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 Index-ASTM 84 20
Smoke Development-ASTM 84 15
Fire Rating-NFPA Spec 101 Class A/Class 1
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.