1,sec:room heaters`
- [ ] `10002326688` · L 69 / E 68.50 / Δ -0.50
### C215 · Σ|Δ| 0.5 · 1 certs · `h129/fuel28 | granite or | pitched 200 | ext2,sec:room heaters`
### C207 · Σ|Δ| 0.5 · 1 certs · `h129/fuel28 | granite or | pitched 200 | ext2,sec:room heaters`
- [ ] `10023132869` · L 46 / E 45.50 / Δ -0.50
### C216 · Σ|Δ| 0.5 · 1 certs · `hpcdb9007/fuel28 | sandstone as | pitched insulated | RR,ext4,sec:room heaters`
### C208 · Σ|Δ| 0.5 · 1 certs · `hpcdb9007/fuel28 | sandstone as | pitched insulated | RR,ext4,sec:room heaters`
- [ ] `10091707271` · L 41 / E 41.50 / Δ +0.50
## Resolved ≤0.5 (778 certs — no action)
## Resolved ≤0.5 (786 certs — no action)
<details><summary>expand</summary>
@ -698,7 +674,6 @@ Statuses: `[ ]` todo · `[x]` resolved ≤0.5 · 🔧 fix landed · ⚠ xfail en
- [x] `100100840201` · L 60 / E 60.48 / Δ +0.48 · `hpcdb10244/gas | granite or | pitched 100 | ext1`
- [x] `100071135609` · L 68 / E 68.48 / Δ +0.48 · `hpcdb18229/gas | solid brick | pitched 200 | ext2`
- [x] `100121043224` · L 77 / E 77.48 / Δ +0.48 · `hpcdb1758/gas | cavity wall | pitched 300`
- [x] `30025401` · L 70 / E 69.52 / Δ -0.48 · `hpcdb18433/gas | cavity wall | pitched 270 | ext2`
- [x] `100021037247` · L 71 / E 70.52 / Δ -0.48 · `hpcdb10112/gas | solid brick | (another dwelling`
- [x] `10013778285` · L 80 / E 79.52 / Δ -0.48 · `hpcdb16138/gas | cavity wall | (another dwelling`
- [x] `100010348502` · L 76 / E 75.52 / Δ -0.48 · `hpcdb16839/gas | cavity wall | pitched 175`
@ -732,7 +707,6 @@ Statuses: `[ ]` todo · `[x]` resolved ≤0.5 · 🔧 fix landed · ⚠ xfail en
- [x] `1775121297` · L 79 / E 78.55 / Δ -0.45 · `hpcdb16400/gas | cavity wall | pitched 300 | PV`
- [x] `100070304824` · L 76 / E 76.45 / Δ +0.45 · `hpcdb18119/gas | cavity wall | pitched insulated`
- [x] `41229335` · L 76 / E 75.55 / Δ -0.45 · `hpcdb16839/gas | cavity wall | pitched 200`
- [x] `200000571972` · L 64 / E 63.55 / Δ -0.45 · `hpcdb17986/gas | solid brick | pitched 250 | ext1`
- [x] `600039` · L 71 / E 70.55 / Δ -0.45 · `h104/gas | cavity wall | pitched 200`
- [x] `100050635265` · L 68 / E 67.55 / Δ -0.45 · `hpcdb17956/gas | cavity wall | pitched 250 | sec:room heaters`
- [x] `100040685184` · L 59 / E 59.45 / Δ +0.45 · `hpcdb18432/gas | cavity wall | pitched 300 | sec:room heaters`
@ -801,6 +775,7 @@ Statuses: `[ ]` todo · `[x]` resolved ≤0.5 · 🔧 fix landed · ⚠ xfail en
- [x] `10070086972` · L 18 / E 17.59 / Δ -0.41 · `hpcdb710/fuel28+2mains | sandstone as | pitched insulated | RR,ext4,sec:room heaters`
- [x] `100050397944` · L 65 / E 64.59 / Δ -0.41 · `hpcdb17681/gas | cavity wall | pitched 250 | ext1,sec:room heaters`
- [x] `63105357` · L 74 / E 74.41 / Δ +0.41 · `hpcdb17507/gas | cavity wall | pitched 270 | sec:room heaters`
- [x] `217091901` · L 62 / E 61.59 / Δ -0.41 · `hpcdb18658/gas | solid brick | flat no` <- FIXED: RdSAP 10 Table 13 200/280mm solid-brick boundary bug (was 60.82); also fixed this cert's build script (never set wall thickness, inherited a stale value)
- [x] `100090989765` · L 70 / E 70.41 / Δ +0.41 · `hpcdb16408/gas | timber frame | pitched 300 | consv3,ext1,sec:room heaters`
- [x] `30523770` · L 72 / E 71.60 / Δ -0.40 · `hpcdb8191/fuel28 | granite or | pitched 200 | sec:room heaters`
- [x] `200004700463` · L 65 / E 65.40 / Δ +0.40 · `hpcdb18559/gas | sandstone as | pitched 75`
@ -838,6 +813,7 @@ Statuses: `[ ]` todo · `[x]` resolved ≤0.5 · 🔧 fix landed · ⚠ xfail en
- [x] `77069148` · L 71 / E 71.39 / Δ +0.39 · `hpcdb17507/gas | cavity wall | pitched 200`
- [x] `148002976` · L 72 / E 71.61 / Δ -0.39 · `hpcdb16840/gas | cavity wall | pitched insulated | ext1`
