Thermal Calculation Examples 01

£9.99 + VAT

A thermal bridge (Psi value) calculation analysis on a selection of our details so we can better understand the performance of the junctions. 

We worked with SW Thermal Analysis to review and calculate the Psi values on a selection of junctions for our 150mm masonry cavity wall details and our CLT details.

Along with the Psi value results for each junction, you can see a temperature distribution diagram of each detail. These diagrams are powerful tools used in construction to visualise thermal bridging effects within the building assembly. The diagram employs a rainbow colour scale to represent temperatures, allowing us to identify areas of heat loss or gain more intuitively. The colour scale ranges from red to blue, which represent maximum to minimum temperatures.

This document is available for free for all members.

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What’s included in the download?

Detail Library Thermal Calculation Examples includes two different construction types, masonry cavity wall and CLT construction. For each one the foundation, window and roof junction details have been calculated.

The download is in PDF format. 


What do these calculations mean?

You can find out more about these calculations, thermal bridges and Psi values in our blog post. 

Need your own details to be calculated?

We have been working with SW Thermal Analysis for these details. If you would like to find out more about thermally calculating your own details or to request a quote, please contact SW Thermal Analysis.




Thermal calculations for informational purposes only. The information is not to be used for any SAP assessments or other assessment/accreditation services. You may not reproduce, republish, upload, post, transmit or distribute the drawings to other parties. We offer no assurance or guarantee of Building Regulations approval or compliance through the use of these drawings. These details should not be considered as industry standard, and professional advice must be sought when preparing construction drawings. Whilst every effort has been made to ensure the accuracy of the information provided, we make no guarantee in respect to errors or omissions. The details must be regarded as a starting point for developing your own detail relevant to your specific project and needs.