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§ 1517,21
<br />DWELLING HOUSE CODE
<br />connected to the stack; sometimes'called a
<br />waste vent or soil vent.
<br />Stack venting. A method of venting a fix-
<br />ture or fixtures through the soil stack or
<br />waste stack.
<br />Stair:
<br />Flight of -s or steps. A series of steps
<br />without an intervening platform or land-
<br />ing.
<br />- landing. A platform between flights of
<br />stairs or at,the termination of a flight of
<br />stairs,
<br />-rise. The vertical distance from the top
<br />of one stair tread to the top of the next
<br />tread.
<br />-run. The horizontal distance between
<br />the same face of two adjacent risers.
<br />-tread. The horizontal top surface of a
<br />step, including the run and the nosing,
<br />- winder. A curving alignment obtained
<br />by treads that are wider on the outside
<br />and less on the inside than the tread width
<br />prevailing on straight runs.
<br />Stairway, stair, or stairs. A series of steps,
<br />with or without landings, or platforms,
<br />usually between two or more floors of a
<br />building.
<br />Stairway:
<br />Enclosed -. A stairway enclosed and
<br />separated from hallways and living units
<br />by means of walls or partitions and made
<br />accessible to such hallways or living units
<br />by means of doors.
<br />Interior-. A stairway within the ex-
<br />terior walls of a building,
<br />Open -, A stairway, not completely en-
<br />closed or separated from hallways and liv-
<br />ing units by means of walls, partitions and
<br />doors.
<br />Stool. The flat, narrow shelf, forming the top
<br />member of the interior trim at the bottom
<br />of a window.
<br />Storage space. Any enclosed area, not less
<br />than 4 feet in clear height and not intended
<br />for another specific use, that may be used
<br />as depository or space for placement, of
<br />articles for indefinite periods of time.
<br />Storm drain. A drain used for conveying
<br />rain water, sub-surface water, condensate,
<br />cooling water, or other similar discharges.
<br />Storm sewer, A sewer which receives dis-
<br />charges from storm drains or carries off
<br />surface, sub-surface, or storm water from
<br />the ground, streets, roofs, or other areas,
<br />including street wash but not including
<br />Sewage: - - -
<br />24
<br />Story: That part of a building between any
<br />floor and the floor or roof next above, in-
<br />cluding abasement with a ceiling that is
<br />more than 4 feet, 6 inches above the sur-
<br />face of adjoining ground. See also: Story:
<br />half-.
<br />Attic -. That part of a building between
<br />the top-story ceiling and the roof, with a
<br />height less than that required for a half
<br />story. Compare: Story, half -,
<br />Half -. An uppermost story containing
<br />usable space, wholly or partly under a
<br />sloping roof, wherein the area of usable
<br />floor space having a clear height of 5 feet
<br />or more exceeds 50% of the floor area of
<br />the story directly below and the area of
<br />floor space of clear height of 7 feet or more
<br />does not exceed 60°fo of the floor area of
<br />the story directly below, Whenever such
<br />floor area 7 feet high exceeds the 60 per
<br />cent factor, it shall be deemed to be a full
<br />story.
<br />Subdrain, building. See Building subdrain,
<br />Subdrain, house. See Building subdrain.
<br />Subsoil drain. A drain installed for collect-
<br />ing subsurface or seeping water and con-
<br />veying it to a place of disposal.
<br />1517.21 Letter "T."
<br />Termite shield. A shield, usually of sheet
<br />metal, placed in or on a foundation wall or
<br />other mass of masonry or around pipes to
<br />prevent the passage of termites.
<br />Trap. A fitting or device so designed and
<br />. constructed as to provide a liquid seal
<br />which will prevent the back passage of
<br />gases without materially affecting the flow
<br />of sewage or waste water through it.
<br />Trap seal. The maximum vertical depth of
<br />liquid that a trap ,will retain, measured
<br />between the crown weir and the top of
<br />the dip of the trap.
<br />Trimmer. The beam or joist into which a
<br />header is connected in framing fora chim-
<br />ney, stairway, or other opening in a floor
<br />framing.
<br />Type A Flue. A flue of noncombustible, cor-
<br />rosion-resistant material, which meets the
<br />requirements specified in Chapter 59, for
<br />use with heat appliances burning solid or
<br />liquid fuel or producing flue gas tempera-
<br />tures greater than 550 F.
<br />Type B Gas Vent. Gas vent piping of non-
<br />combustible, corrosion-resistant material,
<br />which meets the requirements specified in
<br />Chapter 59, for use with gas-fired heat ap-
<br />pliances which produce flue gas tempera-
<br />
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<br />101
<br />Plumbing
<br />1593.06 Special materials.
<br />(a) Brass calking ferrules. Brass calking
<br />ferrules shall be of red brass pipe conform-
<br />ing to ASTM B 43 or of heavy cast red brass
<br />of weight and dimensions given in the follow-
<br />ing Table. Seamless copper ferrules may be
<br />used in lieu of cast brass provided they cor-
<br />respond in size and weight.