- [x] `10096536318` · L 66 / E 65.62 / Δ -0.38 · `h301/coal-anth | cavity wall | (another dwelling`
- [x] `100061164545` · L 72 / E 72.38 / Δ +0.38 · `hpcdb15101/gas | solid brick | pitched 300`
- [x] `100030585620` · L 59 / E 59.38 / Δ +0.38 · `h102/gas | cavity wall | pitched insulated | ext4,sec:room heaters`
- [x] `10008325030` · L 82 / E 81.62 / Δ -0.38 · `h301/coal-anth | system built | (another dwelling`
- [x] `100050869353` · L 75 / E 74.62 / Δ -0.38 · `hpcdb10547/gas | solid brick | pitched 300`
@ -870,6 +846,7 @@ Statuses: `[ ]` todo · `[x]` resolved ≤0.5 · 🔧 fix landed · ⚠ xfail en
- [x] `200033141` · L 76 / E 75.64 / Δ -0.36 · `hpcdb16738/gas | cavity wall | flat insulated`
- [x] `100030357741` · L 72 / E 72.36 / Δ +0.36 · `hpcdb18560/gas | cavity wall | pitched 300 | consv2,ext1`
- [x] `100080707176` · L 72 / E 71.64 / Δ -0.36 · `hpcdb10243/gas | cavity wall | pitched 100`
- [x] `30025401` · L 70 / E 69.64 / Δ -0.36 · `hpcdb18433/gas | cavity wall | pitched 270 | ext2`
- [x] `100062132377` · L 81 / E 80.64 / Δ -0.36 · `h214/elec | cavity wall | (another dwelling`
- [x] `100062132384` · L 81 / E 80.64 / Δ -0.36 · `h214/elec | cavity wall | (another dwelling`
- [x] `100031679582` · L 66 / E 66.36 / Δ +0.36 · `hpcdb10243/gas | cavity wall | pitched insulated`
@ -952,6 +929,7 @@ Statuses: `[ ]` todo · `[x]` resolved ≤0.5 · 🔧 fix landed · ⚠ xfail en
- [x] `10008275334` · L 76 / E 76.31 / Δ +0.31 · `h691/elec | system built | (another dwelling | whw903`
- [x] `100110174472` · L 74 / E 74.31 / Δ +0.31 · `hpcdb8368/gas | solid brick | pitched 175 | ext2,mv5`
- [x] `100071450760` · L 55 / E 54.69 / Δ -0.31 · `h691/elec | cavity wall | (another dwelling | whw903`
- [x] `line255` · L 72 / E 72.31 / Δ +0.31 · `h104/gas | solid brick | pitched 200`
- [x] `207096040` · L 69 / E 69.31 / Δ +0.31 · `hpcdb18219/gas | solid brick | pitched insulated | ext1`
- [x] `200004695006` · L 69 / E 69.31 / Δ +0.31 · `hpcdb10243/gas | sandstone as | pitched insulated`
- [x] `100100800577` · L 64 / E 64.31 / Δ +0.31 · `h301/coal-anth | system built | pitched 200 | whw903`
@ -1037,6 +1015,7 @@ Statuses: `[ ]` todo · `[x]` resolved ≤0.5 · 🔧 fix landed · ⚠ xfail en
- [x] `50011586` · L 69 / E 68.74 / Δ -0.26 · `hpcdb10328/gas | cavity wall | pitched 225 | consv2`
- [x] `100010680786` · L 73 / E 73.26 / Δ +0.26 · `hpcdb18907/gas | granite or | pitched 400+ | ext1`
- [x] `422000127372` · L 79 / E 78.75 / Δ -0.25 · `hpcdb17741/gas | cavity wall | pitched 400+`
- [x] `100050477371` · L 65 / E 64.75 / Δ -0.25 · `hpcdb16406/gas | solid brick | pitched insulated | RR,consv2,ext2,sec:room heaters`
- [x] `200000339841` · L 72 / E 72.25 / Δ +0.25 · `hpcdb18736/gas | cavity wall | (another dwelling`
- [x] `72380835` · L 82 / E 82.25 / Δ +0.25 · `hpcdb17507/gas | cavity wall | pitched 200 | PV,sec:room heaters`
- [x] `38193503` · L 65 / E 65.25 / Δ +0.25 · `hpcdb18907/gas | cavity wall | pitched 100 | ext2,sec:room heaters`
@ -1053,6 +1032,7 @@ Statuses: `[ ]` todo · `[x]` resolved ≤0.5 · 🔧 fix landed · ⚠ xfail en
- [x] `100060721835` · L 68 / E 67.76 / Δ -0.24 · `hpcdb16841/gas | system built | pitched 250`
- [x] `100011764055` · L 72 / E 71.76 / Δ -0.24 · `hpcdb15823/gas | cavity wall | pitched 200 | ext4,sec:room heaters`
- [x] `5067734` · L 67 / E 67.24 / Δ +0.24 · `hpcdb17726/gas | solid brick | (another dwelling`
- [x] `38105600` · L 68 / E 67.76 / Δ -0.24 · `h104/gas | solid brick | pitched unknown | ext2`
- [x] `100021942272` · L 69 / E 69.24 / Δ +0.24 · `hpcdb17501/gas | solid brick | pitched insulated | RR`
- [x] `100050587694` · L 70 / E 70.24 / Δ +0.24 · `hpcdb18516/gas | cavity wall | pitched 270`
