For attached garages, look for triple-layer steel with polyurethane foam and R-12 or higher. Weather sealing at the perimeter and a quality bottom astragal reduce drafts next to slab frost.
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For attached garages, look for triple-layer steel with polyurethane foam and R-12 or higher. Weather sealing at the perimeter and a quality bottom astragal reduce drafts next to slab frost.
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