Updated : 04/22/2024

Overview

Montgomery County, MD, adopted the 2015 IBC and IRC, Montgomery County Code Executive Regulation 4-15AMII.

Helpful resources for Montgomery County, Maryland include the following.

• PLRB, Ordinance and Law Coverage Discussion for Maryland

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.

Montgomery 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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See Amlegal(Montgomery County, MD Sec. 25-53. Compliance with building code.)

...Cross reference- Building code, ch. 8 ....

Drip Edge

Drip Edge: yes

Ice Barrier

Are ice barriers required for Montgomery County ? Yes
Citation: Table R301.2(1)
Municipal Code https://www.montgomerycountymd.gov/DPS/Resources/Files/RCI/ResidentialConstructionDesignParameters.pdf
Comments:

Residential Construction Design Parameters
Ground Snow Load	Wind Speed	Seismic Design Category	Subject To Damage From				Winter Design Temp.	Flood Hazards	Air Freezing Index	Mean Annual Temp.
			Weathering	Frost Line Depth	Termite	Decay
30 PSF (1.4 kN/m²)	115 mph (185 km/hr)	B	Severe	30 in (610 mm)	Moderate to heavy	Slight to moderate	Yes	a) July 18, 1975 b) September 29, 2006 c) See note	300	55°F (12.8°C)

https://www.montgomerycountymd.gov/DPS/Resources/Files/RCI/ResidentialConstructionDesignParameters.pdf

Comments

Montgomery County, MD, adopted the 2015 IBC and IRC, Montgomery County Code Executive Regulation 4-15AMII.

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, the county adopts Appendix J as part of the code. Montgomery County, MD, County Code 08.00.02.03. Section 101.1. Appendix J provides guidance on existing buildings.

Commercial Building Code

Montgomery 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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Maryland Bldg. Performance Standards (2018 IBC)(Montgomery County, MD Municipal Code)

...Adoption not found...

Comments

Montgomery County, MD, adopted the 2015 IBC and IRC, Montgomery County Code Executive Regulation 4-15AMII.

Existing Buildings

Montgomery County, MD, adopted the 2012 IEBC, Montgomery County Code Executive Regulation 4-15AMII.

Other Building Codes