Coef Wall
An engineered collection of our empirical case studies, precise methodological breakdowns, and critical industry insights.
How We Assess Surface Condensation & Mould Risk
A guide to our standalone surface-temperature assessment — proving that a junction stays warm enough to avoid condensation and mould, when a building control body, warranty provider or insurer asks for evidence.
How We Calculate the P1 Junction (Party Wall to Ground Floor) in 3D
A guide to the SAP junction that can't be captured in a single section — why the party-wall-to-ground-floor junction (P1) needs two full 3D models, and how BR 497 turns them into the Ψ-value your assessment needs.
How We Calculate 3D U-values for Rainscreen & SFS Facades
A guide to our method for build-ups where metal brackets, rails and steel studs pierce the insulation — why a hand-calculated U-value overstates their performance, and how we model the repeating bridge in 3D to get the figure that counts.
How We Calculate 3D Thermal Bridges
A guide to our method for the junctions a flat section can't capture — balcony connections, structural penetrations and three-way corners — and the standards behind every figure we report.
How We Calculate 2D Thermal Bridges
A guide to our method for assessing linear thermal bridges — the heat lost at junctions, the risk of condensation, and the standards behind every figure we report.