TUFF-R
Installation Instructions for TUFF-R™
TUFF-R™ polyisocyanurate insulation features an Rvalue of R6.5 inch. It is versatile, fitting numerous insulation and sheathing requirements, and can be applied to a variety of substrates.
TUFF-R insulation features a patented high-performance foam core with radiant barrier-quality aluminum foil facers on both sides (one side reinforced). Air cannot penetrate the facers, which also minimize water and water vapor intrusion into the foam. Traditional OSB or plywood sheets are commonly used as sheathing beneath exterior siding. These items offer little insulating value. TUFF-R insulation is an energy-efficient alternative to maintain comfort while lowering heating and cooling costs - a value enhancement for every home.
| Nominal Board Thickness** |
R-Value ,1 |
Board Size |
Edge Treatment |
Min Compressive Strength |
| 0.5" |
3.3 |
4' x 8'/4' x 9' |
Square Edge |
25 psi |
| 0.625" |
4.1 |
4' x 8'/4' x 9' |
Square Edge |
25 psi |
| 0.75" |
5 |
4' x 8'/4' x 9' |
Square Edge |
25 psi |
| 1.0" |
6.5 |
4' x 8'/4' x 9' |
Square Edge |
25 psi |
Building Code Compliance
Complies with ASTM C1289 Type I, Class 1. Meets IBC/IRC requirements for foam plastic insulation. See NES NER 616.
**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 or at yield, whichever occurs first.
1 R-value determined by ASTM C518.
Not available in all areas. Available in the East and in Colorado and New Mexico.
