Baltimore City Code, Building Codes, Part V, Section 601 General
Section 601. General
{As in IMC}
Duct Systems
Baltimore City Code div. Building Codes, pt. V, ch. 6
in effectBaltimore City Code, Building Codes, Part V, Section 602 Plenums
Section 602. Plenums
602.1 to 602.2 {As in IMC}
602.3 Stud cavity and joist space plenums. {As in IMC}
1. - 6. {As in IMC}
7. Stud wall cavities and spaces between solid floor joists abutting garage walls may not be utilized as air plenums.
602.4 Flood hazard areas.
For structures in a flood hazard area, plenum spaces must be located above the elevation required by the Floodplain Management Code for electric, plumbing, and mechanical systems and their attendant components and equipment or designed and constructed to prevent water from entering or accumulating within the plenum spaces during floods up to that elevation, if allowed by the requirements of the Floodplain Management Code.
Baltimore City Code, Building Codes, Part V, Section 603 Duct Construction and Installation
Section 603. Duct Construction and Installation
603.1 to 603.12 {As in IMC}
603.13 Flood hazard areas.
For structures in a flood hazard area, ducts must be located above the elevation required by the Floodplain Management Code for electric, plumbing, and mechanical systems and their attendant components and equipment or designed and constructed to prevent water from entering or accumulating within the ducts during floods up to that elevation, if allowed by the requirements of the Floodplain Management Code.
603.14 to 603.18 {As in IMC}
Baltimore City Code, Building Codes, Part V, Sections 604 to 608
Sections 604 to 608.
{As in IMC}
(Ord. 24-341 Section 1.)
Source: City of Baltimore Department of Legislative Reference, City of Baltimore Law Library (codes.baltimorecity.gov; Open Law Library bulk XML)URL: https://codes.baltimorecity.gov/us/md/cities/baltimore/code/building-codes/V/6Fetched: 10/25/2026