Bill > HF3129

This bill requires the Commissioner of Labor and Industry to adopt new rules regarding unvented attics and enclosed rafter assemblies in the State Building Code. Specifically, the bill allows these spaces to be considered compliant with energy code requirements when they are insulated and air sealed with air-impermeable insulation that has an R-30 rating (or U-Factor of 0.038), but only if all heating, cooling, and ventilation equipment, including ductwork, is located inside the unvented attic. This change provides builders and homeowners with more flexibility in construction methods, particularly in how they insulate and ventilate attic spaces. The bill amends an existing section of Minnesota Statutes by adding a new provision (subsection (o)) to the list of special requirements in the State Building Code, which already includes various specific building and safety standards for different types of structures and installations.

Labor and Employment

https://www.revisor.mn.gov/bills/bill.php?b=House&f=HF3129&ssn=0&y=2025