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<br />C. 7, § 39 BUILDING CODE
<br />C. 7, § 39
<br />One story building—seventy-five hundred square feet.
<br />Two story building—five thousand square feet.
<br />In no case shall the extreme projection of a frame building be
<br />erected within five feet of the side or rear lot line, nor within ten
<br />feet of another building on the same lot, unless the space between
<br />the studs on such side be filled solidly with not less than two and
<br />one-half inches of brick work or other equivalent. incombustible
<br />material, in which case said distances may be reduced to three feet.
<br />Rows of frame tenement houses are prohibited. Duplex or
<br />double frame houses shall be permitted.
<br />Buildings with wooden framework clad with sheet metal, or
<br />veneered with brick, shall be classed as frame buildings.
<br />The maximum spacing for studding and joists shall be sixteen
<br />inches on centers, that for rafters twenty-four inches. Studding
<br />in external ;walls and all partitions of dwellings shall be not less
<br />than standard two by fours standing, with studs set the four -inch
<br />way for thickness of walls. The exterior of the framework of all
<br />dwellings shall be sheathed with sheathing not less than three-
<br />fourths inches thick. In case of built-up beams or girders, the
<br />splicing of members shall be made over supports. In case of house
<br />to be weatherboarded, sheathing may be omitted if framework is
<br />sufficiently braced against wind pressure.
<br />Where the frame is properly cross -braced, sheathing may be
<br />eliminated and wood laths embedded in asphaltic binder directly
<br />connected to heavy felt roofing material may be applied directly
<br />to the studding when stuccoed according to provisions elsewhere
<br />outlined in this chapter. Such lathing material shall meet the ap-
<br />proval of the building inspector. Where wire or metal laths are
<br />used on sheathing board there must be a furring strip one-half
<br />inch thick placed not more than sixteen inches on centers.
<br />All floors of wood construction in dwellings shall be constructed
<br />of not less than two by eight standard wood joists. All joists and
<br />studding around openings such as doors and windows shall be
<br />doubled. Openings more than four feet wide in bearing partitions
<br />shall be trussed or framed over with beams of ample size to carry
<br />the full load above. All headers over four feet in length that butt
<br />into trimmers shall be carried on metal joist hangers or mortised
<br />and tenoned headers and trimmers. There shall be at least one
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<br />C. 7, § 41 BUILDING CODE C. 7, § 43
<br />Hotels (upper floors), apartment houses, dormitories,
<br />hospitals ..................................... 60 lbs.
<br />Schools.......................................... 75 lbs.
<br />Office buildings (ground floor), corridors, stairs and lob-
<br />bies in all buildings of public nature .............. 90 lbs.
<br />Assembly rooms, mains floors of theatres, ballrooms,
<br />gymnasiums or any rooms to be used for drilling,
<br />dancing, grandstands, ordinary stores for light stock 120 lbs.
<br />Warehouses and light manufacturing .......... 150 to 300 lbs.
<br />Special provision shall be made for heavy concentrated loads.
<br />An addition of fifty per cent shall be made for floors carrying
<br />moving or travelling machinery. (Id.)
<br />Sec. 41. Fire walls in tenement houses.
<br />In rows of tenements constructed of brick or other similar ma-
<br />terial there shall be a twelve -inch fire wall between each two units.
<br />(Id.)
<br />Sec. 42. Specifications for sleeping rooms.
<br />In all buildings every sleeping room shall be provided with a
<br />window opening directly upon a street, yard or court, which
<br />windows or openings shall equal in area to at least one-tenth of
<br />the floor area of the room.
<br />The windows of every sleeping room shall be arranged to open
<br />to the extent of one-half their area.
<br />In every building every sleeping room shall be, for at least two-
<br />thirds of its area, not less than seven feet high from the finished
<br />floor to the finished ceiling, and shall be not less than seven feet in
<br />width at its narrowest point, and have an area of not less than
<br />seventy square feet, except that in hotels the area shall not be less
<br />than eighty square feet. ( Code 1932, § 494(32).)
<br />Sec.. 43. Chimneys, fireplaces, etc.
