Technical Info & Specs

How Strong is this Radiant Barrier Foil?

Original Perforated WareHouseFoil™

Even though our product can easily be cut with a knife, once it is in place it will not tear, rip or sag. You can staple one end, pull the foil across a section, staple the other end, and then fill in the install with just a few more staples. This equates to a faster, virtually hassle-free installation. This product will never sag or fall down due to age and/or windy conditions, this product is made to last. This is not kitchen foil; kitchen foil is thin and will tear very easily if applied in an attic, and some kitchen foil is not pure aluminum, WarehouseFoil™ is 99.5% pure aluminum – this is the best radiant barrier you can buy.


For technical specs on any product other than the Original WareHouseFoil™ Radiant Barrier Foil (heavyweight perforated aluminum product), contact us. All testing done via: UNITED STATES TESTING COMPANY, INC.

Product double-sided (single sided foil radiant barrier also available), reflecting, 99% pure aluminum foil with inner woven polyethylene scrim
Weight 28.6lb per 1,000 square foot roll +/- 2%
Thickness 5 mils thick (this is about the thickness of a business card or camping tarp)
Tensile Strength test method ASTM D-828
Machine Direction 83.7lb/in width
Cross Direction 70.1lb/in width
Flame Spread 10 ASTM E84
Smoke Development 10 under ASTM E84 testing
Water Vapor Permeability 72g/m 2/24hr; 14 perms ASTM E96
Temperature Range -76°F to 212°F ASTM C411
Thermal Properties emissivity 0.03 (reflects 97% of infrared heat) ASTM E408
Delamination All WareHouseFoil™ radiant barrier products are manufactured using PE lamination welding, not adhesives; the product layers are actually fused together so delamination is NEVER an issue with our products.

Double-sided (DS) foil available in both perforated (breathable) and solid (vapor barrier) versions.

Single-sided (SS) foil available in both perforated (breathable) and solid (vapor barrier) versions.

Foil + White Vinyl side available in a perforated (breathable) version in both 48″ wide and 60″ wide.