ACCESSIBLE. Signifies access that requires the removal of an access panel or similar removable obstruction.
. Signifies access without the necessity for removing a panel or similar obstruction.
dwelling(s) and which is located on the same lot.. A building, the use of which is incidental to that of the
. An extension or increase in floor area or height of a building or structure.
. Stone or masonry veneer secured and supported through the adhesion of an approved bonding material applied to an approved backing.
valve designed to allow air into the plumbing drainage system when a negative pressure develops in the piping. This device shall close by gravity and seal the terminal under conditions of zero differential pressure (no flow conditions) and under positive internal pressure.. A one-way
air barrier may be a single material, or a combination of materials.. Material(s) assembled and joined together to provide a barrier to air leakage through the building envelope. An
plenums by mechanical means.. A means of providing space conditioning utilizing movement of air through ducts or
. A system that consists of heat exchangers, blowers, filters, supply, exhaust and return-air systems, and shall include any apparatus installed in connection therewith.
. An insulation having an air permanence equal to or less than 0.02 L/s-m2 at 75 Pa pressure differential tested according to ASTM E 2178 or E 283.
repair or addition that requires a permit. Also, a change in a mechanical system that involves an extension, addition or change to the arrangement, type or purpose of the original installation that requires a permit.. The construction or renovation to an existing structure other than
. Stone or masonry veneer secured with approved mechanical fasteners to an approved backing.
Supports.”. See “
valves or mechanical devices that eliminate siphonage.. A term applied to
. A device or apparatus that is manufactured and designed to utilize energy and for which this code provides specific requirements.
APPROVED. Refers to approval by the building official as the result of review, investigation, inspection and testing in accordance with the provisions of this code.
. The ratio of longest to shortest perpendicular dimensions, or for wall sections, the ratio of height to length.
story, complying with all of the following requirements:. A finished area, not considered a
1. The occupiable floor area is at least 70 square feet (17 m2), in accordance with Section 304,
. A reversal of flow in the drainage system.
. A device or means to prevent backflow.
valves, internally force loaded to a normally closed position and separated by an intermediate chamber (or zone) in which there is an automatic relief means of venting to atmosphere internally loaded to a normally open position between two tightly closing shutoff valves and with means for testing for tightness of the checks and opening of relief means.. A backflow-prevention device consisting of two independently acting check
mains causes a potential backflow condition.. Pressure created by any means in the water distribution system, which by being in excess of the pressure in the water supply
. A pressure less than or equal to 4.33 psi (29.88 kPa) or the pressure exerted by a 10-foot (3048 mm) column of water.
drainage fitting, designed to provide a change in direction of a drain pipe of less than the angle specified by the amount necessary to establish the desired slope of the line (see “Elbow” and “Sweep”).. A
combustion of fuels, or from electricity or nuclear energy. The term boiler includes fired units for heating or vaporizing liquids other than water where these units are separate from processing systems and are complete within themselves.. A closed vessel in which water is heated, steam is superheated, or any combination thereof, under pressure to vacuum for use externally to itself by the direct application of heat from the
. A horizontal grouted element within masonry in which reinforcement is embedded.
. A straight line through the building plan that represents the location of the lateral resistance provided by the wall bracing.
braced wall line with structural sheathing applied to all sheathable surfaces including the areas above and below openings.. A
anchors. The panel’s length meets the requirements of its particular bracing method, and contributes toward the total amount of bracing required along its braced wall line in accordance with Section 602.10.1.. A full-height section of wall constructed to resist in-plane shear loads through interaction of framing members, sheathing material and
Fixture branch, drainage.”. See “
Horizontal branch, drainage.”. See “
BUILDING. Building shall mean any one-, two- and three-family dwelling detached from other structures used, or designed or intended to be used for human habitation, for living, sleeping, cooking or eating purposes, or any combination thereof, and shall include accessory structures thereto. For the purposes of this code, “building” may also mean structures comprised of multiple single-family dwellings when such structures qualify in accordance with OBC Section 310.1.
piping that collects the discharge from all other drainage piping inside the house and extends 30 inches (762 mm) in developed length of pipe, beyond the exterior walls and conveys the drainage to the building sewer.. The lowest
. The line established by law, beyond which a building shall not extend, except as specifically provided by law.
