Updated : 04/22/2024

Overview

La Plata County, CO adopts the following codes:

• The International Building Code, 2015 edition, including Appendices C, H, and J. La Plata County, CO County Code § 18-31 (adopted) with Appendices at § 18-33 and amendments at § 18-38.
• The International Residential Code, 2015 edition, including Appendices A, B, C, D, E, F, G, J, N, P, R, S, and T. La Plata County, CO County Code § 18-31 (adopted) with Appendices at § 18-33 and amendments at § 18-36.

Helpful resources for La Plata County, 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.

La Plata 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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Drip Edge

Drip Edge: yes

Ice Barrier

Are ice barriers required for La Plata County ? Yes
Citation: La Plata County, CO County Code § 18-36.
Municipal Code https://online.encodeplus.com/regs/la-plata-co/doc-viewer.aspx#secid-2462
Comments:

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

 

Required minimum roof live load (Snow Load) See Table 301.2.(2)

Wind speed—90 MPH Basic, 115 MPH Ultimate (3 sec. gust) Exposure B or C applies (Table R301.2(3))

Seismic Design Category—B

Weathering—Severe

Frost depth—32 inches

Termite—Yes

Decay—None to slight

Winter design temperature—4 degrees F.

Mean annual temperature—52 degrees F.

Air freezing index—2000

Flood Hazard—Community NO. 080097 August 19, 2010 Flood Insurance Study: La Plata County, Colorado and Incorporated areas.  Volume 1 & 2 – Resolution 2014-30, Chapter 78 La Plata County Land Use Code

HDD—6981

Climate Zone 5

Ice barrier underlayment required

Radon protection requirements are set forth in the 2015 International Residential Code Appendix F, as amended, to provide a means of vacating radon gas from crawlspaces and under floor slabs when it is determined that radon gas exists after the completion of a home’s construction.

Comments

La Plata County, CO adopts the International Residential Code, 2015 edition, including Appendices A, B, C, D, E, F, G, J, N, P, R, S, and T. La Plata County, CO County Code § 18-31 (adopted) with Appendices at § 18-33 and amendments at § 18-36.

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.

Refer to Appendix J of the adopted 2015 IRC.

Commercial Building Code

La Plata 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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Comments

La Plata County, CO adopts the International Building Code, 2015 edition, including Appendices C, H, and J. La Plata County, CO County Code § 18-31 (adopted) with Appendices at § 18-33 and amendments at § 18-38.

Existing Buildings

Refer to Chapter 34 of the adopted 2015 IBC.

Other Building Codes