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Posted on: November 7, 2018

2018 Building Code Changes

The attached documents (3) show the 2018 Building Code Updates proposed for adoption in Green River. 

There will be a City Council Workshop to discuss the details of the changes on Tuesday, November 13, 2018, at 6 pm at City Hall. 

Documents (all PDF):
2018 Code Adoption Explanation (Summary of Changes)
2018 Code Adoption with Redline (changes in red)
2018 Code Adoption with Redline Removed


Summary of Changes:

 2018 IBC-INTERNATIONAL BUILDING CODE
Adopting the 2018 International Building Code
• Adding Appendix I “Patio covers”

2018 IRC-INTERNATIONAL RESIDENTIAL CODE
Adopting the 2018 International Residential Code
• Adding to table Manual J Design Criteria
o Elevation = 6132’
o Latitude 41.5286° N
o Winter heating = -6°
o Summer cooling 88°
o Indoor design temperature 70 °
o Altitude correction factor = 0.84
o Design temperature cooling = 70°-75° F
o Heating temperature difference = 50° F
o Cooling temperature difference = 18°F
o Wind velocity heating = 15 mph
o Wind velocity cooling = 7.5 mph
o Coincident wet bulb = 62°
o Daily range = H
o Winter humidity = Low
o Summer humidity 50%
• Removed language from ordinance and keeping language as the code states
1. One-story detached accessory structures, provided that the floor area does not exceed 200 square feet and has a total building height of no more than 10.5 feet.
2. Fences not exceeding 6 feet in height.
• Adding to Section R403.1.1 entitled “Minimum Size is amended by adding exception #1 to read as follows: Exception 1. Footings shall be at least 8" x 16" and be provided with a minimum of 3 - #4 bars in the footing for single unit residential housing footings per city of Green River Standards Specifications."
• Section R404.1.3 entitled “Minimum Size is amended by adding exception #1 to read as follows: Exception 1. "Concrete Foundation walls for single unit residential housing shall be minimum 8" thick and reinforced with #4 bars 18" on center vertically and horizontally, unless designed by a registered design professional."
• Section R404.1.1 entitled "Design required" is amended by adding a third condition to read as follows: "3. Foundation walls for single unit residential housing are to be built to City standards
• Section N1102, Table N1102.1.2 Wood Frame Wall is amended to read as follows for climate 6:

TABLE INSET: Wood Frame Wall R-Value 21
• Existing Dwellings: Replace insulation with that of existing walls sizes

2018 IEC-INTERNATIONAL EXISTING BUILDING CODE
Adopting the 2018 International Existing Code – no amendments are necessary.

2018 IPC- INTERNATIONAL PLUMBING CODE
Adopting the 2018 International Plumbing Code – no amendments are necessary.

2018 IMC-INTERNATIONAL MECHANICAL CODE
Adopting the 2018 International Mechanical Code – no amendments are necessary.

2018 IFGC-INTERNATIONAL FUEL GAS CODE
Adopting the 2018 International Fuel Gas Code – no amendments are necessary.

2018 IPMC-INTERNATIONAL PROPERTY MAINTENANCE CODE
Adopting the 2018 International Property Maintenance Code – no amendments are necessary.

2018 IFC-INTERNATIONAL FIRE CODE
Adopting the 2018 International Fire Code – no amendments are necessary.
ELECTRICAL CODE
Adopting the latest edition of the National Electric Code NFPA 70 as published by the National Fire Protection Association and required by the State of Wyoming Fire Marshal Office is hereby adopted by reference and incorporated herein as part of this section as fully as if completely set out herein. One copy of such code shall be kept on file at all times in the office of the city clerk or city building inspector for examination and inspection.
• Adding the four paragraphs to clarify electrical code and permitting process
An electrical permit shall be obtained for all electrical installations. The general contractor may include the fee for the electrical permit in the general building permit, but the permit may not be issued until the electrical contractor has signed the permit accepting responsibility for the electrical installation.
The electrical contractor MUST hold a valid Wyoming electrical contractor's license, and all individuals working on the job must hold valid Wyoming electrical journeyman and/or apprentice licenses and meet all requirements of Wyoming State electrical licensing. The City of Green River requires inspections be done in order to issue the required certificate of occupancy before a building may be legally occupied.
If the electrical permit is obtained from State of Wyoming, as is required for cities not holding "home rule ", a copy of this permit must be presented and it must be a guaranteed inspection permit requiring service, before cover, and final inspections be done, and it shall be added to the project file before the general building permit may be issued.
Exception: A home owner may install electrical wiring on his primary residence. All other premises electrical wiring shall be installed by a Wyoming licensed electrical contractor.

Free Viewing of ICC 2018 Building Codes
The following links are provided courtesy of ICC for free viewing of all 2018 Codes to be adopted by the City. The codes provided can only be viewed and not copied or saved. They contain all the code language and tables exactly as published in the codebooks.
2018 IBC: https://codes.iccsafe.org/public/document/IBC2018
2018 IRC: https://codes.iccsafe.org/public/document/IRC2018
2018 IPC: https://codes.iccsafe.org/public/document/IPC2018
2018 IEBC: https://codes.iccsafe.org/public/document/IEBC2018
2018 IFGC: https://codes.iccsafe.org/public/document/IFGC2018
2018 IPMC: https://codes.iccsafe.org/public/document/IPMC2018
2018 IFC: https://codes.iccsafe.org/public/document/IFC2018

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