Building Official” in accordance with rules of the board of building standards.. An individual who has received and maintains a certification of “Residential
BUILDING SERVICES PIPING. Piping systems and their component parts that are part of a building system and that promote the safe, sanitary, and energy efficient occupancy of a building. “Building services piping” includes, but is not limited to, cold and hot potable water distribution for plumbing fixtures; sanitary lines leading from plumbing fixtures; nonflammable medical gas systems; medical oxygen systems; medical vacuum systems; fire protection piping systems and compressed air in dry systems; refrigeration, chilled water, condenser, cooling tower water, brine, and water/antifreeze systems; steam, steam condensate, and hot water piping systems; heating and cooling piping systems; and fuel oil piping and fuel gas piping for heating, cooling, and cooking applications.
. Two or more layers of felt cemented together and surfaced with a cap sheet, mineral aggregate, smooth coating or similar surfacing material.
. The clear vertical distance from the finished floor to the finished ceiling.
. A mixture of portland or blended cement, portland cement or blended cement and hydrated lime, masonry cement or plastic cement and aggregate and other approved materials as specified in this code.
CHANGE OF OCCUPANCY. A change in the purpose or level of activity within a structure that involves a change in the application of the requirements of the code.
chimney for removing the products of combustion from fuel-burning, residential-type appliances producing combustion gases not in excess of 1,000°F (538°C) under normal operating conditions, but capable of producing combustion gases of 1,400°F (760°C) during intermittent forces firing for periods up to 1 hour. All temperatures shall be measured at the appliance flue outlet. Residential-type appliance chimneys include masonry and factory-built types.. An approved
. The exterior materials that cover the surface of the building envelope that is directly loaded by the wind.
. An accessible opening in the drainage system used for the removal of possible obstruction.
CLOSED CONSTRUCTION. An assembly of materials or products manufactured in such a manner that its structural, plumbing, electrical, environmental control, or fire protection elements or components are concealed and are not readily accessible for inspection at the site of its erection, without disassembly, damage, or destruction. Closed construction includes assemblies where only one of the components is not accessible for inspection. (For example, an equipment enclosure where all the electrical conductors and components are exposed for inspection and its roof and wall panels have exposed structural members but the floor panel structural members are not exposed, would be required to be approved by the board in accordance with Section 113 of the OBC.) Also see definition of Industrialized units.
. A small room or chamber used for storage.
Building code or this code. The Residential Code of Ohio, this edition.
Mechanical code. The current edition of the Ohio Mechanical Code.
waste piping embodying the horizontal wet venting of one or more sinks or floor drains by means of a common waste and vent pipe adequately sized to provide free movement of air above the flow line of the drain.. A specially designed system of
. Any material not defined as noncombustible.
flue gases and water that condenses from air circulating through the cooling coil in air conditioning equipment.. The liquid that separates from a gas due to a reduction in temperature, e.g., water that condenses from
appliance that condenses water generated by the burning of fuels.. An
control its temperature, relative humidity or quality.. Air treated to
appliances capable of maintaining, through design or heat loss/gain, 68°F (20°C) during the heating season and/or 80°F (27°C) during the cooling season, or has a fixed opening directly adjacent to a conditioned area.. That area within a building provided with heating and/or cooling systems or
. Written, graphic and pictorial documents prepared or assembled for describing the design, location and physical characteristics of the elements of a project necessary for obtaining an approval. Construction drawings shall be drawn to an appropriate scale.
control responsive directly to flame properties that senses the presence or absence of flame and, in event of ignition failure or unintentional flame extinguishment, automatically causes shutdown of mechanical equipment.. A safety
. A system-incorporating heating element in an enclosure in which air enters an opening below the heating element, is heated and leaves the enclosure through an opening located above the heating element.
. The ability of a material to withstand deterioration of its surface or its properties when exposed to its environment.
