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What is Spray Polyurethane Foam Roofing?

foam polyurethane Roofing spray
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What is Spray Polyurethane Foam Roofing?

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SPF is a closed cell roofing material formed by the combination of two liquid components. When these two materials meet in the mixing gun, they immediately expand 20-30 times their volume. The roof is sprayed to the desired thickness, usually 1-2 inches. The entire roof is sprayed to form a seamless monolithic surface including flashing, penetrations and parapet walls; this eliminates seams and cold joints, the major source of roof leaks.

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