Texas HB3314 amends energy efficiency standards for residential construction, specifically for unvented attics and rafter assemblies.

Texas HB3314 amends the Health and Safety Code to establish energy efficiency performance standards for residential construction. It specifies that local jurisdictions must consider unvented attics or enclosed rafter assemblies compliant if they meet certain insulation and air sealing requirements. These include achieving an R-value of at least 20 or 26, depending on the climate zone, and passing a blower door test with a result of less than 3.0 ACH50. The building must also have a mechanical ventilation system that does not rely solely on a negative pressure strategy.

Texas HB3314 amends energy efficiency standards for residential construction, specifically for unvented attics and rafter assemblies.

Texas HB3314 amends the Health and Safety Code to establish energy efficiency performance standards for residential construction. It specifies that local jurisdictions must consider unvented attics or enclosed rafter assemblies compliant if they meet certain insulation and air sealing requirements. These include achieving an R-value of at least 20 or 26, depending on the climate zone, and passing a blower door test with a result of less than 3.0 ACH50. The building must also have a mechanical ventilation system that does not rely solely on a negative pressure strategy.