R-Value
insulation
A measure of thermal resistance — how well a material resists heat flow. Higher R-value = better insulation. Code minimums vary by climate zone: attics typically R-38 to R-60, walls R-13 to R-21.
insulation
A measure of thermal resistance — how well a material resists heat flow. Higher R-value = better insulation. Code minimums vary by climate zone: attics typically R-38 to R-60, walls R-13 to R-21.
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