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Standard = Top quality rigid insulation.
Clearance = Discounted, limited stock.
Custom = Common configurations.*

*For a full list of our custom board configurations, please
head over to the Custom page.

Class

Thickness

  • FOAMULAR® 1000 1.5 in x 2 ft x 2 ft R-7.5 Squared Edge Insulation Sheathing
    Owens Corning™ FOAMULAR® 1000 is a high strength extruded polystyrene (XPS) insulation product designed for use in engineered applications requiring additional load-bearing capability such as under slab, concrete floors, foundations, roadways and rail beds, plaza and parking decks and cold storage installations. FOAMULAR® 1000 is comparable to STYROFOAM™ Brand HIGHLOAD 100 Insulation. This clearance item may have a minor cosmetic defect. Please contact us for more info.
    Pricing Breakdown:
    Quantity: Price Per:
    1 - 38 $44.92
  • Out of Stock
    FOAMULAR® 250 2in x 48in x 96in R-10 Scored Square Edge Insulation Sheathing (3rd Party Branded)
    Owens Corning FOAMULAR® 250 extruded polystyrene insulation is ideal for wall furring, perimeter/ foundation, cavity wall, crawlspace, pre-cast concrete, under slab, roofing systems, sheathing and other applications (Not approved for roofing). Owens Corning’s patented Hydrovac® process technology make the unique closed-cell structure of FOAMULAR® extruded polystyrene insulation highly resistant to moisture, retaining its long term R-value year after year – even following prolonged exposure to water leakage, condensation, ground-water and freeze/thaw cycling. FOAMULAR® 250 is comparable to STYROFOAM™ Brand Square Edge Insulation.

    This clearance item may have a minor cosmetic defect. Please contact us for more info.

    Pricing Breakdown:
    Quantity: Price Per:
    1 - 5 $18.81
  • Out of Stock
    FOAMULAR® 250 4 in x 4 ft x 119.125 in R-20 Squared Edge Insulation Sheathing
    Owens Corning FOAMULAR® 250 extruded polystyrene insulation is ideal for wall furring, perimeter/ foundation, cavity wall, crawlspace, pre-cast concrete, under slab, roofing systems, sheathing and other applications (Not approved for roofing). Owens Corning’s patented Hydrovac® process technology make the unique closed-cell structure of FOAMULAR® extruded polystyrene insulation highly resistant to moisture, retaining its long term R-value year after year – even following prolonged exposure to water leakage, condensation, ground-water and freeze/thaw cycling. FOAMULAR® 250 is comparable to STYROFOAM™ Brand Square Edge Insulation.

    This clearance item may have a minor cosmetic defect. Please contact us for more info.

    Pricing Breakdown:
    Quantity: Price Per:
    1-3 $50.17
  • FOAMULAR® INS SHEATHING Laminated 1 in x 4 ft x 8 ft R-5 Tongue & Groove Edge Insulation Sheathing
    Owens Corning FOAMULAR® 250 extruded polystyrene insulation is ideal for wall furring, perimeter/ foundation, cavity wall, crawlspace, pre-cast concrete, under slab, roofing systems, sheathing and other applications (Not approved for roofing). Owens Corning’s patented Hydrovac® process technology make the unique closed-cell structure of FOAMULAR® extruded polystyrene insulation highly resistant to moisture, retaining its long term R-value year after year – even following prolonged exposure to water leakage, condensation, ground-water and freeze/thaw cycling. FOAMULAR® 250 is comparable to STYROFOAM™ Brand Square Edge Insulation.

    This clearance item may have a minor cosmetic defect. Please contact us for more info.

    Pricing Breakdown:
    Quantity: Price Per:
    1 - 14 $12.54
  • Out of Stock
    FOAMULAR® 250 3 in x 4 ft x 120 in R-15 Squared Edge Insulation Sheathing
    Owens Corning FOAMULAR® 150 extruded polystyrene insulation is ideal for wall furring, perimeter/ foundation, cavity wall, crawlspace, pre-cast concrete, under slab, roofing systems, sheathing and other applications (Not approved for roofing). Owens Corning’s patented Hydrovac® process technology make the unique closed-cell structure of FOAMULAR® extruded polystyrene insulation highly resistant to moisture, retaining its long term R-value year after year – even following prolonged exposure to water leakage, condensation, ground-water and freeze/thaw cycling. FOAMULAR® 150 is comparable to STYROFOAM™ Brand Square Edge Insulation.