<br />Except as herein provided all chimneys in every building here-
<br />after erected, and all chimneys hereafter altered or rebuilt shall be
<br />constructed of brick, stone or concrete. No masonry chimney
<br />Ch -lo 145
<br />C. 7, § 40 CHARLOTTEVILI,t CITY CODE C. 7, § 40
<br />horizontal row of two by four pieces in each story to provide a fire
<br />stop closing off the entire space between studding. (Code 1932,
<br />§ 494(31).)
<br />Sec. 40. Joists and floor loads.
<br />The following schedule of joist sizes and
<br />spacings shall be
<br />followed as a minimum for dwellings and tenements, assuming a
<br />total load dead and live for sixty pounds to a
<br />square foot using
<br />seasoned short leaf yellow pine lumber.
<br />Maximuni Span for Floor Joist
<br />Distance between
<br />Size or Equivalent Distance on Centers
<br />Bearings
<br />2"x8" 12"
<br />14'0"
<br />16"
<br />12' 8"
<br />3" x 8" 12"
<br />16 0"
<br />16"
<br />14' 6"
<br />2" x 10" 12"
<br />17' 6"
<br />16"
<br />15' 9"
<br />3" x 10" 12"
<br />19' 3"
<br />16"
<br />17' 6"
<br />2" x 12" 12"
<br />20' 0"
<br />16"
<br />18' 0"
<br />3" x 12" 12"
<br />23' 0"
<br />16"
<br />21' 0"
<br />2" x 14" 12"
<br />23, 8"
<br />16"
<br />21' 6"
<br />2/" x 14" 12"
<br />25, 6"
<br />16"
<br />23' 0"
<br />3" x 14" 12"
<br />27' 0"
<br />16"
<br />24' 6"
<br />In all buildings hereafter erected, altered, or repaired (where
<br />such alterations or repair, in the judgment of the building inspec-
<br />tor shall require new floor construction), all floor construction shall
<br />be constructed in accordance with the following table of minimum
<br />live load requirements:
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<br />C. 7, § 43 CHARLOTTESVILLE CITY CODE C. 7, § 43
<br />shall have walls less than eight inches thick unless it be lined on
<br />the inside with well -burned terra cotta or fire clay chimney tile set
<br />in Portland cement mortar in which case the wall shall be not less
<br />than four inches thick. The lining shall be continuous from the
<br />bottom of the flue to its extreme height. In concrete chimney an
<br />air space of not less than one inch shall be left between the con-
<br />crete and flue lining.
<br />No chimney shall be corbeled out more than eight inches from
<br />a brick wall, and such corbeling shall consist of at least five courses
<br />of brick.
<br />All chimneys shall be capped with terra cotta, brick, stone, con-
<br />crete or cast iron.
<br />The smoke flue of every high pressure steam boiler and every
<br />appliance producing a corresponding temperature in a flue, if built
<br />of brick, stone, reinforced concrete or other approved masonry,
<br />shall have walls not less than twelve inches thick, and the inside
<br />four inches of such walls shall be fire brick, laid in fire clay mortar,
<br />for a distance of at least twenty-five feet from the point where the
<br />smoke connection of the boiler enters the flue.
<br />The top of, or any openings in, a chimney shall be at least three
<br />feet above the nearest partition of the roof.
<br />No chimney in any building shall have wooden supports of any
<br />kind. Supports shall be incombustible and shall rest upon the
<br />ground or the foundation on approved mortar stumps.
<br />All chimneys which are dangerous from any cause shall be re-
<br />paired and made safe or taken down.
<br />Metal smokestacks may be permitted for boilers, furnaces and
<br />similar apparatus where large hot fires are used, provided they
<br />may have a clearance from all combustible material of not less than
<br />one-half the diameter of the stack, but not less than fifteen inches
<br />unless the combustible material be properly guarded by loose -fit-
<br />ting metal shields, in which case the distance shall not be less than
<br />twelve inches. Where such stack passes through a roof, it shall be
<br />guarded by a galvanized iron ventilating thimble extending from
<br />at least nine inches below the under side of the ceiling or roof
<br />beams to at least nine inches above the roof, and the diameter of
<br />the ventilating thimble shall be not less than thirty-six inches
<br />greater than that of the smokestack.
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