Division 7 Ebook Page 595 Curtain Wall Perimeter Fire Containment Joint ASTM E2307 Tech Bulletin

Technical Bulletin CW-01 ENCLOSURE SOLUTIONS Pub. No. 10020920. 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/enclosure THERMAFIBER, INC. ONE OWENS CORNING PARKWAY TOLEDO, OHIO, USA 43659 888-TFIBER1 [834-2371] www.thermafiber.com Design Notes: 1 Perimeter fire containment systems are specific constructions consisting of a floor with an hourly fire endurance rating and an exterior wall typically with no hourly rating. The perimeter fire containment system consists of protecting the spandrel area and joint material installed in the void between the floor and the wall. The hourly rating applies only to the complete system. Individual components are not assigned a rating and are not to be interchanged between systems. 2 Section 715.4 of the 2015 IBC requires an "approved" perimeter fire containment system tested in accordance with ASTM E2307. 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. 1 Engineering judgments are based on testing, or data from similar perimeter fire containment system tests, or other evidence and third party engineering judgments that the proposed system meets the basic design principles necessary for providing a perimeter fire containment system. These basic design principles include: References: 1. International Building Code Council, Inc.; 4051 West Flossmoor Road, Country Club Hills, IL 60478-5795 2. ASTM E2307, Standard Test Method for Determining Fire Resistance of Perimeter Fire Barrier Systems Using Intermediate-Scale, Multi-Story Test Apparatus; ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959 3. Underwriters Laboratories (UL) Designs, Fire Resistance Directory, UL 333 Pfingsten Road, Northbrook, IL 60062 1 Mechanical attachment of minimum 2" thick Owens Corning Thermafiber FireSpan 90 Curtain Wall Insulation with Owens Corning Thermafiber Patented Impasse Hangers, attached per the requirements of the specific tested design. 2 Typically, a backer/reinforcement member (min. 20 gauge, galvanized steel T-Bar, hat channel or L-angle depending on the requirements of the tested design) is required at the floor line behind the curtain wall insulation to keep it from bowing due to the compression-fit of the Safing Insulation. However, Thermafiber Impasse systems such as CW-D-1014 do not require a backer reinforcement member since the location of the horizontal transom, in combination with the Impasse Horizontal Hangers, provides the support necessary to keep the Thermafiber FireSpan 90 insulation from bowing. Refer to the specific UL design 3 for details regarding the requirements for the backer/reinforcement member. 3 Compression-fit Owens Corning Thermafiber Safing Insulation within the safe-off void to create a tight seal that maintains its integrity, preventing the propagation of flame and hot gasses through the safe-off joint. Refer to the specific UL design for the proper Safing Insulation installation method and compression requirements. 4 Protect exposed vertical aluminum mullions with Owens Corning Thermafiber FireSpan 90 Mullion Covers. Thickness and width of mullion covers are outlined in the specific UL Design. Typically, they are 2" thick x 12" wide and abut up to and extend down from the bottom of the Safing Insulation to the bottom of the vertical mullion. Mullion covers are also to extend from the top of the Safing Insulation and extend up to the top of the vertical mullion. Mullion covers are attached with spiral anchors every 12" oc. max. This detail is required to protect the aluminum vertical framing. If left unprotected, the flame and temperature exposure of a fire will cause the framing to melt and cause the system to fail. 5 Apply an approved smoke sealant material to provide a barrier against the passage of smoke through the safe-off void. The smoke sealant is typically spray applied to the top of the Owens Corning Thermafiber Safing Insulation (non fire exposure side). Typically a 1" over spray is specified extending the smoke seal onto the floor slab and the interior face of the curtain wall system. Refer to the specific UL listing for the proper application and approved smoke sealant manufacturer.

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