grade plane.. A framed wall extending from the top of the foundation to the underside of the floor framing of the first story above
piping systems whereby there may be a flow from one system to the other.. Any connection between two otherwise separate
Dalle glass or glazing material whose purpose is decorative or artistic, not functional; whose coloring, texture or other design qualities or components cannot be removed without destroying the glazing material; and whose surface, or assembly into which it is incorporated, is divided into segments.. A carved, leaded or
pipe and fittings.. The length of a pipeline measured along the center line of the
diaphragm” is used, it includes horizontal bracing systems.. A horizontal or nearly horizontal system acting to transmit lateral forces to the vertical resisting elements. When the term “
appliance, or a part of the vent connector from an appliance, which is designed to provide for the ready escape of the flue gases from the appliance in the event of no draft, backdraft or stoppage beyond the draft hood; prevent a backdraft from entering the appliance; and neutralize the effect of stack action of the chimney or gas vent on the operation of the appliance.. A device built into an
pipe fitting designed to provide connections in the drainage system that have provisions for establishing the desired slope in the system. These fittings are made from a variety of both metals and plastics. The methods of coupling provide for required slope in the system (see “Durham fitting”).. A
drainage fitting for use in the durham systems installations in which the joints are made with recessed and tapered threaded fittings, as opposed to bell and spigot lead/oakum or solvent/cemented or soldered joints. The tapping is at an angle (not 90 degrees) to provide for proper slope in otherwise rigid connections.. A special type of
dwelling units used, intended, or designed to be built, used, rented, leased, let or hired out to be occupied, or that is occupied for living purposes. Each unit must have independent means of egress with no more than five lodgers or boarders per unit.. Any building or portion of a building that contains one or more
DWELLING, ONE-, TWO- OR THREE-FAMILY. A structure, exclusively comprised of one, two or three dwelling units and physically separated from adjacent structures. Each dwelling unit is intended for occupancy by a family and no more than five lodgers or boarders. For this code to be applicable, shared means of egress for two- and three-family dwellings shall be limited to those open to the exterior.
dwelling unit such as a private garage, greenhouse, etc.. A single unit providing complete independent living facilities for one or more persons, including permanent provisions for living, sleeping, eating, cooking and sanitation. The unit may include any accessory space intended for the exclusive use of the occupants of an individual
. An operable exterior window, door or similar device that provides for a means of escape and access for rescue in the event of an emergency.
EQUIPMENT (OR FIXTURE). Any plumbing, heating, electrical, ventilating, air conditioning, refrigerating and fire protection devices and components of systems other than appliances, and elevators, dumb waiters, and other mechanical facilities or installations that are related to building services.
slope generally separating two levels or gently sloping areas.. With respect to topographic wind effects, a cliff or steep
refrigerants and hydrazine.. Soil, water or gray water and fluids having a Gosselin rating of 2 or more including ethylene glycol, hydrocarbon oils, ammonia
. A device used for reducing air temperature by the process of evaporating water into an airstream.
plumbing system regulated by this code that was legally installed prior to the effective date of this code, or for which an approval has been issued.. Any
exterior wall cladding systems that consist of an insulation board attached either adhesively or mechanically, or both, to the substrate; an integrally reinforced base coat; and a textured protective finish coat.(EIFS). EIFS are nonstructural, nonload-bearing
grade wall that defines the exterior boundaries of a building. Includes between-floor spandrels, peripheral edges of floors, roof and basement knee walls, dormer walls, gable end walls, walls enclosing a mansard roof and basement walls with an average below-grade wall area that is less than 50 percent of the total opaque and nonopaque area of that enclosing side.. An above-
glass block; and combination opaque/glazed doors.. Skylights, roof windows, vertical windows (whether fixed or moveable); opaque doors; glazed doors;
fireblocking, installed to resist the free passage of flame to other areas of the building through concealed spaces.. Building materials or materials approved for use as
. The opening between the top of the firebox and the smoke chamber.
. Pressure-treated lumber and plywood that exhibit reduced surface burning characteristics and resist propagation of fire.
. A process where the wood raw material is treated with a fire-retardant formulation while undergoing creation as a finished product.
. A process for treating wood using an initial vacuum followed by the introduction of pressure above atmospheric.
FIXTURE (OR EQUIPMENT). Any plumbing, heating, electrical, ventilating, air conditioning, refrigerating and fire protection devices and components of systems other than appliances, and elevators, dumb waiters, and other mechanical facilities or installations that are related to building services.
plumbing fixtures, used to size DWV piping systems. The drainage fixture-unit value for a particular fixture depends on its volume rate of drainage discharge, on the time duration of a single drainage operation and on the average time between successive operations.. A measure of probable discharge into the drainage system by various types of
demand on the water supply by various types of plumbing fixtures used to size water-piping systems. The water-supply fixture-unit value for a particular fixture depends on its volume rate of supply, on the time duration of a single supply operation and on the average time between successive operations.. A measure of the probable hydraulic
. The propagation of flame over a surface.
