Showing results 1 - 4 of 4
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Cross section showing points of reinforcement and attachment to secure the chimney to the roof and ceiling joists.
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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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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