Windows in Texas
See an installed project in Texas.
Texas spans IECC climate zones 2, 3 and 4. In the strictest zone (3), the IECC prescriptive limit for windows in houses is U-0.30 and SHGC 0.25. 7 lines from 1 manufacturer are sold in Texas: 7 have not published NFRC ratings yet. Projects here may also need TDI windstorm product evaluation.
IECC adoption is municipal. Coastal counties need Texas Department of Insurance (TDI) windstorm certification.
Projects in Texas
Terrace opening, Texas. Fenstür.
Window limits for houses, by zone
| IECC climate zone | Max U-factor | Max SHGC |
|---|---|---|
| Zone 2 | 0.40 | 0.25 |
| Zone 3 | 0.30 | 0.25 |
| Zone 4 | 0.30 | No requirement |
Source: IECC 2021, Table R402.1.2 (verify against adopted edition). Values are a draft. Confirm the edition your jurisdiction has adopted. Use the code lookup to check one zone.
State and local approvals
National ratings are not enough in Texas. Depending on location, a window line also needs the approvals below, so check them before you pick a line.
TDI windstorm product evaluation
Texas Department of Insurance
- Where
- Designated catastrophe area: the 14 coastal counties and parts of Harris County
- When it is required
- Buildings that need a TDI windstorm certificate of compliance (WPI-8) for windstorm insurance through TWIA.
- What to ask for
- TDI product evaluation number and its listed design pressure and impact limits.
- Lines holding it
- None of the lines we track list this approval yet.
Texas Department of Insurance. Program summary is a draft. Confirm current requirements with the authority.
Wind-borne debris regions
Parts of Texas are wind-borne debris regions, which require impact-rated glazing or opening protection. None of the lines we track here publish an impact rating yet.
Lines sold in Texas, checked against zone 3
"Meets" means the line's best published NFRC rating is within U-0.30 and SHGC 0.25. Codes need rated values, so a line without them shows "Not published" until the manufacturer publishes them. Ask the sales rep for the rating of your exact configuration.
| Product | Best U-factor | Best SHGC | Zone 3 |
|---|---|---|---|
| Casement and Awning 78 Fenstür Windows & Doors | Not published | Not published | Not published |
| Climatech Lift and Slide Fenstür Windows & Doors | Not published | Not published | Not published |
| Expression Series Fenstür Windows & Doors | Not published | Not published | Not published |
| Imago Lift and Slide Fenstür Windows & Doors | Not published | Not published | Not published |
| Picture Windows Fenstür Windows & Doors | Not published | Not published | Not published |
| Tilt and Turn 106 Passive Fenstür Windows & Doors | Not published | Not published | Not published |
| Tilt and Turn 78 Fenstür Windows & Doors | Not published | Not published | Not published |
Full schedule for Texas
| FrameThe frame material. Aluminum-clad wood has a timber frame with an aluminum skin outside; all-wood shows timber on both faces. | OperationHow the window opens: casement, awning, hung, sliding, tilt-turn or fixed. The symbols show the hinge side or travel direction. | ImpactTested to withstand wind-borne debris (ASTM E1886/E1996). Required in hurricane debris regions unless shutters are used. | GlazingThe number of glass panes in the sealed unit: double, triple or quad. More panes insulate better and weigh more. | InstallHow the unit attaches to the opening: nail fin, flush fin, block frame or replacement insert. | TDI windstormThe ID of a state or local product approval, such as a Florida Product Approval or Miami-Dade NOA. Building officials check it at permit. | Verified | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Casement and Awning 78 Fenstür Windows & Doors RFV partner | Aluminum-clad wood or All-wood | CW-PG45 | Not published | Not published | Not published | Not published | Not published | Double | Block frame | Not published | Not published | Not held | Draft | |
Climatech Lift and Slide Fenstür Windows & Doors RFV partner | Aluminum-clad wood or All-wood | LC-PG30 | Not published | Not published | Not published | Not published | Not published | Double, Triple | Block frame | Not published | Not published | Not held | Draft | |
Expression Series Fenstür Windows & Doors RFV partner | All-wood | Not published | Not published | Not published | Not published | Not published | Not published | Double | Block frame | Not published | Not published | Not held | Draft | |
Imago Lift and Slide Fenstür Windows & Doors RFV partner | All-wood | LC-PG30 | Not published | Not published | Not published | Not published | Not published | Double, Triple | Block frame | Not published | Not published | Not held | Draft | |
Picture Windows Fenstür Windows & Doors RFV partner | Aluminum-clad wood or All-wood | CW-PG55 | Not published | Not published | Not published | Not published | Not published | Double, Triple, Quad | Block frame | Not published | Not published | Not held | Draft | |
Tilt and Turn 106 Passive Fenstür Windows & Doors RFV partner | Aluminum-clad wood or All-wood | CW-PG70 | Not published | 0.14PHI | Not published | Not published | Not published | Triple, Quad | Block frame | Not published | Not published | Not held | Draft | |
Tilt and Turn 78 Fenstür Windows & Doors RFV partner | Aluminum-clad wood or All-wood | CW-PG70 | Not published | Not published | Not published | Not published | Not published | Double | Block frame | Not published | Not published | Not held | Draft |
Showing 7 of 7 lines. Ranges cover every available configuration. Confirm the exact configuration against its NFRC label.
Manufacturers selling in Texas
- Fenstür Windows & DoorsDuncan, BC. 7 lines.RFV partner
Get pricing for a project in Texas
Send your project details, and a sales rep from Fenstür Windows & Doors contacts you with pricing.