FAQ

There is always the option to select the “custom” for the fabric type which will allow you to manually input any U-Value you wish. 

If you are unsure on the U-Value of that element, then is recommended to contact the manufacturer of that particular building element or consult the CIBSE design guide.

For any further questions please speak to your Mentor on Freephone 01244 784 260 or email [email protected]