Assembly Usage Disclaimer

Roof Deck Constructions

See General Information for Roof Deck Constructions

Construction No. 540

July 01, 2013

Uplift — Class 90

Fire Not Investigated

    1. Metal Roof Deck Panels* — No. 24 MSG min. Coated steel panels continuous over two or more spans. End laps to occur adjacent to purlins with panels overlapped 3 inch max. End lap to include back-up plate (Item No. 2B). Side laps to be tightened and crimped with a special motorized crimping machine. A line of sealant may be used at panel end and side laps.

    A & S BUILDING SYSTEMS L P (View Classification) — "Double-Lok"

    B C STEEL BUILDINGS INC (View Classification) — "BCL-MS"

    CENTRAL STATES MFG INC (View Classification) — "Central-Seam Plus"

    CHIEF INDUSTRIES INC (View Classification) — "MSC".

    GOLDEN EMPIRE MFG INC, DBA GEM BUILDINGS (View Classification) — "GEM Superior-24"

    NCI BUILDING SYSTEMS L P (View Classification) — "Double-Lok"

    MBCI (View Classification) — "Double-Lok"

    MESCO METAL BUILDINGS (View Classification) — "Double-Lok"


    UNITED STRUCTURES OF AMERICA INC (View Classification) — "Guardian-Lok"

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

    2. Roof Deck Fasteners* — (Panel Clips)—Two piece sliding clip consisting of min No. 22 MSG minimum coated steel top section and min No. 14 MSG coated steel base. One clip to be used at each purlin location. Guide holes in the bottom of clip to accommodate two (2) screw fasteners.

    BUILDING PRODUCTS DEVELOPMENT INC (View Classification) — "NC34501", "NC34502", "NC34701", "NC34702"

    CHIEF INDUSTRIES INC (View Classification) — "MSC Sliding Clip"

    GOLDEN EMPIRE MFG INC, DBA GEM BUILDINGS (View Classification) — "GEM Low Superior Clip", "GEM High Superior Clip"

    NCI BUILDING SYSTEMS L P (View Classification) — "Double-Lok Floating Clip", "Double-Lok Sliding Clip" or "Double-Lok 2" Sliding Hi-Thermal Clip" or Double-Lok 4" High and Low Sliding Clip".

    2A . Roof Deck Fasteners* — (End lap Back-up Plate)—(not shown) No. 16 MSG minimum gauge coated steel. Used at panel end laps consisting of a lower section 5-5/8 inches wide with a 1 inch leg and formed to the general profile of the panel and having four 1 inch wide by 3/4 inch long tabs for sliding over the panel end.

    NCI BUILDING SYSTEMS L P (View Classification) — "Back-Up Plate"

    The 1-1/2 inch wide by 16 MSG upper section can be used as an option. When using the upper section, only five (5) fasteners are required at the end lap.

