THERMOFLEX DUAL

THERMOFLEX DUAL is a polymer-modified waterproofing membrane obtained from the modification of THERMOFLEX DUAL distilled bitumen with poly-olefin based co-polymers. The modified compound makes THERMOFLEX DUAL an easy to apply membrane that requires low consumption of gas and has excellent adhesion properties that ensure, when the membrane is properly installed, very good bonding and tightness of all joints and overlaps. There are two reinforcements: a central non-woven polyester carrier (120g/m²) combined to a glass fibre carrier (50g/m²) which is positioned at the very top surface of the membrane. The combination of the two carriers results in excellent mechanical properties, unmatched dimensional stability and a unique resistance to weathering agents, with no signs of ‘alligatoring’ in time on the membrane surface. THERMOFLEX DUAL is available with a talc finish on the upper face to prevent the roll from sticking to itself and benefits the unrolling of the product during installation. The talc finish also enhances the adhesion of aluminium reflective coatings and acrylic paints after application. The lower face of THERMOFLEX DUAL is backed by a special polyethylene burn-off film which melts during torching and prevents the roll from sticking to itself. The correct application temperature is visible from the embossed surface of the membrane which is below the burn off film, when the correct application temperature is reached, this embossment melts, also helping vapour diffusion and avoiding blistering. The burn off film also has a printed10cm square which allows the alignment of the side laps quickly and easily during application. THERMOFLEX DUAL offers a high static and dynamic puncture resistant, good tensile strength, both longitudinal and transversal, ultimate elongation and exceptional dimensional stability.