STYROFOAM™ Brand Residential Sheathing (U.S. Only)

An extruded polystyrene foam board with plastic film facers on both sides.

Used In

  • For residential applications
  • For new construction and residing applications

Product Advantages

  • Contains an average of 20% pre-consumer recycled content certified by UL Environment Inc.
  • Film facers reduce job site damage
  • Provides a level, even surface for exterior sheathing and new siding material
  • Helps enhance energy efficiency and reduce condensation

Typical Physical Properties

These properties are typical but do not constitute specifications.

STYROFOAM™ Residential Sheathing

Nominal Board Thickness(1), in R-Value(2) Board Size, ft Edge Treatment Min Compressive Strength(3), psi
.50 3.0 4 x 8 / 4 x 9 Square Edge 15
.75 4.0 4 x 8 / 4 x 9 Tongue and Groove 15
1.0 5.0 4 x 8 / 4 x 9 Tongue and Groove 15

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

(2) 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. 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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