Source: https://up.codes/viewer/oregon/irc-2015/chapter/2/definitions
Timestamp: 2019-12-10 13:17:10
Document Index: 100614645

Matched Legal Cases: ['§1', '§5', '§37', '§5', '§4', '§10', '§1', '§1', '§1', '§21', '§1', '§1', '§1', '§6', '§1', '§21', '§47', '§1', '§1', '§7', '§6', '§313', '§25', '§28', '§2', '§21', '§1', '§1', '§112', '§85', '§3', '§1', '§12', '§75', '§10', '§4']

Chapter 2: Definitions, 2017 Oregon Residential Specialty Code (ORSC) | UpCodes
Where terms are not defined in this code and are defined in the electrical code, building code, elevator code, fire code, manufactured dwelling code, mechanical code or plumbing code, such terms shall have the meanings ascribed in other code publications of the International Code Council. those codes.
Where terms are not defined through the methods authorized by this section, such terms shall have ordinarily accepted meanings such as the context implies. Words of common usage are given their plain, natural, and ordinary meanings. Words that have well-defined legal meanings are given those meanings.
[RB] ACCESSORY STRUCTURE. A structure not greater than 3,000 square feet (279 m2) in floor area, and not more than two stories in height, the use of which that is accessory to and incidental to that of the dwelling(s) and that is located on the same lot. Accessory structures include, but are not limited to garages, carports, cabanas, storage sheds, tool sheds, playhouses and garden structures. See Section R328 for allowable area increases.
AIR GAP, WATER-DISTRIBUTION SYSTEM. The unobstructed vertical distance through free atmosphere between the lowest opening from a water supply discharge to the flood-level rim of a plumbing fixture. AIR, EXHAUST. Air being removed from any space or piece of equipment and conveyed directly to the atmosphere by means of openings or ducts.
AIR, MAKEUP. Air that is provided to replace air that is exhausted.
ANCHORS. See "Supports." ANTISIPHON. A term applied to valves or mechanical devices that eliminate siphonage.
BALCONY, EXTERIOR. An exterior floor system projecting from and supported completely by an adjoining structure without any additional supports provided to the floor system.
[RB] BASEMENT. That portion of a building that is partly or completely below grade. A basement shall be considered as A story that is not a story above grade plane where the finished surface of the floor above the basement is:
(see "Story above grade plane"). [RB] BASEMENT WALL. The opaque portion of a wall that encloses one side of a basement and has an average below grade wall area that is 50 percent or more of the total opaque and nonopaque area of that enclosing side.
[RB] BASIC WIND SPEED. Three-second gust speed at 33 feet (10 058 mm) above the ground in Exposure C (see Section R301.2.1). as given in Figure R301.2(4)A.
BOILER. A self-contained appliance from which hot water is circulated for heating purposes and then returned to the boiler, and that operates at water pressures not exceeding 160 pounds per square inch gage (psig) (1102 kPa gauge) and at water temperatures not exceeding 250°F (121°C). closed heating appliance intended to supply hot water or steam for space heating, processing or power purposes.
BRANCH, VENT. A vent connecting two or more individual vents with a vent stack or stack vent. BRAZING. A weld produced by heating an assembly to the brazing temperature using a filler metal having a liquidus above 840°F (449°C) and below the solidus of the metals.
BTU/H. The listed maximum capacity of an appliance, absorption unit or burner expressed in British thermal units input per hour. (See Chapter 11 for the definition of BTU.)
[RB] BUILDING. Building shall mean any detached one- and two-family dwelling or portion thereof, including townhouses, that is 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.
BUILDING DRAIN. The lowest 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. BUILDING CODE. Shall mean the Oregon Structural Specialty Code as adopted by OAR 918-460-0100.
[RB] BUILDING OFFICIAL. The officer or other designated authority charged with the administration and enforcement of this code or a duly authorized representative.
455.715 Definitions for ORS 455.715 to 455.740.
As used in ORS 455.715 to 455.740, unless the context otherwise requires:
“Building official” means a person charged by a municipality with responsibility for administration and enforcement of the state building code in the municipality.
