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FIRE AND SMOKE PROTECTION FEATURES 1.2. By a horizontal distance of not less than 712.1 shall be protected in accordance with Sections 714.4.1 the depth of the wall cavity where the through 714.4.2.2. ` wall cavity is filled with cellulose loose- 714.4.1 Fire-resistance-rated assemblies.Penetrations of fill,rockwool or slag mineral wool insula- the fire-resistance-rated floor, floor/ceilingassemblyor Lion; the ceiling membrane of a roof/ceiling assembly shall 1.3. By solid fireblocking in accordance with comply with Sections 714.4.1.1 through 714.4.1.4. Pene- Section 718.2.1; nations in horizontal smoke barriers shall also comply 1.4.By protecting both outlet boxes with with 714.5. listed putty pads;or 714.4.1.1 Through penetrations. Through penetra- • 1.5. By other listed materials and methods. tions of fire-resistance-rated horizontal assemblies shall comply with Section 714.4.1.1.1 or 714.4.1.1.2. 2. Membrane penetrations by listed electrical boxes of any material, provided such boxes have been Exceptions: tested for use in fire-resistance-rated assemblies 1. Penetrations by steel, ferrous or copper con- and are installed in accordance with the instmc- duits, pipes, tubes or vents or concrete or tions included in the listing. The annular space masonry items through a single fire-resis- between the wall membrane and the box shall not tance-rated floor assembly where the annular exceed 1/s inch (3.1 nun)unless listed otherwise. space is protected with materials that prevent Such boxes on opposite sides of the wall or path- the passage of flame and hot gases sufficient don shall be separated by one of the following: to ignite cotton waste when subjected to 2.1. By the horizontal distance specified in the ASTM E 119 or UL 263 time-temperature fire listing of the electrical boxes; conditions under a minimum positive pressure differential of 0.01 inch (2.49 Pa) of water at 2.2. By solid fireblocking in accordance with the location of the penetration for the time Section 718.2.1; periodequivalent to the fire-resistance rating 2.3. By protecting both boxes with listed putty of the construction penetrated. Penetrating pads;or items with a maximum 6-inch(152 mm)nom- inal By other listed materials and methods. diameter shall not be limited to the pene- 2.4.3. Membrane tration of a single fire-resistance-rated floor penetrations by electrical boxes of assembly, provided the aggregate area of the any size or type,which have been listed as part of openings through the assembly does not a wall opening protective material system for use exceed 144 square inches(92 900 mm')in any in fire-resistance-rated assemblies and are 100 square feet(9.3 m2)of floor area. installed in accordance with the instructions - included in the listing. 2. Penetrations in a single concrete floor by steel, ferrous or copper conduits, pipes, tubes or 4. Membrane penetrations by boxes other than elec- vents with a maximum 6-inch (152 mm)nom- trical boxes,provided such penetrating items and that diameter, provided the concrete, grout or the annular space between the wall membrane mortar is installed the full thickness of the and the box, are protected by an approved mem- floor or the thickness required to maintain the brane penetration firestop system installed as fire-resistance rating. The penetrating items tested in accordance with ASTM E 814 or UL shall not be limited to the penetration of a sin- 1479, with a minimum positive pressure differen- gle concrete floor, provided the area of the tial of 0.01 inch(2.49 Pa)of water,and shall have opening through each floor does not exceed an F and T rating of not less than the required 144 square inches(92 900 mm'). fire-resistance rating of the wall penetrated and 3. Penetrations by listed electrical boxes of any be installed in accordance with their listing. material, provided such boxes have been 5. The annular space created by the penetration of tested for use in fire-resistance-rated assem- an automatic sprinkler, provided it is covered by blies and installed in accordance with the a metal escutcheon plate. instructions included in the listing. 714.3.3 Dissimilar materials. Noncombustible penetrat- 714.4.1.1.1 Installation. Through penetrations shall ing items shall not connect to combustible items beyond be installed as tested in the approved fire-resistance- the point of firestopping unless it can be demonstrated that rated assembly. the fire-resistance integrity of the wall is maintained. 714.4.1.1.2 Through-penetration p system. 714.4 Horizontal assemblies. Penetrations of a floor, floor/ Through penetrations shall be protected by an ceiling assembly or the ceiling membrane of a roof/ceiling approved through-penetration assembly not required to be enclosed in a shaft by Section firestophASTM system saeinstalled and tested in accordance with ASTM E 814 or UL 1479, with a minimum positive pressure dif- 2014 OREGON STRUCTURAL SPECIALTY CODE 139