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§ 1555.06
<br />DWELLING HOUSE CODE
<br />b8
<br />(c) Copies o f test data. Copies of tests
<br />and such other records as the Building Offi-
<br />cial may designate shall be filed with him.
<br />1555.06 Sub-surface construction.
<br />The construction of sub-surface structures
<br />shall be of masonry or reinforced concrete
<br />as required by this Dwelling House Code, or
<br />of other durable water-resisting materials of
<br />adequate strength approved in each instance
<br />by the Building Official.
<br />1555.07 Supervision and inspection.
<br />(a) ,Site inspection. All parts of prefabri-
<br />cated buildings which are constructed at the
<br />site, and all prefabricated parts and panels
<br />in which structural members, materials, con-
<br />nections and mechanical and electrical
<br />equipment can be inspected visually, shall
<br />be made available at the building site for in-
<br />spection by the Building Official before and
<br />during erection.
<br />(d) Concealed or o~ site assembly. Where
<br />structural elements, materials, connections
<br />or installation of mechanical and electrical
<br />equipment cannot be visually inspected, the
<br />manufacturer of the elements or combination
<br />of elements shall furnish a certificate of in-
<br />spection in the form and to the satisfaction
<br />of the Building Official stating that the con-
<br />cealed work has been manufactured and as-
<br />sembled in accordance with requirements of
<br />this Dwelling House Code and in conformity
<br />with the plans and specifications on file.
<br />1555.08 Plans and specifications.
<br />(a) General. Plans and specifications
<br />shall be furnished in accordance with re-
<br />quirements of Section 1505,03, In addition
<br />such application shall describe and clearly
<br />show in detail all essential elements of the
<br />structure or assembly. The application shall
<br />further identify such materials as the Build-
<br />ing Official may designate with the name of
<br />manufacturer, trade name, commercial
<br />grade, manufacturing process or chemical
<br />composition, and shall' include all required
<br />data and the physical properties of the com-
<br />ponent materials.
<br />(b) Mechanical equipment. Mechanical
<br />plans, in detail satisfactory to the Building
<br />Official, for the installation of heating, cook-
<br />ing, electrical, ventilating, air conditioning,
<br />sanitary and other service equipment, piping
<br />and accessories, shall be submitted to the
<br />Building Official with the application for
<br />general approval of the design; or, if not in-
<br />cluded in the general application for ap-
<br />proval, such information shall be furnished
<br />for each specific installation.
<br />CHAPTER 57. FIREPd.ACES.
<br />1557.01 General.
<br />The walls of fireplaces shall be built of
<br />solid masonry units or reinforced concrete
<br />not less than 8 inches thick. All faces ex-
<br />posed to fire shall be lined with at least 2
<br />inches of firebrick .or other approved ma-
<br />terial.
<br />1557.02 Hearths.
<br />Fireplaces shall have' hearths of brick,
<br />stone, the or other approved noncombustible
<br />material supported on masonry or reinforced
<br />concrete. Hearths shall project at least 20
<br />inches from the fireplace opening and not
<br />less than 12 inches from each side of the fire-
<br />place opening. The combined thickness of
<br />the hearth and supporting arch or slab shall
<br />be not less than 6 inches at any point. Wood
<br />centering or other ~ wood supports used in
<br />construction of the arch or slab shall not be
<br />left in place. Specially designed fireplaces
<br />shall be subject to the specific approval of
<br />the Building Official:
<br />1557.03 Flue area. - --
<br />The net flue area for fireplaces shall be not
<br />less than 1/12 the opening of the fireplace.
<br />15.57.04 Clearance.
<br />No combustible construction shall be
<br />placed within 4 .inches of the back of any
<br />fireplace, Headers supporting trimmer
<br />arches at fireplaces shall be not less thari 20
<br />inches from the face of the fireplace. Trim-
<br />mers shall be not less than 6 inches from the
<br />inside face of the.nearest flue, No combus-
<br />tible mantel or other combustible construc-
<br />tion orfinish shall be placed within 12 inches
<br />of the top of any fireplace opening. All spaces
<br />back of..combustible mantels shall be filled
<br />with noncombustible materials. Section
<br />1559.15 et seq..shall govern clearances from
<br />chimneys and flues.
<br />1557.05 Ash dumps.
<br />Ash dumps provided in connection with
<br />fireplaces shall empty into masonry or other
<br />a p p r o v..e d fire-resistive noncombustible
<br />chambers .provided -with accessible metal
<br />cleanout doors.
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<br />Footings, Foundations and Piers
<br />§ 1565.07
<br />1563.03 Excavations for footings and
<br />foundation.
