ULTIMA-foil (500 sf roll) - Breathable (perforated) (4 ft X 125 ft)

Breathable 500 square feet roll
Industrial/Commercial NO-TEAR radiant barrier

Ultima-foil 500 sf breathable radiant barrier

lifetime warranty seal

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Retail Price: $114.50
Sale Price: $79.00
You Save: $35.50 (31 %)
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This radiant barrier is designed & approved for BUILDING related applications for use in both residential & commercial structures.

**See below or click for Detailed Description and Technical Specifications.

Detailed Description

radiant barrier cross section

Is not affected by oxidation - read more about aluminum oxidation here.

RadiantGUARDĀ® Ultima-foil radiant barrier is an aluminum radiant barrier that PASSES the current required ASTM fire test (ASTM E84-10 using the E2599 mounting method) for building materials. For more information, please see our E84-10 & E2599 Fire Test page.

RadiantGUARDĀ® Ultima-foil radiant barrier is

  • a double-sided, multi-layered radiant barrier approximately 6.5 mils in thickness (6.5 thousandths of an inch / .0065 inches)

  • durable and designed to hold staples without tearing,

  • available in both a perforated (breathable) version and a solid (non-breathable vapor barrier) version (need advice on whether you need perforated or solid version?)

  • Class A / Class 1 fire rated,

  • is Made In The USA, and

  • available in both a 500 square feet and 1,000 square feet roll size (48" wide):

    • 500 sf roll shipping weight is 15 lbs

    • 1,000 sf roll shipping weight is 28 lbs

Interested in volume pricing on pallet quantities (48,000 square feet) or our Distributor Program?  Please view this information to request additional information.

roll standing


RadiantGUARD® Benefits:

  • Reflects 97% of the radiant heat

  • Class A / Class 1 Fire Rating

  • Non-toxic / non-carcinogenic

  • Fiber free

  • Does not require protective clothing or respirators to install

  • Durable and lightweight

  • Not affected by moisture or humidity

  • Easy to install and maintenance free

  • Made in the USA

  • Lowers heating and cooling costs year round

Detailed RadiantGUARD® Radiant Barrier Specifications


RadiantGUARD® Ultima-foil Technical Specifications

Double-sided reflective ALUMINUM with polyethylene woven reinforcement
Thickness 6.5 mils (0.0065 of an inch)
Weight 28 lbs per 1,000 sf
Tensile/Tear Strength Machine direction: 80.4 lb/in width
Cross direction: 65.4 lb/in width
(ASTM D882)
Pliability 70°F ± 5°F & 50 ± 5% Relative Humidity
No Cracking or Delamination
(ASTM C1313)
Adhesive Performance 180°F ± 5°F & 50% Relative Humidity
No Bleeding or Delamination
(ASTM C1313)
Corrosivity 100% humidity at 71°C ± 2°C for 7 days
(ASTM D3310-00)
Resistance to Fungi PASS No Growth
(ASTM C1338-00)
Fire Rating
Flame Spread
Smoke Development
Fire Rating: Class A / Class 1
Flame Spread Test: 0
Smoke Development: 10
(ASTM E84-10 with ASTM E2599)
Permeance: Perforated version: 8.5 perms
Solid vapor barrier version: (.02 perms)
(ASTM 96-00)
Thermal Properties Reflectivity: 97%
Emissivity: 3%
(ASTM C1371-98)

All RadiantGUARD® radiant barriers meet the Standard Specifications for Sheet Radiant Barriers for Building Construction Applications ASTM C1313 and the State of California Insulation Standards.

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