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Proudly Canadian Owned & Operated since 1964 🍁
Proudly Canadian Owned & Operated since 1964 🍁

Insulation

Explore our selection of fiberglass insulation, acoustic insulation, exterior insulation, styrofoam insulation, & more at Griff Building Supplies.

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  • Foam Backer Rod for Gaps/Joints (Sold per Foot)
    $0.05 - $0.40
    $0.05 - $0.40
    $0.05 - $0.40
    $0.05

    Foam Backer Rod for Gaps/Joints (Sold per Foot)

    Powerhouse

    This foam backer rod effectively fills large cracks, gaps, and joints to create a smooth, even surface for sealant application. Ideal for expansion...

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    $0.05 - $0.40
    $0.05 - $0.40
    $0.05 - $0.40
    $0.05
  • 3-1/2" x 75' Sill Plate Gasket
    $5.99 - $5.99
    $5.99
    $5.99 - $5.99
    $5.99

    3-1/2" x 75' Sill Plate Gasket

    Powerhouse

    High-performance sill gasket that helps seal all joints and junctions between the structural components. It fills the gap between the sill plate an...

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    $5.99 - $5.99
    $5.99
    $5.99 - $5.99
    $5.99
  • Certainteed fiberglass batt insulation R28 by 15 inch on center for 2 by 6 wood framing. 50 square feet coverage per bag.
    Certainteed fiberglass batt insulation R28 by 15 inch on center for 2 by 6 wood framing. 50 square feet coverage per bag.
    $62.99 - $62.99
    $62.99
    $62.99 - $62.99
    $62.99

    R28 x 15" O/C Fiberglass Insulation for Wood Framing (50 Sqft per bag)

    Certainteed

    R-28 Pink Fiberglass Insulation 15-inch x 47-inch x 8.5-inch. For cathedral ceilings with 16" on center spacing. Coverage: 50 square feet per bag.

    $62.99 - $62.99
    $62.99
    $62.99 - $62.99
    $62.99
  • Certainteed fiberglass batt insulation for 2 by 6 wood framing with 15.25 inch spacing. Covers 68.5 square feet per bag.
    Certainteed fiberglass batt insulation for 2 by 6 wood framing with 15.25 inch spacing. Covers 68.5 square feet per bag.
    $64.95 - $64.95
    $64.95
    $64.95 - $64.95
    $64.95

    R20 x 15" O/C Fiberglass Insulation for Wood Framing (68.5 Sqft per bag)

    Certainteed

    R-20 Fiberglass Insulation 15-inch x 47-inch x 6-inch. For 2"x6" walls with 16" on center stud spacing. Coverage: 68.50 square feet per bag.  

    $64.95 - $64.95
    $64.95
    $64.95 - $64.95
    $64.95
  • Certainteed fiberglass batt insulation for 2 by 4 wood framing with 15.25 inch on center. Covers 58.75 square feet.
    $53.95 - $53.95
    $53.95
    $53.95 - $53.95
    $53.95

    R14 x 15" O/C Fiberglass Insulation for Wood Framing (58.75 Sqft per bag)

    Certainteed

    R-14 Fiberglass Insulation 15-inch x 47-inch x 3.5-inch. For 2"x4" walls with 16" on center stud spacing. Coverage: 58.75 square feet per bag.  

    $53.95 - $53.95
    $53.95
    $53.95 - $53.95
    $53.95
  • 7-1/2" x 75' Sill Plate Gasket
    $11.49 - $11.49
    $11.49
    $11.49 - $11.49
    $11.49

    7-1/2" x 75' Sill Plate Gasket

    Powerhouse

    High-performance sill gasket that helps seal all joints and junctions between the structural components. It fills the gap between the sill plate an...

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    $11.49 - $11.49
    $11.49
    $11.49 - $11.49
    $11.49
  • 5-1/2" x 75' Sill Plate Gasket
    $8.84 - $8.84
    $8.84
    $8.84 - $8.84
    $8.84

    5-1/2" x 75' Sill Plate Gasket

    Powerhouse

    High-performance sill gasket that helps seal all joints and junctions between the structural components. It fills the gap between the sill plate an...

    View full details
    $8.84 - $8.84
    $8.84
    $8.84 - $8.84
    $8.84