Spray-applied Polyurethane Foam comprises a blend of two components: isocyanate and polyol. These elements are conveyed through a proportioner, where they are heated and pumped separately to the spray gun. Upon mixing at the spray gun, they are dispensed onto the substrate.
Given its application in liquid form, SPF transforms into a cohesive, seamless structure as it solidifies, providing remarkable stability. To ensure proper adhesion to the substrate in compliance with building codes, a clean surface free from contaminants like oil is necessary for SPF application.
Additionally, the application of a protective elastomeric top coat (including Acrylics, Silicones, or Polyureas) is crucial, typically administered through spraying. Alternatively, in certain cases, application using hand or power rollers is feasible.
Foam roofing boasts numerous advantages over conventional methods, which can be further explored throughout this platform.
SPF is Seamless, Flexible, Lightweight, insulating and sustainable. SPF is Applied as a liquid to any surface with 1/16th the weight and lasts 5-15 yrs longer then a traditional roof.
Sprayed Polyurethane Foam (SPF) is highly effective for waterproofing due to its composition of closed cells, acting as a barrier against moisture infiltration. This minimizes dew point issues, which can lead to condensation within structures and are a primary cause of building deterioration.
Even if the top coat of an SPF roofing system is damaged, the underlying foam prevents leaks. For instance, despite severe hail damage to the Superdome in New Orleans, where thousands of hairline cracks appeared in the top coat, no leaks occurred for over a decade until repairs were made.
In the event of penetration through the foam layers, water infiltration is confined to the affected area. Small penetrations can be easily repaired with elastomeric caulk, restoring system integrity.
SPF application allows for easy adjustment of thickness to ensure proper drainage, reducing the risk of water ponding and associated weight load issues commonly found with conventional roofing systems.
The density of SPF plays a crucial role in both its strength and thermal resistance. Simply put, higher density equals greater strength and a higher R-value. Most SPF roofs typically range from about 2.5 to 3 pounds per cubic foot.
For instance, a three-pound density foam boasts a compressive strength of approximately 50 psi and an R-value of 7.14 when installed, and 6.86 when aged (though these figures may slightly vary depending on the manufacturer).
Here's a real-life example of SPF's insulation prowess: In a school district in southern Texas, newly installed relocatable classroom buildings were experiencing high air conditioning usage during the late spring and early fall. After installing foam roofs—consisting of three-pound density foam, 1.5 inches thick, with an acrylic coating system—the air conditioner usage dropped significantly to just fifteen minutes per hour. This represents a remarkable fifty-eight percent reduction in energy costs.
Upgrade to Sprayed Polyurethane Foam (SPF) roofing and watch your savings soar! Whether it's a new construction or revamping an older roof, SPF brings numerous benefits.
Say goodbye to additional expenses caused by common roofing issues—SPF roofs eliminate seams that can split and allow water ingress. Perfect for complex roof shapes like saw tooth designs, SPF outshines traditional materials.
And let's talk insulation—SPF is unrivaled, keeping your building cozy while slashing energy costs. With minimal maintenance required, SPF roofs promise longevity, making it a one-time investment for lasting peace of mind. Make the switch to SPF roofing and start saving today!
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