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Ultima-FOIL® radiant barrier 1,000 sf (breathable)


Industrialized aluminum foil radiant barrier that reflects/blocks 97% of the radiant heat.

Roll is 4 feet wide and 250 linear feet long.

Learn how this ALUMINUM FOIL radiant barrier differs from our METALIZED radiant barrier.

  • RadiantGUARD® Ultima-FOIL radiant barrier

    • is a double-sided, multi-layered aluminum radiant barrier approximately 6.5 mils in thickness (6.5 thousandths of an inch / .0065 inches),
    • reflects (blocks) 97% of the radiant heat that strikes its surface across an air space,
    • is an industrialized-strength lightweight yet durable attic insulation designed to hold staples without tearing (much more durable than products found in Lowes and Home Depot),
    • is available in both a perforated (breathable) version and a solid (non-breathable vapor barrier) version (view our Buyers Guide to determine which version you need)
    • is available in 48" width rolls in both a 500 square feet and 1,000 square feet size
      • 500 sf roll shipping weight is 17 lbs
      • 1,000 sf roll shipping weight is 36 lbs
    • is non-toxic, non-carcinogenic, fiber-free, and does not require protective clothing or respirators to install,
    • is easy to install and maintenance free,
    • is not affected by moisture or humidity,
    • is proud to be covered by a lifetime warranty,
    • and lowers heating and cooling costs year round.
  • RadiantGUARD®Technical Specifications