Using plural-component spray equipment, spray foam is applied as a liquid, which expands approximately 30 times its original liquid volume to for a hard, closed-cell monolithic roof surface that fills all cracks and crevices.
After it is applied to the roof surface, spray foam cures in a few seconds. While it completely adheres to the substrate, its expansion results in a weather tight roofing membrane. Spray foam is frequently utilized in remedial applications and adds little additional weight to the structure, given polyurethane’s low mass.
A layer of protective elastomeric coating or gravel, which promotes a weather-resistant, durable, and protective surface that can be walked on for normal maintenance, is applied on top of the spray foam after the SPF has been applied to its finish specifications and proper thickness. With 35 years as a maintainable roofing medium that adds excellent insulation value to building structures, spray polyurethane foam has a long history of energy efficiency that can be reflected in low utility bills as well as provide an air and moisture barrier.
A spray foam roof quickly dispels the preconceived notion that a “foam” roof is made up of soft foam, like the one found in seat cushions, and that could easily be damaged and require constant maintenance. Quite the contrary, SPF roofs are very durable and can handle construction and foot traffic well. Polyurethane caulking provides a simple fix when the SPF roof sustains any type of damage. Even though it is a rigid system, it can still sustain damage from dropped tools and the like.
Spray foam insulation in the crawl space is a superior insulation product that overcomes several disadvantages of other insulation products. Spray foam circumvents typical insulation problems through its ability to completely fill voids and open spaces, resulting in a complete, essentially uniform thermal barrier.
Spray foam insulation installed between your floor joists in your crawl space is the only material that will create an effective thermal barrier from penetrations like wiring, plumbing, ductwork, and imperfect joist spacing. Closed-cell spray foam will also serve as an effective moisture barrier between the ground and a home’s subfloor surface. Controlling the presence of moisture in a home is critical to preventing the potential for mold growth.
The lifespan of an SPF roof can be long, as long as the coating protecting the SPF is properly maintained. Depending on the amount of coating installed, the roof should be cleaned, primed, and recoated every 10 to 15 years. A quality SPF roof can last 50 years or longer if this is done.
No Seams – Spray polyurethane foam applied to the roof surface creates a seamless system, in which the seams that would otherwise allow water and air infiltration from the roof into the building are closed up. Having a seamless system also eliminates ice damming during the winter season and spray foam also builds up the roof to eliminate any water pooling and ponding on the roof that can cause significant weight on the roof and cause it to fail over time. Spray foam is a self-flashing system, which eliminates leaks that are typically seen with other products. When applied, spray foam conforms to the roof substrate so it flashes mechanical equipment, skylights, and parapet walls.
Several factors revolve around the cost of an SPF roof, as it happens with every other type of roof. Typically, a basic SPF roof can start at approximately $2.50 per square. Cost can vary depending on things such as geographical location, the project’s complexity, accessibility, foam thickness, and foam coating system.
Consider the average weight of traditional roof insulation for conventional built-up roof systems – it is nearly three pounds per cubic foot, whereas an inch of spray polyurethane foam weighs approximately 60 pounds per 100 square feet. A spray foam roofing system is roughly 10 percent of what a conventional built-up roofing system (600 pounds per 100 square feet). This makes the spray foam roof easy to maintain.
Spray foam roofing systems can be used to re-roof and replace existing systems, as well as protect the roof of new construction. It can not only be applied to flat surfaces, but also to domed, saw-tooth, pitched, and sloped roofs.
Different yet essential procedures based on existing roof structures. Installation are involved in SPF roof installation, which is why it is important to be familiar with all local and state building codes to meet the requirements of a given area, and that the proper materials are used.