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<br />.GENERAL ORDINANCES 297
<br />(b) The windows of every sleeping room shall be arranged
<br />to open to the extent of one-half their area.
<br />(c) In every building every sleeping room shall be, for at
<br />least two-thirds of its area, not less than seven (7) feet high
<br />from the finished floor to the finished ceiling, and shall be not
<br />less than seven (7) feet in width at its narrowest point, and
<br />have an area of not less than seventy (70) square feet, except
<br />that in hotels the area shall not be less than eighty (80) square
<br />f eet.
<br />Sec. 494(33). Chimneys and fireplaces.
<br />(a) Except as herein provided all chimneys in every building
<br />hereafter erected, and all chimneys hereafter altered or rebuilt
<br />shall be constructed of brick, stone, or concrete. No masonry
<br />chimney shall have walls less than eight (8) inches thick unless
<br />it be lined on the inside with well -burned terra cotta or fire clay
<br />chimney tile set in Portland Cement Mortar in which case the
<br />wall shall be not less than four (4) inches thick. The lining
<br />shall be continuous from the bottom of the flue to its extreme
<br />height. In concrete chimney an air space of not less than 1 inch
<br />shall be left between the concrete and flue lining.
<br />(b) No chimney shall be corbeled out more than eight (8)
<br />inches from a brick wall, and such corbeling shall consist of at
<br />least five courses of brick.
<br />(c) All chimneys shall be capped with terra cotta, brick, stone,
<br />concrete or cast iron.
<br />(d) The smoke flue of every high pressure steam boiler and
<br />every appliance producing a corresponding temperature in a flue,
<br />if built of brick, stone, reinforced concrete or other approved
<br />masonry, shall have walls not less than twelve (12) inches thick,
<br />and the inside four (4) inches of such walls shall be fire brick,
<br />laid in fire clay mortar, for a distance of at least twenty-five (25)
<br />feet from the point where the smoke connection of the boiler en-
<br />ters the flue.
<br />(e) The top of, or any openings in, a chimney shall be at
<br />least three feet above the nearest partition of the roof.
<br />(f) No chimney in any building shall have wooden supports
<br />of any kind. Supports shall be incombustible and shall rest up-
<br />on the ground of the foundation, on approved mortar stumps.
<br />298 CHARLOTTESVILLE CITY CODE
<br />(g) All chimneys which are dangerous from any cause shall
<br />be repaired and made safe or taken down.
<br />(h) Metal smoke stacks may be permitted for boilers, fur-
<br />naces, and similar apparatus where large hot fires are used, pro-
<br />vided they may have a clearance from all combustible material
<br />of not less than one-half the diameter of the stack, but not less
<br />than fifteen (15) inches unless the combustible material be prop-
<br />erly guarded by loose -fitting metal shields, in which case the dis-
<br />tance shall not be less than 12 inches. Where such stack passes
<br />through a roof, it shall be guarded by a galvanized iron ventilat-
<br />ing thimble extending from at least nine (9) inches below the
<br />under side of the ceiling or roof beams, to at least nine (9)
<br />inches above the roof, and the diameter of the ventilating thim-
<br />ble shall be not less than thirty-six (36) inches greater than that
<br />of the smoke stack.
<br />(i) The fireback of every fireplace hereafter erected shall be
<br />not less than eight (8) inches in thickness of solid brickwork,
<br />nor less than twelve (12) inches of stone lined with firebrick.
<br />When a grate is set in a fireplace a lining of firebrick at least
<br />two (2) inches in thickness shall be added to the fireback; soap-
<br />stone, tile or cast iron may be used, if solidly backed with brick
<br />or concrete.
<br />(j) The walls of all incinerators connected with buildings
<br />shall be not less than eight (8) inches thick, the inside four (4)
<br />inches of which shall be constructed of standard well burned
<br />firebrick.
<br />' (k) All flue holes when not in use shall be closed with tight-
<br />fitting metal covers.
<br />Sec. 494(34). Wooden beams separated from masonry
<br />chimneys.
<br />(a) No wooden beams or joists shall be placed within two
<br />(2) inches of the outside face of chimney or flue, whether the
<br />same be for smoke, air or any other purpose.
<br />(b) No wooden furrying or studding shall be placed against
<br />any chimney, the plastering shall be directly on the masonry, or
<br />on metal lathing and furring.