[Formerly 456.805; 1991 c.361 §1; 1995 c.304 §5; 2003 c.675 §37; 2009 c.593 §§5, 6; 2013 c.110 §4]
CARPORT. A carport is a structure used to shelter a vehicle, having no enclosed uses above, and is entirely open on two or more sides.
COMBINATION WASTE AND VENT SYSTEM. A specially designed system of waste piping embodying the horizontal wet venting of one or more sinks, lavatories 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. CLOTHES DRYER. An appliance used to dry wet laundry by means of heated air.
COMBUSTION AIR. The air provided to fuel-burning equipment including air for fuel combustion, draft hood dilution and ventilation of the equipment enclosure. Air necessary for the complete combustion of a fuel, including theoretical air and excess air.
[RE] CONDITIONED SPACE. An area, room or space that is enclosed within the building thermal envelope and that is directly heated or cooled or that is indirectly heated or cooled. Spaces are indirectly heated or cooled where they communicate thru openings with conditioned spaces, where they are separated from conditioned spaces by uninsulated walls, floors or ceilings or where they contain uninsulated ducts, piping or other sources of heating or cooling. See Chapter 11 for the definition of “Conditioned space.”
[RB] COURT. A space, open and An open, uncovered space, unobstructed to the sky, located at or above grade level on a lot and bounded on three or more sides by exterior building walls or a building. other enclosing devices.
[RB] CRIPPLE WALL. A framed stud wall that is less than 96 inches (2438 mm) in height extending from the top of the a concrete or masonry foundation to the underside of the floor framing of the first story above grade plane. for the lowest occupied floor level or from the top of a daylight basement concrete or masonry foundation wall to the underside of the framing above.
DECK, ATTACHED. An exterior floor system supported on at least one side by the exterior wall of the adjoining structure and supported on the opposing side by posts, piers or other support methods.
DECK, DETACHED. An exterior floor system not anchored to a structure that is provided with its own independent support system.
[RE] DEMAND RECIRCULATION WATER SYSTEM. See Section N1101.6 for definition applicable in Chapter 11. DESIGN FLOOD ELEVATION. The elevation of the “design flood,” including wave height, relative to the datum specified on the community’s legally designated flood hazard map as established by the Flood Plain Administrator.
[RB] DIAPHRAGM. A roof or floor horizontal or nearly horizontal system acting designed to transmit lateral forces to shear walls or other lateral force-resisting the vertical resisting elements. Where the term "diaphragm" is used, it includes horizontal bracing systems.
ELBOW. A pressure pipe fitting designed to provide an exact change in direction of a pipe run. An elbow provides a sharp turn in the flow path (see "Bend" and "Sweep"). ELECTRICAL CODE. Shall mean the Oregon Electrical Specialty Code as adopted by OAR 918-305-0100.
ELEVATOR CODE. Shall mean the Oregon Elevator Specialty Code as adopted by OAR 918-400-0455.
[RB] EXTERIOR WALL. An above-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. A wall, bearing or nonbearing, that is used as an enclosing wall for a building, other than a fire wall, and that has a slope of 60 degrees (1.05 rad) or greater with the horizontal plane. For definition, as it applies to energy efficiency, see Chapter 11.
FAMILY CHILD CARE HOME. (Licensed by Oregon Child Care Division under ORS 329A). Includes certified family child care homes (located in homes licensed for 16 or fewer children) and registered family child care homes (located in homes licensed for 10 or fewer children).
For definition applicable in Chapter 11, see Section N1101.6. See Chapter 11 for the definition of “Fenestration.”
FIRE CODE. For the purpose of the Oregon Residential Specialty Code, fire code shall mean those portions of the Oregon Fire Code (OFC) as adopted by OAR 837-040-0010 which include construction, reconstruction, alteration, repair or installation of materials and equipment that are covered by the State Building Code.
[RB] FIREPLACE. An assembly consisting of A hearth and fire chamber of noncombustible material and provided or similar prepared place in which a fire may be made and which is built in conjunction with a chimney. , for use with solid fuels.
FLOOR DRAIN. A 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. FLOOD HAZARD AREA. An area designated by the Flood Plain Administrator as a flood hazard area.
FLUE. See "Vent." A passageway within a chimney or vent through which gaseous products of combustion pass.
