Our U-value calculations are carried out in accordance with BRE443:Conventions for U-value Calculations and can be submitted with your building control applications to demonstrate compliance.
U-value calculations are provided free of charge where our products are being used.
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U-Value & Condensation Risk Calculator
- U-values calculated to BS6946 2017 including Annex C (Surface Resistances), Annex D.1 & D.2 (Thermal Resistance of Airspaces), Annex F (Correction to thermal transmittance).
- U-values calculated to ISO 13370 2017 – Thermal performance of buildings – Heat transfer via the ground
- U-values for light steel-frame construction calculated to BRE Digest 465
- Condensation Risk Analysis calculated to ISO 13788 (Glaser method), supporting infinite condensation planes. Automated external environment corrections for Suspended Floors & Slab on Ground Floor element types.
- Postcode Specific Climate Data – The condensation risk will be calculated based on up to date (pulled at time of project creation) 20-year average temperature & humidity data for the project’s postcode. Local climate data is a requirement of both BS5250 & ISO 13788.
- Print full project to PDF
- Custom air layers with low emissivity and ventilation
- Custom fixing profiles
- Adjustable return periods, external and internal environments