    This clearance item may have a minor cosmetic defect. Please contact us for more info.

    Pricing Breakdown:
    Quantity: Price Per:
    1 - 10 $36.88
  • Out of Stock
    FOAMULAR® 250 1.5 in x 24.675 in x 8 ft R-7.5 Squared Edge Insulation Sheathing
    Owens Corning FOAMULAR® 250 extruded polystyrene insulation is ideal for wall furring, perimeter/ foundation, cavity wall, crawlspace, pre-cast concrete, under slab, roofing systems, sheathing and other applications (Not approved for roofing). Owens Corning’s patented Hydrovac® process technology make the unique closed-cell structure of FOAMULAR® extruded polystyrene insulation highly resistant to moisture, retaining its long term R-value year after year – even following prolonged exposure to water leakage, condensation, ground-water and freeze/thaw cycling. FOAMULAR® 250 is comparable to STYROFOAM™ Brand Square Edge Insulation.

    This clearance item may have a minor cosmetic defect. Please contact us for more info.

    Pricing Breakdown:
    Quantity: Price Per:
    1 - 16 $9.41
  • Out of Stock
    FOAMULAR® 250 3 in x 4 ft x 120 in R-15 Squared Edge Insulation Sheathing
    Owens Corning FOAMULAR® 150 extruded polystyrene insulation is ideal for wall furring, perimeter/ foundation, cavity wall, crawlspace, pre-cast concrete, under slab, roofing systems, sheathing and other applications (Not approved for roofing). Owens Corning’s patented Hydrovac® process technology make the unique closed-cell structure of FOAMULAR® extruded polystyrene insulation highly resistant to moisture, retaining its long term R-value year after year – even following prolonged exposure to water leakage, condensation, ground-water and freeze/thaw cycling. FOAMULAR® 150 is comparable to STYROFOAM™ Brand Square Edge Insulation.

    This clearance item may have a minor cosmetic defect. Please contact us for more info.

    Pricing Breakdown:
    Quantity: Price Per:
    1 - 6 $24.59
  • Out of Stock
    FOAMULAR® INSULPINK®-Z 2 in X 23.875 in X 8 ft Squared Edge Insulation
    FOAMULAR® INSULPINK®-Z insulation is extremely lightweight for easy handling and provides a compressive strength of 15 psi, which meets the requirements of a vertical wall application. INSULPINK®-Z insulation provides an R-value of 5 per inch of product thickness, and outstanding resistance to moisture for long-term retention of the thermal performance.

    This clearance item may have a minor cosmetic defect. Please contact us for more info.

    Pricing Breakdown:
    Quantity: Price Per:
    1 - 11 $19.19
    12 - 48 $16.43
    49 - 95 $15.40
    96 + $14.36
  • Out of Stock
    FOAMULAR® 250 3 in x 4 ft x 120 in R-15 Squared Edge Insulation Sheathing
    Owens Corning FOAMULAR® 150 extruded polystyrene insulation is ideal for wall furring, perimeter/ foundation, cavity wall, crawlspace, pre-cast concrete, under slab, roofing systems, sheathing and other applications (Not approved for roofing). Owens Corning’s patented Hydrovac® process technology make the unique closed-cell structure of FOAMULAR® extruded polystyrene insulation highly resistant to moisture, retaining its long term R-value year after year – even following prolonged exposure to water leakage, condensation, ground-water and freeze/thaw cycling. FOAMULAR® 150 is comparable to STYROFOAM™ Brand Square Edge Insulation.

    This clearance item may have a minor cosmetic defect. Please contact us for more info.

