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D.C. Municipal Regulations (Last Updated: September 13, 2017) |
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Title 14. HOUSING |
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Chapter 14-6. HOUSING CODE: FACILITIES, UTILITIES, AND FIXTURES |
Section 14-603. WATERPROOF FLOORS IN TOILETS
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603.1The owner of a building used for residential purposes shall provide each water closet compartment, privy, toilet room, and bathroom in the building with a waterproof floor surface and wall base.
603.2The wall base shall be at least three inches (3”) in height.
603.3The waterproof floor surface shall consist of one of the following:
(a)Smooth-finished tile or masonry which is effectively sealed so that it has a nonporous surface, laid in a manner free from cracks or open joints, and tightly joined to the base;
(b)Tongue-and-groove hardwood flooring that is tightly laid without open cracks or joints, and which is tightly joined to the base. Both the base and surface shall be covered with a seal coat of waterproof finish; or
(c)Linoleum, plastic, or rubber floor covering, or linoleum, asphalt, rubber or plastic floor tiles, firmly cemented to a smooth substantial subfloor, laid without overlapping or open joints, and tightly joined to the base.
603.4The term “linoleum” as used in this section, means a floor covering made of special preparations of linseed oil, gum, coloring matter, and wood flour, firmly affixed to a cloth or feltpaper base, and does not include enameled and cottonlinter composition coverings.