Spray Foam Roofing - SPF Roofing
SPRAY FOAM ROOFING
Spray Polyurethane Foam Roofing, otherwise known as spray foam roofing, is a liquid material that is sprayed on and expands into a thick foam to create a solid watertight layer across a roof.
The common practice in using spray foam roofing is in roof repair and in reconfiguring a roof through the removal of any saturated areas and replacing them with similar materials. Then the spray foam is added to the entire roof surface to create roam roofing.
While SPF roofing is not very common or widely recognized, it has been used since the 1960s on industrial, commercial, and residential structures. An SPF roofing system is suitable for any climate, and if proper installation and maintenance, it can last for over 50 years.
The Spray Polyurethane Foam substance (SPF) as it is used for roofing applications, is produced on the job site by mixing two extremely reactive chemicals in the right proportions.
PROS OF SPF ROOFING
SPF roofing is so easy to install, it can save a tremendous amount of time, and therefore money. That’s because the foam roofing application is very quick and can be done without any interruption to the daily operations of the facility.
SPF Roofing Application
Spray foam roofing is installed by spraying the liquid mixture over the existing roof and letting it expand into a foam, much like indoor crack sealants. Because the spray is a liquid and expands, it can conform to any roof shape or type, even if it is irregularly shaped. After the existing roof is cleaned, the spray foam roofing can be applied directly on the asphalt, shingles, concrete, metal, or wood.
SPF roofing is a sealant, so it provides thermal, air, and moisture barriers while its thickness brings insulation that is measured as the highest R-value per inch available. That makes a foam roofing system an excellent insulation material for the entire building. The polyurethane foam limits the entry of heat during the summer and maintains internal temperatures over the winter months, saving on energy costs throughout the year. Plus, the silicone top coating is UV-resistant, which protects the foam and limits heat absorption.
Once spray foam roofing is installed, it requires little in the way of preventative maintenance or repair. And barring any damage, SPF roofing can last longer than 50 years. However, SPF roofing systems should undergo an inspection twice per year, ideally in the spring coming out of winter, and again in the fall in preparation for the coming winter months. It is also recommended that the roof is inspected following any unforeseen events that may have caused damage. If silicone recoating is required, removal of the old SPF roofing is not necessary. A simple application of a new coat over top of the existing coat is needed.
Seamless and Waterproof
Seamless SPF Roof
Seams in a roof leave gaps open for water penetration, making them the primary source for leaks in any roof system. But spray foam roofing has no seams, so this problem is completely eliminated. As the SPF roofing mixture is applied to the roof as a liquid, it fills gaps, seams, and cracks that exist in the current roof and substrate. And the polyurethane foam application allows the roofing contractor to level off the roof so water cannot pond in one spot. And since the foam material expands and contracts along with the building as temperatures rise and fall, cracks are highly unlikely, leaving the roof perfectly waterproof.