Texas Building Climate Zone
Texas spans hot humid, hot dry, and mixed climate zones; use county data for final design. State-level climate-zone pages are planning baselines; IECC climate zones are county based.
Planning baseline
- IECC climate zone: Zone 2A
- Climate type: Hot
- Wall planning target: R-13 or R-0 + R-10 continuous insulation
- Attic planning target: R-49 to R-60
- Floor planning target: R-13