InfraStop® IR Radiant Barrier Foil Insulation 48" x 125'

  • 8 Mil Thickness
  • Tear-Proof
  • Class 1 / Class A Fire Rating
  • Save Money and Energy
  • Blocks 95% of Radiant Heat Transfer

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InfraStop IR® Radiant Barrier is the industry's best, metalized, double sided radiant barrier product. At 8 mils in thickness (8 thousands of an inch / .008 inches) and 33lbs. per 1000 square feet, InfraStop® IR is the thickest and heaviest industrial/construction grade radiant barrier available anywhere.

Additional Info

Additional Info

Model NumberISRBIR48125
Roll Width48 Inch
Roll Length125 Feet
Per Roll Square Foot500
Weight29.5 lbs. per 1000 square foot roll
Tensile / Tear Strengh (ASTM D2261)Length 13.23 / Width 13.98 Pounds Force
Pliability (ASTM C1313-05)70 degrees +/- 5 degrees F & 50% Relative Humidity - No Cracking or Delamination
Adhesive Performance (ATM 1313-05)180 +/- 5 degrees F & 50 % Relative Humidity - No Bleeding or Delamination
Flame & Smoke Spread (ASTM E84-10)Class A / Class 1 - 0 Flame Spread, 5 Smoke Development
Resistance to Fungi (ASTM C1338-08)Pass - No Growth
Permiability (ASTM E96-05)6.29 Perms
Reflectivity (C1371-04a)95%
Emissivity (ASTM C1371-04a)0.05



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InfraStop® Specs

Testing & Certifications
All tests on InfraStop® Insulation products are performed at either nationally
approved independent laboratories or at leading universities. Tests are
performed to current American Society of Testing and Materials (ASTM)
Standards when a standard exists.

Testing results on our Reflective Insulation (Reflective/Bubble/Bubble/
Reflective) product are listed below. For any additional testing information
for this product (or any other), please feel free to call or contact us.

Product Standards
Resistance to fungi or bacteria: InfraStop® does not promote the growth of
fungi or bacteria.

Specification compliance: InfraStop® is covered under the Federal Minimum Standards Code for reflective insulation (HH-I-1252B) for all H.U.D. and F.H.A. projects.

Testing and Certification Documents
  • Thermal Performance ASTM C1363
  • Thermal Performance of Wall Systems ASTM C1363
  • Thermal Performance ASTM C335
  • Thermal Performance of Crawl Space ASTM C1363
  • Hot Surface Performance ASTM C411
  • Heat Transfer (Heat Flow Up, Down, Horizontal) ASTM C1363
  • Thermal Performance of InfraStop™ and Fiberglass in Walls ASTM C1363
  • Heat Transfer of Air-Handling Ducts with InfraStop™
  • Flame Spread and Smoke Density ASTM E84
  • Fungus Resistance Mil-Std 810B Method 508
  • Pliability Test
  • Sound Absorption Test ASTM C423-90a and ASTM E795-83
  • Sound Transmission Loss ASTM E90-90 and ASTM E413-87
  • Water Vapor Transmission ASTM E96
  • Tensile Strength
  • Emittance Testing
  • Thermal Performance of Water Heater Jackets
  • Intertek: Surface Burning Characteristics of Building Materials ASTM E84-08
    (Taped Joint Detail) Test Report # 3166908SAT-012
  • Intertek: Surface Burning Characteristics of Building Materials ASTM E84-08
    (Unslit) Test Report # 3166908SAT-011
  • R&D Services: Resistance to the Growth of Fungi ASTM C1338-00 Test Report
    # RD072713FR
  • State of California
  • State of California Licensed Insulation Manufacturer
  • State of Minnesota: Filed with Minnesota Insulation Standards
  • State of Wisconsin: Wisconsin Material Approval, Safety and Buildings
    Division Approval # 920088-1
  • R&D Services Emittance Testing
  • R&D Services: Physical Properties Sheet Width, Length, Pliability, Water Vapor
    Permanence and Aged Water Vapor Permanence
  • R&D Services: Water Vapor Transmission Test ASTM-E96 (Dessicant Method has a Shopper Approved rating of 4.8/5 based on 561 ratings and reviews.