- [x] `100062195466` · L 73 / E 72.76 / Δ -0.24 · `h104/gas | cavity wall | (another dwelling`
@ -1095,6 +1075,7 @@ Statuses: `[ ]` todo · `[x]` resolved ≤0.5 · 🔧 fix landed · ⚠ xfail en
- [x] `100050841010` · L 69 / E 69.21 / Δ +0.21 · `hpcdb10546/gas | cavity wall | pitched 100 | ext1`
- [x] `10090481366` · L 77 / E 76.79 / Δ -0.21 · `h691/elec | cavity wall | (another dwelling | whw909`
- [x] `100070308464` · L 65 / E 65.21 / Δ +0.21 · `h104/gas | cavity wall | pitched 250 | PV`
- [x] `100031768368` · L 61 / E 61.21 / Δ +0.21 · `hpcdb18250/gas | solid brick | pitched 100 | consv2,sec:room heaters` <- FIXED: RdSAP 10 Table 13 200/280mm solid-brick boundary bug (was 59.12) — Elmhurst-validated, see test_rdsap_uvalues.py
- [x] `100012547948` · L 75 / E 74.79 / Δ -0.21 · `hpcdb17931/gas | cavity wall | pitched 100`
- [x] `100061316828` · L 69 / E 69.21 / Δ +0.21 · `hpcdb18403/gas | cavity wall | pitched 250 | mv2`
- [x] `83067520` · L 65 / E 64.79 / Δ -0.21 · `hpcdb18119/gas | cavity wall | pitched 200`
@ -1112,6 +1093,7 @@ Statuses: `[ ]` todo · `[x]` resolved ≤0.5 · 🔧 fix landed · ⚠ xfail en
- [x] `100060370575` · L 70 / E 69.80 / Δ -0.20 · `hpcdb17760/gas | cavity wall | (another dwelling`
- [x] `10022972987` · L 11 / E 11.20 / Δ +0.20 · `h691/elec | sandstone as | pitched 200 | ext1,sec:room heaters,whw921`
- [x] `10023219663` · L 78 / E 77.80 / Δ -0.20 · `h301/coal-anth | system built | (another dwelling`
- [x] `100021326422` · L 70 / E 69.80 / Δ -0.20 · `hpcdb17679/gas | solid brick | pitched 125 | ext1` <- non-electric fabric/demand: per-cert lodged-geometry noise (field_bias scan clean, no coherent subgroup)
- [x] `100020603440` · L 74 / E 73.80 / Δ -0.20 · `h104/gas | cavity wall | pitched insulated`
- [x] `45040195` · L 75 / E 75.19 / Δ +0.19 · `hpcdb18250/gas | cavity wall | pitched 100`
- [x] `653958` · L 79 / E 78.81 / Δ -0.19 · `hpcdb10071/gas | cavity wall | pitched 250`
@ -1180,6 +1162,7 @@ Statuses: `[ ]` todo · `[x]` resolved ≤0.5 · 🔧 fix landed · ⚠ xfail en
- [x] `10033267429` · L 57 / E 56.85 / Δ -0.15 · `h691/elec | system built | (another dwelling | whw903`
- [x] `100090372586` · L 71 / E 71.15 / Δ +0.15 · `h102/gas | cavity wall | pitched 300 | PV,consv3`
- [x] `100060587363` · L 62 / E 62.15 / Δ +0.15 · `hpcdb10462/gas | solid brick | pitched 250 | consv2,ext2,sec:room heaters`
- [x] `34080035` · L 77 / E 76.85 / Δ -0.15 · `hpcdb18218/gas | solid brick | (another dwelling`
- [x] `207037318` · L 59 / E 58.85 / Δ -0.15 · `h699/fuel0 | cavity wall | (another dwelling | sec:portable electric,whw903`
- [x] `100051048523` · L 67 / E 67.15 / Δ +0.15 · `hpcdb17507/gas | cavity wall | pitched 250 | ext1,sec:room heaters`
- [x] `551000` · L 72 / E 72.15 / Δ +0.15 · `h104/gas | cavity wall | pitched 150`
@ -1196,6 +1179,7 @@ Statuses: `[ ]` todo · `[x]` resolved ≤0.5 · 🔧 fix landed · ⚠ xfail en
- [x] `100080902546` · L 79 / E 78.85 / Δ -0.15 · `hpcdb17696/gas | solid brick | pitched insulated | RR,ext1`
- [x] `100021286876` · L 66 / E 66.15 / Δ +0.15 · `hpcdb17503/gas | solid brick | pitched insulated`
- [x] `100070056707` · L 72 / E 72.14 / Δ +0.14 · `hpcdb17505/gas | system built | (another dwelling`
- [x] `200000571972` · L 64 / E 63.86 / Δ -0.14 · `hpcdb17986/gas | solid brick | pitched 250 | ext1`
- [x] `72513535` · L 70 / E 70.14 / Δ +0.14 · `h691/elec | system built | (another dwelling | whw903`
- [x] `100080166923` · L 68 / E 67.86 / Δ -0.14 · `hpcdb18826/gas | cavity wall | pitched 75 | consv3,ext1`
- [x] `100023483089` · L 77 / E 76.86 / Δ -0.14 · `h409/elec | system built | (another dwelling | sec:portable electric,whw903`

