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European Windows & Doors in Tennessee
Made-to-order tilt-turn windows, folding doors and lift & slide doors, shipped to homeowners and builders in 5 Tennessee cities. Your contractor or an independent local installer handles installation.
City by city
Window energy rules across Tennessee
Each city's climate zone, the energy code it enforces for new homes, and the highest window U-factor that code allows (lower is better). SwingTilt's triple-pane windows have a U-factor of 0.19.
| City | Climate zone | Energy code for new homes | Max window U |
|---|---|---|---|
| Chattanooga | 3A | 2018 IECC with Tennessee amendments | 0.35 |
| Franklin | 3A | Being confirmed | — |
| Knoxville | 4A | Being confirmed | — |
| Memphis | 3A | 2021 IECC / IRC with Memphis-Shelby County amendments | 0.50 |
| Nashville | 3A | 2024 IRC / IECC with Metro Nashville amendments | 0.50 |
Checked October 2026; sources are linked on each city page. Codes change — confirm with your local building department.