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Khalim Conn-Kowlessar 49fb6c1b8e fix(glazing): remap divergent RdSAP-21 glazing codes 4/5 to cascade g slots 
The g-value tables (_G_PERPENDICULAR_BY_GLAZING_TYPE solar g⊥,
_G_LIGHT_BY_GLAZING_CODE daylight g_L) are keyed on the SAP 10.2 Table 6b
cascade enum, but _api_cascade_glazing_type only translated code 1. Codes 4
and 5 sit in the 1-6 range where RdSAP-21 and the cascade enum disagree
(RdSAP-21 4=secondary/5=single vs cascade 4=double-low-E/5=secondary), so an
API single-glazed window read the cascade-5 secondary g (0.76/0.80) instead
of single (0.85/0.90), and a secondary window read cascade-4 double-low-E
(0.63). Added the {4:5, 5:1} remap entries the existing design comment
already anticipated ("only divergent codes need a remap").

Correctness fix: solar/daylight gains are second-order, so eval is unchanged
(56.66% within-0.5, 0 certs flip) — the dominant single-glazing error was the
U-value, closed in a0432977's Table 24 transmission map. This closes the
keying inconsistency to prevent future drift. 4 AAA tests, goldens + gate
green, pyright net-zero (38=38).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-09 10:42:16 +00:00
..
domain fix(glazing): remap divergent RdSAP-21 glazing codes 4/5 to cascade g slots 2026-06-09 10:42:16 +00:00
loaders demo generated for use in address2uprn 2026-05-08 14:48:15 +00:00
schema fix(wall-U): apply RdSAP Table 4 "Sheltered" R=0.5 to alternative walls 2026-06-08 22:49:42 +00:00
search bolstering testing 2026-04-28 13:46:09 +00:00
surveys S0380.234: PV diverter (Appendix G4) — diverts surplus PV to the cylinder 2026-06-04 22:59:12 +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