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FOAMULAR® C-300 Extruded Polystyrene Rigid Insulation

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FOAMULAR® C-300 - large Minimize heat loss or gain with Owens Corning FOAMULAR® C-300 Extruded Polystyrene Rigid Insulation, designed for use on above-grade exterior walls and the interior of foundation walls. It has an outstanding thermal resistance of R-5 per inch, a strong compressive strength of 30 PSI, and exceptional moisture resistance. C-300 insulation is GREENGUARD Indoor Air Quality Certified and contains 20% recycled material content. It’s lightweight and easy to cut and handle for quick installation and maximum job site efficiency. To further reduce heat loss and air and water infiltration, use C-300 insulation with shiplapped edges.
Product R-Value Edge Thickness Length Width
FOAMULAR® C-300 - Thumbnail FOAMULAR® C-300 Extruded Polystyrene Rigid Insulation

Product Details

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Edge: Butt Edge and Shiplap
RSI: 0.87/25mm
Butt Edge and Shiplap 51.0 mm
2.0 in.
610.0 mm
24.0 in.
2438.0 mm
96.0 in.

  • Save money on heating and cooling costs**
  • Min 20% recycled content certified by SCS
  • High R-value, minimum thickness
  • Exceptional moisture resistance
  • Lightweight, durable and easy to install
  • 70% lower global warming potential****
  • GREENGUARD Indoor Air Quality Certified(sm)
  • Made in Canada

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** Savings vary depending on the original amount of insulation in your home, climate, house size, air leaks, and personal energy use and living habits.<br /><br />

****The insulation is manufactured with a blowing agent with 70% less global warming potential as compared to Owens Corning previous blowing agents.