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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

  • FOAMULAR® 600 2 in x 4 ft x 8 ft R-10 Squared Edge Insulation Sheathing

    FOAMULAR® 600 2 in x 4 ft x 8 ft R-10 Squared Edge Insulation Sheathing

    $89.88
    As low as $84.86/board

    Note: If your project resides in the following states, you are required to use NGX rated insulation boards which are subject to higher pricing:

    California, Colorado, Delaware, Maine, Maryland, Massachusetts, New Jersey, New York, Rhode Island, Vermont, Virginia, Washington

    Owens Corning™ FOAMULAR® 600 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® 600 is comparable to STYROFOAM™ Brand HIGHLOAD 60 Insulation.  

    Pricing Breakdown:
    Quantity:Price Per:
    1 - 47$89.88
    48 +$84.85
    Add to QuoteDetails
  • FOAMULAR® 250 2 in. x 4 ft. x 8 ft. R-10 Tongue & Groove Edge Insulation Sheathing

    FOAMULAR® 250 2 in. x 4 ft. x 8 ft. R-10 Tongue & Groove Edge Insulation Sheathing

    $53.93
    As low as $50.90/board

    Note: If your project resides in the following states, you must select NGX as your board type:

    California, Colorado, Delaware, Maine, Maryland, Massachusetts, New Jersey, New York, Rhode Island, Vermont, Virginia, Washington

    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.

    Pricing Breakdown:
    Quantity:Price Per:
    1 - 47$53.93
    48 +$50.90
    Add to QuoteDetails
  • FOAMULAR® 1000 2 in x 2 ft x 8 ft R-10 Squared Edge Insulation Sheathing

    FOAMULAR® 1000 2 in x 2 ft x 8 ft R-10 Squared Edge Insulation Sheathing

    $110.62
    As low as $104.44/board

    Note: If your project resides in the following states, you are required to use NGX rated insulation boards which are subject to higher pricing:

    California, Colorado, Delaware, Maine, Maryland, Massachusetts, New Jersey, New York, Rhode Island, Vermont, Virginia, Washington

    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.

    Pricing Breakdown:
    Quantity:Price Per:
    1 - 47$110.62
    48+$104.44
    Add to QuoteDetails
  • FOAMULAR® 250 2 in x 4 ft x 8 ft R-10 Squared Edge Insulation Sheathing

    FOAMULAR® 250 2 in x 4 ft x 8 ft R-10 Squared Edge Insulation Sheathing

    $44.00

    Note: If your project resides in the following states, you must select NGX as your board type:

    California, Colorado, Delaware, Maine, Maryland, Massachusetts, New Jersey, New York, Rhode Island, Vermont, Virginia, Washington

    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.

    Pricing Breakdown:
    Quantity:Price Per:
    1 - 23$44
    24 +$-
    Add to QuoteDetails
  • FOAMULAR® 250 4 in x 4 ft x 8 ft R-20 Squared Edge Insulation Sheathing

    FOAMULAR® 250 4 in x 4 ft x 8 ft R-20 Squared Edge Insulation Sheathing

    $94.00

    Note: If your project resides in the following states, you must select NGX as your board type:

    California, Colorado, Delaware, Maine, Maryland, Massachusetts, New Jersey, New York, Rhode Island, Vermont, Virginia, Washington

    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.

    Pricing Breakdown:
    Quantity:Price Per:
    1 - 23$94
    24 +$-
    Add to QuoteDetails
  • FOAMULAR® 150 1.5 in x 4 ft x 8 ft R-7.5 Scored Squared Edge Insulation Sheathing

    FOAMULAR® 150 1.5 in x 4 ft x 8 ft R-7.5 Scored Squared Edge Insulation Sheathing

    $39.64
    As low as $37.42/pc.

