Thermakraft 215 Bituminous Self Supporting Wall Underlay is specifically designed for use in Domestic and Commercial type buildings. High water resistance provides for temporary weather protection prior to installation of cladding, and acts as a secondary layer of water protection during its serviceable life.
Versatile building Underlay, designed for use in residential and commercial wall and roof applications.
Reduces wind entry into wall and roof cavities, improving thermal efficiency of bulk insulation.