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Products

Products / Insulation Products
STYROFOAMâ„¢
  • STYROFOAMâ„¢ SM Insulation Extruded Polystyrene is especially suited for
  • Foundations
  • Slabs
  • Crawl Spaces
  • Interior Basement
  • In-Ground Insulation Applications


The Type 4 extruded polystyrene foam insulation helps protect foundation damp-proofing and waterproofing, especially during backfilling and provides a secondary barrier against groundwater leakage.

STYROFOAM™ Brand SM Insulation also provides energy-efficient performance in many other types of commercial and residential applications, including attics and ceilings.

Building Code Compliance

CAN/ULC S701 Type 4, CCMC 04888-L

 

 


Board Thickness(1), in (mm) R-Value(2) (RSI) Board Size, ft (mm) Edge Treatment Min Compressive Strength(3), psi (kPa)
1.0 (25) Stock 5.0 (0.88) 2 x 8 (600 x 2400) Butt Edge/Shiplap 30 (210)
1.5 (38) Stock 7.5 (1.32) 2 x 8 (600 x 2400) Butt Edge/Shiplap 30 (210)
2.0 (50) Stock 10.0 (1.76) 2 x 8 (600 x 2400) Butt Edge/Shiplap 30 (210)
3.0 (75) Special Order 15 (2.64) 2 x 8 (600 x 2400) Butt Edge/Shiplap 30 (210)
4.0 (102) Special Order 20 (3.52) 2 x 8 (600 x 2400) Butt Edge/Shiplap 30 (210)

(1) Not all product sizes are available in all regions.

(2) R means resistance to heat flow. The higher the R-value or RSI (R-Value Système Internationale), the greater the insulating power. R-values are expressed in ft2• h•°F/Btu. RSI values are expressed in m2 °C/W. R-value determined by ASTM C518.

(3) Vertical compressive strength is measured at 10% deformation or at yield, whichever occurs first.


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