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Cathedral Ceilings

Cathedral ceilings require vent openings at both eave and peak. Standard batts require stapling facing flanges to framing; R-30C and R-38C Thermal Batts are designed to friction-fit without stapling. Batts should be installed to provide minimum 1” ventilation passageway between the roof deck and insulation. Cathedral ceilings require an air barrier, such as gypsum board to control air leakage. Seal all penetrations to avoid condensation.

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