. A comparative measure, expressed as a dimensionless number, derived from visual measurements of the spread of flame versus time for a material tested in accordance with ASTM E 84.
winders or combination thereof from one landing to another.. A continuous run of rectangular treads or
plumbing fixture for recess in the floor having a floor-level strainer intended for the purpose of the collection and disposal of waste water used in cleaning the floor and for the collection and disposal of accidental spillage to the floor.. A
Vent.”. See “
fixtures for flushing purposes.. A device integrated within an air accumulator vessel that is designed to discharge a predetermined quantity of water to
. Foam plastic used in siding applications where the foam plastic is a component of the siding.
appliance location.. A completely self-contained heating unit that is designed to supply heated air to spaces remote from or adjacent to the
fenestration, including the area of sash, curbing or other framing elements, that enclose conditioned space. Includes the area of glazed fenestration assemblies in walls bounding conditioned basements.. The interior surface area of all glazed
. A window or other opening located such that the sill height of the opening is not more than 44 inches (1118 mm) above or below the finished ground level adjacent to the opening.
exterior walls. Where the finished ground level slopes away from the exterior walls, the reference plane shall be established by the lowest points within the area between the building and the lot line or, where the lot line is more than 6 ft (1829 mm) from the building between the structure and a point 6 ft (1829 mm) from the building.. A reference plane representing the average of the finished ground level adjoining the building at all
exterior walls, including the area of all windows and doors installed therein.. The normal projection of all
Piping buried in horizontal or vertical excavations or placed in a body of water for the purpose of transporting heat transfer liquid to and from a heat pump. Included in this definition are closed loop systems in which the liquid is recirculated and open loop systems in which the liquid is drawn from a well or other source..
. A building component or a system of building components located near the open sides of elevated walking surfaces that minimizes the possibility of a fall from the walking surface to the lower level.
. A horizontal or sloping rail intended for grasping by the hand for guidance or support.
Supports.”. See “
. Any location considered to be a fire hazard for flammable vapors, dust, combustible fibers or other highly combustible substances.
(HDD). The sum, on an annual basis, of the difference between 65°F (18°C) and the mean temperature for each day as determined from “NOAA Annual Degree Days to Selected Bases Derived from the 1960-1990 Normals” or other weather data sources acceptable to the building official.
grade plane to the average height of the highest roof surface.. The vertical distance from
story, from the top of the floor finish to the top of the ceiling joists or, where there is not a ceiling, to the top of the roof rafters.. The vertical distance from top to top of two successive tiers of beams or finished floor surfaces; and, for the topmost
diameter linear fluorescent lamps or lamps with a minimum efficacy of:. Compact fluorescent lamps, T-8 or smaller
1. 60 lumens per watt for lamps over 40 watts.
2. 50 lumens per watt for lamps over 15 watts to 40 watts.
3. 40 lumens per watt for lamps 15 watts or less.
relief in any horizontal direction.. With respect to topographic wind effects, a land surface characterized by strong
HISTORIC BUILDING. A residential building meeting one of the following criteria:
1. Listed or preliminarily determined to be eligible for listing in the “National Register of Historic Places”; or
2. Determined by the secretary of the U.S. Department of Interior as contributing to the historical significance of a registered historic district or a district preliminarily determined to qualify as an historic district; or
3. Designated as historic under a state or local historic preservation program that is approved by the U.S. Department of Interior.
pipe or fitting that makes an angle of less than 45 degrees (0.79 rad) with the horizontal.. Any
. Water at a temperature greater than or equal to 110°F (43°C).
Hydrogen generating appliances utilize electrolysis, reformation, chemical, or other processes to generate hydrogen.. A self-contained package or factory-matched packages of integrated systems for generating gaseous hydrogen.
. A supply other than an approved public water supply that serves one or more families.
INDUSTRIALIZED UNITS. Industrialized units are prefabricated components comprised of closed construction manufactured at a location remote from the site of intended use and transported to a building site for its subsequent use. Industrialized units are not restricted to housing for one-, two-, and three-family dwellings, but includes all prefabricated forms of building elements and assembled construction units, intended for both structural and service equipment purposes in all buildings of all groups. Prefabricated shop assemblies may be shipped in structurally complete units ready for installation in the building structure or in knock-down and packaged form for assembly at the site. Industrialized units must be approved by the board in accordance with Section 113 of the OBC. Also see definition of CLOSED CONSTRUCTION.
concrete forming system using stay-in-place forms of rigid foam plastic insulation, a hybrid of cement and foam insulation, a hybrid of cement and wood chips, or other insulating material for constructing cast-in-place concrete walls.(ICF). A
core material.. An insulating board having a minimum thermal resistance of R-2 of the
. The municipality, township or county governmental unit with a residential building department certified by the board of building standards.
