Accurate U‑values are increasingly important in construction projects where insulation performance must meet regulatory or project-specific requirements. Therefore, we have developed an easy-to-use U-value calculator for flat roof applications.

Calculations are possible in 2 directions:

- Calculating the U-value of the construction by selecting the construction element types and their thicknesses.

- Calculating the thickness of the FOAMGLAS for the given U-value by selecting the missing construction element types and thicknesses.

The U-value calculator will give you a first indicative U-value.

Please note that, at a final stage, it is best to contact Foamglas sales engineer, for a more thorough calculation.

For inverted roof application calculations, please contact us at technical@foamglas.co.uk. We will be happy to assist you with your specific needs.