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There are no suggested sections in this chapter.
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There are no amended sections in this chapter.
This appendix shall be applicable to tiny houses used as single dwelling units. Tiny houses shall comply with this code except as otherwise stated in this appendix.
The following words and terms shall, for the purposes of this appendix, have the meanings shown herein. Refer to Chapter 2 of this code for general definitions.
EGRESS ROOF ACCESS WINDOW. A skylight or roof window designed and installed to satisfy the emergency escape and rescue opening requirements in Section R310.2.
LANDING PLATFORM. A landing provided as the top step of a stairway accessing a loft.
LOFT. A floor level located more than 30 inches (762 mm) above the main floor and open to it on at least one side with a ceiling height of less than 6 feet 8 inches (2032 mm), used as a living or sleeping space.
TINY HOUSE. A dwelling that is 400 square feet (37 m ) or less in floor area excluding lofts.
EGRESS ROOF ACCESS WINDOW. A skylight or roof window designed and installed to satisfy the emergency escape and rescue opening requirements in Section R310.2.
LANDING PLATFORM. A landing provided as the top step of a stairway accessing a loft.
LOFT. A floor level located more than 30 inches (762 mm) above the main floor and open to it on at least one side with a ceiling height of less than 6 feet 8 inches (2032 mm), used as a living or sleeping space.
TINY HOUSE. A dwelling that is 400 square feet (37 m ) or less in floor area excluding lofts.
Habitable space and hallways in tiny houses shall have a ceiling height of not less than 6 feet 8 inches (2032 mm). Bathrooms, toilet rooms, and kitchens shall have a ceiling height of not less than 6 feet 4 inches
(1930 mm). Obstructions shall not extend below these minimum ceiling heights including beams, girders, ducts, lighting and other obstructions.
Exception:
Ceiling heights in lofts are permitted to be less than 6 feet 8 inches (2032 mm).
Lofts used as a sleeping or living space shall meet the minimum area and
dimension requirements of Sections AV104.1.1 through AV104.1.3.
Lofts shall have a floor area of not less than 35 square feet (3.25 m ).
Lofts shall be not less than 5 feet (1524 mm) in any horizontal dimension.
Portions of a loft with a sloping ceiling measuring less than 3 feet (914 mm) from the finished floor to the finished ceiling shall not be considered as contributing to the minimum required area for the loft.
Exception:
Under gable roofs with a minimum slope of 6:12, portions of a loft with a sloping ceiling measuring less than 16
inches (406 mm) from the finished floor to the finished ceiling shall not be considered as contributing to the minimum required
area for the loft.
The access to and primary egress from lofts shall be any type described in Sections AV104.2.1 through AV104.2.4.
Stairways accessing lofts shall comply with this code or with Sections AV104.2.1.1 through AV104.2.1.5.
The top tread and riser of stairways accessing lofts shall be constructed as a landing platform where the loft ceiling height is less than 6 feet 2 inches (1880 mm) where the stairway meets the loft. The landing platform shall be 18 inches to 22 inches (457 to 559 mm) in depth measured from the nosing of the landing platform to the edge of the loft, and 16 to 18 inches (406 to 457 mm) in height measured from the landing platform to the loft floor.
Handrails shall comply with Section R311.7.8.
Ladders accessing lofts shall comply with Sections AV104.2.1 and AV104.2.2.
Ladders accessing lofts shall have a rung width of not less than 12 inches (305 mm) and 10 inches (254 mm) to 14 inches (356 mm) spacing between rungs. Ladders shall be capable of supporting a 200
pound (75 kg) load on any rung. Rung spacing shall be uniform within 3/8-inch (9.5 mm).
Ladders shall be installed at 70 to 80 degrees from horizontal.
Alternating tread devices accessing lofts shall comply with Sections R311.7.11.1 and R311.7.11.2. The clear width at and below the handrails shall be not less than 20 inches (508 mm).
Ships ladders accessing lofts shall comply with Sections R311.7.12.1 and R311.7.12.2. The clear width at and below handrails shall be not less than 20 inches (508 mm).
Tiny houses shall meet the requirements of Section R310 for emergency escape and rescue openings.
Exception:
Egress roof access windows in lofts used as sleeping rooms shall be deemed to meet the requirements of Section R310 where installed such that the bottom of the opening is not more than 44 inches (1118 mm) above the loft floor, provided the egress roof access window complies with the minimum opening area requirements of Section R310.2.1.
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