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RdSAP10 §5.12 Table 19 footnote (1): when floor_construction is unknown, age bands A and B default to suspended timber, not solid. Previously u_floor always used the BS EN ISO 13370 solid-floor formula, which under-counted ~14% on pre-1929 dwellings. Elmhurst worksheet U985-0001-000490 Main Dwelling (A=14.85, P=7.42, w=0.400, age B) records floor U=0.71 W/m²K — the suspended-floor formula on §5.12 page 46 reproduces this exactly. The solid branch returned 0.66. Description prefixes "Solid, ..." / "Suspended, ..." take precedence over the age-band default since they're explicit assessor observations. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com> |
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| src/domain | ||
| pyproject.toml | ||
| README.md | ||
domna-domain
Shared domain types — Property, Properties, BaselinePerformance, Plan, PlanPhase, Scenario, ScenarioPhase, ScenarioSnapshot, Recommendation, OptimisedPackage, EpcPropertyData, etc.
Boundary: types only. No persistence, no IO, no business logic. Other packages and services depend on domna-domain; this package depends on nothing internal.
Domain definitions live in ../../CONTEXT.md. New types added here must match the glossary terms.
Layout
src/domain/
├── __init__.py
├── property.py # Property, Properties, PropertyIdentity
├── site_notes.py
├── landlord_overrides.py
├── baseline_performance.py # lodged + effective pair (ADR-0004)
├── plan.py # Plan, PlanPhase, OptimisedPackage
├── scenario.py # Scenario, ScenarioPhase, ScenarioSnapshot (ADR-0005)
├── recommendation.py
├── geospatial.py
├── solar.py
├── anomaly_flags.py
└── ml/
├── __init__.py
├── transform.py # EpcMlTransform (versioned per §8.3)
└── schema.py
When datatypes/epc/domain/ folds in, the EPC schema types move under src/domain/epc/.