FLUSHOMETER VALVE. A flushometer valve is a device that discharges a predetermined quantity of water to fixtures for flushing purposes and is actuated by direct water pressure. [RB] FOAM BACKER BOARD. Foam plastic used in siding applications where the foam plastic is a component of the siding.
FULLWAY VALVE. A valve that in the full open position has an opening cross-sectional area that is not less than 85 percent of the cross-sectional area of the connecting pipe. FURNACE. A vented heating appliance designed or arranged to discharge heated air into a conditioned space or through a duct or ducts.
For definition applicable in Chapter 11, see Section N1101.6. IONIZATION SMOKE DETECTION. The principal of using a small amount of radioactive material to ionize the air leakage between two differentially charged electrodes to sense the presence of smoke particles. Smoke particles entering the ionization volume decrease the conductance of the air by reducing ion mobility, the reduced conductance signal is processed and used to convey an alarm condition when it meets preset criteria.
[RB] JURISDICTION. The governmental unit that has adopted this code under due legislative authority. See “Municipality.”
[RB] LODGING HOUSE. A one-family dwelling where one or more occupants are primarily permanent in nature, and rent is paid for guestrooms. Any building or portion thereof containing not more than five guest rooms, where rent is paid in money, goods, labor or otherwise. The total number of guests shall not exceed 16. Lodging houses include “bed and breakfast” and similar uses.
MANIFOLD WATER DISTRIBUTION SYSTEMS. A fabricated piping arrangement in which a large supply main is fitted with multiple branches in close proximity in which water is distributed separately to fixtures from each branch. MANUFACTURED DWELLING CODE. Shall mean the Oregon Manufactured Dwelling Installation Specialty Code as adopted by OAR 918-500-0510.
[RB] MANUFACTURED HOME. Manufactured home means a structure, transportable in one or more sections, that in the traveling mode is 8 body feet (2438 body mm) or more in width or 40 body feet (12 192 body mm) or more in length, or, where erected on site, is 320 square feet (30 m2) or more, and that is built on a permanent chassis and designed to be used as a dwelling with or without a permanent foundation where connected to the required utilities, and includes the plumbing, heating, air-conditioning and electrical systems contained therein; except that such term shall include any structure that meets all the requirements of this paragraph except the size requirements and with respect to which the manufacturer voluntarily files a certification required by the secretary (HUD) and complies with the standards established under this title. For mobile homes built prior to June 15, 1976, a label certifying compliance to the Standard for Mobile Homes, NFPA 501, in effect at the time of manufacture is required. For the purpose of these provisions, a mobile home shall be considered to be a manufactured home. See ORS 446.003(24).
ORS 446.003(24) is not part of this code but is reproduced here for the reader’s convenience:
446.003 Definitions for ORS 446.003 to 446.200 and 446.225 to 446.285 and ORS Chapters 195, 196, 197, 215 and 227.
ORS 446.003(24)
“Manufactured home,” except as provided in paragraph (b) of this section, means a structure constructed for movement on the public highways that has sleeping, cooking and plumbing facilities, that is intended for human occupancy, that is being used for residential purposes and that was constructed in accordance with federal manufactured housing construction and safety standards and regulations in effect at the time of construction.
For purposes of implementing any contract pertaining to manufactured homes between the department and the federal government, “manufactured home” has the meaning given the term in the contract. [1975 c.546 §10 (enacted in lieu of 446.002 and 446.004); 1979 c.884 §1; 1983 c.707 §1; 1987 c.274 §1; 1987 c.414 §21; 1989 c.527 §1; 1989 c.648 §§1, 1a; 1989 c.683 §1; 1989 c.919 §6b; 1991 c.226 §1; 1991 c.844 §21; 1993 c.744 §47; 1995 c.251 §1; 1997 c.205 §1; 1999 c.758 §7; 2003 c.675 §6; 2005 c.22 §313; 2009 c.259 §25; 2009 c.567 §28; 2013 c.161 §2; 2013 c.196 §21]
[RB] MASONRY HEATER. A masonry heater is a solid fuel burning heating appliance constructed predominantly of concrete or solid masonry having a mass of not less than 1,100 pounds (500 kg), excluding the chimney and foundation. It hereinafter referred to as “masonry,” which is designed to absorb and store a substantial portion of heat from a solid fuel fire built in the firebox by routing the exhaust gases through internal heat exchange channels in which the flow path downstream of the fire box may includes not less than one 180-degree (3.14-rad) change in flow in a horizontal or downward direction before entering the chimney and that which delivers heat by radiation through from the masonry surface of the heater.
