Model/datatypes/epc
Khalim Conn-Kowlessar 7cfd54129b fix(mapper): read the dropped rafter_insulation_thickness API field
Roofs lodged insulated at rafters carry their thickness in a DEDICATED
gov-EPC API field, `rafter_insulation_thickness` (e.g. "225mm"), while
`roof_insulation_thickness` stays None (rafters aren't loft joists). That
field was undeclared on the 21.0.x schemas, so `from_dict` silently
dropped it — the rafter certs only *looked* redacted (roof EER 2-4 =
insulated, yet no thickness), and the cascade fell to the Table 18 col (2)
unknown default (2.30), badly under-rating them.

- declare `rafter_insulation_thickness` on RdSapSchema21_0_0/21_0_1 +
  EpcPropertyData.SapBuildingPart (mirrors the existing
  sloping_ceiling_/flat_roof_insulation_thickness dropped-field handling).
- thread it through `from_rdsap_schema_21_0_0/21_0_1` (older schemas get
  None via getattr).
- `heat_transmission` prefers `rafter_insulation_thickness` over
  `roof_insulation_thickness` when the part is at-rafters, so the measured
  RdSAP 10 §5.11.2 Table 16 column (2) row applies (225 mm → 0.25).

Completes the rafters roof fix: with the real thickness read, the rafter
certs are recovered rather than over-stated — cert 3100-8675-0922-8628
(band E, rafters 225mm) +8.93 → +0.43 SAP. Corpus within-0.5 67.0%
(MAE 1.025) and /tmp 71.2% (MAE 0.889) — both NET ABOVE the pre-rafters
baseline (66.9% / 70.6%). Worksheet harness 47/47; regression = only the
3 pre-existing fails; pyright net-zero.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-16 05:04:39 +00:00
..
domain fix(mapper): read the dropped rafter_insulation_thickness API field 2026-06-16 05:04:39 +00:00
loaders demo generated for use in address2uprn 2026-05-08 14:48:15 +00:00
schema fix(mapper): read the dropped rafter_insulation_thickness API field 2026-06-16 05:04:39 +00:00
search bolstering testing 2026-04-28 13:46:09 +00:00
surveys fix(mapper): map Elmhurst "Value known" cylinder to measured volume (code 6) 2026-06-15 23:57:25 +00:00
__init__.py testing out rebaselining 2026-02-12 22:25:03 +00:00
construction_age_band.py testing out rebaselining 2026-02-12 22:25:03 +00:00
efficiency.py beginning to assembly the parity class 2026-02-04 18:34:59 +00:00
floor.py preparing partiy class 2026-02-05 08:54:27 +00:00
fuel.py beginning to assembly the parity class 2026-02-04 18:34:59 +00:00
heating_controls.py beginning to assembly the parity class 2026-02-04 18:34:59 +00:00
hotwater.py beginning to assembly the parity class 2026-02-04 18:34:59 +00:00
main_heating.py beginning to assembly the parity class 2026-02-04 18:34:59 +00:00
property_type_built_form.py beginning to assembly the parity class 2026-02-04 18:34:59 +00:00
roof.py beginning to assembly the parity class 2026-02-04 18:34:59 +00:00
walls.py beginning to assembly the parity class 2026-02-04 18:34:59 +00:00
windows.py testing out rebaselining 2026-02-12 22:25:03 +00:00