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Gaithersburg, Maryland Building Codes

Updated : 04/22/2024

Overview

Gaithersburg, MD, adopted the 2012 IBC and IRC with amendments. Gaithersburg, MD, County Code § 5-1 (adopt IBC), § 5-3 (amend IBC), § 5-4 (adopt IRC), and § 5-5 (amend IRC).

Helpful resources for Gaithersburg, Maryland include the following.

Residential Building Code

Maryland adopted a model state residential code but it is not in force unless adopted locally.See PLRB, Maryland Building Codes for more information on state level codes.

Gaithersburg adopted the 2012 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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Maryland Bldg. Performance Standards (2021 IRC)(some jurisdictions are allowed to adopt earlier editions)(Gaithersburg, MD Sec. 5-4. - Building Code—Adoption of the International Residential Code (2021).)

...The International Residential Code (2021), unless specified otherwise, as published by the International Code Council, Inc., is hereby adopted as the building code for one- and two-family dwellings and townhouses in the city, except as modified by section 5-5. (Ord. No. O-9-22...

Drip Edge

Drip Edge: Yes

Ice Barrier

Comments

Gaithersburg, MD, adopted the 2012 IRC with amendments. Gaithersburg, MD, County Code  § 5-4 (adopt IRC), and § 5-5 (amend IRC).

 

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.

In the amendments, Gaithersburg, MD, adopts Appendix J as part of the code. Harford County, MD, County Code § 82-4 (3). Appendix J provides guidance on existing buildings.

 

Commercial Building Code

Gaithersburg adopted the 2012 IBC, statewide with limitations. 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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Maryland Bldg. Performance Standards (2021 IBC)(Gaithersburg, MD Municipal Code)

...Adoption not found...

Comments

Gaithersburg, MD, adopted the 2012 IBC with amendments. Gaithersburg, MD, County Code § 5-1 (adopt IBC), § 5-3 (amend IBC).

Existing Buildings

Gaithersburg, MD, does not appear to have adopted the IEBC.

Regarding additional fire safety requirements:

"ARTICLE VI. – ADDITIONAL FIRE SAFETY REQUIREMENTS FOR CERTAIN MULTI-FAMILY RESIDENTIAL STRUCTURES

Sec. 5-12. – Automated sprinkler systems.

(a) A vacant multi-family residential structure containing four (4) or more dwelling units may not be reoccupied until automated sprinkler systems are installed pursuant to the requirements of the applicable National Fire Protection Association Sprinkler Standard."

Other Building Codes

2012 International Mechanical Code (IMC)
2012 International Fuel Gas Code (IFGC)
2012 International Energy Conservation Code (IECC)
2012 Life Safety Code – NFPA 101(LSC)
2011 National Electric Code – NFPA 70 (NEC)
Maryland Accessibility Code – ADAAG/2010

2003 International Property Mantainance Code: