Evaluate continuous insulation and thermal-bridging design to support energy-code compliance and condensation-risk review during BECx design review

Steps

1. Use ISO 10211, Thermal bridges in building construction — Heat flows and surface temperatures — Detailed calculations, for the geometrical model used to numerically calculate linear thermal transmittances (Ψ-values), point thermal transmittances, and internal surface temperatures
2. Apply the standard to structural penetrations and repeating details (shelf angles, embeds, parapets, balconies) where continuous insulation is interrupted, since uncorrected thermal bridges commonly account for a significant share of total fabric heat loss in well-insulated assemblies
3. Calculate the surface temperature factor (f_Rsi) at each modeled detail to assess condensation/mould risk at interior surfaces, per the standard's methodology
4. Feed the calculated linear/point transmittances into the project's whole-building energy model or code-compliance U-factor calculations, since uncorrected assemblies-only U-factors can understate real heat loss
5. Coordinate ISO 10211 modeling scope with the BECx design-phase peer review so identified high-risk thermal bridges are flagged for detail revision before construction
6. Verify which specific details require modeling versus which are covered by simplified/deemed-to-comply code provisions in the applicable energy code edition