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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® 250 0.75 in x 4 ft x 8 ft R-3.75 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.
    Pricing Breakdown:
    Quantity: Price Per:
    1 - 59 $16.06
    60 + $14.46
  • FOAMULAR® 250 0.75 in x 4 ft x 8 ft R-3.75 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.
    Pricing Breakdown:
    Quantity: Price Per:
    1 - 59 $14.04
    60 + $13.55
  • FOAMULAR® 250 0.75 in. x 2 ft. x 8 ft. R-3.75 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.
    Pricing Breakdown:
    Quantity: Price Per:
    1 - 119 $8.03
    120 + $7.23
  • FOAMULAR® INS SHEATHING Laminated 0.75 in x 4 ft x 8 ft R-3.75 Tongue & Groove Edge Insulation Sheathing
    Superior insulation performance for a wide variety of building requirements. FOAMULAR® INS SHEATHING Laminated XPS insulation can be used for:
    • Insulating Exterior Foundation Walls
    Pricing Breakdown:
    Quantity: Price Per:
    1 - 59 $18.76
    60+ $16.88
  • FOAMULAR® 250 0.75 in x 4 ft x 8 ft R-3.75 Scored 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.
    Pricing Breakdown:
    Quantity: Price Per:
    1 - 59 $14.04
    60 + $13.55