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0851b48807
_is_elmhurst_roof_window routed a vertical window (Location "External wall") to sap_roof_windows whenever its building part's roof type was a party ceiling (A "Another dwelling above" / NR "Non-residential space above"). That is right for an EXTENSION (cert 000565 Ext2/Ext4 score on worksheet (27a)) but wrong for the MAIN BP: a Main "A"/"NR" roof is the dwelling's own party ceiling — no external roof — so its windows are vertical. Gate the BP-roof-type rooflight rule to non-Main building parts. On a mid- floor flat (case 53 / cert 000565 re-keyed) the Main External-wall window is now vertical: its area deducts from the wall (was over-counted ~7 W/K) and it prices as a window. Summary-path SAP 74.0 -> 75.17, matching Elmhurst's accredited worksheet (75; space-heat 3408.6 vs 3408.58) — confirming the calculator is correct; the gap was the misclassification. 000565's extension rooflights, the "Roof of Room" branch, and the U>3.0 room-in-roof backstop are unchanged. gov-API path unaffected (it routes roof windows via window_wall_type==4). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> |
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| __init__.py | ||
| datatypes.py | ||
| enums.py | ||