Khalim Conn-Kowlessar aa6645e3f1 Slice 97: API glazing_type=2 → RdSAP 10 Table 24 (DG 2002-2021) ... Cert 0330 API path was at Δ +1.68 SAP after Slice 96 because all 11 windows (`sap_windows[*].glazing_type = 2`) fell through `_API_GLAZING_TYPE_TO_TRANSMISSION` (which only covered codes 3 + 13) to the cascade's `u_window` default (~U=2.5). The cert's actual glazing is "Double, England/Wales 2002 or later (before 2022)" per RdSAP 10 Table 24 page 79 → U=2.0, g=0.72 (PVC/wooden frame). RdSAP 10 Table 24 verbatim: Glazing Installed Gap U-value g Double or England/Wales: 2002 or later 2.0 0.72 triple Scotland: 2003 or later any glazed N. Ireland: 2006 or later The cascade's curtain-transform path (`U_eff = 1/(1/U + 0.04)`) takes U_raw=2.0 to U_eff=1.8519 — matching the worksheet's per- window (27) U value column to 4 d.p. across all 11 windows. Effect on cert 0330 API path: - Windows HLC 36.4545 → 29.7407 (= worksheet exact) - (37) total fabric heat loss 244.48 → 237.77 (≈ worksheet 237.75) - SAP Δ +1.68 → +2.12 (windows fix unmasks the standalone HW gap, which the next slice closes) Re-pinned residuals (5 affected golden certs): - 0240: PE +17.85 → +15.69; CO2 +1.01 → +0.90; SAP unchanged at -15 - 0300: PE +7.76 → +7.52; CO2 -0.25 → -0.27; SAP unchanged at +0 - 0390-2954: PE -26.46 → -28.68; CO2 -2.56 → -2.76; SAP unchanged - 7536: SAP +0 → +1; PE -3.45 → -6.51; CO2 -0.09 → -0.17 - 8135: PE -2.41 → -5.31; CO2 -0.02 → -0.07; SAP unchanged at +0 The PE/CO2 widening on some certs (vs lodged GOV.UK values) reflects the cascade now using the spec table U=2.0 where those certs may have lodged a higher project-specific U — the spec-table is the right floor for the API path; per-window measured U overrides would belong on the cert's window_transmission_details.u_value field, which the API JSON doesn't surface uniformly. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>		2026-05-26 18:22:04 +00:00
..
domain	Slice 97: API glazing_type=2 → RdSAP 10 Table 24 (DG 2002-2021)	2026-05-26 18:22:04 +00:00
loaders	demo generated for use in address2uprn	2026-05-08 14:48:15 +00:00
schema	Slice 44: flat_roof_insulation_thickness mapper fix — surface lodged value on SapBuildingPart	2026-05-24 15:28:10 +00:00
search	bolstering testing	2026-04-28 13:46:09 +00:00
surveys	Slice 53: Summary_000487 chain pins SAP at 1e-4 — last cohort cert closed	2026-05-24 21:42:42 +00:00
__init__.py	testing out rebaselining	2026-02-12 22:25:03 +00:00
construction_age_band.py	testing out rebaselining	2026-02-12 22:25:03 +00:00
efficiency.py	beginning to assembly the parity class	2026-02-04 18:34:59 +00:00
floor.py	preparing partiy class	2026-02-05 08:54:27 +00:00
fuel.py	beginning to assembly the parity class	2026-02-04 18:34:59 +00:00
heating_controls.py	beginning to assembly the parity class	2026-02-04 18:34:59 +00:00
hotwater.py	beginning to assembly the parity class	2026-02-04 18:34:59 +00:00
main_heating.py	beginning to assembly the parity class	2026-02-04 18:34:59 +00:00
property_type_built_form.py	beginning to assembly the parity class	2026-02-04 18:34:59 +00:00
roof.py	beginning to assembly the parity class	2026-02-04 18:34:59 +00:00
walls.py	beginning to assembly the parity class	2026-02-04 18:34:59 +00:00
windows.py	testing out rebaselining	2026-02-12 22:25:03 +00:00