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

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

    5 out of 5
    $16.72
    As low as $15.47/board
    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 $16.72
    48 + $15.47
    Add to QuoteDetails
  • 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

    $64.06
    As low as $57.66/board
    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 $64.06
    48 + $57.66
    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

    $85.50
    As low as $76.95/board
    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 $85.50
    48+ $76.95
    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

    $31.20
    As low as $30.11/board
    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 $31.20
    48 + $30.11
    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

    $35.69
    As low as $32.12/board
    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 $35.69
    24 + $32.12
    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

    $71.39
    As low as $64.25/pc.
    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 $71.39
    24 + $64.25
    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

    $24.58
    As low as $22.74/pc.
    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 $24.58
    32 + $22.74
    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

    $46.80
    As low as $45.16/board
    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 $46.80
    16 + $45.16
    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
    $128.26
    As low as $115.43/board
    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 $128.26
    32+ $115.43
    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

    $17.85
    As low as $16.06/board
    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 $17.85
    96 + $16.06
    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

    $17.49
    As low as $15.74/pc.
    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 $17.49
    48 + $15.74
    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

    $17.49
    As low as $15.74/pc.
    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 $17.49
    96 + $15.74
    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

    $32.78
    As low as $30.32/pc.
    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 $32.78
    24 + $30.32
    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

    $96.10
    As low as $86.49/board
    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 $96.10
    32 + $86.49
    Add to QuoteDetails
  • FOAMULAR® 150 2.5 in x 4 ft x 8 ft R-12.5 Scored Square Edge Insulation Sheathing

    FOAMULAR® 150 2.5 in x 4 ft x 8 ft R-12.5 Scored Square Edge Insulation Sheathing

    $40.97
    As low as $37.90/pc.
    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 - 35 $40.97
    36 + $37.90
    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

    $59.14
    As low as $53.22/board
    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 $59.14
    48 + $53.22
    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

    $31.20
    As low as $30.11/board
    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 $31.20
    24 + $30.11
    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

    $88.70
    As low as $79.83/board
    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 $88.70
    32 + $79.83
    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

    $62.52
    As low as $56.27/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 $62.52
    32+ $56.27
    Add to QuoteDetails
  • FOAMULAR® 150 1 in x 4 ft x 8 ft R-5 Squared Edge Insulation Sheathing

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

    $17.49
    As low as $15.74/pc.
    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 $17.49
    96 + $15.74
    Add to QuoteDetails
  • FOAMULAR® 150 2 in x 4 ft x 8 ft R-10 Square Edge Insulation Sheathing

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

    $34.98
    As low as $31.48/pc.
    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 $34.98
    48 + $31.48
    Add to QuoteDetails
  • FOAMULAR® 1000 1.5 in. x 2 ft. x 8 ft. R-7.5 Squared Edge Insulation Sheathing

    FOAMULAR® 1000 1.5 in x 2 ft x 8 ft R-7.5 Squared Edge Insulation Sheathing

    $64.13
    As low as $57.72/board
    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 - 63 $64.13
    64+ $57.72
    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

    $14.78
    As low as $13.31/board
    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 $14.78
    96 + $13.31
    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

    $16.02
    As low as $14.41/board
    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 $16.02
    96 + $14.41
    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.

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