ThermaCal® Wall Specs

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      Why ThermaCal® Wall?

      Designed to add insulation value to the outside of exterior sidewalls while serving as a nailable base for exterior sidewall coverings,* ThermaCal® Wall Exterior Wall Insulation Panels help reduce heat and cold drive into the occupied/conditioned space. They can also help reduce associated energy costs and meet the increased R-value energy code requirements being adopted in certain climate zones. ThermaCal® Wall Panels attach to structural exterior sidewalls and can be fastened to outside wall sheathing, metal, or masonry walls.

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      Insulates Exterior Walls

      Helps reduce heat and cold drive into the occuied/conditioned space through exterior side walls
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      Reduced Heat Loss

      Exclusive tongue-and-groove polyiso foam (8' [2.44 m] sides only) minimizes heat loss up through the panel joints
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      Fewer Hassles

      Machined construction with cut-back sheathing (8' [2.44 m] sides) allows for precision fit and clearance for sheathing expansion
      • Continuous Insulation:  Insulating only the cavity wall area leaves up to 25% of the wall area under insulated by studs, creating a thermal bridge. ThermaCal® Wall Panels help eliminate thermal bridging by covering the studs while adding continuous insulation to the rest of the wall.
      • Versatility:  Can be used on residential or commercial exterior sidewall applications without the need for interior alterations.
      • Sheathing Configurations Available:  7 /16" (11.1 mm) OSB nailing surface (standard); optional 5 /8" (15.9 mm) and 3 /4" (19.1 mm) OSB or plywood. Fire-treated options also available. Contact GAF for more information.
      • Optional Polyiso Thicknesses Available:  Contact GAF for additional information.
      *Note: ThermaCal® Wall Panels are NOT structural. They can be used with most exterior sidewall coverings that allow attachment to sheathing only and should NOT be used with heavier exterior sidewall coverings that require attachment to studs. Always consult the exterior sidewall covering manufacturer for acceptable substrates and attachment requirements. Do NOT install EIFS (Exterior Insulation Finishing Systems) over ThermaCal® Wall Panels.
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      Get automatic Lifetime Protection on your entire GAF roofing system

      When you install any GAF Lifetime Shingle and at least 3 qualifying GAF accessories, you'll automatically get a Lifetime limited warranty on your shingles and all qualifying GAF accessories*.
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      Where to buy

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