    Note: If your project resides in the following states, you must select NGX as your board type:

    California, Colorado, Delaware, Maine, Maryland, Massachusetts, New Jersey, New York, Rhode Island, Vermont, Virginia, Washington

    All-purpose foam panel insulation for masonry and other applications. Owens Corning™ FOAMULAR® 150 extruded polystyrene insulation is ideal for wall furring, perimeter/foundation, cavity wall, crawlspace, pre-cast concrete, under slab, sheathing and other applications (Not approved for roofing). Owens Corning’s patented Hydrovac® process technology makes the unique closed-cell structure of FOAMULAR® extruded polystyrene insulation highly resistant to moisture, retaining its long term R-value year after year.

    Pricing Breakdown:
    Quantity:Price Per:
    1 - 31$39.64
    32 +$37.42
    Add to QuoteDetails
  • FOAMULAR® 150 1 in x 4 ft x 8 ft R-5 Scored Squared Edge Insulation Sheathing

    FOAMULAR® 150 1 in x 4 ft x 8 ft R-5 Scored Squared Edge Insulation Sheathing

    $26.43
    As low as $24.95/pc.

    Note: If your project resides in the following states, you must select NGX as your board type:

    California, Colorado, Delaware, Maine, Maryland, Massachusetts, New Jersey, New York, Rhode Island, Vermont, Virginia, Washington

    All-purpose foam panel insulation for masonry and other applications. Owens Corning™ FOAMULAR® 150 extruded polystyrene insulation is ideal for wall furring, perimeter/foundation, cavity wall, crawlspace, pre-cast concrete, under slab, sheathing and other applications (Not approved for roofing). Owens Corning’s patented Hydrovac® process technology makes the unique closed-cell structure of FOAMULAR® extruded polystyrene insulation highly resistant to moisture, retaining its long term R-value year after year.

    Pricing Breakdown:
    Quantity:Price Per:
    1 - 95$26.43
    96 +$24.95
    Add to QuoteDetails
  • FOAMULAR® 250 3 in x 4 ft x 8 ft R-15 Scored Squared Edge Insulation Sheathing

    FOAMULAR® 250 3 in x 4 ft x 8 ft R-15 Scored Squared Edge Insulation Sheathing

    $80.89
    As low as $76.37/board

    Note: If your project resides in the following states, you must select NGX as your board type:

    California, Colorado, Delaware, Maine, Maryland, Massachusetts, New Jersey, New York, Rhode Island, Vermont, Virginia, Washington

    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.

    Pricing Breakdown:
    Quantity:Price Per:
    1 - 15$80.89
    16 +$76.37
    Add to QuoteDetails
  • FOAMULAR® 400 1 in x 2 ft x 8 ft R-5 Squared Edge Insulation Sheathing

    FOAMULAR® 400 1 in x 2 ft x 8 ft R-5 Squared Edge Insulation Sheathing

    $20.74
    As low as $19.58/board

    Note: If your project resides in the following states, you are required to use NGX rated insulation boards which are subject to higher pricing:

    California, Colorado, Delaware, Maine, Maryland, Massachusetts, New Jersey, New York, Rhode Island, Vermont, Virginia, Washington

    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.

    Pricing Breakdown:
    Quantity:Price Per:
    1 - 95$20.74
    96 +$19.58
    Add to QuoteDetails
  • FOAMULAR® 400 2 in x 4 ft x 8 ft R-10 Squared Edge Insulation Sheathing

    FOAMULAR® 400 2 in x 4 ft x 8 ft R-10 Squared Edge Insulation Sheathing

    $82.97
    As low as $78.33/board

    Note: If your project resides in the following states, you are required to use NGX rated insulation boards which are subject to higher pricing:

    California, Colorado, Delaware, Maine, Maryland, Massachusetts, New Jersey, New York, Rhode Island, Vermont, Virginia, Washington

    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.

