|
Zone |
Adding Insulation to an Attic | Floor | |
|---|---|---|---|
| Uninsulated Attic | Existing 3–4 Inches of Insulation | ||
| 1 | R30 to R49 | R25 to R30 | R13 |
| 2 | R30 to R60 | R25 to R38 | R13 to R19 |
| 3 | R30 to R60 | R25 to R38 | R19 to R25 |
| 4 | R38 to R60 | R38 | R25 to R30 |
| 5 to 8 | R49 to R60 | R38 to R49 | R25 to R30 |
Appalachian Insulation Supply Tools for Homeowners and Contractors
Use these links to access JM’s free online calculators and Estimators for Square footage, R-Value by Zip code, etc..
Below is a list of Industry Resources for answers on energy related topics.
- Department Of Energy Insulation Levels Recommendations
- Department of Energy-Insulation Fact Sheet
- Energy Star Home Advisor
- Energy Star “Home Energy Yardstick”
- Home Energy Saver
- Insulation Contractors Association of America (ICAA)
- National Association of Home Builders
- National Renewable Energy Laboratory (NREL)
- Partnership for Advancing Technology in Housing (PATH)
- United States Department of Energy (EPA)
- US Green Building Council