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'FIRE A140 SMOKE PROTECTION FEATURES ORIZONTAL ASSEMBLY. A fire-resistance-rated floor of time the spread of fire through penetrations. The F and T of assembly of materials designed to restrict the spread of rating criteria for penetration firestop systems shall be in accor- e n which continuity is maintained dance with ASTM E 814 or UL 1479.See definitions of"F rat- JOINT.The linear opening in or between adjacent fire-resis- ing' and"T rating." tance-rated assemblies that is designed to allow independent movement of the building in any plane caused by thermal,seis- SECTION 703 ink, wind or any other loading. FIRE-RESISTANCE RATINGS AND FIRE TESTS MEMBRANE PENETRATION.An opening made through 703.1 Scope. Materialsprescribed herein for fire resistance one side(wall,floor or ceiling membrane)of an assembly. P • shall conform to the requirements of this chapter. MEMBRANE-PENETRATION FIRESTOP. A material, device or construction installed to resist for a prescribed time 703.2 Fire-resistance ratings. The fire-resistance rating of period the passage of flame and heat through openings in a pro- building elements, components or assemblies shall be deter- tective membrane in order to accommodate cables,cable trays, mined in accordance with the test procedures set forth in conduit,tubing,pipes or si items. ASTM E 119 or 111.263 or in accordance with Section 703.3. Where materials,systems or devices that have not been tested MINERAL FIBER.Insulati ecomposed principally of fibers as part of a fire-resistance-rated assembly are incorporated into manufactured from rock,slag or glass,with or without binders. the building element, component or assembly, sufficient data MINERAL WOOL.Synthetic vitreous fiber insulation made shall be made available to the building official to show that the by melting predominately igneous rock or furnace slag, and required fire-resistance rating is not reduced. Materials and other inorganic materials,and then physically forming the melt methods of construction used to protect joints and penetrations into fibers, in fire-resistance-rated building elements, components or PENETRATION FIRESTOP. A through-penetration assemblies shall not reduce the required fire-resistance rating. firestop or a membrane penetration firestop. Exception: In determining the fire-resistance rating of SELF-CLOSING.As applied to a fire door or other opening exterior bearing walls,compliance with the ASTM E 119 or UL 263 criteria for unexposed surface temperature rise and protective, means equipped with an device that will ensure ignition of cotton waste due to passage of flame or gases is closing after having been opened. required only for a period of time corresponding to the 'AFT. An enclosed space extending through one or morekr required fire-resistance rating of an exterior nonbearing ies of a building, connecting vertical openings in succes- wall with the same fire separation distance,and in a build- sive floors,or floors and roof. ing of the same group. When the fire-resistance rating SHAFT ENCLOSURE. The walls or construction forming determined in accordance with this exception exceeds the the boundaries of a shaft. fire-resistance rating determined in accordance with ASTM E 119 or UL 263,the fire exposure time period,water pres- SMOKE BARRIER.A continuous membrane,either vertical sure and application duration criteria for the hose stream test or horizontal,such as a wall,floor or ceiling assembly,that is of ASTM E 119 or UL 263 shall be based upon the designed and constructed to restrict the movement of smoke. fire-resistance rating determined in accordance with this SMOKE COMPARTMENT. A space within a building exception. enclosed by smoke barriers on all sides,including the top and 703.2.1 Nonsymmetrical wall construction.Interior walls bottom. and partitions of nonsymmetrical construction shall be SMOKE DAMPER.A listed device installed in ducts and air tested with both faces exposed to the furnace, and the transfer penings designed to resist the passage of smoke.The assigned fire-resistance rating shall be the shortest duration device is installed to operate automatically, controlled by a obtained from the two tests conducted in compliance with smoke detection system, and where required, is capable of ASTM E 119 or UL 263. When evidence is furnished to being positioned from a fire command center. show that the wall was tested with the least fue-resistant side exposed to the furnace,subject to acceptance of the building SPLICE.The result of a factory and/or field method ofjoining official, the wall need not be subjected to tests from the or connecting two or more lengths of a fire-resistant joint sys- opposite side(see Section 705.5 for exterior walls). tern into a continuous entity. 703.2.2 Combustible components. Combustible aggre- T RATING.The time period that the penetration firestop sys- gates are permitted in gypsum andportland cement concrete tem,including the penetrating item,limits the maximum tem- mixtures forfire-resistance-rated construction.Any compo- perature rise to 325°F (163°C) above its initial temperature nent material or admixture is permitted in assemblies if the through the penetration on the nonfire side when tested in resulting tested assembly meets the fire-resistance test accordance with ASTM E 814 or UL 1479. requirements of this code. THROUGH PENETRATION. An opening that passes 703.2.3 Restrained classification. Fire-resistance-not ugh an entire assembly- assemblies tested under ASTM H119 or U1,263 tance-ot be l raOUCH-PENETRATION FIRESTOP SYSTEM. An shall considered to be restrained unless evidence satisfactory to assemblage of specific materials or products that are designed, the building official is furnished by the registered design tested and fife-resistance rated to resist for a prescribed period professional showing that the construction qualifies for a 100 2010 OREGON STRUCTURAL SPECIALTY CODE