Insulation Panel Insulation Values

The insulation thickness of a profiled roof panel varies from 30 mm to 300 mm. To achieve the same insulating value as a flat panel, a profiled roof panel needs to be thicker. The through fasteners or fixing clips are thermal bridges, but it has been shown that these are unlikely to decrease the R-value by more than 2%.

Different cores will also have different values for thermal insulation and noise attenuation, as will the details of panel joints and interfaces with other materials.

The manufacturer must calculate and state the net insulation value of a panel.