    2B. End-Lap Assembly (Alternate) (Optional) (Stud Plate and Cinch Strap) (Not Shown) — As an alternate to End lap Back-up Plate (Item 2A). Stud Plate (16 MSG Galv.) placed on top of purlin (Item 6) with the first stud located 1-31/32 in. from either rib and then spaced in a 4, 4-1/8, 2-3/8, 4-1/8, 4 in. pattern. Upper and Lower pre-punched metal roof deck panels (Item 1), with pre-cut tape sealer, to accommodate stud locations are positioned to receive Stud Plate. Cinch Strap (0.100 in. thick aluminum) placed over studs that penetrate both lower and upper panels. Flange nut, 1/4 in. dia., hand installed on each stud. Roof Deck Fastener (Panel Clip), Item 2, installed over male leg of panel at purlin location and secured as described in Fasteners (screws) (Item 3).
    3. Fasteners — (Screws)—Fasteners to attach panel clips and bearing plates (Items No. 2 and 4) through rigid insulation and metal deck (Item No. 11) into steel purlin (Item No. 6) to be No. 14 self-tapper. Fastener length to be a minimum of 1/2 inch longer than the total thickness of the rigid insulation (Item No. 54) and the metal liner panel (Item No. 11). Two (2) fasteners per clip. As an alternate fastener a No. 12 self-drilling, self-tapping fastener may be used. Fasteners used at end laps to be 1/4-14 by 1 inch long self-drilling, hex-head plated steel screws with 5/8 inch O.D. metal backed sealing washer. Alternate fastener at end laps to be No. 14 by 1-1/4 self-drilling, self-tapping hex-head plated steel scew with 5/8 inch O.D. metal backed sealing washer. Spacing for end lap screws to be 3-1/4, 3-1/2, 3-1/2, 3-1/2, 3-1/2, 3-1/4 inch pattern. There is also one fastener located in each of the first diagonal sections of the trapzoid (8 fasteners per panel).
    4. Bearing Plate — No. 16 MSG gauge coated steel flat bearing plate. Used under panel clips (Item No. 2) over purlins and rigid insulation.
    5. Rigid Insulation — Foamed plastic, minimum 1 inch thickness, maximum thickness 6 inches. Butt joints to occur over purlins. Density to be a min. 2 pcf.
    6. Purlins — No. 16 MSG minimum thickness steel (minimum yield strength 40,000 psi) or min. "H" series open-web joists.
    7. Building Units* — (optional)—(not shown)-Translucent reinforced plastic panels. Nominal thickness 1/16 inch, formed to the same configuration as the metal roof deck panel pans, with reinforcement cut from classified metal roof deck panels (Item No. 1). Metal reinforcement attached to translucent reinforced plastic side segments with aluminum pop rivets. Panels continuous over two or more spans.

    NCI BUILDING SYSTEMS L P (View Classification) — "Light Transmitting Panel"

    8. Reinforcing Plate — No. 18 MSG minimum gauge coated steel, 6 inches wide two vertical legs on both sides and formed to the configuration of the metal roof deck panel (Item No. 1). Used at the mid-span purlin of building unit (Item No. 7).
    9. Liner Panel — (optional)-No. 29 MSG minimum thickness coated steel. Min. depth 9/16 inches with ribs spaced at 2.57 inches O.C. (Minimum Yield 80,000 psi).

    * 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 2013-07-01
TGKX.540 540 TGKX 266906001 CONSTRUCTION Active 20130701 20130702 650404001 640561001 157261001 266906001 100126200 901683001 139289001 518549001 100411252 771112001 160466001 100028941 266906001 100126200 901683001 901683001 901683001

Design/System/Construction/Assembly Usage Disclaimer

  • Authorities Having Jurisdiction should be consulted in all cases as to the particular requirements covering the installation and use of UL Certified products, equipment, system, devices, and materials.
  • Authorities Having Jurisdiction should be consulted before construction.
  • Fire resistance assemblies and products are developed by the design submitter and have been investigated by UL for compliance with applicable requirements. The published information cannot always address every construction nuance encountered in the field.
  • When field issues arise, it is recommended the first contact for assistance be the technical service staff provided by the product manufacturer noted for the design. Users of fire resistance assemblies are advised to consult the general Guide Information for each product category and each group of assemblies. The Guide Information includes specifics concerning alternate materials and alternate methods of construction.
  • Only products which bear UL's Mark are considered Certified.

The appearance of a company's name or product in this database does not in itself assure that products so identified have been manufactured under UL's Follow-Up Service. Only those products bearing the UL Mark should be considered to be Certified and covered under UL's Follow-Up Service. Always look for the Mark on the product.

UL permits the reproduction of the material contained in the Online Certification Directory subject to the following conditions: 1. The Guide Information, Assemblies, Constructions, Designs, Systems, and/or Certifications (files) must be presented in their entirety and in a non-misleading manner, without any manipulation of the data (or drawings). 2. The statement "Reprinted from the Online Certifications Directory with permission from UL" must appear adjacent to the extracted material. In addition, the reprinted material must include a copyright notice in the following format: "© 2019 UL LLC".