The bill amends Minnesota Statutes 2024, section 326B.106, subdivision 4, to include new requirements for the State Building Code, specifically regarding unvented attics and enclosed rafter assemblies. The commissioner of labor and industry is tasked with adopting rules that classify unvented attic and unvented enclosed rafter assemblies as insulated and air sealed with air impermeable insulation, meeting specific insulation standards (R-30 with a maximum U-Factor of 0.038). This classification is contingent upon the condition that the indoor heating, cooling, and ventilation equipment, including ductwork, is located within the unvented attic.

In addition to the new provisions, the bill retains various existing requirements related to parking facilities for commuter vans, smoke detection devices in dwellings, and safety features for window cleaning, among others. The amendments aim to enhance building safety and energy efficiency while providing flexibility in construction practices, particularly for residential buildings and day care facilities.

Statutes affected:
Introduction: 326B.106