Boulder county building code amendments

Overview

• The International Building Code, 2015 edition, including specifically Appendix Chapters C, I, J, and K, with amendments.
• The International Residential Code, 2015 edition, including specifically Appendix Chapters E, F, H, R, and S, with amendments.
• The International Existing Building Code, 2015 edition, with amendments.

Helpful resources for Boulder County, Colorado include the following.

Residential Building Code

Colorado has yet to adopt a statewide residential code. Local laws will control.See PLRB, Colorado Building Codes for more information on state level codes.

Boulder County adopted the 2015 IRC, locally. 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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. (a) The 2018 edition of the International Residential Code of the International Code Council is hereby adopted by reference as the City of Boulder Residential Building Code and has the same force and effect as though fully set forth in this chapter, except as specifically amended by the provisions.

Drip Edge

Ice Barrier

TABLE R301.2(1)

CLIMATIC AND GEOGRAPHIC DESIGN CRITERIA

GROUND SNOW LOAD

WIND SPEED

TOPOGRAPHIC EFFECTS

SPECIAL WIND REGION

SEISMIC DESIGN CATEGORY

WEATHERING

FROST LINE DEPTH

TERMITE

Slight to Moderate

WINTER DESIGN TEMPERATURE

SUMMER DESIGN TEMPERATURE

ICE BARRIER UNDERLAYMENT REQUIRED

FLOOD HAZARDS

AIR FREEZING INDEX

ANNUAL MEAN TEMPERATURE

ANTICIPATED SNOW DEPTH

Plains

Mountains

Comments

Boulder County, CO adopts the International Residential Code, 2015 edition, including specifically Appendix Chapters E, F, H, R, and S, with amendments.

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.

There is no mention of the adoption of Appendix J of the 2015 IRC.

Commercial Building Code

Boulder County adopted the 2015 IBC, locally. 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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. (a) The 2018 edition of the International Building Code of the International Code Council is hereby adopted by reference as the City of Boulder Building Code and has the same force and effect as though fully set forth in this chapter, except as specifically amended by the provisions of this chapter.

Comments

Boulder County, CO adopts the International Building Code, 2015 edition, including specifically Appendix Chapters C, I, J and K, with amendments.

Existing Buildings

Boulder County, CO adopts the International Existing Building Code, 2015 edition, with amendments.

Other Building Codes

Boulder County, CO also adopts the following codes:

• The International Mechanical Code, 2015 edition, with amendments.
• The International Plumbing Code, 2015 edition, with amendments.
• The International Fuel Gas Code, 2015 edition, with amendments.
• The International Energy Conservation Code, 2015 edition, with amendments.
• The International Green Construction Code, 2015 edition, with amendments.
• The International Code Council Performance Code, 2015 edition, with amendments.
• The International Swimming Pool and Spa Code, 2015 edition, with amendments.

The State of Colorado (PLRB) adopts the National Electrical Code (NFPA 70), 2020 edition.