Commercial
Closed cell Sprayed Polyurethane Foam (ccSPF) roofing consists of two parts, an isocyanate and a resin that are heated, pressurized and delivered to a special spray gun. These liquids are mixed in the gun and applied at a one-to-one ratio. A chemical reaction occurs and the mixture expands 20 or 30 times forming a solid, monolithic (seamless), closed-cell, fully-adhered roof system that provides excellent water-resistance and thermal insulating abilities. While the resulting foam is waterproof, it is susceptible to breakdown from UV sunlight. Soon after applying the foam a heavy duty acrylic coating is applied to the foam.
The ccSPF roof is one of the best, most cost effective low slope roofing materials on the market. There are ccSPF roofs that have been in service for 30 years. The ccSPF roofs are probably the most sustainable of all roofing systems. With proper maintenance and regularly scheduled re-coating (every 15 years) there is virtually no limit to the length of time these roofs will last.
Additional benefits of a ccSPF roof are:
1) ccSPF roofs are very light weight. They will adhere to most any substrate and most of the time there is no need to remove the old roof, cutting down on re-roofing costs and also minimizing landfill.
2) ccSPF roofs are extremely durable. They are especially resistant to hail and wind driven debris damage. The acrylic coating protects the foam from UV light damage, but it is the foam that is the final barrier to water damage. Most roofing materials leak when the surface is punctured and once through the surface, the moisture can spread making the leak hard to find and allowing more damage. With a ccSPF roof, the puncture must penetrate completely through the acrylic coating and 1 « inches of foam before it will leak. Then, because of the adhesive nature of the foam, the water isn?t likely to spread between the foam and the substrate so a leak should only appear directly below the roof penetration. In the rare instance that a leak does occur, repair is relatively easy, usually only requiring a tube of urethane calk.
3) ccSPF roofs are highly resistant to wind damage. Studies following several major hurricanes indicated that ccSPF roofs were more resistant to wind damage than other types of roofing. After Hurricane Katrina destroyed the roof on the Louisiana Superdome, ccSPF was the roofing product chosen. Most roofing manufacturers guarantee their products up to gale force (40mph) winds. The ccSPF roof on the Superdome is guaranteed up to hurricane force (74mph).
4) ccSPF roofs add R-6.8 per inch. Coupled with the white acrylic coating they are very energy efficient and can pay for themselves in energy savings. Texas A&M University began using ccSPF for re-roofing on their many buildings in 1980. The university maintained accurate records of energy costs before and after the installation of the ccSPF roofing. On average, the energy savings pay the roofing costs in just 4 « years. In addition, with built-up roofing systems there were problems from the beginning with maintenance and leaks. This has not the case with ccSPF roofing. Now, with over 7 million square feet of ccSPF roofing installed, the university uses nothing else for both re-roofing and new construction.
5) ccSPF roofing will help meet certain LEED?s criteria.
6) Due to its versatility, ccSPF can be applied over many difficult, uneven roof surfaces and can be layered to provide positive drainage in almost any area.
Tomorrow's Roof Today
Texas A&M University
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Thermal Roof Systems, Inc. • 6750 Florin Perkins Road, Suite 400 • Sacramento, CA 95828
Phone:(916) 387-1300 • Fax: (916) 387-1302
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