Model/tests/datatypes
Khalim Conn-Kowlessar 23245a085c test(elmhurst): party-ceiling BP window is vertical, not a rooflight 🟥
_is_elmhurst_roof_window mis-routes a vertical window (Location "External
wall") to sap_roof_windows when the building part's roof is a PARTY ceiling
(A "Another dwelling above" / NR "Non-residential space above"). A party
ceiling has no external roof, so it cannot host a rooflight.

Surfaced by simulated case 53 (cert 000565 re-keyed as a mid-floor electric-
storage flat, roof "A Another dwelling above"): its External-wall window
(U 2.00) routed to sap_roof_windows -> window area not deducted from the wall
(wall over-counted ~7 W/K) + priced as a roof window -> our SAP 74.0 vs
Elmhurst worksheet 75. Elmhurst lodges it Type "Window", Location "External
wall".

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-27 07:06:04 +00:00
..
epc test(elmhurst): party-ceiling BP window is vertical, not a rooflight 🟥 2026-06-27 07:06:04 +00:00
__init__.py feat(modelling): Epc.sap_lower_bound() — band → minimum SAP (#1160) 2026-06-03 12:50:40 +00:00