Updated : 04/22/2024

Overview

The city of Duluth, MN has adopted the following codes:

• 2015 Minnesota Building Code, based on the 2012 IBC, including Appendix J with amendments. Minn. R. § 1305.0011. 
• 2015 Minnesota Residential Code, based on the 2012 IRC, including Appendix K with amendments. Minn. R. § 1309.0010.
• 2015 Minnesota Conservation Code for Existing Buildings, based on the 2012 IEBC with amendments. Minn. R. § 1311.0010.
• 2015 Minnesota Energy Code, based on the 2012 IECC.Minn. R. § 1322.0010 (residential) and Minn. R. § 1323.0010  (commercial).

Duluth, MN Muni Code § 10-1 (a) (1) (State building code adopted).

Helpful resources for Duluth, Minnesota include the following.

• Jurisdiction's Information Page(s):
  • Duluth, MN Construction Services & Inspections Webpage
• PLRB, Ordinance and Law Coverage Discussion for Minnesota

Residential Building Code

Minnesota adopted a statewide mandatory residential code that will control. Authority for local amendments will be limited.See PLRB, Minnesota Building Codes for more information on state level codes.

Duluth adopted the 2012 IRC, statewide. Note that adoptions usually come with amendments. So, it is important to review those amendments in addition to the unamended model code.

You can find a copy of the model code here.

You can find information about amendments to the model code here.

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2020 Minnesota Residential Code (2018 IRC)(Duluth, MN Chapter 10 - Buildings)

...' 10-35. Finding of fact. ' 10-36. Definition. ' 10-37. Prohibition. ' 10-38. Repealed. ' 10-39. Appeal. - - - Article I. Building Code. Sec. 10-1. State building code adopted. The city of Duluth hereby adopts the Minnesota State Building Code, 2015 edition, including all of the amendments and rules and regulations, as adopted by State of Minnesota commissioner of labor and industry, with the...

Drip Edge

Drip Edge: no

Ice Barrier

Are ice barriers required for Duluth ? Yes
Citation: 10-1
Municipal Code https://library.municode.com/mn/duluth/codes/legislative_code?nodeId=Chapter%2010%20-%20Buildings
Comments:

The 2015 Minnesota Residential Code adopted the 2012 International Residential Code, with amendments. Minn. R.§ 1309.0010.

Drip Edges: Section R905.2.8.5 is deleted in its entirety. See Minn. R. § 1309.0905. See the tables below.

Table R301.2(1) – Ice Barriers are required. Minn. R.§ 1309.0301.

Ground Snow Load	Wind Speed (MPH)	Topographic	Seismic Design Category	Damage from Weathering	Damage from Frost Line Depth
60 lbs	90	YES	A	Severe	5 feet

Damage from Termite	Winter Design Temp	Ice Barrier Underlayment Required	Flood Hazards	Air Freezing Index	Mean Annual Temp
None to Slight. Also see Footnote "C"	Summer 81/67 F Winter -20 F See Table R403.5.17	YES	See Minn R Chapter 1335	4,000 See Table R403.3(2)	41.16 deg

Comments

The 2015 Minnesota Residential Code adopted the 2012 International Residential Code, with amendments. Minn. R.§ 1309.0010. The city of Duluth adopted the 2015 Minnesota Residential Code. Duluth, MN Muni Code § 10-1 (a) (1) (State building code adopted).

Existing Buildings

Existing buildings, meaning buildings that were built in accordance to code at the time of construction, typically merit extra consideration in a current updated code.

Any buildings meeting the requirements of the International Residential Code are exempt from the Minnesota Existing Building Code Chapter 1311. Minn. R.§ 1309.0100.

References to the International Property Maintenance Code do not apply. Minn. R.§ 1311.0020.

Commercial Building Code

Duluth adopted the 2012 IBC, statewide. Note that adoptions usually come with amendments. So, it is important to review those amendments in addition to the unamended model code.

You can find a copy of the code here.You can find information about amendments to the model code here.

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2020 Minnesota Bldg. Code (2018 IBC)(Duluth, MN Chapter 10 - Buildings)

...' 10-35. Finding of fact. ' 10-36. Definition. ' 10-37. Prohibition. ' 10-38. Repealed. ' 10-39. Appeal. - - - Article I. Building Code. Sec. 10-1. State building code adopted. The city of Duluth hereby adopts the Minnesota State Building Code, 2015 edition, including all of the amendments and rules and regulations, as adopted by State of Minnesota commissioner of labor and industry, with the...

Comments

The 2015 Minnesota Building Code, effective June 2, 2015, Minn. R. § 1305.0011. The city of Duluth adopted the 2015 MN State Building Code, including Appendix J with amendments. Duluth, MN Muni Code § 10-1 (a) (1) (State building code adopted).

Existing Buildings

The 2015 Minnesota Conservation Code for Existing Buildings, was adopted by the city. Minn. R. § 1311.0010: Duluth, MN Muni Code § 10-1 (a) (1) (State building code adopted).

Other Building Codes