STYROFOAM™ Brand Insulation Residential Sheathing provides excellent thermal performance for new construction and residing applications.

STYROFOAM™ Brand Residential Sheathing is an extruded polystyrene foam board with plastic film facers on both sides to reduce job site damage to the insulation boards. In new construction and residing applications, it provides a level, even surface for the exterior sheathing and for new siding material, plus helps enhance energy efficiency, reduce condensation and create an attractive, long-lasting home exterior.

Building Code Compliance

Meets IBC/IRC requirements for foam plastic insulation. See ESR-2142, BOCA-ES RR 21-02, ICBO-ES ER-2257. UL Classified, see Classification Certificate D369. Calif. Std. Reg. # CA T064. Florida Building Code FL 3835.

Related Information

Existing Walls – Installing STYROFOAM™ Residing Board, Residential Sheathing, Tongue & Groove, DURAMATE™ Plus, TUFF-R™, Super TUFF-R™ or STURDY-R™
Foam Over OSB – Installing STYROFOAM™ Residential Sheathing, Tongue & Groove, DURAMATE™ Plus, TUFF-R™, Super TUFF-R, THERMAX™ or STURDY-R™
Foam Over Studs – Installing STYROFOAM™ Residential Sheathing, Tongue & Groove, DURAMATE™ Plus, TUFF-R™, Super TUFF-R, THERMAX™ or STURDY-R
Foam Over Studs – Installing STYROFOAM™ Residential Sheathing, Tongue & Groove, Square Edge, DURAMATE™ Plus, TUFF-R™, Super TUFF-R™ or THERMAX™ for use as a Water-Resistive Barrier
Existing Walls – Installing STYROFOAM™ Residing Board, STYROFOAM Residential Sheathing, STYROFOAM Tongue & Groove, DURAMATE™ Plus, TUFF-R™ or Super TUFF-R™ for use as a weather-resistive barrier
Foam Over OSB – Installing STYROFOAM™ Residential Sheathing, Tongue & Groove, Square Edge, DURAMATE™ Plus, TUFF-R™, Super TUFF-R™ or THERMAX™ for use as a weather-resistive barrier
STYROFOAM™ Extruded Polystyrene Foam Insulation – 50 Year Thermal Limited Warranty (206KB PDF)
STYROFOAM™ Extruded Polystyrene Foam Insulation – 30 Year Thermal Limited Warranty (202KB PDF)

STYROFOAM™ Brand Residential Sheathing has plastic film facers on both sides to reduce job site damage and it provides a level, even surface for the exterior sheathing and for new siding material.

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.

07 20 00 – Board Insulation

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