    Pricing Breakdown:
    Quantity:Price Per:
    1 - 47$82.97
    48 +$78.33
    Add to QuoteDetails
  • FOAMULAR® 400 3 in x 4 ft x 8 ft R-15 Squared Edge Insulation Sheathing

    FOAMULAR® 400 3 in x 4 ft x 8 ft R-15 Squared Edge Insulation Sheathing

    $124.45
    As low as $117.48/board

    Note: If your project resides in the following states, you are required to use NGX rated insulation boards which are subject to higher pricing:

    California, Colorado, Delaware, Maine, Maryland, Massachusetts, New Jersey, New York, Rhode Island, Vermont, Virginia, Washington

    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.

    Pricing Breakdown:
    Quantity:Price Per:
    1 - 31$124.45
    32 +$117.49
    Add to QuoteDetails
  • FOAMULAR® 1000 3 in. x 2 ft. x 8 ft. R-15 Squared Edge Insulation Sheathing

    FOAMULAR® 1000 3 in x 2 ft x 8 ft R-15 Squared Edge Insulation Sheathing

    5 out of 5
    $165.94
    As low as $156.66/board

    Note: If your project resides in the following states, you are required to use NGX rated insulation boards which are subject to higher pricing:

    California, Colorado, Delaware, Maine, Maryland, Massachusetts, New Jersey, New York, Rhode Island, Vermont, Virginia, Washington

    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.

    Pricing Breakdown:
    Quantity:Price Per:
    1 - 31$165.94
    32+$156.66
    Add to QuoteDetails
  • Foam Board Insulation 2.06 in x 4 ft x 8 ft R-10 GPS ProBoard

    Foam Board Insulation 2.06 in x 4 ft x 8 ft R-10 GPS ProBoard (10 PSI)

    $41.57
    As low as $34.50/pc.

    ProBoard® Insulating Sheathing

    ProBoard Premium Insulating Sheathing is a closed cell, rigid foam insulation made with BASF’s patented Neopor® bead. Tiny graphite particles give Neopor® it’s silver/gray color and provide significantly higher insulation performance compared to white EPS insulation. Nearly 25% of your home’s wall is made up of studs that typically are not insulated, so it’s like having one entire wall of your home with no insulation. Adding insulation under new siding can help your home meet DOE recommendations.

    Pricing Breakdown:
    Quantity:Price Per:
    1 - 44$41.57
    45+$38.33
    Add to QuoteDetails
  • FOAMULAR® 250 1 in. x 4 ft. x 8 ft. R-5 Tongue & Groove Edge Insulation Sheathing

    FOAMULAR® 250 1 in x 4 ft x 8 ft R-5 Tongue & Groove Edge Insulation Sheathing

    $26.96
    As low as $27.53/board

    Note: If your project resides in the following states, you must select NGX as your board type:

    California, Colorado, Delaware, Maine, Maryland, Massachusetts, New Jersey, New York, Rhode Island, Vermont, Virginia, Washington

    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.

    Pricing Breakdown:
    Quantity:Price Per:
    1 - 95$29.38
    96 +$27.53
    Add to QuoteDetails
  • FOAMULAR® 150 2 in x 4 ft x 8 ft R-10 Scored Square Edge Insulation Sheathing

    FOAMULAR® 150 2 in x 4 ft x 8 ft R-10 Scored Square Edge Insulation Sheathing

    $52.82
    As low as $49.91/pc.

    Note: If your project resides in the following states, you must select NGX as your board type:

    California, Colorado, Delaware, Maine, Maryland, Massachusetts, New Jersey, New York, Rhode Island, Vermont, Virginia, Washington

    All-purpose foam panel insulation for masonry and other applications. Owens Corning™ FOAMULAR® 150 extruded polystyrene insulation is ideal for wall furring, perimeter/foundation, cavity wall, crawlspace, pre-cast concrete, under slab, sheathing and other applications (Not approved for roofing). Owens Corning’s patented Hydrovac® process technology makes the unique closed-cell structure of FOAMULAR® extruded polystyrene insulation highly resistant to moisture, retaining its long term R-value year after year.

