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How much weight is added by applying spray polyurethane foam roofing to my existing deck/roof system?

April 26, 2017added deck existing foam polyurethane roof Roofing spray weight

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How much weight is added by applying spray polyurethane foam roofing to my existing deck/roof system?

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The weight of a spray polyurethane foam roof is determined by its thickness. Typically one (1″) inch weighs less than ½ pound per square foot installed.