STYROFOAM Residing Board
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
Existing Walls -Installing STYROFOAM Residing Board, Residential Sheathing, Tongue & Groove, DURAMATE Plus, TUFF-R, Super TUFF-R or STURDY-R™
STYROFOAM Residing Board is an extruded polystyrene foam insulation board with a square edge. Recommended for use over old siding to provide a solid, level surface for new siding materials.
| Nominal Board Thickness |
Product R-Value† |
Board Size |
Edge Treatment |
Min Compressive Strength†† |
| 0.5" |
2.8 |
2' x 8' |
Square Edge |
16 psi |
Building Code Compliance
Meets IBC/IRC requirements for foam plastic insulation. See ICBO-ES ER 2257, BOCA-ES RR 21-02, NES NER 699, Und. Lab. Inc.® Classified, see Classification Certificate D369.
†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 or at yield, whichever occurs first.
