Assembly Usage Disclaimer

Roof Deck Constructions

See General Information for Roof Deck Constructions

Construction No. 240

March 28, 2012

Wind-Uplift — Class 90 and 60

(See item No. 1)

Fire Not Investigated

    1. Metal Roof Deck Panels* — For Class 60 No. 26 MSG min gauge coated steel — For Class 90 No. 24 MSG min gauge coated steel. Panels may have optional minor ribs in flat area between side ribs. Panels continuous over 2 or more spans. End laps to occur adjacent to purlins with panels overlapped 2 in. Panels may be snapped together at their side ribs or seamed with a special electric seaming tool. A bead of sealant may be used at panel end joints and side laps.

    AEP SPAN, DIV OF ASC PROFILES (View Classification) — "Weather Seam - 24" Panel

    ALLIANCE STEEL INC (View Classification) — "Alliance Seam 24"

    CENTRIA, A DIVISION OF NCI GROUP, INC (View Classification) — "SDP 300"

    FABRAL INC (View Classification) — "3" Snap Rib"

    METAL SALES MANUFACTURING CORPORATION (View Classification) — "Snap-Loc 24" Panel

    WHIRLWIND STEEL BUILDINGS INC (View Classification) — "Super Seam - 24" Panel

    2. Roof Deck Fasteners* — (Panel Clips) — Fixed or sliding type. Base fabricated from 0.060 in. thick coated steel. Tab fabricated from 0.031 in. thick spring steel. Clips fabricated in two different heights and spaced 24 in. OC with clips located at panel sides for metal panels and with an additional clip located at the center span of the building unit fastened to the side lap support channel (Item No. 9).

    BUILDING RESEARCH SYSTEMS INC (View Classification) — "ASC Standing Seam Clip"

    BUILDING PRODUCTS DEVELOPMENT INC (View Classification) — "FC451", "FC452", "FC453"

    2A. Roof Deck Fasteners* — (Panel Clips) — (not shown) Sliding type. Base fabricated from No. 17 MSG min coated steel. Width 4-1/4 in; height 2 in. min, 3.30 in. max. Tab fabricated from No. 28 MSG min coated steel. Width 3 in., height 1-15/16 in.

    BUILDING PRODUCTS DEVELOPMENT INC (View Classification) — "NC34512", "NC34513", "NC34514"

    BUILDING RESEARCH SYSTEMS INC (View Classification) — "Challenger 400 Series Clip "

    3. Fasteners — (Screws) — Fasteners, used to attach the panel clips to the purlins and to the side lap support channels (Item 9), to be No. 14 by 1-1/4 in. long self-drilling, self-tapping, hex-head, plated steel screws used without separate washers. A min of one screw per clip to be used. Fasteners, used at the end laps to be same type. Spacing to be in a 1-5-6-6-5-1/2 in. pattern with screws inserted into pre-drilled guide holes.

    As an alternate fastener at the end lap, No. 17 by 1 in. self-drilling, self-tapping, hex-head plated steel screws with a separate 5/8 in. diameter steel washer and a neoprene sealing washer may be used.

    4. Insulation — (Optional) — Insulation to be a compressible blanket type, 6 in. maximum thickness before compression.
    5. Thermal Spacer — (Optional) — Spacer to be nominal 1 in. maximum thickness, 5-1/2 in. maximum width fabricated from beaded foamed plastic. Spacers located over purlins.
    6. Panel End-Lap Detail — Not shown — The panel end-lap may be one of the following options depending on the pitch of the roof:
      A. Fixed panel ends attached directly to purlins with or without a cinch strap.
      B. Floating panel ends located adjacent to purlin supports with ends utilizing a back up plate and with an optional cinch strap.

      In all options, the width of the end-lap is to be 2 in. Fasteners used in all options are also to be of the same type.

      The back up plate is to be 4 in. wide, fabricated from 0.046 in. thick coated steel to the approximate profile of the roof deck panels. (Yield strength to be 50,000 psi). Cinch strap to be 1-1/2 in. wide, fabricated from 0.091 in. thick aluminum. Cinch strap to be fabricated to the general profile of the panels with one end of the strap to include the profile of the side rib of the panel. Five 1/4 in. diameter pre-punched guide holes to be located in strap with four guide holes on one side of the rib profile and one guide hole located on the other side.

      When panel end-lap is not continuous, (i.e., a single course) an additional back up plate and cinch strap is to be located in line with the end-lap components in adjacent panels and fastened in the same manner as at the end-lap panel course.

    7. Purlins — No. 16 MSG minimum thickness steel (50,000 psi minimum yield strength) or, minimum type H open web steel joists with the minimum thickness of the upper flange to be 0.060 in. thick.
    8. Building Unit* — (Optional) — Used with 24 MSG thick panels only — Formed to the same profile as the metal roof deck panels (Item No. 1). Building unit continuous over two spans. To be used with Item 9.

    ALLIANCE STEEL INC (View Classification) — "Alliance Seam 24 Skylight Panel"

    WHIRLWIND STEEL BUILDINGS INC (View Classification) — "Super Seam — 24 Skylight Unit."

    9. Building Unit Side Lap Support — (Optional) — (Used with Item 8 only). Used at both sides of building unit and adjacent ribs. Channel shaped 2 in. wide with a 3/4 in. leg and a 1-1/16 in. rib. Fabricated from No. 16 MSG steel. Length to extend over two purlin spans.

    Refer to General Information, Roof Deck Constructions for items not evaluated.

    * 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 2012-03-28
TGKX.240 240 TGKX 754398005 CONSTRUCTION Active 20120328 20120328 754398005 121975001 128669004 346938001 997005001 160466001 253116001 100028941 100028941 253116001 121975001 160466001

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