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The main pitched/flat roof U-value was derived from the JOINED text of every roofs[] entry. A room-in-roof carries its own §3.9/§3.10 shell area + U-value cascade (Table 17 / Table 18 col 4), so a multi-roof cert lodged "Pitched, insulated (assumed) | Roof room(s), no insulation (assumed)" leaked the RR's "no insulation" marker into the main roof's u_roof → U=2.30 applied to the WHOLE main roof, ~3x over-stating its heat loss. This is the 4700-family regular-roof-U leak. `_joined_main_roof_descriptions` drops "Roof room(s)" entries before the main-roof u_roof, falling back to the unfiltered join only for pure-RR dwellings (every entry an RR) to preserve their prior behaviour. The RR shell U is unaffected (computed separately) — golden 6035 stays green. RR-leak cluster (18 certs, RR "no insulation" + a non-RR primary roof): mean |err| 6.14 → 4.85, within-1.0 0 → 8, within-0.5 0 → 3. Eval headline 44.8% → 44.9%, mean |err| 1.851 → 1.824, mean signed -0.152 → -0.081. Two certs overshoot (other residuals the leak was masking); the spec rule is applied uniformly. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> |
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| utilities | ||
| __init__.py | ||
| conftest.py | ||
| test_lambda_packaging.py | ||