252
scripts/hyde/build_100031768368.py Normal file
View file

@ -0,0 +1,252 @@
"""Elmhurst build for UPRN 100031768368 (RdSAP-21.0.1, END-TERRACE HOUSE, band C,
SOLID BRICK 280 mm uninsulated, pitched 100 mm loft insulation, SOLID ground
floor uninsulated, mains-gas COMBI (PCDB 18250, Baxi 630 Combi 88.4%) +
gas ROOM-HEATER SECONDARY, single electric shower with WWHRS (no mixer
shower), extract fan lodged (1) + 1 other-heater flue, 10 DG windows across
2 orientations (~13.48 m2 total: East 5.52 m2, West 5.13+2.83 m2 across two
glazing eras), TFA 76. Lodged SAP 61; engine 59.12 (Delta -1.88).
Per-cert Elmhurst validation, continuing the 1-2 SAP-band reconciliation
pass. Uses set_window_groups (3 orientation/glazing groups, not a single
collapsed window — see the 100061275133 finding that a single-orientation
simplification meaningfully understates solar gain) + reset_transient_state
at the end so the shared assessment is left neutral. Run:
DISPLAY=:99 python scripts/hyde/build_100031768368.py <page>
"""
from __future__ import annotations
import sys
from pathlib import Path
import elmhurst_lib as E
DIM = "TabContainer_TabPanelMain_WebUserControlDimensionsMain_"
WALL = ("TabContainer_TabPanelMain_InnerTabContainerMain_"
"TabPanelExternalWallMain_WebUserControlWallMain_")
PWALL = ("TabContainer_TabPanelMain_InnerTabContainerMain_"
"TabPanelPartyWallMain_WebUserControlPartyWallMain_")
ROOF = "TabContainer_TabPanelMain_WebUserControlRoofMain_"
FLOOR = "TabContainer_TabPanelMain_WebUserControlFloorsMain_"
DP = "TabContainer_TabPanelDoorsPanel_"
VP = "TabContainer_TabPanelVentilationPanel_"
APT = "TabContainer_TabPanelAirPressureTest_"
LP = "TabContainer_TabPanelLighting_"
MV = "TabContainer_TabPanelMechVent_"
WH = "TabContainer_TabPanelWaterHeating_"
MH1B = "TabContainer_TabPanelMainHeating1_WebUserControlMainHeating1_"
_SAMPLE_DIR = (Path(__file__).parent.parent.parent
/ "backend/epc_api/json_samples/real_life_examples"
/ "RdSAP-Schema-21.0.1/uprn_100031768368")
def _pick(page, suffix, contains):
val = page.evaluate(
"""(a)=>{const s=document.getElementById(a[0]);if(!s)return null;
for(const o of s.options){if(o.text.toLowerCase().includes(a[1].toLowerCase()))return o.value;}return null;}""",
[f"{E.FP}{suffix}", contains])
if val is not None:
E.set_select(page, suffix, val)
return val
def property_description(page):
E.goto(page, "PropertyDescription", "WebFormPropertyDescription.aspx")
E.set_select(page, "DropDownListPropertyType1", "H House")
_pick(page, "DropDownListPropertyType2", "end")
E.set_text(page, "TextBoxStoreys", "2")
E.set_text(page, "TextBoxHabitableRooms", "4")
E.set_text(page, "TextBoxHeatedHabitableRooms", "4")
print("date ->", _pick(page, "DropDownListDateBuiltMain", "1930-1949"))
E.set_select(page, "DropDownListDateBuiltFirst", "")
E.set_select(page, "DropDownListRoomInRoofMain", "")
E.save_close(page)
def dimensions(page):
E.goto(page, "Dimensions", "WebFormDimensions.aspx")
E.set_text(page, f"{DIM}TextBoxFloorAreaLowestFloor", "37.75")
E.set_text(page, f"{DIM}TextBoxRoomHeightLowestFloor", "2.45")
E.set_text(page, f"{DIM}TextBoxWallPerimeterLowestFloor", "20.1")
E.set_text(page, f"{DIM}TextBoxPartyWallLengthLowestFloor", "5.0")
E.set_text(page, f"{DIM}TextBoxFloorArea1stFloor", "37.75")
E.set_text(page, f"{DIM}TextBoxRoomHeight1stFloor", "2.45")
E.set_text(page, f"{DIM}TextBoxWallPerimeter1stFloor", "20.1")
E.set_text(page, f"{DIM}TextBoxPartyWallLength1stFloor", "5.0")
E.save_close(page)
def walls(page):
E.goto(page, "Walls", "WebFormWalls.aspx")
_pick(page, f"{WALL}DropDownListType", "solid brick")
