Sandberg is able to assist with establishing the overall thermal performance of buildings to demonstrate compliance with Part L of the Building Regulations.
This service is of particular value to building envelope contractors and architects at the early stage of a project when it is still possible to trade-off different elements of the building envelope whilst still achieving compliance. This permits more flexible specification of the building envelope, allowing substantial cost savings to be achieved in some cases.
U-values are a measure of the heat loss through the building envelope. In order to demonstrate compliance with Building Regulations, it is necessary to prove the U-values of the various components used to construct the building envelope. It is also necessary to demonstrate that thermal bridges have been properly allowed for, which frequently requires recourse to advanced computer modelling techniques. Both linear and point thermal bridges can be analysed.
U-values and thermal bridging can either be calculated by hand or simulated using finite element analysis, and both 2D and 3D analyses can be undertaken. These analyses are carried out in accordance with the requirements of British and European Standards and in line with guidance published by the BRE, CWCT, GGF and CAB.
Sandberg can also advise on measures to improve thermal performance and can review designs to assess their capability in reducing heat loss through the building envelope.
Summary of services provided:
- Design review to assess thermal performance
- Facade overall U-value calculations
- Thermal bridging calculations
- Assessment of thermal improvements in historic buildings
For more information contact our in-house experts: