Minnesota Administrative Rules
Agency 151 - Labor and Industry Department
Chapter 1323 - COMMERCIAL ENERGY CODE
Part 1323.0553 - SECTION 5.5.3, OPAQUE AREAS

Universal Citation: MN Rules 1323.0553

Current through Register Vol. 49, No. 13, September 23, 2024

Subpart 1. ASHRAE 90.1 section 5.5.3.1 Roof insulation.

ASHRAE 90.1 section 5.5.3.1 is amended to read as follows:

5.5.3.1 Roof insulation.

All roofs shall comply with the insulation values specified in Tables 5.5-0 through 5.5-8. Skylight curbs, mechanical curbs, and other roof curbs shall be insulated to the level of roofs with insulation entirely above deck or R-10, whichever is less.

Exception:

Historical buildings with roof slopes two units vertical in 12 units horizontal (2:12) or less. (Subsection 5.5.3.1.1 remains unchanged.)

Subp. 2. ASHRAE 90.1 section 5.5.3.3 Below-grade wall insulation.

ASHRAE 90.1 section 5.5.3.3 is amended to read as follows:

5.5.3.3 Below-grade wall insulation.

Below-grade walls shall have a rated R-value of insulation no less than the insulation values specified in Tables 5.5-0 through 5.5-8. Walls shall be insulated on the exterior side of the wall or integral to the wall.

Disclaimer: These regulations may not be the most recent version. Minnesota may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.