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Khalim Conn-Kowlessar 9bb57cde57 Spec the room-in-roof persistence gap for the FE migration 📋 
`SapRoomInRoof.detailed_surfaces` is read by the SAP calculator
(heat_transmission.py:590, :690-696, :1311-1470) but has no Postgres column, so
the per-surface geometry is silently discarded on save. Without it the cascade
abandons the RdSAP 10 §3.10 "Detailed" route — each surface at its own Table 17 /
Table 4 U-value — and bills the whole notional roof shell at the Table 18
column (4) age-band default, typically 2.30 W/m2K for pre-1976 stock.

Measured on the committed 1000-cert RdSAP-21.0.1 corpus: 108 certs (10.8%) lodge
RIR geometry across 118 building parts; 107 of 108 score differently when it is
dropped; 15 change EPC band; worst case -15.21 SAP (uprn 10012119141, top-floor
maisonette, band E -> F). Larger in both population and magnitude than the
rafter_insulation_thickness gap that opened #1656.

Doc only — the Drizzle tables are owned by Hestia-Homes/assessment-model and the
model-side wiring follows once they exist.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-07-21 22:31:06 +00:00
..
adr Record below-regs loft eligibility as ADR-0063 2026-07-10 15:59:51 +00:00
backlog move spreadsheet population logic to domain 2026-06-09 14:43:24 +00:00
grill-sessions scripts? 2026-06-11 07:07:27 +00:00
migrations Spec the room-in-roof persistence gap for the FE migration 📋 2026-07-21 22:31:06 +00:00
baseline-downgrade-followups.md docs: record predicted-property display fixes (item 4) 🟪 2026-06-26 10:54:53 +00:00
HANDOVER_API_ACCURACY_S2.md docs: session-2 API-accuracy handover (fabric+tariff fixes, worksheet path) 2026-06-06 19:13:21 +00:00
HANDOVER_API_FETCH_AND_REPORT.md docs(modelling): handover — EPC API fetch + property inspection report 2026-06-04 10:46:31 +00:00
HANDOVER_API_PROFILING.md docs: session-9 close-out + session-10 handover (summary-report-based audit) 2026-06-09 14:54:08 +00:00
HANDOVER_ARA_NEXT.md docs: correct SAP calculator path in CONTEXT (domain/sap → domain/sap10_calculator) 2026-06-04 15:40:26 +00:00
HANDOVER_EPC_PREDICTION.md docs(epc-prediction): handover for the accuracy backlog + geo work 2026-06-15 15:12:00 +00:00
HANDOVER_EPC_PREDICTION_WIRING.md feat(epc-prediction): thread prediction injection points through the composition root 2026-06-16 13:53:54 +00:00
HANDOVER_MODELLING.md docs(modelling): next-phase handover — depth + scale e2e + grilling prompt 2026-06-03 23:09:08 +00:00
HANDOVER_NEXT_PHASE_PROMPT.md docs(modelling): next-phase handover — depth + scale e2e + grilling prompt 2026-06-03 23:09:08 +00:00
HANDOVER_PASHUB_838_PROBLEM_PROPERTIES.md Add local modelling runner + portfolio-838 problem-properties handover 2026-07-14 21:24:37 +00:00
HANDOVER_PASHUB_EXTRACTOR_ACCURACY.md Add extractor-accuracy campaign handover (state, recipe, remaining targets) 2026-07-14 22:43:24 +00:00
HANDOVER_REAL_LIFE_CERT_ACCURACY.md docs: handoff for expanding the real-life cert SAP-accuracy corpus 2026-06-15 15:28:40 +00:00
HANDOVER_SUMMARY_AUDIT.md docs: session-9 close-out + session-10 handover (summary-report-based audit) 2026-06-09 14:54:08 +00:00
MIGRATION_NOTE_predicted_epc_source.md feat(epc-prediction): slice-5c predicted-EPC persistence slot 2026-06-16 03:50:19 +00:00
PR_NOTE_system_built_basement_1177.md docs: PR note for #1177 — system_build property vs field merge collision 2026-06-04 19:51:29 +00:00