page.wait_for_timeout(500)
print("insulation ->", _pick(page, f"{WALL}DropDownListInsulation", "as built"))
print("party ->", _pick(page, f"{PWALL}DropDownListPartyWallType", "determine")
or _pick(page, f"{PWALL}DropDownListPartyWallType", "masonry"))
for suf in (f"{WALL}TextBoxThickness", f"{WALL}TextBoxWallThickness"):
if page.locator(f"#{E.FP}{suf}").count():
E.set_text(page, suf, "280"); print("wall thickness set 280 via", suf); break
E.save_close(page)
def roofs(page):
E.goto(page, "Roofs", "WebFormRoofs.aspx")
_pick(page, f"{ROOF}DropDownListType", "access to loft") or \
_pick(page, f"{ROOF}DropDownListType", "loft")
_pick(page, f"{ROOF}DropDownListInsulationAt", "joists")
_pick(page, f"{ROOF}DropDownListThickness", "100")
E.save_close(page)
def floors(page):
E.goto(page, "Floors", "WebFormFloors.aspx")
_pick(page, f"{FLOOR}DropDownListLocation", "ground floor")
page.wait_for_timeout(400)
_pick(page, f"{FLOOR}DropDownListType", "solid")
ins = page.locator(f"#{E.FP}{FLOOR}DropDownListInsulation")
if ins.count():
E.set_select(page, f"{FLOOR}DropDownListInsulation", "A As built")
E.save_close(page)
def openings(page):
E.goto(page, "Openings", "WebFormOpenings.aspx")
E.click_tab(page, "TabContainer_TabPanelWindowsPanel")
page.wait_for_timeout(500)
# 3 orientation/glazing-era groups (not a single collapsed window):
# East 5.52 m2 (double pre-2002), West 5.13 m2 (double pre-2002), West
# 2.83 m2 (double 2002-2022, the one larger newer window index 8).
# The glazing dropdown retains its last-selected value across adds; if
# the next row wants the SAME text, selecting it again fires no 'change'
# event (identical value -> no transition) and the row commits with a
# blank Glazing Type. Force a transition through a different option
# first so every add gets a genuine change event.
for area, orient, glazing in (
(5.5174, "East", "Double pre 2002"),
(5.1346, "West", "Double pre 2002"),
(2.8288, "West", "Double between 2002 and 2021"),
):
E.set_select(page, f"{E._WP}DropDownListExtGlazing", "Secondary glazing") # noqa: SLF001
page.wait_for_timeout(300)
E.add_combined_window(page, area, orient, glazing)
page.wait_for_timeout(500)
guard = 0
while E.window_row_count(page) > 3 and guard < 25:
guard += 1
i = E.window_row_count(page) - 1
if not E._delete_window_at_index(page, i): # noqa: SLF001
break
E.click_tab(page, "TabContainer_TabPanelDoorsPanel")
E.set_text(page, f"{DP}TextBoxDoors", "1")
E.set_text(page, f"{DP}TextBoxDoorsInsulated", "0")
E.set_text(page, f"{DP}TextBoxDraughtProofedDoors", "1") # cert: percent_draughtproofed=100
E.save_close(page)
def ventilation(page):
E.goto(page, "VentilationAndCooling", "WebFormVentilationAndCooling.aspx")
E.click_tab(page, "TabContainer_TabPanelVentilationPanel")
E.set_text(page, f"{VP}TextBoxIntermittentFans", "1") # cert: extract_fans_count=1
E.set_text(page, f"{VP}TextBoxFluesOtherHeater", "1") # cert: other_flues_count=1
cool = page.locator(f"#{E.FP}{VP}CheckBoxFixedSpaceCooling")
if cool.count() and cool.is_checked():
E.commit(page, cool.uncheck)
E.click_tab(page, "TabContainer_TabPanelMechVent")
mv = page.locator(f"#{E.FP}{MV}CheckBoxMechanicalVentilation")
if mv.count() and mv.is_checked():
E.commit(page, mv.uncheck)
E.click_tab(page, "TabContainer_TabPanelAirPressureTest")
E.set_select(page, f"{APT}DropDownListTestMethod", "Not available")
E.click_tab(page, "TabContainer_TabPanelLighting")
E.set_text(page, f"{LP}TextBoxLightsTotal", "13")
E.set_text(page, f"{LP}TextBoxLedLightsTotal", "10")
E.set_text(page, f"{LP}TextBoxCflLightsTotal", "2")
E.save_close(page)
def space_heating(page):
