Import from Drawing
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Wall Assembly Layers
Add layers from exterior to interior
Include air films (exterior & interior surface resistance)
Apply effective R calculation (thermal bridging via studs)
NBC 9.36.2.4
%
From Table A-9.36.2.4.(1)-A.
A checkbox will appear under each insulation layer — tick it to apply the parallel-path correction (cavity + framing) for that layer.
Assembly type + spacing auto-fill the framing factor from BCBC Table A-9.36.2.4.(1)-A; pick "Custom" to override manually.
Total Thermal Resistance
R-Value (Imperial)
—
ft²·°F·h / BTU
RSI Value (Metric)
—
m²·K / W
BCBC §9.36.2.6 Compliance Check
Compare your effective RSI against the climate-zone target
BC Energy Step Code compliance is whole-building performance (TEDI / MEUI + airtightness,
§9.36.6) — a single assembly cannot on its own meet a step. The step shown is
envelope-equivalent guidance only: Step 1–2 = §9.36.2 base, Step 3 ≈ +15%, Step 4 ≈ +30%,
Step 5 ≈ +50%. Confirm the required step and pathway with the AHJ.
Layer Breakdown
| Layer | Thickness | R-Value | RSI |
|---|