Read-only demonstration. Four sanitised or hypothetical engineering projects. Each states its own validation status; nothing shown is engineer approved.

ENERGY & BUILDING-CODE COMPLIANCE · CASE STUDY

San Francisco Office Energy & Compliance — Inputs

NOT COMPLIANT / NOT ACCEPTED — native Title 24 runs rejected; official report not generated; ASHRAE PRM blocked

Inputs

Building and site

Building: Synthetic WF1 London Run 4 office, single storey, 12 rooms; geometry unchanged (same geometry hash in London and SF)
Areas: 756 m² conditioned (8,137.52 ft²); 864 m² in the model incl. 108 m² unconditioned plantroom
Site: Hypothetical San Francisco site, provisional ZIP 94103; permit date assumed 2026-11-02
Weather (offline): CEC CZ2022 climate-zone 3 file, Oakland station 724930 — named only, not shipped (licence not stated)
Weather (native Title 24): CZ2025 Oakland file locked by the Title 24 mode (D-CX-21)
Lighting: WF1 design 9,864 W installed; Title 24 area-category allowance 5,480 W

CEC construction mapping (native U-values, W/m²K)

Construction	WF1 U	CEC-mapped U	Change
External wall	0.2613	0.2605	−0.3 %
Roof	0.1801	0.1782	−1.1 %
Exposed floor	0.2209	0.2223	+0.6 %
Partition	1.8568	1.8076	−2.6 %

Title 24 accepts only CEC library materials; the WF1 layers were mapped with insulation R preserved (D-CX-22, engineer review required). Glazing data are European values, not certified US ratings.

**Title 24 2025: Standard Model generation blocked by non-CEC construction materials**Native IESVE message on the first attempt: 'The following constructions have non-compliant materials: STD_FLO1, STD_PART, STD_ROOF, STD_WAL1'. Resolved later by mapping the WF1 layers to CEC library materials (D-CX-22, engineer review required). Cropped screenshot.Screenshot of the native tool (static image) · source: compliance-NATIVE-T24-UI-20261024/shots/59-gen-std.png (cropped)

Sanitised derivative of preserved evidence (compliance-* evidence folders, branch feat/compliance-engine). Nothing was re-simulated for this pack; IESVE was not started. Screenshots are cropped and reviewed; plots and the report contain only values read from the evidence. Not a compliance document. · Pack sf-office-compliance-r2 (built 2026-10-25); every file is checked against its SHA-256 before it is shown.