• About the Certified Thermal Details and Products Scheme

    About the Certified Thermal Details and Products Scheme

    The Certified Thermal Details and Products Scheme provides a non-government database containing independently assessed thermal junction details, as required for Building Regulations/ Standards compliance in relation to Thermal Bridging.

    The Scheme and database allows users ongoing independent, third party assessment and certification of the ‘as designed’ thermal performance of:

    • Building junction details (e.g. SAP Table K1 + some bespoke detail types)
    • Opening products (e.g. windows, doors and rooflights)
    • Major (plane) building elements (e.g. wall, roof and floor products)

    This ensures that the performance requirements of the appropriate standards are met and maintained.

    The thermal performance values that can be reported upon within the scheme are:

    •  For junctions - ψ-value (W/mK) and temperature factor, f
    • For connections/ penetrations - χ-values (W/K) and temperature factor, f
    •  For plane building elements or products - U-value (W/m2K)

    The thermal performance values are calculated in compliance with:

    • BR 497 - Conventions for Calculating Linear Thermal Transmittance and Temperature Factors, BRE
    • BR 443 - Conventions for U-value calculations, BRE
    • BS EN ISO 10211 – Thermal bridges in building construction - Heat flows and surface temperatures - Detailed calculations
    • BS EN ISO 6946 - Building components and building elements. Thermal resistance and thermal transmittance - Calculation methods
    • BS EN ISO 13370 - Thermal performance of buildings. Heat transfer via the ground - Calculation methods
    • BS EN ISO 10077 (parts 1 and 2) - Thermal performance of windows, doors and shutters - Calculation of thermal transmittance Numerical method for frames

     

    For more information

    Call us on 0333 321 88 11 if you would like to know more, or email enquiries@bregroup.com.