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What R value do I need for attic 2024?
Questioner:Charlotte Gonzalez 2023-05-28 14:44:57
The most authoritative answer in 2024
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Charlotte Jackson——Studied at the University of Johannesburg, Lives in Johannesburg, South Africa.
Recommended insulation levels for retrofitting existing wood-framed buildings
Zone | Add Insulation to Attic | Uninsulated Attic | Existing 3-C4 Inches of Insulation | 3R30 to R60R25 to R384R38 to R60R385 to 8R49 to R60R38 to R493 more rows
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