Homeowners consistently rank energy efficiency as a high priority when purchasing a new home. That’s understandable, since the heating and cooling bill is the second highest monthly payment after the?mortgage for many families. Most say they are willing to spend more for a home that will deliver energy savings year after year. Cavity insulation is a good start, but it’s not enough. Wood framing, ducts, wiring and?plumbing – all poor insulators – make up more than 25 percent of a wall’s surface. In a typical home, that’s the equivalent of leaving an entire wall uninsulated. With an R-value of approximately 4. .78-in STYROFOAM Brand Residential Sheathing Extruded Polystyrene Insulation on exterior walls boosts the effective R-value of the wall by 20%.
Product Specification
| Series Name | RESIDENTIAL SHEATHING TONGUE AND GROOVE |
|---|---|
| Insulation Type | Polystyrene |
| Actual Width (Feet) | 4.0 |
| Actual Length (Feet) | 8.0 |
| Actual Thickness (Inches) | 1.0 |
| Common Width (Feet) | 4.0 |
| Common Length (Feet) | 8.0 |
| Common Thickness (Inches) | 1.0 |
| Coverage Area (Sq. Feet) | 32.0 |
| Package Weight (lbs.) | 13.12 |
| Package Quantity | 1 |
| ENERGY STAR Certified | Yes |
| Vapor Retardant | Yes |
| Formaldehyde Free | Yes |
| Warranty | 15-year limited |
| For Use in Attics | Yes |
| Fits 2 x 4 Walls | Yes |
| For Use in Basements | Yes |
| Maximum R-Value | 5.0 |
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