# PCDB exact-boiler entry: cert's main_heating_index_number 18250
# resolves to Baxi 630 Combi, 88.4% winter efficiency.
E.goto(page, "SpaceHeating", "WebFormSpaceHeating.aspx")
page.wait_for_timeout(1000)
E.clear_main_heating_code(page)
desc = E.set_pcdb_boiler(page, 18250)
print("PCDB boiler ->", desc)
E.set_heating_dialog(page, f"{MH1B}ButtonMainHeatingControls",
"^Boilers", "^Standard", "CBE Programmer, room thermostat and TRVs")
print("control:", page.locator(f"#{E.MH1}TextBoxMainHeatingControls").input_value())
# cert lodges secondary_heating_type=605 ("Room heaters, mains gas",
# SAP10 Table 4a eff 0.40) — a genuine secondary system, unlike
# 100061275133's "None". The dialog is a 4-level cascade (fuel ->
# sub-fuel -> heater class -> specific product), not 3 like main
# heating controls. Probed all 12 RGx options by resolved SAP code;
# "RGH Flush fitting live effect gas fire, sealed to chimney" is the
# exact match for code 605.
E.set_select(page, "DropDownListSecondaryHeatingPresent", "Yes")
page.wait_for_timeout(900)
E.set_heating_dialog(page, "ButtonSecondaryHeatingCode",
"^Gas", "Mains gas", "Room Heaters", "RGH")
tb = page.locator(f"#{E.FP}TextBoxSecondaryHeatingCode")
print("secondary code:", tb.input_value() if tb.count() else "?")
E.save_close(page)
def water_heating(page):
E.goto(page, "WaterHeating", "WebFormWaterHeating.aspx")
E.click_tab(page, "TabContainer_TabPanelWaterHeating")
page.wait_for_timeout(400)
E.clear_hot_water_cylinder(page)
E.set_heating_dialog(page, f"{WH}ButtonWaterHeatingCode",
"From Space Heating", "From the primary heating system")
print("water code:", page.locator(f"#{E.FP}{WH}TextBoxWaterHeatingCode").input_value())
E.save_close(page)
def baths_showers(page):
"""cert: number_baths=1, shower_outlets=[electric shower, WWHRS=1],
mixer_shower_count=0 — an instantaneous ELECTRIC shower with WWHRS
fitted, not a mixer shower off the main system."""
E.goto(page, "WaterHeating", "WebFormWaterHeating.aspx")
E.click_tab(page, "TabContainer_TabPanelBathsShowers")
page.wait_for_timeout(400)
print("(manual check needed: set 1 bath, 1 electric shower with WWHRS)")
def download(page):
_SAMPLE_DIR.mkdir(parents=True, exist_ok=True)
E.goto(page, "Recommendations", "WebFormRecommendations.aspx")
page.wait_for_timeout(1500)
with page.expect_navigation(wait_until="networkidle", timeout=40000):
page.click("#ContentBody_buttonActionSummary_Link", timeout=15000)
page.wait_for_timeout(2000)
for btn, fname in (("ContentBody_ContentPlaceHolder1_LinkButtonSummary", "elmhurst_summary.pdf"),
("ContentBody_ContentPlaceHolder1_ButtonDebugInforPdf", "elmhurst_worksheet.pdf")):
try:
with page.expect_download(timeout=60000) as dl:
page.click(f"#{btn}", timeout=15000)
dl.value.save_as(str(_SAMPLE_DIR / fname))
print("saved", fname)
except Exception as e:
print("!! download failed", fname, type(e).__name__, str(e)[:120])
def cleanup(page):
"""Leave the shared assessment neutral for the next build."""
E.reset_transient_state(page)
print("reset transient state (RR/secondary/meter)")
_ORDER = ["property_description", "dimensions", "walls", "roofs", "floors",
"openings", "ventilation", "space_heating", "baths_showers",
"water_heating", "download", "cleanup"]
def main():
if len(sys.argv) < 2 or sys.argv[1] not in _ORDER:
print("usage: build_100031768368.py <" + "|".join(_ORDER) + ">")
return 2
with E.session() as (ctx, page):
globals()[sys.argv[1]](page)
print("done:", sys.argv[1], "->", page.url)
return 0
if __name__ == "__main__":
raise SystemExit(main())

9
scripts/hyde/build_217091901.py
View file

@ -85,6 +85,15 @@ def walls(page):
print("insulation opts:", _options(page, f"{WALL}DropDownListInsulation"))
_pick(page, f"{WALL}DropDownListInsulation", "as built") or \
_pick(page, f"{WALL}DropDownListInsulation", "none")
