3fcec7ef22
Third slice of the SAP10 Calculator Session A (ADR-0009). Ports the SAP 10.2 / RdSAP10 §4.1 air-change-rate worksheet for the no-pressure-test path. Returns an InfiltrationBreakdown carrying each named worksheet line so callers can audit per SAP convention: (8) openings_ach — Table 2.1 rate × count / volume (10) additional_ach — (storey_count − 1) × 0.1 (11) structural_ach — 0.25 steel/timber-frame, 0.35 masonry (12) floor_ach — 0.2 unsealed timber / 0.1 sealed / 0 (13) draught_lobby_ach — 0.05 absent, 0.0 present (15) window_ach — 0.25 − 0.2 × (pct_dp / 100) (16) total_ach — sum of all of the above Table 2.1 rates: open chimney 80, open flue 20, closed-fire chimney 10, solid-fuel-boiler chimney 20, other-heater chimney 35, blocked chimney 20, intermittent fan 10, passive vent 10, flueless gas fire 40 (all m³/hour per opening). 9 AAA cycles cover the baseline calculation, each Table 2.1 opening contribution, frame-vs-masonry structural baseline, suspended-timber floor sealed/unsealed split, draught-lobby presence, window draught- proofing scale, multi-opening aggregation, and volume_m3 ≤ 0 validation. Pressure-test override (worksheet lines 17-21) and mechanical-ventilation adjustments (Table 4g, n_eff formula §2.6.6) are out of scope for this slice — separate later slices per ADR-0009. |
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| .devcontainer | ||
| .github/workflows | ||
| .idea | ||
| .vscode | ||
| asset_list | ||
| backend | ||
| backlog | ||
| datatypes | ||
| docs | ||
| epr_data_exports | ||
| etl | ||
| infrastructure/terraform | ||
| model_data/requirements | ||
| packages | ||
| recommendations | ||
| scripts | ||
| services | ||
| sfr/principal_pitch | ||
| survey_report | ||
| utils | ||
| .coveragerc | ||
| .dockerignore | ||
| .gitignore | ||
| __init__.py | ||
| AGENTS.md | ||
| ara_backend_design.md | ||
| BaseUtility.py | ||
| CLAUDE.md | ||
| conftest.py | ||
| CONTEXT.md | ||
| devcontainer.sh | ||
| Dockerfile.test | ||
| Dockerfile.test.dockerignore | ||
| Makefile | ||
| MEMORY.md | ||
| package-lock.json | ||
| package.json | ||
| pyproject.toml | ||
| pyrightconfig.json | ||
| pytest.ini | ||
| README.md | ||
| run_backlog.sh | ||
| run_lambda_local.sh | ||
| serverless.yml | ||
| test.requirements.txt | ||
| tox.ini | ||
| UBIQUITOUS_LANGUAGE.md | ||
Model Repository
This repository contains the code pertaining to the development of the data science and machine learning products being utilised by Hestia.
The different folders in this repository relate to services that can be used independently, or can be imported and used as part of a larger application
Getting Started
Prerequisites
Dev Container Setup
This repo uses a Docker Compose-based dev container. The model-backend service joins a shared-dev Docker network so it can communicate with other local services (e.g. a frontend container) running on your machine.
VS Code users: The initializeCommand in devcontainer.json creates the shared-dev network automatically before the container starts. No manual step required — just open the repo and select Reopen in Container.
Non-VS Code / CI workflows: Run the following once before starting the container:
make dev-setup
This is idempotent and safe to re-run if the network already exists.
Folders
backend/
This folder contains the code for the fastapi backend service, which provides an interface to much of the functionality in this repository, for the frontend
model_data/
This folder contains related to the reading and preparation of assessment model data, including pulling out epc attributes
Testing
All tests can be run, against the configuration in pytest.ini running
pytest
This will run the complete panel of tests and report on coverage in the locations specified by the pytest.ini file.
To run tests in a specific service, e.g. inside of model_data, simply run
pytest --cov-config=model_data/.coveragerc --cov=model_data
This will produce the test results and coverage reports