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Building and Design Criteria
Building and Design Criteria
City of Bismarck Codes
The following codes are currently enforced by the City of Bismarck:
2021 International Building Code (IBC)
2021 International Residential Code (IRC)
2021 International Fire Code (IFC)
2021 International Fuel Gas Code (IFC)
2021 International Mechanical Code (IMC)
2021 International Energy Conservation Code (IECC)
2021 International Existing Building Code (IEBC)
ICC ANSI A117.1 2017 (All new bathrooms will need to meet these requirements)
National Electrical Code and the North Dakota State Wiring Standards adopted by the North Dakota State Electrical Board
Uniform Plumbing Code and the North Dakota State Plumbing Standards adopted by the North Dakota State Plumbing Board
IRC Climatic and Geographic Design Criteria Information
Ground snow load: 35 psf
Wind Design speed: 115 mph
Wind Design topographic effects: NO
Wind Design special wind region: NO
Wind Design wind-borne debris zone: NO
Seismic Design Criteria: Zone A
Subject to Damage From weathering: Severe
Subject to Damage from frost depth: 4 feet
Subject to Damage from termite: NO
Winter Design Temp: -19
Ice Barrier Underlayment Required: YES
Flood Hazards: First FIRM adopted in 1985, current/revised FIRM adopted 2014.
Air Freezing Index: 4000
Mean Annual Temp: 42 degrees (F)
IRC Energy Efficiency Building Thermal Envelope Requirements
Climate Zone: 6A
Fenestration U-factor: 0.30 Maximum
Skylight U-Factor: 0.55 Maximum
Ceiling R-Value: 49 Minimum
Wood Frame Wall R-Value: 21 or 13+5 Minimum
Mass Wall R-Value: 15/20 Minimum
Floor R-Value: 30 Minimum
Basement Wall R-Value: 10/13 Minimum
Slab R-Value and Depth: 10, 4ft Minimum
Crawl Space Wall R-Value: 10/13 Minimum
Building and Design Criteria
Jurisdiction of Division
Flood Resources
Licenses
Online Permits, Projects, and Licenses
Permit Activity
Permit Applications
Permit Fees
Permits Are Required For...
Report a Rental Housing Complaint
Required Inspections
Title 4 - Building Ordinance
Title 14 - Zoning Ordinance
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