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Torch-on Felt

Thermal insulation for torch-on bituminous waterproofing systems


Our PIR thermal insulation boards can be used alongside torch-on bituminious roofing applications across concrete, timber and metal deck roofs.

Torch-on waterproofing roof membranes have an underside that has been treated with bitumen. On installation, this covering is heated with a propane gas torch and the membrane is applied to the roof surface while the bitumen in still hot. An integral part of this system is the installation of the vapour control layer on the warm side of the insulation. This avoids condensation risks by maintaining the same temperature as the inside of the building.

Available in a wide range of thicknesses, our products are easy to cut, clean and install, helping you to avoid the risks associated with lower quality competitor products and assisting in meeting the appropriate building regulations for your project, whether new build or refurbishment.

Our Powerdeck U insulation board is ideal for this application, and can meet the Building Regulation 0.2 U-Value requirement with a single 130mm layer.