CODES

ADOPTS WITH AMENDMENTS:

International Energy Conservation Code 2012 (IECC 2012)

1322.0010
ADOPTION OF INTERNATIONAL ENERGY
CONSERVATION CODE (IECC) BY REFERENCE

Subpart 1. General.
Chapters 2(RE) to 5(RE) of the Residential Provisions of the 2012 edition of the International Energy Conservation Code (IECC) as promulgated by the International Code Council, Inc. (ICC), Washington, DC, is incorporated by reference and made part of the Minnesota State Building Code except as qualified by the applicable provisions in Minnesota Rules, Chapter 1300, and as amended in this chapter. Portions of this publication reproduce excerpts from the 2012 IECC, International Code Council, Inc. Washington, DC, copyright 2012, reproduced with permission, all rights reserved. The 2012 IECC is not subject to frequent change and a copy of the 2012 IECC with amendments for use in Minnesota is available in the office of the commissioner of labor and industry.
Subp. 2. Mandatory chapters.
Chapters 2(RE) to 5(RE) of the Residential Provisions of the 2012 IECC shall be administered by any municipality that has adopted the Minnesota State Building Code, except as qualified by applicable provisions in Minnesota Rules, Chapter 1300, and as amended by this chapter.
Subp. 3. Replacement chapters.
Chapter 1 of the Residential Provisions of the IECC and any references to code administration are deleted and replaced with Minnesota Rules, Chapter 1300, Minnesota Building Code Administration.

1322.0015
ADMINISTRATION AND PURPOSE

Subpart 1. Administration.
This code shall be administered according to Chapter 1300.
Subp. 2. Purpose.
The purpose of this chapter is to establish a minimum code of standards for the construction, reconstruction, alteration, and repair of residential buildings governing matters including design and construction standards regarding heat loss control, illumination, and climate control, pursuant to Minnesota Statutes, Sections 326B.101, 326B.106, and 326B.13.

1322.0030
REFERENCES TO OTHER
INTERNATIONAL CODE COUNCIL (ICC) CODES

Subpart 1. Generally.
References to other codes and standards promulgated by the International Code Council in the International Energy Conservation Code are modified in this part.
Subp. 2. Building code.
References to the International Building Code mean the Minnesota Building Code, Minnesota Rules, Chapter 1305, and adopted pursuant to Minnesota Statutes, Section 326B.106, subdivision 1.
Subp. 3. Residential code.
References to the International Residential Code mean the Minnesota Residential Code, Minnesota Rules, Chapter 1309, and adopted pursuant to Minnesota Statutes, Section 326B.106, subdivision 1.
Subp. 4. Electrical code.
References to the National Electrical Code mean the Minnesota Electrical Code, Minnesota Rules, Chapter 1315, adopted pursuant to Minnesota Statutes, Section 326B.35.
Subp. 5. Fuel gas code.
References to the International Fuel Gas Code mean the Minnesota Mechanical and Fuel Gas Code, Minnesota Rules, Chapter 1346, adopted pursuant to Minnesota Statutes, Section 326B.106, subdivision 1.
Subp. 6. Mechanical code.
References to the International Mechanical Code mean the Minnesota Mechanical and Fuel Gas Code, Minnesota Rules, Chapter 1346, adopted pursuant to Minnesota Statutes, Section 326B.106, subdivision 1.
Subp. 7. Plumbing code.
References to the International Plumbing Code mean the Minnesota Plumbing Code, Minnesota Rules, Chapter 4715, adopted pursuant to Minnesota Statutes, Section 326B.435.
Subp. 8. Private sewage disposal code.
References to the International Private Sewage Disposal Code mean the Minnesota Pollution Control Agency’s minimum standards and criteria for individual sewage treatment systems in Minnesota Rules, Chapters 7080, 7082, and 7083, adopted pursuant to Minnesota Statutes, Chapters 103F, 103G, 115, and 116.
Subp. 9. Energy conservation code.
References to the International Energy Conservation Code mean the Minnesota Energy Code, Minnesota Rules, Chapters 1322 and 1323, adopted pursuant to Minnesota Statutes, Section 326B.106.
Subp. 10. Property maintenance code.
References to the International Property Maintenance Code do not apply.
Subp. 11. Accessibility code.
References to accessibility mean the Minnesota Accessibility Code, Minnesota Rules, Chapter 1341.

1322.0040
ADMINISTRATIVE PROCEDURE CRITERIA

Procedures relating to the administration and enforcement pursuant to Minnesota Statutes, Section 326B.101, are contained in Minnesota Rules, Chapter 1300, Minnesota Building Code Administration, which govern the application of this code.

1322.0100
ADMINISTRATION FOR RESIDENTIAL ENERGY

Subpart 1. Administration.
In addition to the application of Minnesota Rules, Chapter 1300, the administrative requirements in this part shall apply.
Subp. 2. Scope.
This code applies to residential buildings and associated systems and equipment as defined in the Residential Provisions of the 2012 IECC.
Subp. 3. Applicability.

A. Additions, alterations, renovations, or repairs. Additions, alterations, renovations, or repairs to an existing building, building system, or portion of a building shall conform to the provisions of this code as they relate to new construction without requiring the unaltered portion of the existing building or building system to comply with this code. Additions, alterations, renovations, or repairs shall not create an unsafe or hazardous condition or overload existing building systems. An addition shall comply with this code if the addition alone complies or if the existing building and addition comply with this code as a single building. Attic insulation shall not be installed unless accessible attic bypasses have been sealed. An attic bypass is any air passageway between a conditioned space and an unconditioned attic.

Exceptions: The following are excepted from this part provided the energy use of the building is not increased:

1. Storm windows installed over existing windows.

2. Glass only replacements in an existing sash and frame.

3. Existing ceiling, wall, or floor cavities exposed during construction provided that these cavities are filled with insulation.

4. Construction where the existing roof, wall, or floor cavity is not exposed.

5. Reroofing and residing.

6. Replacement of existing doors that separate conditioned space from the exterior do not require the installation of a vestibule or revolving door; provided that an existing vestibule that separates a conditioned space from the exterior shall not be removed.

7. Alterations that replace less than 50 percent of the luminaires in a space, provided that the alterations do not increase the installed interior lighting power.

8. Alterations that replace only the bulb and ballast within the existing luminaires in a space, provided that the alteration does not increase the installed interior lighting power.

9. Insulation R-value, air barrier, and vapor retarder requirements are not applicable to existing foundations, crawl space walls, and basements in existing dwellings or dwelling units when the alteration or repair requires a permit if the original dwelling or dwelling unit permit was issued before June 1, 2009.

B. Change in occupancy or use. Spaces undergoing a change in occupancy that would result in an increase in demand for either fossil fuel or electrical energy shall comply with this code.

C. Change in space conditioning. Any nonconditioned space that is altered to become conditioned space shall be brought into full compliance with this code.

D. Mixed occupancy. Where a building includes both residential and commercial occupancies, each occupancy shall be separately considered and meet the applicable provisions of this chapter and Chapter 1323.

Subp. 4. Compliance.
Residential buildings shall meet the requirements of Minnesota Rules, Chapter 1322. Commercial buildings shall meet the requirements of Minnesota Rules, Chapter 1323.

A. Compliance materials. The building official is permitted to approve specific computer software, worksheets, compliance manuals, and other similar materials that meet the intent of this code.

B. Low energy buildings. The following buildings, or portions thereof, separated from the remainder of the building by building thermal envelope assemblies complying with this code are exempt from the building thermal envelope provisions of this code:

(1) those with a peak design rate of energy usage less than 3.4 Btu/h ft2 (10.7 W/m2) or 1.0 watt/ft2 (10.7 W/m2) of floor area for space conditioning purposes; and

(2) those that do not contain conditioned space.

1322.0103
CONSTRUCTION DOCUMENTS

Construction documents shall be drawn to scale upon suitable material. Electronic media documents are permitted to be submitted when approved by the building official. Construction documents shall be of sufficient clarity to indicate the location; nature, and extent of the work proposed, and show in sufficient detail pertinent data and features of the building, systems, and equipment as herein governed. The details shall include the following when applicable:

A. Insulation materials and their R-values;
B. Fenestration U-factors and SHGCs;
C. Area-weighted U-factor and SHGC calculations;
D. Mechanical system design criteria;
E. Mechanical and service water heating system and equipment types, sizes, and efficiencies;
F. Equipment and systems controls;
G. Fan motor horsepower (hp) and controls;
H. Duct sealing, and the location and insulation of ducts and pipes;
I. Lighting fixture schedule with wattage and control narrative; and
J. Air sealing details.
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