FIRE-RESISTANCE DESIGN

Assembly Usage Disclaimer

BXUV - Fire Resistance Ratings - ANSI/UL 263 Certified for United States

BXUV7 - Fire Resistance Ratings - CAN/ULC-S101 Certified for Canada

See General Information for Fire-resistance Ratings - ANSI/UL 263 Certified for United States
Design Criteria and Allowable Variances

See General Information for Fire Resistance Ratings - CAN/ULC-S101 Certified for Canada
Design Criteria and Allowable Variances

Design No. H516

May 23, 2019

Unrestrained Assembly Rating - 1 or 1-1/2 Hr.

This design was evaluated using a load design method other than the Limit States Design Method (e.g., Working Stress Design Method). For jurisdictions employing the Limit States Design Method, such as Canada, a load restriction factor shall be used — See Guide BXUV or BXUV7

* Indicates such products shall bear the UL or cUL Certification Mark for jurisdictions employing the UL or cUL Certification (such as Canada), respectively.

    1. Steel Deck — Min 9/16 in. deep, 22 MSG galv corrugated fluted steel deck. Overlapped one corrugation at each side and attached to each joist with 5/8 in. long No. 10-16 TEK screws at each side joint and no more than 12 in. OC between sides.
    2. Floor Topping Mixture* — Compressive strength to be 3500 psi min. Minimum thickness to be 1 in. as measured from the top plane of the steel deck or the Floor Mat Material*. Refer to manufacturer's instructions accompanying the material for specific mix design. An ethylene vinyl acetate adhesive may be applied to the steel deck prior to the installation of the floor topping mixture at a maximum application rate of 0.025 lbs./ft2.

    HACKER INDUSTRIES INCFirm-Fill CMD


    Floor Mat Materials* — (Optional) - Floor mat material nom 5/64 in. (2 mm) thick adhered to steel deck with Hacker Floor Primer. Primer to be applied to the surface of the mat prior to the placement of floor-topping mixture. Floor topping thickness a min 1 in. (25 mm) over the floor mat.

    HACKER INDUSTRIES INCHacker Sound-Mat.


    3. Structural Steel Members* — The proprietary joists are channel-shaped, 9-1/4 in. min depth. Joists are fabricated from min No. 16 MSG galv steel. Joists spaced max 24 in. OC. Joists attached to joist rim with three 3/4 in. long self-drilling No. 10-16 TEK screws through tab to the outside of the web. At joist rim splices bearing on supports, joists rims are connected using an overlapping section of a 12 in. long splice plate (a joist piece) or TradeReady splice plate, with four 3/4 in. long self-drilling No. 10-16 TEK screws to each rim piece.

    CLARKDIETRICH BUILDING SYSTEMSType TDJ or TDW floor joists, TD rim joist


    4. Joist Bridging — Not shown — For use with Item 3- Installed immediately after joists are erected and before construction loads are applied. The bridging, 21/2TDSB18, consisting of No. 18 MSG galv steel, 2-1/2 in. wide by 21-3/4 in. long structural bridging staggered between the steel joists attached to the bottom joist flange with one 3/4 in. long self-drilling No. 10-16 TEK screw at each end tab of bridging. Solid bridging consisting of cut to length joist sections placed between outer joists and at center joist with 8 ft OC max spacing. Solid bridging are screw-attached at joist web using EasyClip™ S-Series S547 (which is a 1-1/2 in. by 1-1/2 in. by 7 in. long, 16 MSG, min 50 ksi support clip) with two 3/4 in. long self-drilling No. 10-16 TEK screws per leg on one side and the other side with an EasyClip™ E-Series E547 (which is a 4 in. by 1-1/2 in. by 7 in. long, 16 MSG, min 50 ksi support clip) with two 3/4 in. long self-drilling No. 10-16 TEK screws per leg. Alternatively, blocking may consist of or 925JB24 prefabricated joist blocking attached with two No. 10-16 TEK screws at each connection angle.
    5. Furring Channels — Formed of No. 25 MSG galv steel, nominal 2-1/2 in. wide by 7/8 in. deep, spaced 24 in. OC perpendicular to joists and friction fit into Steel Framing Members (Item 6). Ends of adjoining channels overlapped 6 in. and tied together with double strand of No. 18 SWG galv steel wire near each end of overlap or with two TEK screws along each leg of the 6 in. overlap. Additional channels, spaced back to back, nominally 6 in. apart, required at gypsum board (Item 7) butt joints. Butt joint channels held in place by strong back channels placed upside down, on top of, and running perpendicular to primary furring channels, extending 6 in. longer than length of gypsum side joint. Strong back channels spaced maximum 48 in. OC . Strong back channels secured to every intersection of primary furring channels with four 7/16 in. pan head screws, two along each of the legs at intersections. Butt joint channels run perpendicular to strong back channels and shall be minimum 6 in. longer than length of joint, secured to strong back channels with 7/16 in. pan head screws, two along each of the legs at intersection with strong back channels.
    6. Steel Framing Members* — Used to attach furring channels (Item 5) to joists (Item 3). Clips spaced 48 in. OC and secured along joist webs at each furring channel intersection with min. 3/4 in. long self-drilling No. 10-16 TEK screws through each of the provided hole locations. Furring channels are friction fitted into clips.

    PAC INTERNATIONAL L L CType RSIC-S1-1 Ultra


    7. Gypsum Board* — Two layers of nom 5/8 in. thick, 4 ft wide gypsum board are installed with long dimensions perpendicular to furring channels. Base layer attached to furring channels with 1 in. Type S screws spaced 12 in. OC, starting 1-1/2 in. and 6 in. from side joists. Butt joints of base layer staggered minimum 24 in. Side joints of base layer centered between joists. Face layer attached to furring channels with 1-5/8 in. Type S screws spaced 8 in. OC, stating 1-1/2 in. and 4 in. from side joints. Butt joints of face layer staggered minimum 24 in. OC. Side joints of face layer centered between joists and staggered 24 in. from base layer side joints.

    PABCO BUILDING PRODUCTS L L C, DBA PABCO GYPSUMType C.


    8. Batts and Blankets* — Mineral wool or glass fiber insulation, min 3-1/2 in. thick, bearing the UL Classification Marking for Surface Burning Characteristics. suspended in the concealed space with min 18 ga steel wires attached to the top chord of joists spaced nominally 18 in. OC.
    9. Joint System — Not Shown — Vinyl, dry or premixed joint compound, applied in two coats to joints and screw heads; paper tape, 2 in. wide, embedded in first layer of compound over all joints.

    * Indicates such products shall bear the UL or cUL Certification Mark for jurisdictions employing the UL or cUL Certification (such as Canada), respectively.

Last Updated on 2019-05-23
BXUV.H516 H516 BXUV 114328003 DESIGN Active 20190523 20190523 130869004 130869004 100570268 114328003 100046076

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