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1f266d0282
On the gov-EPC API path a window's metal frame was unrepresentable: both transmission tables were frameless (U_pvc, g, 0.70), so a cert lodging a metal frame (pvc_frame:"false", RdSAP input 6-5) was billed at the PVC/wooden U and frame factor 0.70 — over-rating metal-framed dwellings. Add the RdSAP 10 Table 24 metal U-column (PDF p.50-51; mirrors u_window's metal values) and a pvc_frame dimension to _api_glazing_transmission: an explicit "false" routes the window to the metal U + SAP 10.2 Table 6c frame factor 0.8; "true"/None/other keep the PVC column + 0.70, so no PVC cert regresses. Secondary glazing keeps its frame-independent U (only FF changes). Wired into _api_sap_window and _api_sap_roof_window (both full-schema, lodge pvc_frame); the reduced-field path has no pvc_frame and is unchanged. Spec: RdSAP 10 Table 24 metal column, SAP 10.2 Table 6c, RdSAP input 6-5 (p.80). Corpus: within-0.5 80.6% -> 81.0%, MAE 0.578 -> 0.571. Cert 21067296 68.60 -> 66.96 (toward lodged 67). Closes #1667. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> |
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| .. | ||
| domain | ||
| loaders | ||
| schema | ||
| search | ||
| surveys | ||
| __init__.py | ||
| construction_age_band.py | ||
| efficiency.py | ||
| floor.py | ||
| fuel.py | ||
| heating_controls.py | ||
| hotwater.py | ||
| main_heating.py | ||
| property_type_built_form.py | ||
| roof.py | ||
| walls.py | ||
| windows.py | ||