|
|
|
Energy Star Requirements
| ENERGY
STAR Qualification Criteria WINDOWS AND DOORS |
| Zone |
U-factor |
SHGC |
| Northern |
< 0.35 |
Any |
| North/Central |
< 0.40 |
< 0.55 |
| South/Central |
< 0.40 |
< 0.40 |
| Southern |
< 0.65 |
< 0.40 |
|
|
| ENERGY STAR Qualification
Criteria SKYLIGHTS |
| Zone |
U-factor |
SHGC |
| Northern |
< 0.60 |
Any |
| North/Central |
< 0.60 |
< 0.40 |
| South/Central |
< 0.60 |
< 0.40 |
| Southern |
< 0.75 |
< 0.40 |
|
|
