Francis Vineyard
Registered User
So I wonder was intentional or overlooked?JBI said:
The requirement for one habitable room with a minimum floor area of 120 sf has been removed from the 2015 R304.1. R305 also reduced the ceiling height to 6 ft. 8 inches for bathrooms, toilet rooms, and laundryrooms.
R304.1 Minimum area.
Habitable rooms shall have a floor area of not less than 70 sf.
Exception: Kitchens.
R305.1 Minimum height.
Habitable space, hallways and portions of basements containing these spacesshall have a ceiling height of not less than 7 ft. Bathrooms, toiletrooms and laundry rooms shall have a ceiling height of not less than 6 ft 8 inches.
Exceptions:
1. For rooms with sloped ceilings, the required floor area of the room shall have a ceiling height of not less than 5 ft and not less than 50percent of the required floor area shall have a ceiling height of not less than7 ft.
2. The ceiling height above bathroom and toilet room fixtures shall be suchthat the fixture is capable of being used for its intended purpose. A shower or tub equipped with a showerhead shall have a ceiling height of not less than 6 ft 8 inches above an area of not less than 30 inches by 30 inches at the showerhead.
3. Beams, girders, ducts or other obstructions in basements containing habitable space shall be permitted to project to within 6 feet 4 inches of the finished floor.
R305.1.1 Basements.
Portions of basements that do not contain habitable space or hallways shallhave a ceiling height of not less than 6 feet 8 inches.
Exception: At beams, girders,ducts or other obstructions, the ceiling height shall be not less than 6 ft 4inches from the finished floor.
But the 2015 IPMC remains unchanged.
404.3 Minimum ceiling heights.
Habitable spaces, hallways,corridors, laundry areas, bathrooms, toilet rooms and habitable basement areas shall have a minimumclear ceiling height of 7 ft.
Exceptions:
1. In one- and two-family dwellings, beams or girders spaced not less than 4 ft on center and projecting a maximum of 6 inches belowthe required ceiling height.
2. Basement rooms in one- andtwo-family dwellings occupied exclusively for laundry, study or recreationpurposes, having a minimum ceiling height of 6 ft 8 inches with aminimum clear height of 6 ft 4 inches under beams, girders, ductsand similar obstructions.
3. Rooms occupied exclusively for sleeping, study or similar purposes andhaving a sloped ceiling over all or part of the room, with a minimum clearceiling height of 7 ft over not less than one third of the requiredminimum floor area. In calculating the floor area of such rooms, only thoseportions of the floor area with a minimum clear ceiling height of 5 ft shall be included.
404.4 Bedroom and living room requirements.
Every bedroom and living room shallcomply with the requirements of Sections 404.4.1 through 404.4.5.
404.4.1 Room area.
Every living room shall contain not less than 120 square feet and every bedroom shall contain not less than 70 sf and every bedroom occupied by more than one person shall contain not less than 50 sf of floor area for each occupant thereof.
