Icopal has launched Therm鈥橷, a three-in-one membrane for pitched roofs
The BBA and NHBC-approved, Part L-compliant membrane is part of Icopal鈥檚 Eco-Activ range, which is watertight, vapour permeable and insulates against heat gain in the summer and heat loss in the winter.
It comprises a reflective breather membrane on the outside, a reflective barrier on the inside and a sandwich of insulating quilt, designed to complement insulation in pitched roofs.
According to the company, research has shown that using Therm鈥橷 reduces radiant summer heat gain by between 4掳C and 9掳C.
The ultraviolet-resistant reflective outer surface reflects infrared rays during the summer, while the reflective inner surface and the integrated mat insulation helps to improve thermal performance. Part L compliancy is achieved by taping overlaps with Therm鈥橷 tape to provide convection-tight construction with up to 30% less air leakage, the company says.
Therm鈥橷鈥檚 vapour permeability is resistant to wind-driven rain and snow while allowing water vapour to pass into the tiled area outside, reducing moisture in the roof and controlling the risk of condensation.
Icopal
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