    Pricing Breakdown:
    Quantity:Price Per:
    1 - 23$52.85
    24 +$49.89
    Add to QuoteDetails
  • FOAMULAR® THERMAPINK® 3 in x 4 ft x 8 ft R-15 Squared Edge Insulation Sheathing

    FOAMULAR® THERMAPINK® 3 in x 4 ft x 8 ft R-15 Squared Edge Insulation Sheathing

    $91.40
    As low as $85.65/board

    FOAMULAR® THERMAPINK® insulation has long-term thermal resistance stability compared to polyisocyanurate foam products. It also provides efficiencies during installation such as "direct-to-steel deck" with no gypsum board thermal barrier needed in most commercial single-ply and metal roofing systems. Owens Corning’s FOAMULAR® extruded polystyrene insulation is an ENERGY STAR® qualified product.

    Pricing Breakdown:
    Quantity:Price Per:
    1 - 31$91.40
    32+$85.65
    Add to QuoteDetails
  • FOAMULAR® 150 1 in x 4 ft x 8 ft R-5 Tongue & Groove Edge Insulation Sheathing

    FOAMULAR® 150 1 in x 4 ft x 8 ft R-5 Tongue & Groove Edge Insulation Sheathing

    $26.43
    As low as $24.95/pc.

    Note: If your project resides in the following states, you must select NGX as your board type:

    California, Colorado, Delaware, Maine, Maryland, Massachusetts, New Jersey, New York, Rhode Island, Vermont, Virginia, Washington

    All-purpose foam panel insulation for masonry and other applications. Owens Corning™ FOAMULAR® 150 extruded polystyrene insulation is ideal for wall furring, perimeter/foundation, cavity wall, crawlspace, pre-cast concrete, under slab, sheathing and other applications (Not approved for roofing). Owens Corning’s patented Hydrovac® process technology makes the unique closed-cell structure of FOAMULAR® extruded polystyrene insulation highly resistant to moisture, retaining its long term R-value year after year.

    Pricing Breakdown:
    Quantity:Price Per:
    1 - 47$26.43
    48 +$24.95
    Add to QuoteDetails
  • FOAMULAR® 600 3 in x 4 ft x 8 ft R-15 Squared Edge Insulation Sheathing

    FOAMULAR® 600 3 in x 4 ft x 8 ft R-15 Squared Edge Insulation Sheathing

    $134.82
    As low as $127.28/board

    Note: If your project resides in the following states, you are required to use NGX rated insulation boards which are subject to higher pricing:

    California, Colorado, Delaware, Maine, Maryland, Massachusetts, New Jersey, New York, Rhode Island, Vermont, Virginia, Washington

    Owens Corning™ FOAMULAR® 600 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® 600 is comparable to STYROFOAM™ Brand HIGHLOAD 60 Insulation.

    Pricing Breakdown:
    Quantity:Price Per:
    1 - 31$134.82
    32 +$127.28
    Add to QuoteDetails
  • FOAMULAR® THERMAPINK® 2 in x 4 ft x 8 ft R-10 Squared Edge Insulation Sheathing

    FOAMULAR® THERMAPINK® 2 in x 4 ft x 8 ft R-10 Squared Edge Insulation Sheathing

    $60.93
    As low as $57.10/board

    FOAMULAR® THERMAPINK® insulation has long-term thermal resistance stability compared to polyisocyanurate foam products. It also provides efficiencies during installation such as "direct-to-steel deck" with no gypsum board thermal barrier needed in most commercial single-ply and metal roofing systems. Owens Corning’s FOAMULAR® extruded polystyrene insulation is an ENERGY STAR® qualified product.

