If you have a commercial property or even a home with a flat roof, then you will need to choose your roofing materials carefully to make sure that your roof is properly protected from water seepage and weather damage. One popular roofing material is foam roofing or SPF roofing. This material does have some benefits over other flat roofing options:
One of the main benefits of opting for SPF roofing is the fact that the material does not have any seams. EPDM, PVC, TPO, and flat steel roofing materials all have seams where water can seep down into your business. Seams are the most likely failure point, especially when it comes to membrane style roofs.
SPF does not have any seams because the polyurethane material is actively sprayed onto the roof. The spray builds up into a thick layer of material, much in the same way that spray foam insulation does. The material is essentially the same. However, the roof will feature a hard, closed cell polyurethane instead of the open cell variety used inside homes.
In addition to the full coating along the surface of the roof, spray foam can be layered around protrusions like plumbing vents in a way that extra flashing is not required. Also, roof valleys are coated with extra layers of material so that ponding is not an issue. This essentially cuts down on a lot of the extra work that is often required to create a flat waterproof surface.
The vast majority of flat roofing materials are energy efficient. They are made this way to specifically reflect the sun's rays since flat roofs do receive a great deal of direct sunlight. While most membrane roofs do have high R-value ratings, foam varieties have far fewer issues with thermal bypass. Thermal bypass occurs when heat penetrated the roof and moves into the building The lack of openings around the foam as well as the thickness of the material cut down on bypass problems.
Also, the vast majority of spray foam roofs are covered in a light elastomeric coating. The coating is white to keep the roof cool and to eliminate heat transfer issues. If the coating is not used, then a sealer can be applied to the surface of the roof that adds another layer of protection against weather damage. Keep in mind that coatings will typically need to be reapplied to retain protection across the roof's surface. Speak with your roofing professional about this and when the application should be scheduled.
Check out a website like http://www.dodgefoamandcoatings.com for more information and assistance.