Rockville, Maryland Building Codes

Updated : 04/22/2024

Overview

Rockville, MD, adopted the 2012 IBC and IRC with amendments. Rockville, MD, Municipal Code § 5-86 (adopt IBC), § 5-87 (amend IBC), § 5-101 (adopt IRC), and § 5-102 (amend IRC).

Helpful resources for Rockville, 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.

Rockville 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)(Rockville, MD Sec. 5-101. - International Residential Code for One- and Two-Family Dwellings—Adopted.)

...The International Code Council (ICC) International Residential Code for One- and Two-Family Dwellings, 2018 Edition, as modified herein, is hereby adopted as the residential code for the City. One (1) copy of such publication as adopted shall be housed by the Inspection Services Division and made available for inspection by the public during...

Drip Edge

Drip Edge: Yes

Ice Barrier

Comments

Rockville, MD, adopted the 2012 IBC and IRC with amendments. Rockville, MD, Municipal Code § 5-86 (adopt IBC), § 5-87 (amend IBC), § 5-101 (adopt IRC), and § 5-102 (amend IRC).

Rockville, MD, requires an ice barrier under-layment.

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.

Rockville, MD, follows the Maryland Building Rehabilitation Code which does NOT adopt IRC Appendix J (which provides guidance on existing buildings) as part of the code.

Commercial Building Code

Rockville 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)(Rockville, MD Municipal Code)

...Adoption not found...

Comments

Rockville, MD, adopted the 2012 IBC and IRC with amendments. Rockville, MD, Municipal Code § 5-86 (adopt IBC), § 5-87 (amend IBC), § 5-101 (adopt IRC), and § 5-102 (amend IRC).

Existing Buildings

Rockville, MD, follows the Maryland Building Rehabilitation Code which adopted the 2012 IEBC. 

Other Building Codes

Maryland Building Rehabilitation Code

BOCA National Property Maintenance Code, Fifth Edition, 1996

International Plumbing Code, 2012 Edition.

International Mechanical Code, 2012 Edition,

International Fuel Gas Code, 2012 Edition

International Energy Conservation Code, 2012 Edition