Spray polyurethane foam (SPF), or spray foam, is a plural component polyurethane foam insulation that provides protection against leaks and increases energy efficiency when applied to flat roofs. Because the product is applied as a liquid it fully bonds (fully adhered system) to the substrate creating the highest wind uplift.
SPF seamlessly covers the roof as one uniform roofing system. The SPF roof has the highest wind ratings of any roofing system on the market today. In Florida, protection against wind and uplift is a major consideration for any building owner.
High-density SPF, which expands at a lower rate than lower density SPF, is used to completely seal and insulate flat roofs. In addition to insulating your building SPF can promote water drainage on your flat roof simply by installing more SPF in low areas of the roof. Our foam mechanics can create a professionally sloped drain system that moves troublesome water to drains and scuppers.
What Is Spray Foam Roofing?
Applicators combine two liquids to initiate a chemical reaction on the roof that creates foam. These liquids arrive at the job site in separate containers and are typically referred to as the “A” side and “B” side. The two chemicals combine to form a new substance, urethane foam.
How Is Spray Foam Roofing Applied?
SPF is applied as a liquid using high pressure plural-component spray equipment. Upon being sprayed on a roofing surface, SPF expands to roughly 30 times its original liquid volume and dries within seconds. The expansion results in a dense, monolithic roofing material that is fully adhered to the substrate. After about two minutes you can walk on the SPF. The fast application allows for fast dry in times when time matters in keeping your building leak free.
SPF roofs only utilize strong, high-density closed-cell foam, although it is considerably less dense than other roofing materials and adds little additional weight to the roof. Due to its ability to adhere to a wide variety of substrates, SPF roofs are the perfect solution for reroofing applications. Also, spray foam roofs are more robust than other roofing systems, offering high wind uplift resistance. Spray foam is frequently used as the exterior roofing system in flat roofing.
What are the advantages of Spray Foam Roofing?
The advantages of employing high-density SPF on your flat roofs include:
- Energy efficiency
- Low maintenance
- Wind protection
With its high R-value, SPF helps prevent heat transfer from your roof. Due to the bonding nature of the chemicals in SPF, your spray foam roofing will last longer than other forms of flat roofing. Maintenance is lower because repairs are usually completed with simple caulking and after the term of the warranty you only need to add additional protective coating to the SPF and you will renew your long term warranty at a fraction of the cost of re-roofing.
Employing spray foam roofing can help you meet the requirements of programs such as Energy Star, LEED and NAHB Green Building. We are fully accredited participants in all three of those energy conservation programs.