With a track record of performance of over 50 years, Sarnafil roofing membranes are the products of choice for architects, specifiers and building owners who want the peace of mind that comes with buying from the performance leader. Sarnafil G 410 roof membrane is a thermoplastic PVC membrane used in adhered systems. Sarnafil G 410 is fiberglass reinforced, offering exceptional dimensional stability and a low coefficient of thermal expansion suitable for adhering the membrane to the roof substrate. A unique lacquer coating is applied to the top surface of the membrane which helps to reduce soiling. Sika’s Thickness Guarantee Program for all Sarnafil branded membranes guarantees they meetor exceed the labeled thickness, rather than following industry standards, which allows for membranes to be manufactured up to 10% below advertised thickness. INSTALLATION After proper preparation of the substrate, the Sarnafil G 410 membrane is unrolled into a Sarnacol adhesive in accordance with Sika’s Technical requirements and then pressed into place with a minimum 100 |b steel roller. The seams are heat-welded together by trained operators using hot-air welding equipment. For the EPD calculations, the application of the adhesive Sarnacol 2121, which is broadly applied in the U.S., was assumed (0.44 kg/m?).