Spray Polyurethane Foam (SPF) is a popular roofing material known for its excellent insulation properties and durability. It’s a liquid that expands into a foam, sealing gaps and creating a continuous, waterproof barrier. This makes SPF great for energy efficiency, as it reduces heat loss and prevents air leaks, often lowering heating and cooling bills. It also adheres well to most surfaces, making it versatile for various roof types. One downside is that SPF can be sensitive to UV light and weather without a protective coating, so regular maintenance is needed to ensure longevity. Problems typically arise from improper installation, such as uneven application or poor curing, which can lead to cracks or soft spots.
You can check your SPF roof by looking for signs like discoloration, peeling coatings, or soft areas that might feel spongy underfoot. If you notice any of these, it's essential to address them sooner rather than later to avoid leaks or structural damage. Safely inspect from a ladder or by walking gently on the roof if it’s safe and recommended. If you're unsure about what you see, or if the foam feels brittle or heavily damaged, it’s best to call a roofer experienced with SPF systems. When discussing your roof with a contractor, ask about the type of protective coating they recommend and how often it should be reapplied. Also, inquire about their process for checking and maintaining foam thickness, which is critical for performance and warranty compliance.