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What coatings should be used over different roof substrates?

April 26, 2017coatings different roof substrates Used

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What coatings should be used over different roof substrates?

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Asphaltic coatings can be used over asphaltic and coal tar substrates. Non-asphaltic coatings can be used over asphaltic as well as non-asphaltic substrates. Non-asphaltic coatings include: acrylic, urethane, silicone, Hypalon®, butyl and polyurea. Care must be exercised in using solvent borne coatings over non-asphaltic substrates, as the solvent may adversely affect the integrity of the roofing materials. Ultimately, it is important to follow the manufacturer’s directions and cautions when applying any roof coating.