What is the R value of drywall?
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Total R-Value of Composite WallMaterial R-Value (ft2 o Fh / BTU) 1/2 inch Gypsum Board (Drywall or plasterboard)0.45Wood Siding, 1/2 inch0.81Plywood, 3/4 inch0.94Insulating sheathing, 3/4 inch2.068 more rows
2023-05-31 10:33:03
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Total R-Value of Composite WallMaterial R-Value (ft2 o Fh / BTU) 1/2 inch Gypsum Board (Drywall or plasterboard)0.45Wood Siding, 1/2 inch0.81Plywood, 3/4 inch0.94Insulating sheathing, 3/4 inch2.068 more rows