If you’re thinking about installing foam roofing on your home, you’ll need to learn more about the process. These roofs are created by spraying a liquid polyurethane onto the roof surface. The mixture then expands and hardens to create an air-tight seal, which prevents heat from escaping through the roof deck. This material provides a variety of benefits, including improved energy efficiency and increased roof durability.
While foam roofing may seem like a complicated process, it’s actually quite easy to install. The foam itself is extremely lightweight and can be installed in a variety of ways. A typical system consists of two layers of foam. The first layer is polyurethane foam. The second layer is an elastomeric coating. Both materials are waterproof and protect the roof from rain, water, and the sun. The nominal density of foam roofing is 2.7 to 3.0 pounds per square yard. Its thickness can also be increased.
There are several advantages to foam roofing. In many cases, you can apply it over an existing roof. If you choose to apply it over an existing roof, be sure to clean the surface thoroughly. It should also be free of contaminants. Once the foam is applied, it’s necessary to cover it with an elastomeric topcoat. The topcoat protects the foam and prevents it from being damaged by UV rays, moisture, or fire.
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