Mechanically-Attached Roofing SystemsSarnafils Mechanically-Attached Roofing Systems Sarnafast, Sarnafil Express, and Engineered SARNAFAST This mechanically attached disc system is your best choice when speed and ease of installation are important. Mechanical attachment provides long service life -- even under high wind uplift conditions. Sarnafils S327 membrane is reinforced with polyester, giving it high breaking and tearing strength. It also prevents excessive elongation and sheet deformation under the stresses produced by the lifting of the membrane during high wind events. SARNAFIL EXPRESS Sarnafil Express is a unique mechanically attached single-ply system. Sarnafil Express combines Sarnafils time-proven thermoplastic membrane with a polymer batten (Sarnarail) and fasteners between two welds in the membrane overlap. Fasteners are spaced according to wind uplift requirements. A modified Sarnamatic hot-air welding machine creates a continuous weld on both sides of the rails and fasteners. ENGINEERED Sarnafils engineered system uses Sarnabars and Sarnafasteners to ensure membrane performance on those installations that are subject to severe or extreme wind uplift forces, such as high rise buildings or facilities located in hurricane-prone areas. Sarnafils technical assist the designer in calculating the spacings for proper resistance to anticipated wind uplift conditions. In fact, Sarnafil is so confident in this system that we provide wind speed limitations in our warranties of up to 120 mph. The guideline specification for the Sarnafast System can be found under 3-part Spec on the left hand column. For other mechanically-attached specifications, please visit Sika Sarnafils website at http://usa.sarnafil.sika.com/ Sika Sarnafil 100 Dan Road Canton, MA 02021 Tollfree: (800) 451-2504 Fax: (781) 828-5365 E-mail: webmaster.sarnafil@us.sika.com Web site: http://usa.sarnafil.sika.com
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