Kitchen shall mean an area used, or designated to be used, for the preparation of food..
label, seal, symbol or other identifying mark of a testing laboratory, inspection agency or other organization concerned with product evaluation that maintains periodic inspection of the production of the above labeled items that attests to compliance with a specific standard.. Devices, equipment or materials to which have been affixed a
. A type of construction whose vertical and horizontal structural elements are primarily formed by a system of repetitive wood or cold-formed steel framing members.
LISTED AND LISTING. Terms referring to equipment that is shown in a list published by an approved testing agency qualified and equipped for experimental testing and maintaining an adequate periodic inspection of current productions and whose listing states that the equipment complies with nationally recognized standards when installed in accordance with the manufacturer’s installation instructions.
. Those loads produced by the use and occupancy of the building or other structure and do not include construction or environmental loads such as wind load, snow load, rain load, earthquake load, flood load or dead load.
dwelling unit utilized for living, sleeping, eating, cooking, bathing, washing and sanitation purposes.. Space within a
LOAD-BEARING ELEMENT. Any column, girder, beam, joist, truss, rafter, wall, floor or roof sheathing that supports any vertical load in addition to its own weight, and/or any lateral load.
LOT. A portion or parcel of land considered as a unit.
. A line dividing one lot from another, or from a street or any public place.
dwelling constructed under “24 CFR Part 3280,” “Manufactured Home Construction and Safety Standards.” [Note: Typically, a “Manufactured Home” will be constructed on a steel chassis and have a small (approximately 1-1/2" × 3") metal plate with inscribed HUD regulation reference numbers attached to the exterior end wall of the unit.]. A
Label.”). An identification applied on a product by the manufacturer indicating that a product or material complies with a specified standard or set of rules. (See also “Mark” and “
. Printed instructions included with equipment as part of the conditions of listing and labeling.
MARK. An identification applied on a product by the manufacturer indicating the name of the manufacturer and the function of a product or material. (See also “Manufacturer’s designation” and “Label.”)
masonry heater is a solid fuel burning heating appliance constructed predominantly of concrete or solid masonry having a mass of at least 1,100 pounds (500 kg), excluding the chimney and foundation. It is designed to absorb and store a substantial portion of heat from a fire built in the firebox by routing exhaust gases through internal heat exchange channels in which the flow path downstream of the firebox includes at least one 180-degree (3.14-rad) change in flow direction before entering the chimney and which deliver heat by radiation through the masonry surface of the heater.. A
solid masonry units laid contiguously with the joints between the units filled with mortar.. Masonry consisting of
. A building unit or block larger in size than 12 inches by 4 inches by 4 inches (305 mm by 102 mm by 102 mm) made of cement and suitable aggregates.
glass units bonded by mortar.. Nonload-bearing masonry composed of
masonry unit whose net cross-sectional area in any plane parallel to the loadbearing surface is less than 75 percent of its gross cross-sectional area measured in the same plane.. A
masonry unit whose net cross-sectional area in every plane parallel to the loadbearing surface is 75 percent or more of its cross-sectional area measured in the same plane.. A
concrete walls having a mass greater than or equal to 30 pounds per square foot (146 kg/m2), solid wood walls having a mass greater than or equal to 20 pounds per square foot (98 kg/m2), and any other walls having a heat capacity greater than or equal to 6 Btu/ft2 • °F [266 J/(m2 • K)].. Masonry or
. The average of the roof eave height and the height to the highest point on the roof surface, except that eave height shall be used for roof angle of less than or equal to 10 degrees (0.18 rad).
MECHANICAL DRAFT SYSTEM. A venting system designed to remove flue or vent gases by mechanical means, that consists of an induced draft portion under nonpositive static pressure or a forced draft portion under positive static pressure.
. A system for removing air from a room or space by mechanical means.
appliances and equipment.. A system specifically addressed and regulated in this code and composed of components, devices,
. An interlocking metal sheet having a minimum installed weather exposure of at least 3 square feet (0.28 m2) per sheet.
