Bill Text: TX HB3314 | 2025-2026 | 89th Legislature | Introduced
Bill Title: Relating to certain energy efficiency performance standards for residential construction.
Spectrum: Partisan Bill (Republican 1-0)
Status: (Introduced) 2025-02-25 - Filed [HB3314 Detail]
Download: Texas-2025-HB3314-Introduced.html
| 89R958 MP-D | ||
| By: Harris | H.B. No. 3314 | |
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| relating to certain energy efficiency performance standards for | ||
| residential construction. | ||
| BE IT ENACTED BY THE LEGISLATURE OF THE STATE OF TEXAS: | ||
| SECTION 1. Chapter 388, Health and Safety Code, is amended | ||
| by adding Section 388.0045 to read as follows: | ||
| Sec. 388.0045. RESIDENTIAL BUILDING ENERGY EFFICIENCY | ||
| PERFORMANCE STANDARDS FOR ATTIC AND RAFTER ASSEMBLIES. (a) This | ||
| section applies only to residential construction. | ||
| (b) Notwithstanding any requirement contained in an energy | ||
| code adopted under Section 388.003(a) or (b), or a local amendment | ||
| adopted under Section 388.003(d), pertaining to the insulation of | ||
| unvented attic or unvented enclosed rafter assemblies, a local | ||
| jurisdiction shall consider an unvented attic or unvented enclosed | ||
| rafter assembly to be in compliance with the requirements of the | ||
| portion of the energy code administered and enforced by that local | ||
| jurisdiction pertaining to the insulation of unvented attic or | ||
| unvented enclosed rafter assemblies if: | ||
| (1) the attic or rafter assembly is insulated and air | ||
| sealed with air impermeable insulation to an R-value of at least: | ||
| (A) 20 if the attic or rafter assembly is located | ||
| in climate zone 2 or 3; or | ||
| (B) 26 if the attic or rafter assembly is located | ||
| in climate zone 4; and | ||
| (2) the building in which the attic or rafter assembly | ||
| is located: | ||
| (A) attains a blower door test result of less | ||
| than 3.0 ACH50; | ||
| (B) has a mechanical ventilation system that does | ||
| not rely solely on a negative pressure strategy; | ||
| (C) if insulation is installed below the roof | ||
| deck and the exposed portion of the roof rafters is not already | ||
| covered by air impermeable insulation to an R-value of at least 20 | ||
| or 26, as applicable, has the exposed portion of the roof rafters | ||
| wrapped in insulation to an R-value of at least 3, except that the | ||
| rafters are not required to be covered by insulation if: | ||
| (i) the rafters are directly covered by | ||
| drywall or finished ceiling; or | ||
| (ii) continuous insulation is installed | ||
| above the roof deck; and | ||
| (D) contains inside the building's thermal | ||
| envelope the building's indoor heating, cooling, and ventilation | ||
| equipment, including ductwork. | ||
| SECTION 2. This Act takes effect September 1, 2025. | ||