<br />(a) General. Excavation ,for foundation
<br />shall extend to a level which will provide
<br />adequate bearing. In case of doubt regard-
<br />ing bearing capacity, tests may be required
<br />for this determination. The earth in bottom
<br />of trenches shall be protected against freez-
<br />ing. ,
<br />(b) Depth. Excavation shall extend not
<br />less than 3 feet below adjoining ground sur-
<br />face, except that footings for one-story
<br />framed structures, which in the opinion of
<br />the Building Official will not be adversely
<br />affected by frost action, ,may be at such
<br />depths as will provide adequate support
<br />and anchorage. -
<br />(c) Trenches. Bottom of footing trenches
<br />shall be level. Where steps are necessary in
<br />longitudinal direction, a vertical step shall
<br />not exceed i/z of the horizontal distance be-
<br />tween steps. Horizontal distance between
<br />steps shall be not less than 2 feet.
<br />1563.04 Basementless space.
<br />Ground level shall be at least 18 inches
<br />below bottom of floor joists and girders.
<br />Where it is necessary to provide access for
<br />general maintenance or repair to piping in.
<br />the under floor space, the ground level'shall
<br />be not less than 2 feet below bottom of joist.
<br />All debris, sod, tree stumps, and other
<br />organic materials shall be removed from
<br />such basementless spaces and a smooth
<br />surface provided flee of undrained pockets.
<br />CHAPTER 65. FOOTINGS, FOUNDATIONS .AND PIERS.
<br />1565.01 Bearing material.
<br />The footings or foundations of every dwell-
<br />ing or appurtenant structure shall be sup-
<br />ported by satisfactory bearing material,
<br />which shall mean natural deposits of rock,
<br />gravel, sand, clay or any combination of
<br />these, which does not contain a deleterious
<br />amount of organic materials.
<br />1565.02 Depth of foundation.
<br />Except when on rock and .except for one-
<br />story frame structures as otherwise provided
<br />in subsection 1563.03 (b), the footings or
<br />foundation of every dwelling shall be carried
<br />down not less than 3 feet below an adjoining
<br />surface exposed to freezing. The footings or
<br />foundation of wood-frame or light-metal-
<br />frame buildings not exceeding 650 square
<br />feet in area need not be carried down to
<br />more than 18 inches below an adjoining sur-
<br />faee exposed to freezing.
<br />1565.03 Footing material.
<br />Footings shall be constructed of reinforced
<br />concrete, plain concrete or solid masonry
<br />units placed in Type A or Type B mortar as
<br />defined in Chapter 41.
<br />1565.04 Wall footings.
<br />Foundation walls of solid or hollow ma-
<br />sonry units shall rest on continuous wall
<br />footings. Foundation walls of plain concrete
<br />shall rest on continuous wall footings which
<br />may be poured integrally with the wall. The
<br />depth of wall footing of solid masonry units
<br />or_ plain concrete. shall be not less than twice
<br />the projection from the wall above but not
<br />less than 8 inches. Unless otherwise ap-
<br />proved by the Building Official, the width of
<br />footing shall be at least 8 inches wider than
<br />the wall or pier supported. The maximum
<br />offset of each course in brick unit footings
<br />shall be 1~/z inches if laid in single courses
<br />and 3 inches if laid in double courses.
<br />1565.05 Foundation walls-general.
<br />Foundation walls shall be of solid or hol-
<br />low masonry units, plain or reinforced, or
<br />plain or reinforced concrete, The thickness
<br />shall be not less. than ,the walls supported,
<br />except that masonry veneer on frame walls
<br />and nominal 10 inch .cavity walls may ex-
<br />tend not more than 2 inches beyond the
<br />outer face of the foundation wall when sup-
<br />ported on bearing provided by corbeling
<br />with solid masonry units, with no individual
<br />corbel exceeding i/s the height or t/s the
<br />imbedment of the masonry units, and the
<br />top corbel course being a full header course
<br />not higher than the bottom of floor joists of
<br />the first floor.
<br />1565.06 Solid masonry foundation walls.
<br />Foundation walls of plain concrete or solid
<br />masonry,units shall be not less than 8 inches
<br />nominal thickness provided the basement or
<br />cellar floor is not more than 5 feet below
<br />grade, and not less than 12 inches nominal
<br />thickness when a cellar floor is more than
<br />5 feet but less than 8 feet below grade.
<br />Foundation walls of rubble stone shall be at
<br />least 16 inches thick.
<br />1565.07 Hollow masonry foundation walls.
<br />Foundation walls of approved hollow -ma-
<br />sonry units shall be not less than 8 inches
<br />nominal thickness where the basement or
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