. An interlocking metal sheet having an installed weather exposure less than 3 square feet (0.28 m2) per sheet.
story with an aggregate floor area of not more than one-third of the area of the room or space in which the level or levels are located.. An intermediate level or levels between the floor and ceiling of any
Repair, Minor.”. See “
. One or more layers of polymer modified asphalt sheets. The sheet materials shall be fully adhered or mechanically attached to the substrate or held in place with an approved ballast layer.
. Two or more single station alarm devices that are capable of interconnection such that actuation of one causes all integral or separate audible alarms to operate.
. The heartwood of the following species with the exception that an occasional piece with corner sapwood is permitted if 90 percent or more of the width of each side on which it occurs is heartwood.
. Redwood, cedar, black locust and black walnut.
. Alaska yellow cedar, redwood, Eastern red cedar and Western red cedar including all sapwood of Western red cedar.
. Materials that pass the test procedure for defining noncombustibility of elementary materials set forth in ASTM E 136.
. The total area of all buildings or structures on any lot or parcel of ground projected on a horizontal plane, excluding permitted projections as allowed by this code.
pipe out of line but into a line parallel with the other section.. A combination of fittings that makes two changes in direction bringing one section of the
. Any person, agent, firm or corporation having a legal or equitable interest in the property.
building official that authorizes performance of a specified activity. Also see “APPROVED.”. An approval indicated in an official document or certificate issued by the residential
PERSON. An individual, heirs, executors, administrators or assigns, and also includes a firm, partnership or corporation, its or their successors or assigns, or the agent of any of the aforesaid.
Slope.”. See “
occupied space being conditioned.. A chamber that forms part of an air-circulation system other than the
fixtures utilized in the installation, maintenance, extension and alteration of all piping, fixtures, appliances and appurtenances within or adjacent to any structure, in connection with sanitary drainage or storm drainage facilities; venting systems; and public or private water supply systems.. The practice, materials and
plumbing system and demands no additional water supply nor adds any discharge load to the system. It is presumed that it performs some useful function in the operation, maintenance, servicing, economy or safety of the plumbing system. Examples include filters, relief valves and aerators.. A device or assembly that is an adjunct to the basic
receptor or device that requires both a water-supply connection and a discharge to the drainage system, such as water closets, lavatories, bathtubs and sinks. Plumbing appliances as a special class of fixture are further defined.. A
portable-fuel-cell appliance utilizes a cord and plug connection to a gridisolated load and has an integral fuel supply.. A fuel cell generator of electricity, which is not fixed in place. A
concrete element cast elsewhere than its final position in the structure.. A structural
. A common sewer directly controlled by public authority.
pipe for public use controlled by public authority.. A water-supply
. Any street, alley or other parcel of land open to the outside air leading to a public street, which has been deeded, dedicated or otherwise permanently appropriated to the public for public use and that has a clear width and height of not less than 10 feet (3048 mm).
. To clear of air, gas or other foreign substances.
valve or faucet that closes automatically when released manually or controlled by mechanical means for fast-action closing.. A
R-VALUE, THERMAL RESISTANCE. The inverse of the time rate of heat flow through a building thermal envelope element from one of its bounding surfaces to the other for a unit temperature difference between the two surfaces, under steady state conditions, per unit area (h•ft2•°F/Btu).
. A substance used to produce refrigeration by its expansion or evaporation.
refrigerant vapor.. A specific machine, with or without accessories, for compressing a given
refrigerant is circulated for the purpose of extracting, then rejecting, heat. A direct refrigerating system is one in which the evaporator or condenser of the refrigerating system is in direct contact with the air or other substances to be cooled or heated. An indirect refrigerating system is one in which a secondary coolant cooled or heated by the refrigerating system is circulated to the air or other substance to be cooled or heated.. A combination of interconnected parts forming a closed circuit in which
. Any architect holding a certificate issued under Sections 4703.10 and 4703.36 of the Revised Code or any engineer holding a certificate issued under Section 4733.14 of the Revised Code.
