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STYROFOAM SM

STYROFOAM™ SM extruded polystyrene insulation is recommended for use in below-grade applications, such as foundation or slab insulation, and ceiling applications.

CAD Details for STYROFOAM SM
Isolation du périmètre et sous la dalle - Spécification-type abrégée (11KB PDF)
Perimeter & Below Slab Guide Spec (9KB PDF)
Information sur le produit - STYROFOAM SM (79.7KB PDF)
STYROFOAM SM Product Information Sheet (435KB PDF)

STYROFOAM™ SM extruded polystyrene insulation, with its high compressive strength and moisture resistance, is recommended for use in below-grade applications, such as foundation or slab insulation, and ceiling applications. CAN/ULC S701 Type 4.

Thickness** R-Value Board Size Edge Treatment Min Compressive Strength
1" 5 24" x 96" Butt Edge or Shiplapped 30 psi
1-1/2" 7.5 24" x 96" Butt Edge or Shiplapped 30 psi
2" 10 24" x 96" Butt Edge or Shiplapped 30 psi
2.4" 12 24" x 96" Shiplapped 30 psi
2.5" 12.5 24" x 96" Shiplapped 30 psi
3.0" 15 24" x 96" Butt Edge or Shiplapped 30 psi
4.0" 20 24" x 96" Butt Edge or Shiplapped 30 psi
90 mm 17.5 400 mm x 2400 mm Butt Edge 30 psi
50 mm 10 600 mm x 2400 mm Butt Edge or Shiplapped 30 psi
75 mm 15 600 mm x 2400 mm Butt Edge or Shiplapped 30 psi


®™* Trademark of The Dow Chemical Company ("Dow") or an affiliated company of Dow
**Not all product sizes are available in all regions.
R means resistance to heat flow. The higher the R-value, the greater the insulating power. R-values are expressed in ft2•h•°F/Btu.
†† Vertical compressive strength is measured at 10% deformation (5% for STYROFOAM HIGHLOAD 40, 60 and 100 insulation products) or at yield, whichever occurs first. Since STYROFOAM extruded polystyrene insulation products are visco-elastic materials, adequate design safety factors should be used to prevent long-term creep and fatigue deformations.

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