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  • FOAMULAR® INS SHEATHING Laminated 0.75 in x 4 ft x 8 ft R-3.75 Tongue & Groove Edge Insulation Sheathing

FOAMULAR® INS SHEATHING Laminated 0.75 in x 4 ft x 8 ft R-3.75 Tongue & Groove Edge Insulation Sheathing


As low as $24.78/board

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 $26.44
60+ $24.78

Additional Information


0.75 in


8 ft


4 ft

Edge Type

Tongue & Groove

ASTM C578 Type


Minimum Compressive Strength (psi)


R Value






Product Description


0.75 in. x 4 ft. x 8 ft. R-3.75 Tongue & Groove Edge Insulation Sheathing

FOAMULAR® INS SHEATHING Laminated rigid XPS foam insulation is ideal for either wood or metal framing construction, and suits a variety of exterior finishes. These strong, lightweight, rigid foam panels with a film face provide the durability and damage resistance necessary to meet the rigorous demands of site built construction. In addition, Owens Corning’s patented Hydrovac® process technology makes FOAMULAR® extruded polystyrene insulation highly resistant to moisture. This permits the product to retain its long term R-value, year after year–even after prolonged exposure to water leakage, humidity, condensation and freeze/thaw cycling. FOAMULAR® extruded polystyrene insulation products offer these benefits:

  • High R-value (R-5 per inch of product thickness) is better than wood fiber, plywood or ½ ” gypsum panels.
  • Readily combines with blanket type insulation for greater R-value.
  • Used in fire-rated exterior wall assemblies for application in office buildings, schools, shopping centers and more.
  • Available with tough film facers for added damage-resistance.
  • Easy to handle, cut and install without the difficulties of foil facing.
  • Available in 4’ x 8’ or 4’ x 9’ sizes for faster installation and less labor.
  • Effectively impedes mildew, corrosion and rot.
  • Meets building codes and standards.

Sheathing is a component of Owens Corning’s PINK THERMAL WALL system. Used as sheathing over all exterior walls in wood or metal framing construction, FOAMULAR® extruded polystyrene Insulating Sheathing creates an effective insulating envelope over the entire structure. Owens Corning’s FOAMULAR® extruded polystyrene insulation is an ENERGY STAR® qualified product. Learn more about rigid insulation R values


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