Free Online Condensation Risk Analysis Calculator

Free to use. Saves time. Gives peace of mind.

Our new online condensation risk analysis tool saves you precious time by evaluating the risk of interstitial condensation alongside generating U-value calculations, all in less than five minutes!

Interstitial condensation in a structure can result in rot or corrosion, so calculations evaluating this risk give you peace of mind that your design won’t cause unintended damage to the building’s fabric.

Quick & easy to use

After you’ve generated your U-values, you’ll have the option to analyse the risk of condensation.

The tool will pre-populate the build-up and U-value data and then you then simply enter the postcode for the building location. This identifies the country and the nearest available region for climatic data. You then select the property type from the dropdown menu.

The tool quickly calculates the risk of condensation, and you can then view the boundary conditions (data used) and download the calculation, including temperature data and dewpoint graphs.

All calculations are performed in line with BS EN ISO13788 and follow the guidance in BS 5250: 2021 Code of Practice for the Management of Moisture in Buildings.