MECHANICAL CODE. Shall mean the Oregon Mechanical Specialty Code as adopted by OAR 918-440-0010.
MUNICIPALITY. Shall be as defined in ORS 455.010.
ORS 455.010 is not part of this code but is reproduced here for the reader’s convenience.
455.010 Definitions for ORS chapter 455. As used in this chapter, unless the context requires otherwise:
(5) “Municipality” means a city, county or other unit of local government otherwise authorized by law to administer a building code.
[Formerly 456.750; 1991 c.227 §1; 1991 c.310 §1; 1993 c.18 §112; 1993 c.744 §85; 1997 c.259 §3; 1999 c.484 §1; 1999 c.1045 §12; 2003 c.655 §75; 2003 c.675 §§10,11; 2009 c.567 §§4,13]
Decay resistant. Redwood, cedar, black locust, Western juniper, and black walnut.
Termite resistant. Alaska yellow cedar, redwood, Eastern red cedar, Western juniper, and Western red cedar including all sapwood of Western red cedar.
[RB] PERMIT. An official document or certificate issued by the authority having jurisdiction building official that authorizes performance of a specified activity.
[RB] PERSON. An individual, heirs, executors, administrators or assigns, and a firm, partnership or corporation, its or their successors or assigns, or the agent of any of the aforesaid. PHOTOELECTRIC LIGHT OBSCURATION SMOKE DETECTION. The principle of utilizing a light source and a photosensitive sensor onto which the principle portion of the source emissions is focused. When smoke particles enter the light path, some of the light is scattered and some is absorbed, thereby reducing the light reaching the reducing sensor. The light reduction signal is processed and used to convey an alarm condition when it meets preset criteria.
PHOTOELECTRIC LIGHT-SCATTERING SMOKE DETECTION. The principle of utilizing a light source and a photosensitive sensor arranged in a manner so that the rays from the light source do not normally fall on the photosensitive sensor. When smoke particles enter the light path, some of the light is scattered by reflection and refraction onto the sensor. The light signal is processed and used to convey an alarm condition when it meets preset criteria.
POLLUTION. A low-hazard or non-health hazard impairment of the quality of the potable water to a degree that does not create a hazard to the public health and that does adversely and unreasonably affect the aesthetic qualities of such potable water for domestic use. PLUMBING CODE. Shall mean the Oregon Plumbing Specialty Code as adopted by OAR 918-750-0110.
[RB] REGISTERED DESIGN PROFESSIONAL. An individual who is registered or licensed to practice their respective design profession as defined by the statutory requirements of the professional registration laws of the state. or jurisdiction in which the project is to be constructed.
RELIEF VALVE, TEMPERATURE. Reseating or self-closing type. An automatic valve which opens and closes a relief vent, depending on whether the temperature is above or below a predetermined value.
Reset or self-closing type. An automatic valve that opens and closes a relief vent, depending on whether the temperature is above or below a predetermined value.
Manual reset type. A valve that automatically opens a relief vent at a predetermined temperature and which must be manually returned to the closed position.
RELIEF VALVE, VACUUM. A device to prevent excessive buildup of vacuum in a pressure vessel. A valve that automatically opens and closes a vent for relieving a vacuum within the hot water supply system, depending on whether the vacuum is above or below a predetermined value.
RESIDENTIAL AIRCRAFT HANGAR. An accessory building less than 2,000 square feet (186 m2) and 20 feet (6096 mm) in building height constructed on a one- or two-family property where aircraft is stored. Such use will be considered as a residential accessory use incidental to the dwelling.
[RB] SEISMIC DESIGN CATEGORY (SDC). A classification assigned to a structure based on its occupancy category and the severity of the design earthquake ground motion at the site. For the purposes of this code, SDC classification shall be in accordance with Table R301.2.2.1.1.
SEWAGE PUMP. A permanently installed mechanical device for removing sewage or liquid waste from a sump. SHAFT. An enclosed space extending through one or more stories of a building, connecting vertical openings in successive floors, or floors and roof.
