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2d15951bc1
Closes the three-layer gap that left the Summary mapper producing
`wall_insulation_thickness=None` even though Summary §7.0 lodges
"Insulation Thickness" / "100 mm" explicitly on cert 0380. Three
small co-ordinated edits ship the field end-to-end:
1. `datatypes/epc/surveys/elmhurst_site_notes.py` — add
`WallDetails.insulation_thickness_mm: Optional[int] = None`,
mirroring the existing `RoofDetails.insulation_thickness_mm`.
2. `backend/documents_parser/elmhurst_extractor.py` — extend
`_wall_details_from_lines` to read the `_local_val(lines,
"Insulation Thickness")` label inside the §7 Walls block (the
"Insulation Thickness" label is local-scoped per block, so it
does not collide with §8 Roofs / §9 Floors).
3. `datatypes/epc/domain/mapper.py` — surface
`wall_insulation_thickness=f"{walls.insulation_thickness_mm}mm"`
on `SapBuildingPart`. Mirrors the API mapper's string-with-unit
shape (`'100mm'`) so cert-to-cert parity tests (Summary EPC ≡
API EPC) compare equal; the cascade's `_parse_thickness_mm`
accepts either form.
Forcing function (Slice S0380.1): cert 0380 Summary cascade SAP
moves from 86.8671 (Δ -1.6433 — i.e. after Slice S0380.3 only) to
88.1981 (Δ -0.3123) — closes ~81% of the remaining gap. Critically,
`walls_w_per_k` now hits API parity exactly (Summary 11.6150 ≡ API
11.6150) — the composite filled-cavity-plus-external U-value calc
is now keyed off the lodged 100 mm thickness rather than its
internal default.
Residual -0.31 SAP vs worksheet is comparable to the documented HP
cohort's API-path residual of +0.06 (cert 0380 API path closes at
+0.0594). Summary path is now within ±0.37 of API path. Remaining
diffs to investigate (per the next-step diagnostic): hot-water
cascade (Summary 1002.74 kWh vs API 878.05 kWh, +124.69 kWh), HLC
parameters (heat_transfer_coefficient still differs slightly through
secondary terms), and possibly secondary-heating routing. The
worksheet vs API +0.06 residual is the documented Appendix N3.6
PSR-interpolation precision floor and out of scope for Summary-path
closure.
Added focused unit test
`test_summary_0380_surfaces_wall_insulation_thickness_100mm` that
pins the mapper boundary directly (Summary "100 mm" line pair →
EPC `wall_insulation_thickness="100mm"`), so future debuggers can
localise regressions in the new extractor / field / mapper path
before walking the full chain.
Pyright net-zero across all four edited files:
datatypes/epc/domain/mapper.py: 32 (baseline)
datatypes/epc/surveys/elmhurst_site_notes.py: 0
backend/documents_parser/elmhurst_extractor.py: 0
backend/documents_parser/tests/test_summary_pdf_mapper_chain.py: 0
Regression suite: 672 pass + 11 fail (vs handover baseline 669 + 10
— net +3 pass for the three Slices S0380.2-4 GREEN unit tests; the
+1 fail vs baseline is still the S0380.1 chain test which this slice
moves from Δ -1.6433 to Δ -0.3123 but does not yet fully close).
Spec refs:
- SAP 10.2 §3.7 / Appendix S Table S5 (composite filled-cavity-plus-
external U-value calc — series-resistance form keyed off lodged
insulation thickness)
- Cert 0380 Summary PDF §7.0 lines 121-122 ("Insulation Thickness"
/ "100 mm" — the missing extractor read this slice adds)
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
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|---|---|---|
| .. | ||
| handler | ||
| tests | ||
| __init__.py | ||
| db_writer.py | ||
| elmhurst_extractor.py | ||
| extractor.py | ||
| local_runner.py | ||
| parser.py | ||
| pdf.py | ||