# cert lodges wall_thickness=280mm measured=Y — this field was never
# set here, so the shared assessment silently carried over whatever
# thickness an earlier build had left (260mm), masking the real
# RdSAP 10 Table 13 200/280mm boundary bug on this cert's exact
# thickness. See domain/sap10_ml/rdsap_uvalues.py
# _u_brick_thin_wall_age_a_to_e's docstring.
for suf in (f"{WALL}TextBoxThickness", f"{WALL}TextBoxWallThickness"):
if page.locator(f"#{E.FP}{suf}").count():
E.set_text(page, suf, "280"); print("wall thickness set 280 via", suf); break
E.save_close(page)

78
tests/domain/sap10_calculator/test_real_cert_sap_accuracy.py
View file

@ -874,22 +874,35 @@ _EXPECTATIONS: Final[tuple[RealCertExpectation, ...]] = (
# TOP-FLOOR FLAT, band A (before 1900), SOLID BRICK 280 mm uninsulated,
# FLAT ROOF no insulation (As Built), floor over ANOTHER DWELLING below
# (zero loss), mains-gas COMBI, SINGLE glazing (glazed_type 5), TFA 63.
# Lodged 62 / engine 61 (60.82). Built in accredited Elmhurst RdSAP10
# (evidence saved: elmhurst_summary.pdf / elmhurst_worksheet.pdf): EVERY
# heat-loss element matches the engine EXACTLY — walls (solid U 1.70,
# 53.18 W/K), flat roof (uninsulated U 2.30, 145.57 W/K), floor (0),
# party (0), and — with the faithful SINGLE glazing entered — WINDOWS
# (8.62 m² × effective U 4.0268 = 34.7114 W/K, identical to the engine).
# This confirms the mapper''s glazed_type 5 → single (raw U 4.8) is
# spec-correct (epc_codes.csv: glazed_type 5 = single glazing), NOT the
# double it superficially resembles. The −1.18 vs lodged is a cost-side
# methodology residual (PE +8.7 kWh/m², CO2/PE-driven), not a fabric bug.
# PINNED to the observed engine 61.
# Lodged 62 / engine 62 (61.59, was 60.82 before the §5.7 Table 13
# 280mm-boundary fix below) — now an EXACT match. Built in accredited
# Elmhurst RdSAP10 (evidence saved: elmhurst_summary.pdf /
# elmhurst_worksheet.pdf): flat roof (uninsulated U 2.30, 145.57 W/K),
# floor (0), party (0), and — with the faithful SINGLE glazing entered —
# WINDOWS (8.62 m² × effective U 4.0268 = 34.7114 W/K, identical to the
# engine) all match EXACTLY. This confirms the mapper''s glazed_type 5
# → single (raw U 4.8) is spec-correct (epc_codes.csv: glazed_type 5 =
# single glazing), NOT the double it superficially resembles.
#
# Wall U originally logged as "1.70, matches engine exactly" — but that
# was a FALSE match: this cert's build script (build_217091901.py)
# never actually set a wall thickness field, so the shared assessment
# silently carried over a stale 260mm from an earlier build instead of
# this cert's real 280mm (measured=Y). Rebuilt with the corrected
# 280mm entry: Elmhurst's own worksheet (29a) NOW gives wall U=1.40,
# not 1.70 — see the sibling fix on cert 100061275133/100031768368's
# investigation, which found the SAME 280mm-exactly boundary bug in
# `_u_brick_thin_wall_age_a_to_e` (RdSAP 10 Table 13's 200/280mm rows
# share an unlabelled edge; Elmhurst puts it in the upper "280-420mm
# -> 1.4" row, our `<= 280` check put it in the lower row). Fixed;
# both this cert (band A) and 100031768368 (band C) now agree on
# U=1.40 at exactly 280mm — two independent Elmhurst confirmations.
# PINNED to the observed exact match (vs lodged, the correct target).
RealCertExpectation(
schema="RdSAP-Schema-21.0.1",
sample="uprn_217091901",
cert_num="uprn-217091901",
sap_score=61,
sap_score=62,
),
# UPRN 100061275133 (corpus; no cert number lodged). RdSAP-21.0.1 native —
# 2-storey SEMI-DETACHED HOUSE, band B, SOLID BRICK 400 mm with EXTERNAL
@ -1034,6 +1047,47 @@ _EXPECTATIONS: Final[tuple[RealCertExpectation, ...]] = (
cert_num="uprn-10091578598",
sap_score=79,
),
