Engineered Roof System for High Winds
The Sarnafil Engineered System is designed for roofs that are subject to severe or extreme wind uplift forces, such as high-rise buildings or facilities located in coastal areas. The advantage of the Engineered system is the fastening pattern – both row spacing and fastener spacing can be customized or ”engineered” for any specified wind load. The Engineered System utilizes a specially designed bar which is secured to the structural roof deck with corrosion-resistant fasteners. The bar clamps the membrane fully along its length, uniformly distributing the dynamic load produced by wind uplift. Sika Sarnafil offers wind warranty protection of up to 120 mph with this system.
The National Oceanic and Atmospheric Administration’s National Weather Service states that ”a high wind event has occurred whenever sustained winds of 40 mph or more, or a peak gust of 58 mph or more, has been reported from reliable observing equipment.” A roofing system will truly be tested when it experiences multiple wind events over time in the most extreme weather conditions.
Sika Sarnafil roofing systems have stood the test of time in the harshest climates all over the world. Our experience with high wind roofing systems in such diverse locations as the Swiss Alps to the Florida coast provide you with the peace-of-mind that comes from working with an experienced partner.
Projects Where a High Wind System Should be Considered:
High wind events are not just limited to those buildings that are located near the coastline or in tornado prone areas. Consider the following criteria when determining if your building should have a roof system designed to resist high wind loads.
- Building height of 70 feet or taller
- Location near any large body of water (coastal or inland)
- Location within hurricane prone areas
- Building codes requiring a roof to withstand winds greater than hurricane velocity (74 mph)
- A desire for long term performance and complete security
Sika Corporation – Roofing
100 Dan Road
Canton, MA 02021
Tel: (800) 451-2504
Fax: (781) 828-5365
Web site: http://www.usa.sika.com