Attic Insulation: Materials, R-Values, Installation Methods, and Best Practices for Energy Efficiency
Attic Insulation Materials Fiberglass batt insulation is the most common attic insulation material, available in standard widths to fit between joist spacing. Batts are manufactured in R-values from R-11 to R-49 depending on thickness. The effectiveness of batt insulation depends on proper installation with full contact with the air barrier, no gaps or compression, and […]
