Our Flex Foam is a continuous insulation solution that reduces radiant heat transfer for superior performance and a better alternative to traditional foam roll, especially in hot-humid climates. Perforated to allow vapor transmission and coated for long term performance and corrosion resistance, the Flex Foam Low-e aluminum reinforced facing reduces up to 96% of radiant heat transfer. This foil foam insulation is an effective continuous insulation solution that works to reduce thermal bridging to keep homes cooler in the summer and warmer in the winter for greater efficiency and comfort. Use alone or as part of a system with ¾” enclosed air space and reflective insulation companion products AA2 or M-Shield to gain R5.7 for the assembly.

This foil foam insulation is an effective continuous insulation solution that works to reduce thermal bridging to keep homes cooler in the summer and warmer in the winter for greater efficiency and comfort.

Use alone or as part of a system with ¾” enclosed air space and reflective insulation companion products AA2 or M-Shield to gain R5.7 for the assembly.

Key Benefits & Innovative Features for Your Build

  • ½” Closed Cell Polyethylene Foam
  • Low-emittance Reinforced Aluminum Facing
  • High Quality Protective Facing
  • Corrosion Resistant
  • Reduces Thermal Bridging for Continuous Insulation
  • Perforated to Allow Vapor Transmission
  • 24” or 48” 250 SF Rolls
  • 1 Roll = 8 Sheets of Foam Board Insulation
  • Ideal for Retrofit and New Construction
  • National Network of Insulation Distributors and Contractors
  • ½” Reflective Foam Insulation
  • Provides R-1.6 Continuous Insulation
  • Provides R-4.5 used with ¾” enclosed cavity air space
  • R-4.5 with ¾” enclosed cavity air space provides 35% Continuous Insulation
  • Can Be Used Alone or as part of a Wall System
  • Ideal for use with Masonry Block Construction
  • Perforated to Allow Vapor Transmission
  • Ideal for Hot-Humid Climate Zones
  • Reflects 96% of Radiant Heat
  • Easy to Install
  • Reduces Labor Costs
  • Saves Energy & Monthly Utility Costs
Roll Width 24″ 48″
Diameter 23″ 23″
Lineal Footage 62.5′ 62.5′
Coverage 125 Sq Ft 250 Sq Ft
Weight 14 lbs 28 lbs
Test Method Description Results
ASTM E96 Water Vapor Permeance 1.5
ASTM E84 – in accordance with mounting method E2599 Flammability – CLASS A
   – Flame Spread ≤ 25
   – Smoke Developed ≤ 25
ASTM C1258 Humidity Resistance Pass
ASTM C1258 Corrosivity None
ASTM C1224 – Section 9 Adhesive Performance Adhesive Performance Pass
   – Bleeding None
   – Delamination None
   – Pliability No cracking or delamination
ASTM C1338 Mold & Mildew
   – White Side Pass
   – Foil Side Pass
ASTM C1371 Thermal Emittance ≤ 0.1
ASTM E903 Reflectivity 96%

Product Compliances

  • Meets or exceeds ASTM C1224, the Standard Specification of Reflective Insulation
  • Meets International Building, Residential and Energy Codes
  • Meets Florida Building, Residential and Energy Conversation Codes

Technical Documents

  • Masonry Wall with M-Shield™  or AA2 Vapor Shield and Continuous Flex Foam Board Insulation [DWG]

    28 KB | ZIP





  • Masonry Wall with M-Shield™  or AA2 Vapor Shield™ and Continuous Flex Foam Board Insulation [PDF]

    69 KB | PDF





  • Masonry Wall with M-Shield™  or AA2 Vapor Shield™ and Continuous Flex Foam Board Insulation [RVT]

    1,009 KB | ZIP





  • Masonry Wall with VR Plus Shield™ on Metal Framing and Continuous Flex Foam Insulation [DWG]

    31 KB | ZIP





  • Masonry Wall with VR Plus Shield™ on Metal Framing and Continuous Flex Foam Insulation [PDF]

    73 KB | PDF





  • Masonry Wall with VR Plus Shield™ on Metal Framing and Continuous Flex Foam Insulation [RVT]

    1,012 KB | ZIP





  • Flex Foam on CMU with Wood Furring [DWG]

    69 KB | PDF





  • Flex Foam on CMU with Wood Furring [PDF]

    69 KB | PDF




  • Flex Foam on CMU with Wood Furring [RVT]

    69 KB | PDF





  • Flex Foam on CMU [DWG]

    69 KB | PDF





  • Flex Foam on CMU [PDF]

    69 KB | PDF





  • Flex Foam on CMU [RVT]

    69 KB | PDF





  • Flex Foam Specification Sheet

    10.58 MB | PDF





  • Flex Foam Application Sheet

    18.29 MB | PDF





  • Flex Foam Installation Sheet

    902.43 KB | PDF





  • Engineering Report Flex Foam with M-Shield™  or AA2 and 0.75 or 0.875 Framing

    159.24 KB | PDF





  • Engineering Report Flex Foam with 0.75 and 1.5 Framing

    201.19 KB | PDF





  • Engineering Report Flex Foam-AA2 Hybrid with 0.75 Framing Including R and U-Values

    135.60 KB | PDF





post frame building ready for reflective insulation

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We manufacture, market, and distribute high-performance reflective insulation technology and radiant barriers. Our products are sustainable and improve building performance and comfort all year round. Our reflective insulation technology is one of the fastest-growing technologies in the world and we want you to grow with us.