junte/Model
1
0
Fork 0
mirror of https://github.com/Hestia-Homes/Model.git synced 2026-07-19 08:53:17 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 1
Model/backend/epc_api/json_samples/real_life_examples
History
Jun-te Kim 0e784cbb1c test(accuracy): ratchet SAP MAE 0.658 -> 0.647 via wall added-insulation unknown-thickness default 
A SOLID-BRICK or STONE wall lodging External/Internal insulation
(wall_insulation_type 1/3) but no measured insulation thickness (gov-API
"NI" -> None) was billed at its UNINSULATED §5.6/Table-6 U-value: the §5.8
added-insulation R-value adjustment gates on `insulation_thickness_mm > 0`,
so an unknown thickness fell straight through to the raw solid-wall U
(~1.4-1.7). This over-counted wall heat loss and under-rated the dwelling.

RdSAP 10 §5.4 (PDF p.32): "the U-value with additional insulation is based
on the thickness of insulation of mineral wool type (assume 100 mm if
thickness is unknown)". Apply that 100 mm default so the §5.8 Table-14
R-value fires. Scoped to solid brick / stone (the only constructions with
a §5.8 R-value path in u_wall) so cavity (composite path) and timber /
system-built walls are untouched.

Localised by deep-diving corpus cert 200004296092 (end-terrace, solid
brick 360 mm "with external insulation", NI): walls 101.7 W/K (U~1.40,
HLP 3.46 = absurd for an insulated wall) -> ~0.29; PE +59.6 -> ~0; engine
64.35 (Δ -6.65) -> 71.74 = lodged 71. ~8 solid-brick/stone corpus certs
carry this NI-thickness-with-insulation shape.

Gauge: within-0.5 held at 77.0%, SAP MAE 0.658 -> 0.647, CO2 0.074 ->
0.073, PE 3.2 -> 3.1 (floor ratcheted). Unit-pinned in test_rdsap_uvalues
(brick 360 mm external NI -> 0.29) + RealCertExpectation 200004296092 = 72.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-02 20:24:56 +00:00
..
RdSAP-Schema-17.0 sap score and elmhirst mapper optimsaiation 2026-06-20 07:25:42 +00:00
RdSAP-Schema-17.1 updated sap scaema to take in inputs 2026-06-23 10:22:40 +00:00
RdSAP-Schema-18.0 Add UPRN 100020942571 (8 Booth Close) to the SAP accuracy corpus 2026-07-02 11:31:28 +00:00
RdSAP-Schema-19.0 Add SAP-18.0.0 + SAP-16.0 schema coverage; autonomous-run triage findings 2026-06-16 20:04:43 +00:00
RdSAP-Schema-20.0.0 test(accuracy): pin RdSAP-20.0.0 PV semi uprn_22086693 (PV-list fix corpus) 2026-06-23 16:13:34 +00:00
RdSAP-Schema-21.0.1 test(accuracy): ratchet SAP MAE 0.658 -> 0.647 via wall added-insulation unknown-thickness default 2026-07-02 20:24:56 +00:00
SAP-Schema-16.0 test(accuracy): pin SAP-16.0 storage-flat uprn_10070004512 (built_form fix corpus) 2026-06-23 15:35:06 +00:00
SAP-Schema-16.1/uprn_100021943298 more examples 2026-06-19 09:51:49 +00:00
SAP-Schema-16.2 sap score and elmhirst mapper optimsaiation 2026-06-20 07:25:42 +00:00
SAP-Schema-16.3 data types 2026-06-23 12:42:53 +00:00
SAP-Schema-17.0 neighbouring properties added 2026-06-22 14:38:00 +00:00
SAP-Schema-17.1 sap score and elmhirst mapper optimsaiation 2026-06-20 07:25:42 +00:00
SAP-Schema-18.0.0 Add SAP-18.0.0 + SAP-16.0 schema coverage; autonomous-run triage findings 2026-06-16 20:04:43 +00:00
SAP-Schema-19.1.0/uprn_10096028301 more examples 2026-06-19 09:51:49 +00:00