Division 7 Ebook Page 591 CMU Perimeter Fire Containment Joint ASTM E2307 Tech Bulletin

Technical Bulletin CMU-04 ENCLOSURE SOLUTIONS Pub. No. 10020918. Printed in U.S.A. May 2016. THE PINK PANTHER & 1964-2016 Metro-Goldwyn-Mayer Studios Inc. All Rights Reserved. The color PINK is a registered trademark of Owens Corning. 2016 Owens Corning. All Rights Reserved. 2016 Thermafiber, Inc. All Rights Reserved. OWENS CORNING INSULATING SYSTEMS, LLC ONE OWENS CORNING PARKWAY TOLEDO, OHIO, USA 43659 1-800-GET-PINK www.owenscorning.com THERMAFIBER, INC. ONE OWENS CORNING PARKWAY TOLEDO, OHIO, USA 43659 888-TFIBER1 [834-2371] www.thermafiber.com Figure 1 Owens Corning Enclosure Solutions hollow core plank at bearing wall Air Space (1" Min. - 2" Max.) Owens Corning FOAMULAR CW25 XPS Face Brick Hook & Ladder Joint Reinforcement at 16" O.C. w/ Pintle Wire Tie NFPA 285 Compliant Air & Water Barrier CMU Mortar Droppings Collection Device at Floor Line or Approx. 10' to 12' Intervals Pre-Cast Hollow Core Plank *Project Engineering is Required for Reinforced Bond Beam and Hollow Core Plank Connections Topping Slab D esign Notes: 1 Often the manner in which CMU wall systems intersect with floor systems creates an inherently fire resistant perimeter containment condition. See Figure 1. an inherently fire resistant perimeter containment condition. See Figure 1. 2 Fire resistant joint systems, see Figures 2, 3 and 4, are specific constructions consisting of a floor, wall or roof with an hourly fire endurance rating, and a joint material installed in the void between the floor/roof and the wall. The hourly rating applies only to the complete system. The individual components are not assigned a rating and are not to be interchanged between systems (i.e. manufacturer's components from one system being used to replace another manufacturer's components in a given system). 3 Section 715.1 of the 2015 IBC requires an "approved" fire resistant joint tested in accordance with ANSI/UL 2079, or, ASTM E 1966. Every building has unique design details that may not exactly match the system details published. The IBC recognizes that there may be variations per individual buildings that may require adjustment via engineering judgments and therefore enables "approval acceptable to the building official". Engineering judgments are typically based on testing, or data from similar fire resistant joint system tests, or other evidence and third party engineering judgments that the proposed system meets the basic principles necessary for fire resistant joint systems. 4 Typically Safing Insulation, if needed for the construction detail, is to be a minimum of 25% compression fit between the slab edge and the wall system. Compression of the Safing Insulation creates a tight seal that maintains its integrity preventing flame and hot gases from breaching through to the floor above. 5 .Apply smoke sealant to the top of the Safing Insulation to make the system smoke tight if needed. The smoke sealant is commonly spray applied to the top of the Safing Insulation (non-fire exposure side). Typically a 1" over spray is specified extending the smoke seal onto the floor slab on one side, and the wall surface on the other, to create a continuous seal that impedes the passage of smoke. References: 1 International Building Code; International Code Council, Inc.; 4051 West Flossmoor Road, Country Club Hills, IL 60478-5795 2 ANSI/UL 2079, Standard for Tests for Fire Resistance of Building Joint Systems, Underwriters Laboratories, 333 Pfingsten Road, Northbrook, IL 60062-2096 3 ASTM E 1966, Standard Test Method for Fire Resistive Joint Systems, ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA, 19428-2959

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