Skip to content

Insulation

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

Filters

  • PowerWool Rigid Mineral Wool Exterior Insulation 2-ft x 4-ft
    $83.65 - $95.29
    $83.65 - $95.29
    $83.65 - $95.29
    $83.65

    PowerWool Rigid Mineral Wool Insulation 2-ft x 4-ft

    Powerhouse

    PowerWool RigiBoard ONE is a continuous, non-structural and noncombustible rigid mineral wool insulation sheathing board designed to increase the e...

    View full details
    $83.65 - $95.29
    $83.65 - $95.29
    $83.65 - $95.29
    $83.65
  • 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...

    View full details
    $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...

    View full details
    $5.99 - $5.99
    $5.99
    $5.99 - $5.99
    $5.99
  • 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...

    View full details
    $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