Read This Before You Buy: The chart shows the R-value of this insulation. R means resistance to heat flow. The higher the R-value, the greater the insulating power. Compare insulation R-values before you buy. There are other factors to consider. The amount of insulation you need depends mainly on the climate you live in. Also, your fuel savings from insulation will depend on climate, the type and size of your house, the amount of insulation already in your house, and your fuel use patterns and family size. If you buy too much insulation, it will cost you more than what you'll save on fuel. To get the marked R-value, it is essential that this insulation be installed properly.

Product Composition

Core - 1/4" Thick Microfoam polypropylene

Face - Reinforced, high purity aluminum foil

Weight for this product is .86 ounce per square foot.

Roll Size	4' wide x 125' long 6' wide x 75' long
Surface Emissivity	.03
Flame Spread / Smoke Spread – AST M E84 - Foil Scrim Exposed - Foil White Exposed	15/35 25/100
Puncture Resistance-psi, ASTM D 3420	90
Tear-lbs., ASTM D 1922	1.9 - 2.8
Water Vapor Transmission-grains/hr sqft, ASTM E96	.005
Water Absorption lbs/sqft, FTMS 101B, Method 4035	.0003
Fungus Resistance, mold growth-Mil E 8261A	None
Useable Temperature-deg F	-150 to +200
R - MicroFoil Heat Flow Resistance, ASTM C236 Hot box test	deg. F sqft/Btu
Reflectivity	.97

MICROFOIL

R 14 downward with 2x6 wall cavity with 5/8" drywall one side and 5/8" OSB other side
R 7.4 as part of 2x4 wall cavity horizontal with 1/2" gypsum 1 side and 1/32" metal other side

R value is a measure of thermal performance, the higher the R value the greater the insulating value.