Energy Star v7.0 Climate Zone Map & Glazing Specification Guide

## The Energy Star Version 7.0 Standard The US Environmental Protection Agency (EPA) established Energy Star Version 7.0 to reflect modern glazing technological advances. Choosing windows certified for your specific climate zone helps maximize energy performance. ### The 4 US Climate Zones: 1. **Northern Climate Zone:** Focuses on heat retention. Prescriptive criteria requires U-factor $\le 0.22$. 2. **North-Central Climate Zone:** Balanced heating and cooling. Requires U-factor $\le 0.25$ and SHGC $\le 0.40$. 3. **South-Central Climate Zone:** Cooling dominated. Requires U-factor $\le 0.28$ and SHGC $\le 0.23$. 4. **Southern Climate Zone:** Extreme cooling load. Requires U-factor $\le 0.32$ and SHGC $\le 0.23$. Connect with independent contractors to select windows meeting Energy Star v7.0 regional standards. Call for an upfront **Fair Quote**.