Energy code lookup
Pick a state or province and its climate zone to see the window limits for houses and any approvals that apply. The table below checks every line sold there against them.
- Max U-factor
- 0.40
- Max SHGC
- 0.25
Energy code is adopted city by city, so check the IECC edition with the local building department.
Lines available in Arizona
| Product | Best NFRC U-factor | Best NFRC SHGC | Impact | Energy code |
|---|---|---|---|---|
| Casement and Awning 78 Fenstür Windows & Doors | Not published | Not published | Not published | NFRC rating on request |
| Climatech Lift and Slide Fenstür Windows & Doors | Not published | Not published | Not published | NFRC rating on request |
| Expression Series Fenstür Windows & Doors | Not published | Not published | Not published | NFRC rating on request |
| Imago Lift and Slide Fenstür Windows & Doors | Not published | Not published | Not published | NFRC rating on request |
| Picture Windows Fenstür Windows & Doors | Not published | Not published | Not published | NFRC rating on request |
| Tilt and Turn 106 Passive Fenstür Windows & Doors | Not published | Not published | Not published | NFRC rating on request |
| Tilt and Turn 78 Fenstür Windows & Doors | Not published | Not published | Not published | NFRC rating on request |
Sources: IECC 2021, Table R402.1.2 (verify against adopted edition);NBC, Table 9.36.2.7.-A (verify against the provincial code in force). "Can meet" means at least one configuration of the line is within the limit. Confirm the exact configuration's NFRC label, and the code edition your jurisdiction has adopted.