    Pricing Breakdown:
    Quantity: Price Per:
    1 - 2 $18.44
  • FOAMULAR® 1000 1.5 in x 2 ft x 2 ft R-7.5 Squared Edge Insulation Sheathing
    Owens Corning™ FOAMULAR® 400 is a high strength extruded polystyrene (XPS) insulation product designed for use in engineered applications requiring additional load-bearing capability such as under slab, concrete floors, foundations, roadways and rail beds, plaza and parking decks and cold storage installations. FOAMULAR® 400 is comparable to STYROFOAM™ Brand HIGHLOAD 40 Insulation. This clearance item may have a minor cosmetic defect. Please contact us for more info.
    Pricing Breakdown:
    Quantity: Price Per:
    1 $21.07
  • FOAMULAR® 1000 1.5 in x 2 ft x 2 ft R-7.5 Squared Edge Insulation Sheathing
    Owens Corning™ FOAMULAR® 1000 is a high strength extruded polystyrene (XPS) insulation product designed for use in engineered applications requiring additional load-bearing capability such as under slab, concrete floors, foundations, roadways and rail beds, plaza and parking decks and cold storage installations. FOAMULAR® 1000 is comparable to STYROFOAM™ Brand HIGHLOAD 100 Insulation. This clearance item may have a minor cosmetic defect. Please contact us for more info.
    Pricing Breakdown:
    Quantity: Price Per:
    1 - 3 $59.90
  • Out of Stock
    FOAMULAR® 604 Ribbed 2 in x 2 ft x 85 in R-10 Channel Edge Insulation Sheathing
    FOAMULAR® 604 & 604 RB extruded polystyrene insulations are specially designed for use in Protected Roof Membrane Assemblies (PRMA), where the insulation is placed directly over the membrane. The compressive strength of FOAMULAR® extruded polystyrene insulation provides the integrity needed for long-term roof performance. Extruded polystyrene is the type of insulation recommended for PRMA applications. Owens Corning™ offers four specific types of FOAMULAR® extruded polystyrene insulation for this use: FOAMULAR® 404 and 604; and FOAMULAR® 404 RB and 604 RB. Both the 404 RB and 604 RB extruded polystyrene insulations feature drainage channels running the length of the panel. These are excellent extruded polystyrene products. This clearance item may have a minor cosmetic defect. Please contact us for more info.
    Pricing Breakdown:
    Quantity: Price Per:
    1 - 11 $31.07
    12 - 48 $26.61
    49 - 95 $24.93
    96 + $23.26
  • Out of Stock
    FOAMULAR® 250 3 in x 4 ft x 238 in R-15 Squared Edge Insulation Sheathing
    Owens Corning FOAMULAR® 250 extruded polystyrene insulation is ideal for wall furring, perimeter/ foundation, cavity wall, crawlspace, pre-cast concrete, under slab, roofing systems, sheathing and other applications (Not approved for roofing). Owens Corning’s patented Hydrovac® process technology make the unique closed-cell structure of FOAMULAR® extruded polystyrene insulation highly resistant to moisture, retaining its long term R-value year after year – even following prolonged exposure to water leakage, condensation, ground-water and freeze/thaw cycling. FOAMULAR® 250 is comparable to STYROFOAM™ Brand Square Edge Insulation.

    This clearance item may have a minor cosmetic defect. Please contact us for more info.

    Pricing Breakdown:
    Quantity: Price Per:
    1 - 3 $135.93
    4 - 8 $116.39
    9 - 15 $101.74
    16 + $96.05
  • Out of Stock
    FOAMULAR® LT30 2.5 in x 4 ft x 8 ft R-10 Squared Edge Insulation Sheathing
    FOAMULAR® LT30 extruded polystyrene insulation is a closed-cell insulation made using Owens Corning's exclusive Hydrovac® manufacturing process. FOAMULAR® extruded polystyrene insulation's resistance to water absorption and water vapor transmission allows it to maintain low thermal conductivity in the presence of the severe water vapor characteristics of cold storage applications. FOAMULAR® extruded polystyrene insulation is manufactured to comply with ASTM C 578. This clearance item may have a minor cosmetic defect. Please contact us for more info.
    Pricing Breakdown:
    Quantity: Price Per:
    1 - 3 $66.13
    4 - 18  $56.63
    19 - 35 $53.06
    36 +  $49.50
  • Out of Stock
    FOAMULAR® LT30 2 in x 4 ft x 8 ft R-10 Squared Edge Insulation Sheathing
    FOAMULAR® LT30 extruded polystyrene insulation is a closed-cell insulation made using Owens Corning’s exclusive Hydrovac® manufacturing process. FOAMULAR® LT30 extruded polystyrene insulation’s resistance to water absorption and water vapor transmission allows it to maintain low thermal conductivity in the presence of the severe water vapor characteristics of cold storage applications. FOAMULAR® extruded polystyrene insulation is manufactured to comply with ASTM C578.

    This clearance item may have a minor cosmetic defect. Please contact us for more info.

    Pricing Breakdown:
    Quantity: Price Per:
    1 - 5 $52.91
    6 - 24 $45.30
    25 - 47 $42.45
    48 + $39.60