# UPRN 100031768368 (corpus; no cert number lodged). RdSAP-21.0.1 native —
# END-TERRACE HOUSE, band C (1930-1949), SOLID BRICK 280 mm uninsulated
# (wall_thickness_measured=Y), pitched 100 mm loft insulation, SOLID
# ground floor uninsulated, mains-gas COMBI (PCDB 18250, Baxi 630 Combi
# 88.4%) + gas ROOM-HEATER SECONDARY (code 605), electric shower with
# WWHRS (no mixer shower — mixer_shower_count genuinely 0, corpus-
# checked: no systematic bias on the 170-cert "bath+no shower data"
# cohort), 10 windows across 2 real orientations (East 5.52 m²/West
# 8.0 m² split further by glazing era), TFA 75.5. Lodged 61 / engine
# 61 (61.21, was 59.12 before the fix below) — now within 0.5.
#
# Built in accredited Elmhurst RdSAP10 (evidence saved:
# elmhurst_summary.pdf / elmhurst_worksheet.pdf): dwelling volume
# (194.4125 m³), ventilation ACH (21)=0.7229, ground floor W/K
# (27.5575), and doors W/K (5.55) all matched EXACTLY on the first
# build. The wall did not: engine U=1.70 (149.92 W/K) vs Elmhurst
# U=1.40 (123.47 W/K) despite identical inputs (construction, "As
# Built" insulation, 280mm thickness, age band all confirmed matching
# via the input-summary crosswalk).
#
# Root cause: RdSAP 10 §5.7 Table 13 (spec PDF p.41) gives four
# thickness bands for an uninsulated solid-brick wall — "up to 200mm"
# -> 2.5, "200 to 280mm" -> 1.7, "280 to 420mm" -> 1.4, "more than
# 420mm" -> 1.1 — and this cert's wall sits EXACTLY on the shared
# 200/280 edge, which the table text doesn't disambiguate.
# `_u_brick_thin_wall_age_a_to_e`'s `<= 280` check put the edge in the
# lower (1.7) row; Elmhurst puts it in the upper (1.4) row. Verified
# independently on a SECOND cert (217091901, band A, also exactly
# 280mm) after discovering and fixing its build script's own bug
# (never actually set a wall thickness, silently inheriting a stale
# 260mm from an earlier build) — rebuilt with the corrected 280mm
# entry, Elmhurst's worksheet gives the SAME U=1.40. Fixed in
# `domain/sap10_ml/rdsap_uvalues.py`; corpus gauge 77.8%->78.6%
# within-0.5, MAE 0.636->0.627 (14 corpus certs lodge exactly 280mm
# solid brick). PINNED to the observed match vs lodged.
RealCertExpectation(
schema="RdSAP-Schema-21.0.1",
sample="uprn_100031768368",
cert_num="uprn-100031768368",
sap_score=61,
),
)

18
tests/infrastructure/epc_client/test_sap_accuracy_corpus.py
View file

@ -239,7 +239,9 @@ _CORPUS = Path(
# 2.97, CO2 0.074 -> 0.072.
# 77.7% -> 77.8% via the §5 (12) suspended-timber floor-infiltration
# fallback (see the `_MAX_SAP_MAE` note below for the mechanism).
_MIN_WITHIN_HALF_SAP = 0.778
# 77.8% -> 78.6% via the RdSAP 10 §5.7 Table 13 200/280mm solid-brick-wall
# boundary fix (see the `_MAX_SAP_MAE` note below).
_MIN_WITHIN_HALF_SAP = 0.786
# 0.793 -> 0.789 via the §12 Unknown-meter + dual-electric-immersion off-peak
# trigger (RdSAP 10 PDF p.62): Apartment 241 (main 691 + 903 dual immersion)
# -5.38 -> -1.05. Worksheet-validated on "simulated case 48" (Elmhurst SAP 57,
@ -334,7 +336,19 @@ _MIN_WITHIN_HALF_SAP = 0.778
# description for the U-value calc — the infiltration rule did not).
# Cert 100061275133 (Elmhurst-validated build): SAP 77.24 -> 76.33, now
# an EXACT match to lodged (76). Unit-pinned in test_cert_to_inputs.
_MAX_SAP_MAE = 0.637
# 77.8% -> 78.6% (MAE 0.636 -> 0.627) via the RdSAP 10 §5.7 Table 13
# 200/280mm solid-brick-wall boundary fix: the spec table's "200 to
# 280mm -> 1.7" / "280 to 420mm -> 1.4" rows share an unlabelled edge at
# exactly 280mm; `_u_brick_thin_wall_age_a_to_e`'s `<= 280` check put it
# in the lower row. Elmhurst-validated on TWO certs at exactly 280mm in
# different age bands (100031768368 band C, 217091901 band A after
# fixing that cert's build script — it never set a wall thickness field
# and had silently inherited a stale value from an earlier build) — both
# independently confirm the shared edge belongs to the upper (1.4) row.
# 100031768368 SAP 59.12 -> 61.21 (lodged 61, now within 0.5); 217091901
# 60.82 -> 61.59 (lodged 62, now an exact match). 14 corpus certs lodge
# exactly 280mm solid brick. Unit-pinned in test_rdsap_uvalues.
_MAX_SAP_MAE = 0.628
_MAX_CO2_MAE_TONNES = 0.072 # t CO2 / yr vs co2_emissions_current
_MAX_PE_PER_M2_MAE = 3.0 # kWh / m2 / yr vs energy_consumption_current