Spray polyurethane foam (SPF) can provide an excellent insulating and weatherproofing augmentation to metal buildings. Polyurethane foam forms an integral bond with the metal building surface conforming to irregular surface profiles and providing an effective air seal. Spray polyurethane foam can successfully be applied to most metal building surfaces and components.
Original Article Source Credits: Spray Polyurethane Foam Alliance , https://www.sprayfoam.org/
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Link to Original Article: https://www.sprayfoam.org/content.asp?contentid=382