Tuesday, August 2, 2011

Is SPF right for your next roofing project?

Specifying SPF Roofing Systems: Part 1

Is a spray polyurethane foam system right for your next roofing project?

In today’s buildings industry, there is a growing desire to provide owners with durable, long-lasting roofing systems that combine high energy performance with low maintenance costs. From that desire, a renewed interest in SPF roofing systems has risen. SPF roofing systems like those from Conklin have been around for more than 40 years; however, there is still a significant lack of knowledge among many roofing professionals on how to specify, install, or maintain these systems.

What is spray polyurethane foam roofing?
Spray polyurethane foam (SPF) roofing consists of an application of specifically designed foam covered with an elastomeric coating (typically acrylic, silicone, or polyurethane) or aggregate covering to protect the foam from ultraviolet rays. Specialized equipment mixes two liquid components at the spray gun that applies the SPF to a prepared substrate. The mixed liquid expands many times its original volume in a matter of seconds, forming a rigid foam plastic that chemically bonds to the surface to which it is sprayed. Spraying the foam in ½-inch to 1½-inch lifts allows the applicator to reach the desired thickness to fill in low areas, build up slope, and provide insulation.

SPF has a closed-cell structure that makes it water resistant. It must be protected by elastomeric coatings or other coverings (such as aggregate) to prevent ultraviolet-induced surface degradation. Such coverings can also be used for other purposes, including inhibiting moisture vapor transmission, enhancing the aesthetics of the system, increasing the impact and abrasion resistance of the system, and achieving flammability and code requirements.

Find a Contractor

Tired of labor problems and low profit margins? Make more $$ spraying coatings with Conklin Roofing Systems! Patton Services | (309) 303-3128 | rpatton55@comcast.net | http://www.whiteroofingsystems.com


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