    Pricing Breakdown:
    Quantity:Price Per:
    1 - 47$71.16
    48+$64.04
    Add to QuoteDetails
  • FOAMULAR® 600 1 in x 2 ft x 8 ft R-5 Squared Edge Insulation Sheathing

    FOAMULAR® 600 1 in x 2 ft x 8 ft R-5 Squared Edge Insulation Sheathing

    $22.74
    As low as $21.31/board

    Note: If your project resides in the following states, you are required to use NGX rated insulation boards which are subject to higher pricing:

    California, Colorado, Delaware, Maine, Maryland, Massachusetts, New Jersey, New York, Rhode Island, Vermont, Virginia, Washington

    Owens Corning™ FOAMULAR® 600 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® 600 is comparable to STYROFOAM™ Brand HIGHLOAD 60 Insulation.

    Pricing Breakdown:
    Quantity:Price Per:
    1 - 95$22.47
    96 +$21.31
    Add to QuoteDetails
  • FOAMULAR® 250 2 in x 4 ft x 8 ft R-10 Scored Squared Edge Insulation Sheathing

    FOAMULAR® 250 2 in x 4 ft x 8 ft R-10 Scored Squared Edge Insulation Sheathing

    $53.93
    As low as $50.92/board

    Note: If your project resides in the following states, you must select NGX as your board type:

    California, Colorado, Delaware, Maine, Maryland, Massachusetts, New Jersey, New York, Rhode Island, Vermont, Virginia, Washington

    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™ 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.

    Pricing Breakdown:
    Quantity:Price Per:
    1 - 23$53.93
    24 +$50.91
    Add to QuoteDetails
  • FOAMULAR® 600 1.5 in x 2 ft x 8 ft R-7.5 Squared Edge Insulation Sheathing

    FOAMULAR® 600 1.5 in x 2 ft x 8 ft R-7.5 Squared Edge Insulation Sheathing

    $33.71
    As low as $31.83/board

    Note: If your project resides in the following states, you are required to use NGX rated insulation boards which are subject to higher pricing:

    California, Colorado, Delaware, Maine, Maryland, Massachusetts, New Jersey, New York, Rhode Island, Vermont, Virginia, Washington

    Owens Corning™ FOAMULAR® 600 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® 600 is comparable to STYROFOAM™ Brand HIGHLOAD 60 Insulation.

    Pricing Breakdown:
    Quantity:Price Per:
    1 - 127$33.71
    128 +$31.83
    Add to QuoteDetails
  • Foam Board Insulation .75 in x 4 ft x 8 ft R-3 EPS ProBoard

    Foam Board Insulation .75 in x 4 ft x 8 ft R-3 EPS ProBoard (10 PSI)

    $13.51
    As low as $11.23/pc

    ProBoard® Insulating Sheathing

    ProBoard Original Insulating Sheathing is a closed cell, rigid foam insulation made from expanded polystyrene (EPS). ProBoard is designed for residential and commercial exterior wall applications, to be installed under new siding products. Nearly 25% of your home’s wall is made up of studs that typically are not insulated, so it’s like having one entire wall of your home with no insulation. Adding insulation under new siding can help your home meet DOE recommendations.

    Pricing Breakdown:
    Quantity:Price Per:
    1 - 127$13.51
    128+$12.46
    Add to QuoteDetails
  • FOAMULAR® 600 3 in x 2 ft x 8 ft R-15 Squared Edge Insulation Sheathing

    FOAMULAR® 250 3 in x 4 ft x 8 ft R-15 Squared Edge Insulation Sheathing

    $67.00

    Note: If your project resides in the following states, you must select NGX as your board type:

    California, Colorado, Delaware, Maine, Maryland, Massachusetts, New Jersey, New York, Rhode Island, Vermont, Virginia, Washington

    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.

    Pricing Breakdown:
    Quantity:Price Per:
    1 - 31$67
    32 +$-
    Add to QuoteDetails
Insulation Supply Product Key
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

Minimum Compressive Strength (psi)

Filters:

ASTM C578 Type

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