Updated : 04/22/2024

Overview

Louisville, CO adopts the following codes:

• The International Building Code, 2018 edition, including Appendices C, F, I, J, K, and N. Louisville, CO Muni. Code § 15.04.010 (adopted) with amendments throughout Chapter 15.04.
• The International Residential Code, 2018 edition, including Appendices A, B, C, D, F, G, H, J, M, N, P, S, and T. Louisville, CO Muni. Code § 15.05.010 (adopted) with amendments throughout Chapter 15.05.
• The International Existing Building Code, 2018 edition. Louisville, CO Muni. Code § 15.14.010 (adopted) with amendments at § 15.14.020.
• The International Property Maintenance Code, 2018 edition. Louisville, CO Muni. Code § 15.21.010 (adopted) with amendments at § 15.21.020.
• The Uniform Code for the Abatement of Dangerous Buildings, 1997 edition. Louisville, CO Muni. Code § 15.22.010 (adopted) with amendments at § 15.22.020.

Helpful resources for Louisville, Colorado include the following.

• PLRB, Ordinance and Law Coverage Discussion for Colorado

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.

Louisville adopted the 2018 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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2018 IRC(Louisville, CO Sec. 15.05.030. - Amendments to the 2018 International Residential Code.)

...The following amendments set forth in sections 15.05.040 through 15.05.220 are made to the 2018 International Residential Code. (Ord. No. 1764-2018, § 2, 9-4-2018)...

Drip Edge

Drip Edge: yes

Ice Barrier

Are ice barriers required for Louisville ? Yes
Citation: Louisville, CO Muni. Code § 15.05.110.
Municipal Code https://library.municode.com/co/louisville/codes/code_of_ordinances?nodeId=TIT15BUCO_CH15.05INRECO_S15.05.110TAR31RE
Comments:

TABLE R301.2(1)
CLIMATE AND GEOGRAPHIC DESIGN CRITERIA

GROUND SNOW LOAD	WIND DESIGN				SEISMIC DESIGN CATEGORY f	SUBJECT TO DAMAGE FROM			WINTER DESIGN TEMP b	ICE BARRIER UNDER- LAYMENT RE- QUIRED h	FLOOD HAZARDS g	AIR FREEZING INDEX i	MEAN ANNUAL TEMP i
	Speed d (mph)	Topo- graphic effects k	Special wind region l	Windborne debris zone m		Weathering a	Frost line depth b	Termite c
30 lbs	115 mph 3 Sec Gust	B	YES	"C" Unless Proven	B	Severe -5B	36	Slight	1 Degree	Yes	2012	1000- 2000	47 Degrees

Comments

Louisville, CO adopts the International Residential Code, 2018 edition, including Appendices A, B, C, D, F, G, H, J, M, N, P, S, and T. Louisville, CO Muni. Code § 15.05.010 (adopted) with amendments throughout Chapter 15.05.

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.

Louisville, CO adopts the following codes:

• The International Property Maintenance Code, 2018 edition. Louisville, CO Muni. Code § 15.21.010 (adopted) with amendments at § 15.21.020.
• The Uniform Code for the Abatement of Dangerous Buildings, 1997 edition. Louisville, CO Muni. Code § 15.22.010 (adopted) with amendments at § 15.22.020.

Also, refer to Appendix J of the adopted 2018 IRC.

Commercial Building Code

Louisville adopted the 2018 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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2018 IBC(Louisville, CO Sec. 15.04.030. - Appendices adopted.)

...The following appendices of the 2018 International Building Code are hereby specifically adopted; any appendices not listed are not adopted: Appendix C, Group U - Agricultural Buildings; Appendix F, Rodent proofing; Appendix I, Patio Covers; Appendix J, Grading; Appendix K, Administrative Provisions; and Appendix N, Replicable Buildings....

Comments

Louisville, CO adopts the International Building Code, 2018 edition, including Appendices C, F, I, J, K, and N. Louisville, CO Muni. Code § 15.04.010 (adopted) with amendments throughout Chapter 15.04.

Existing Buildings

Louisville, CO adopts the following codes:

• The International Existing Building Code, 2018 edition. Louisville, CO Muni. Code § 15.14.010 (adopted) with amendments at § 15.14.020.
• The International Property Maintenance Code, 2018 edition. Louisville, CO Muni. Code § 15.21.010 (adopted) with amendments at § 15.21.020.
• The Uniform Code for the Abatement of Dangerous Buildings, 1997 edition. Louisville, CO Muni. Code § 15.22.010 (adopted) with amendments at § 15.22.020.

Other Building Codes