<br />(c) Woodwork fastened to plaster which is against the ma -
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<br />GENERAL ORDINANCES 299
<br />sonry of a chimney shall have a layer of asbestos board at least
<br />%J inch thick placed between the woodwork and the plaster.
<br />Sec. 494(35). Smoke pipes.
<br />(a) No smoke pipe shall be within six (6) inches of any wood-
<br />work, or any wooden lath and plaster partition or ceiling.
<br />(b) Where smoke pipes pass through a wooden lath and plas-
<br />ter partition, they shall be guarded by galvanized iron ventilated
<br />thimbles at least twelve (12) inches larger in diameter than the
<br />pipes, or by galvanized iron thimbles built in at least eight (8 )
<br />inches of brick work or other incombustible material.
<br />No smoke pipe shall pass through any floor or a roof having
<br />wooden framework except as specified in section 494(33).
<br />Sec. 494(36). Hot air pipes and registers.
<br />(a) All heater pipes from hot air furnaces, where passing
<br />through combustible partitions or floors, must be covered with
<br />standard asbestos covering. Horizontal hot air pipes leading
<br />from furnace shall be not less than six (6) inches from any
<br />woodwork, unless the woodwork be covered with loose fitting tin
<br />or metal plate, or the pipe be covered with at least / inch of
<br />asbestos, or in which latter case the distance from the woodwork
<br />may be reduced to not less than three (3) inches.
<br />(b) No hot air pipe shall be placed in a wooden stud partition
<br />or any wooden enclosure unless it be at least five (5) feet hori-
<br />zontal distance from the furnace.
<br />(c) Every hot air furnace shall have at least one register with-
<br />out valve or louvres.
<br />(d) A register box placed in the floor over a pipeless furnace
<br />shall have an open space around it of not less than four (4)
<br />inches on all sides, and be supported by an incombustible border.
<br />(e) Hot air registers placed in any woodwork or combustible
<br />floors shall be surrounded with borders of incombustible material
<br />not less than two (2) inches wide, securely set in place.
<br />(f) The register boxes shall be of metal, and be double; the
<br />distance between the two shall be not less than 1 inch, or they
<br />may be single if covered with asbestos not less than / inch in
<br />thickness and if all woodwork within two (2) inches be covered
<br />with tin.
<br />3OO CHARLOTTESVILLE CITY CODE
<br />(g) Cold air ducts for hot air furnaces shall be made of in-
<br />combustible material.
<br />Sec. 494(37). Dry rooms.
<br />(a) All dry rooms shall be constructed in accordance with the
<br />latest regulation of the National Board of Fire Underwriters.
<br />Sec. 494(38). Stoves and ranges.
<br />(a) No kitchen range or stove in any building shall be placed
<br />less than three (3) feet from any woodwork or wooden lath and
<br />plaster partition, unless the woodwork or partition is properly
<br />protected by metal shields; in which case the distance shall be not
<br />less than twelve (12) inches. Metal shields shall be loosely at-
<br />tached, thus preserving an air space behind them.
<br />(b) Hotel and restaurant ranges shall be provided with a metal
<br />hood, placed at least nine (9) inches below any wooden lath and
<br />plaster or wooden ceiling, and have an individual pipe outlet con-
<br />nected with a bent flue. The pipe shall be protected by at least
<br />one inch of asbestos covering or its equivalent.
<br />(c) Combustible floors under coal ranges and similar appli-
<br />ances without legs, such as mentioned in subsection 39, in which
<br />hot fires are maintained, shall rest upon six (6) inch foundations
<br />built of incombustible materials supported within the thickness of
<br />the floor framing. Such hearths shall extend at least twenty-
<br />four inches in front and twelve (12) inches on the sides and back
<br />of the range or similar heating appliance.
<br />(d) All coal stoves or ranges, with legs, shall be set on incom-
<br />bustible material which shall extend at least twelve (12) inches
<br />in front.
<br />Sec. 494(39). Furnaces and appliancea.
<br />(a) Any woodwork, wooden lath and plaster partition or ceil-
<br />ing within four (4) feet of the sides or back, or six (6) feet
<br />from the front of any heating boiler, furnace, bakery oven, coffee
<br />roaster, fire heated candy kettle, laundry, stove or other similar
<br />appliance shall be covered with metal to a height of at least four
<br />(4) feet above the floor. This covering shall extend the full
<br />length of the boiler, furnace, or heating appliance, and to at least
<br />five (5) feet in front of it. Metal shields shall be loosely at-
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