. A device to prevent excessive buildup of vacuum in a pressure vessel.
existing building for the purpose of its maintenance.. The reconstruction or renewal of any part of an
REPAIR, MINOR. The reconstruction or renewal of any part of an existing building for the purpose of its maintenance when the work has limited impact on access, safety or health. Minor repairs do not include the cutting away of any wall, partition or portions of walls, the removal or cutting of any structural beam or load bearing support, or the removal or change of any required element of accessibility, means of egress, or rearrangement of parts of a structure affecting the egress requirements. Minor repairs do not include addition to, alteration of, replacement or relocation of any standpipe, water supply, sewer, drainage, drain leader, gas, soil, waste, vent or similar piping, electric wiring or mechanical or fire protection equipment.
conditioned space or location and recirculated or exhausted.. Air removed from an approved
roof covering and roof deck or a single component serving as both the roof covering and the roof deck. A roof assembly includes the roof deck, vapor retarder, substrate or thermal barrier, insulation, vapor retarder, and roof covering.. A system designed to provide weather protection and resistance to design loads. The system consists of a
roof deck for weather resistance, fire classification or appearance.. The covering applied to the
. Reconstruction or renewal of any part of an existing roof for the purposes of its maintenance.
. An enclosed structure on or above the roof of any part of a building.
appliance installed in the space being heated and not connected to ducts.. A freestanding heating
SAFE. As applied to a building, means free from danger or hazard to the life, safety, health or welfare of persons occupying or frequenting it, or of the public, and from danger of settlement, movement, disintegration, or collapse, whether such danger arises from the method or materials of its construction or from equipment installed therein, for the purpose of lighting, heating, the transmission or utilization of electric current, or from its location or otherwise.
SANITARY. As applied to a building, means free from danger or hazard to the health of persons occupying or frequenting it or to that of the public, if such danger arises from the method or materials of its construction or from any equipment installed therein for the purpose of lighting, heating, ventilating, or plumbing.
sewage and excludes storm, surface and groundwater.. A sewer that carries
drain from a roof.. An opening in a wall or parapet that allows water to
(SDC). A classification assigned to a structure based on its occupancy category and the severity of the design earthquake ground motion at the site.
receptor that receives the discharge of a building sanitary drainage system and is constructed so as to separate solids from the liquid, digest organic matter through a period of detention, and allow the liquids to discharge into the soil outside of the tank through a system of open joint or perforated piping or a seepage pit.. A water-tight
SERIOUS HAZARD. A hazard of considerable consequence to safety or health through the design, location, construction, or equipment of a building, or the condition thereof, which hazard has been established through experience to be of certain or probable consequence, or which can be determined to be, or which is obviously such a hazard.
waste containing animal matter, vegetable matter or other impurity in suspension or solution.. Any liquid
SHALL. The term, when used in the code, is construed as mandatory.
walls that are designed and constructed to resist racking from seismic and wind by use of masonry, concrete, cold-formed steel or wood framing in accordance with Chapter 6 of this code and the applicable limitations in Section 301.2 of this code.. A general term for
. A roofing membrane that is field applied using one layer of membrane material (either homogeneous or composite) rather than multiple layers.
SKYLIGHT AND SLOPED GLAZING. See Section 308.6.1.
SKYLIGHT, UNIT. See Section 308.6.1.
fixture traps. The joint tightness is obtained by compressing a friction-type washer such as rubber, nylon, neoprene, lead or special packing material against the pipe by the tightening of a (slip) nut.. A mechanical-type joint used primarily on
. A comparative measure, expressed as a dimensionless number, derived from measurements of smoke obscuration versus time for a material tested in accordance with ASTM E 84.
masonry units where the net cross-sectional area of each unit in any plane parallel to the bearing surface is not less than 75 percent of its gross cross-sectional area. Solid masonry units shall conform to ASTM C 55, C 62, C 73, C 145 or C 216.. Load-bearing or nonload-bearing construction using
wood structural panel cut from the same material used for the panel facings, used to connect two structural insulated panels. The strip (spline) fits into a groove cut into the vertical edges of the two structural insulated panels to be joined. Splines are used behind each facing of the structural insulated panels being connected as shown in Figure 613.8.. A strip of
masonry units in a bond pattern is such that head joints in successive courses are vertically aligned. For the purpose of this code, requirements for stack bond shall apply to all masonry laid in other than running bond.. The placement of
flights of stairs, either interior or exterior, with the necessary landings and platforms connecting them to form a continuous and uninterrupted passage from one level to another within or attached to a building, porch or deck.. One or more
STATIONARY FUEL CELL POWER PLANT. A self-contained package or factory-matched packages which constitute an automatically-operated assembly of integrated systems for generating useful electrical energy and recoverable thermal energy that is permanently connected and fixed in place.
