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System-built (precast/no-fines concrete) takes both solid-wall Options like solid brick (ADR-0019), keyed on `wall_construction == 6` (WALL_SYSTEM_BUILT, Elmhurst `SY`). A basement-suitability guard (`main_wall_is_basement`) is added since a below-ground basement wall is never EWI/IWI-suitable. This is currently inert: `B Basement wall` also maps to 6 (mapper.py:2100) and `main_wall_is_basement` is derived as `wall_construction == 6`, so every code-6 wall reads as basement and is guarded out — the live cohort is unchanged. The system-built EWI/IWI cascade pin is committed as a strict-xfail tripwire that flips green the moment the calculator disambiguates system-built from basement (MAIN wall_construction==6 with main_wall_is_basement False). `wall_construction == 8` is Park home, not system-built — not keyed. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> |
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| .. | ||
| addresses | ||
| billing | ||
| fuel_rates | ||
| modelling | ||
| property | ||
| property_baseline | ||
| sap10_calculator | ||
| tasks | ||
| __init__.py | ||
| test_building_geometry.py | ||
| test_postcode.py | ||