<br />BRASS CALKING FERRULES
<br /> Actual
<br />Pipe Inside Minimum
<br />Size Diameter Length Minimum
<br />(Inches) (Inches) (Inches) Weight
<br />2 21/4 41/z 1 lb.
<br />3 , 31/4 41/i l .lb. 12 oz,
<br />4 41/4 41/z 2 lb. 8 oz.
<br />(b) Soldering nipples and bushings. Sol-
<br />dering nipples and bushings shall be red
<br />brass pipe, standard size, conforming to
<br />ASTM B 43 or of heavy cast red brass.
<br />(c) Floor flanges. Floor flanges for
<br />plumbing fixtures shall be not less than 3/16
<br />inch thick when of cast-iron or galvanized
<br />malleable iron and not less than 1/s inch thick
<br />when of brass or hard lead and shall be of a
<br />type approved by the Building Official.
<br />1593.07 New materials, fixtures, and
<br />methods.
<br />(a) Approval. No plumbing material, de-
<br />vice, fixture, method of assemblage, installa-
<br />tion, appurtenance, or appliance other than
<br />those specified or permitted in this Dwelling
<br />House Code shall be installed unless it is
<br />approved by this Dwelling House Code or
<br />has been approved by the Board of Building
<br />Code Appeals and is installed in conformity
<br />with this Dwelling House Code or the con-
<br />ditions of such approval.
<br />(b) Tentative approval, If it is imprac-
<br />tical to conduct adequate tests prior to in-
<br />stallation, the Board of Building Code Ap-
<br />peals may grant tentative approval and per-
<br />mission to make the installation as proposed
<br />but final approval shall not be given until
<br />tests conducted after installation show that
<br />the material, device, fixture,, method of as-
<br />semblage, installation, appurtenance, or ap-
<br />pliance meets the intent of this Dwelling
<br />House Code, functions as. claimed and con-
<br />forms to the rules and regulations of the
<br />Board and of the Building Official,
<br />1593.08 Tightness of joints and comleciflons.
<br />Joints and connections in the plumbing
<br />and drainage system shall be gastight and
<br />watertight-for the pressures-required; with
<br />the exceptions of those portions of perforated
<br />§ 1593.14
<br />or open joint piping which are installed for
<br />the purpose of collecting and conveying
<br />ground or seepage water to the underground
<br />storm drains.
<br />1593.09 Calked joints.
<br />Calked joints for cast-iron bell-and-spigot
<br />soil pipe shall be firmly packed with oakum
<br />or hemp and filled with molten lead not less
<br />than 1 inch deep and calked tight. No paint,
<br />varnish, or other coatings shall be permitted
<br />on the jointing material until after the joint
<br />has been tested and approved,
<br />1593.10 Threaded joints (screwed joints).
<br />Threaded joints shall conform to American
<br />National Taper Pipe Thread, ASA B2.1 or
<br />FS GGG-P-351a. All burrs shall be removed.
<br />Pipe ends shall be reamed or filed out to size
<br />of bore, and all chips shall be removed, Pipe
<br />joint cement and paint shall be used only on
<br />male threads.
<br />1593.11 F1'iped joints.
<br />Joints in lead pipe or fittings, or between
<br />lead pipe or fittings and brass or copper pipe,
<br />ferrules, solder nipples, or traps, shall be
<br />full-wiped joints, Wiped joints shall have an
<br />exposed surface on each side of a joint not
<br />less than s/4 inch and at least as thick as the
<br />material being jointed, Wall or floor flange
<br />lead-wiped joints shall be made by using a
<br />lead ring or flange placed behind the joint at
<br />wall or floor. Joints between lead pipe and
<br />cast iron, steel or wrought iron shall be made
<br />by means of a calking ferrule, soldering nip-
<br />ple orbushing.
<br />1593.12 Soldered or sweat joints.
<br />(a) Technique. Soldered or sweat joints
<br />for tubing shall be made with fittings ap-
<br />proved by the Building Official. Surfaces to
<br />be soldered or sweated shall be cleaned
<br />bright, The joints shall be properly fluxed
<br />and made with solder in a manner approved
<br />by the Building Official.
<br />(b) Appropriate fittings. Joints in copper
<br />water tubing shall be made by the appro-
<br />priate use of brass water fittings, sweated or
<br />soldered together in a manner approved by
<br />the Building Official. ,
<br />1593.13 Flared joints.
<br />Flared joints for soft-copper water tubing
<br />shall be made with fittings approved by the
<br />Building Official. The tubing shall be ex-
<br />panded with a flaring tool.
<br />1593.14 Ilot-poured joints.
<br />Hot-poured compound for clay or concrete
<br />sewer pipe shall not be water absorbent and
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