. That portion of a building included between the upper surface of a floor and the upper surface of the floor or roof next above.
story having its finished floor surface entirely above grade plane, except that a basement shall be considered as a story above grade plane where the finished surface of the floor above the basement meets any one of the following:. Any
1. Is more than 6 feet (1829 mm) above grade plane.
2. Is more than 6 feet (1829 mm) above the finished ground level for more than 50 percent of the total building perimeter.
3. Is more than 12 feet (3658 mm) above the finished ground level at any point.
STRUCTURE. That which is built or constructed.
drain that collects subsurface water or seepage water and conveys such water to a place of disposal.. A
sump. These pumps are used for removing storm water only. The pump is selected for the specific head and volume of the load and is usually operated by level controllers.. A pump installed to empty a
drainage fitting designed to provide a change in direction of a drain pipe of less than the angle specified by the amount necessary to establish the desired slope of the line. Sweeps provide a longer turning radius than bends and a less turbulent flow pattern (see “Bend” and “Elbow”).. A
concrete, masonry or other approved material.. Pressure-preservative treated wood in accordance with the AWPA standards in Section R318.1, naturally durable termite-resistant wood, steel,
conditioned space(s) consisting of existing or new walls, doors and/or windows. The conditioned space(s) shall be controlled as separate zones for heating and cooling or conditioned by separate equipment.. Physical and space conditioning separation from
THERMAL RESISTANCE, R-VALUE. The inverse of the time rate of heat flow through a body from one of its bounding surfaces to the other for a unit temperature difference between the two surfaces, under steady state conditions, per unit area (h • ft2 • °F/Btu).
THERMAL TRANSMITTANCE, U-FACTOR. The coefficient of heat transmission (air to air) through a building envelope component or assembly, equal to the time rate of heat flow per unit area and unit temperature difference between the warm side and cold side air films (Btu/h • ft2 • °F).
handrails, door and window frames, and similar decorative or protective materials used in fixed applications.. Picture molds, chair rails, baseboards,
. The graphic depiction of an individual truss, which describes the design and physical characteristics of the truss.
U-FACTOR, THERMAL TRANSMITTANCE. The coefficient of heat transmission (air to air) through a building envelope component or assembly, equal to the time rate of heat flow per unit area and unit temperature difference between the warm side and cold side air films (Btu/h • ft2 • °F).
permits the passage of moisture vapor.. A material or covering having a permeance rating of 5 perms (2.9 • 10-10 kg/Pa • s • m2) or greater, when tested in accordance with the desiccant method using Procedure A of ASTM E 96. A vapor permeable material
Vapor retarder class shall be defined using the desiccant method with Procedure A of ASTM E 96 as follows:. A measure of the ability of a material or assembly to limit the amount of moisture that passes through that material or assembly.
. A door that is used primarily for vehicular traffic at entrances of buildings such as garages and parking lots, and that is not generally used for pedestrian traffic.
VENT DAMPER DEVICE, AUTOMATIC. A device intended for installation in the venting system, in the outlet of an individual, automatically operated fuel burning appliance and that is designed to open the venting system automatically when the appliance is in operation and to close off the venting system automatically when the appliance is in a standby or shutdown condition.
. The natural or mechanical process of supplying conditioned or unconditioned air to, or removing such air from, any space.
combustion products to the outdoors.. Removal of
flue collar of an appliance to the outside atmosphere for the purpose of removing flue or vent gases. A venting system is usually composed of a vent or a chimney and vent connector, if used, assembled to form the open passageway.. A continuous open passageway from the
pipe or fitting that makes an angle of 45 degrees (0.79 rad) or more with the horizontal.. Any
exterior walls of buildings.. A shaped material, made principally from rigid polyvinyl chloride (PVC), that is used to cover
. A wall not laterally supported at the top, that resists lateral soil load and other imposed loads.
Walls shall be defined as follows:.
is a wall supporting any vertical load in addition to its own weight.
is a wall which does not support vertical loads other than its own weight.
waste that is free of fecal matter.. Liquid-borne
pipe for public use.. A water-supply
. A tread with nonparallel edges.
. A composite material made primarily from wood or cellulose-based materials and plastic.
wood structural panels are plywood, OSB or composite panels.. A panel manufactured from veneers; or wood strands or wafers; bonded together with waterproof synthetic resins or other suitable bonding systems. Examples of
court, unobstructed from the ground to the sky, except where specifically provided by this code, on the lot on which a building is situated.. An open space, other than a