R13 Attic Insulation

Higher numbers indicate insulation that is more effective.

R13 attic insulation.

Owens corning ecotouch r 15 30 sq ft single faced fiberglass roll insulation 15 in w x 24 ft l item 821444. R value is a measure of insulation s ability to resist heat traveling through it. Most manufacturers produce an r 13 batt that fits into a 2 by 4. Thermal values range from a low of r 4 to a high of r 45.

Owens corning r 13 ecotouch pink kraft faced insulation fiberglass insulation batt 16 in. The r value of insulation indicates its thermal resistance to the flow of heat. Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation. The higher the r value the better the thermal performance of the insulation.

Johns manville r 13 40 sq ft single faced fiberglass roll insulation with sound barrier 15 in w x 32 ft l item 31116. For pricing and availability. Find your zone on the map and then use the chart to determine the level of insulation you need to properly insulate your attic walls floors and crawlspaces. The label on insulation gives its r value.

However the r value of insulation also depends on proper installation to avoid compressing it. The table below shows what levels of insulation are cost effective for different climates and locations in the home.