Showing results 1 - 4 of 4
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Flat roof with cavity spray foam plus loose-fill insulation and gypsum board thermal barrier.
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Sloped roof with cavity spray foam insulation sprayed on underside of roof deck and covered with sprayed-on thermal or ignition barrier coating.
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The soffit dam and baffle allow air to flow through the vents without disturbing the insulation covering the top plates
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Wrong: Closed-cell spray foam roof insulation was not thick enough to meet IRC levels so the foam surface is colder than the dew point of the interior air and condensation formed on surface of the foam