R13 Attic Insulation

The r value of insulation indicates its thermal resistance to the flow of heat.
R13 attic 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. Thermal values range from a low of r 4 to a high of r 45. Insulation level are specified by r value. Owens corning r 13 ecotouch pink kraft faced insulation fiberglass insulation batt 16 in.
The table below shows what levels of insulation are cost effective for different climates and locations in the home. 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. R value is a measure of insulation s ability to resist heat traveling through it.
10 bags model c86 view the owens corning 2x4 wall floor insulation. Standard fiberglass insulation batts or blankets provide an r value of 2 2 to 3 8 per inch of thickness. 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. Owens corning ecotouch r 15 30 sq ft single faced fiberglass roll insulation 15 in w x 24 ft l item 821444.
The label on insulation gives its r value. However the r value of insulation also depends on proper installation to avoid compressing it.