There is a lot of controversy involving spray foam roofing. Due to much misinformation, some individuals and companies give inaccurate information about spray foam roofing. In order to bring some clarity to the subject we have provided information straight from Sprayfoam.com, who are one of the most knowledgeable companies on the subject:
SPF Roofing Systems provide many benefits to building owners. The two most prominent benefits are waterproofing/leak prevention and insulation value. Many additional benefits also exist such as superior compressive strength, lightweight, self-flashing, durable and long lasting.
Sprayed Polyurethane Foam is applied as a liquid using plural-component spray equipment to fill cracks and crevices. It then expands approximately 30 times its original liquid volume to form a hard, closed cell monolithic roof surface. The Polyurethane Foam dries within seconds after applied to the roof surface. Its expansion results in a weather tight roofing membrane that is fully adhered to the substrate. Because of polyurethane’s lightweight it adds little additional weight to the structure and is often used in remedial applications. Polyurethane Foam has a history of more than 35 years as a maintainable roofing medium. Polyurethane Foam adds excellent insulation value to the structure and utility bills can reflect the difference.
Once the SPF has been applied to the proper thickness and finish specifications, a protective layer of elastomeric coating or gravel is applied. This protective layer produces a durable weather resistant surface and that can be walked on for normal maintenance.
Once the SPF has been applied to the proper thickness and finish specifications, a protective layer of elastomeric coating, or gravel is applied. This protective layer produces a durable weather resistant surface and that can be walked on for normal maintenance.
ENERGY STAR qualified roof coating products reduce the amount of air conditioning needed in buildings, and can reduce energy bills by up to 50%. The Cool Roof Program defines certain standards for reflectivity, and maintenance of reflectivity, in roof coating systems. These light colored roof coatings reflect the suns heat and UV rays and often lower the temperature of the roof by up to 100 degrees.
In our next blog post we’ll cover some of the disadvantages of SPF Roofing Systems…Stay tuned.