[RB] SHEAR WALL. A general term for 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 associated limitations in Section R301.2 of this code. A wall designed to resist lateral forces parallel to the plane of the wall.
[RB] SOLID MASONRY. Load-bearing or nonload-bearing construction using Masonry units where the whose net cross-sectional area in every of each unit in any plane parallel to the load-bearing surface is not less than 75 percent or more of its gross cross-sectional area measured in the same plane. Solid masonry units shall conform to ASTM C 55, C 62, C 73, C 145 or C 216.
STACK. Any main vertical DWV line, including offsets, that extends one or more stories as directly as possible to its vent terminal. [RB] STACK BOND. The placement 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.
STATE BUILDING CODE. The combined specialty codes adopted pursuant to ORS 455 and any code regulation or requirement in effect at the time of construction—regardless of when the building or structure was built.
[RB] STORY. That portion of a building included between the upper surface of a floor and the upper surface of the floor or roof next above, except that the topmost story shall be that portion of the building included between the upper surface of the topmost floor and the ceiling or roof above. See “Height, story.” If the finished floor level directly above a usable or unused underfloor space is more than 6 feet (1829 mm) above grade, as defined herein, for more than 50 percent of the total perimeter or is more than 12 feet (3658 mm) above grade, as defined herein, at any point, such usable or unusable underfloor space shall be considered as a story.
STRUCTURALLY DEPENDENT BUILDING. A building in which individual dwelling units are designed to rely on adjacent units for structural support of vertical or lateral loads.
STRUCTURALLY INDEPENDENT BUILDING. A building where individual dwelling units meet the requirements of Section R302.2.5 and are designed to have independent vertical and lateral force-resisting systems capable of resisting all applied directional loads.
[RB] THERMAL ISOLATION. Physical and space conditioning A separation from of conditioned spaces, between a sunroom addition and a dwelling unit, consisting of existing or new wall(s), doors, and/or windows. consisting of existing or new walls, doors or windows. The conditioned space(s) shall be controlled as separate zones for heating and cooling or conditioned by separate equipment
For definition applicable in Chapter 11, see Section N1101.6..
[RE] THERMAL RESISTANCE, R-VALUE. See Chapter 11 for the definition of “Thermal resistance (R).” 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) (m2 • K)/W.
[RE] U-FACTOR, THERMAL TRANSMITTANCE. See Section N1101.6 for definition applicable in Chapter 11 for the definition of “Thermal transmittance.”
[RB] UNDERLAYMENT. One or more layers of felt, sheathing paper, nonbituminous saturated felt, or other approved material over which a steep-slope roof covering, , with a slope of 2 to 12 (17-percent slope) or greater, is applied.
[RB] VAPOR PERMEABLE. The property of having a moisture vapor permeance rating of 5 perms (2.9 x 10-10 kg/Pa • s • m2) or greater, where tested in accordance with the desiccant method using Procedure A of ASTM E96. A vapor permeable material permits the passage of moisture vapor.
VAPOR RETARDER. A vapor-resistant material, membrane or covering such as foil, plastic sheeting, or insulation facing having a permeance rating of 1 perm (5.7 • 10-11kg/Pa • s • m2) or less, when tested in accordance with the dessicant method using Procedure A of ASTM E96. Vapor retarders limit the amount of moisture vapor that passes through a material.
WATER OUTLET. A valved discharge opening, including a hose bibb, through which water is removed from the potable water system supplying water to a plumbing fixture or plumbing appliance that requires either an air gap or backflow prevention device for protection of the supply system. [RB] WATER-RESISTIVE BARRIER. A material behind an exterior wall covering that is intended to resist liquid water that has penetrated behind the exterior covering from further intruding into the exterior wall assembly.
[RB] WOOD STRUCTURAL PANEL. A panel manufactured from veneers; or wood strands or wafers; or combination of veneer and wood strands or wafers bonded together with waterproof synthetic resins or other suitable bonding systems. Examples of wood structural panels are plywood, OSB or composite panels.
Plywood. A wood structural panel comprised of piles of wood veneer arranged in cross-aligned layers. The piles are bonded with waterproof adhesive that cures on application of heat and pressure.