A mixture of two liquid components, isocyanate and polyol, that results in a seamless solid which expands to 20 or 30 times larger than its original size commonly referred to as polyurethane foam. Polyurethane foam can be used as a spray in place insulation for buildings. Usually referred to as Spray Polyurethane Foam or SPF; the SPF roof is protected by an elastomeric coating that allows the polyurethane to expand and contract with extreme cooling in heating due to the climate.
Foam roofs save energy, by providing thermal insulation, thus lowering the cost of cooling a building. In fact foam roofs are usually able to save enough money on your energy bill to pay for itself in as little as 5 years. Due to its installation as a liquid and its elasticity, foam roofs can be put on just about any roof surface, including abnormally shaped surfaces. Foam roofs are quite durable, just as durable as most other roofing materials. You can walk on it the same as other roofs and needed repairs are usually easier to spot. On top of this they are a very long lasting if maintained properly, lasting more than 50 years. While they don't require much maintenance, every 10 to 15 years they will need to be cleaned, primed, and re coated to lengthen the overall lifespan. The long lasting attribute of a foam roof can be credited to its elasticity, water resistance, light weight and strength. Foams roofs are also affordable, starting at about $2.50 per square foot.
We had recently moved to this area and didn't have the ‘built in network’ of friends and family to suggest a good contractor. Knowing you pre-screen the contractors you work with took a lot of pressure off the entire hiring process.