UL PRODUCT CATEGORY

Assembly Usage Disclaimer

Roof Deck Constructions


See General Information for Roof Deck Constructions

Construction No. 508A

April 02, 2019

Uplift — Class 90

Fire Not Investigated

    1. Metal Roof Deck Panels* — (When used with nailable insulation) — No. 24 MSG min thick coated steel panels, 18 in., 16 in., 12 in. or 10 in. wide or 0.032 in. min thick aluminum, 16 in., 12 in. or 10 in. wide; 1-3/4 in. high at female side rib. Panels continuous over three or more clips with no end laps. A bead of sealant may be used at panel side joints.

    A & S BUILDING SYSTEMS L P (View Classification)"LokSeam"


    ACI BUILDING SYSTEMS INC (View Classification)"SnapLok"


    AMERICAN BUILDING COMPONENTS (View Classification)"LokSeam"


    ARCHITECTURAL METAL SOLUTIONS (View Classification)"Snap-Lock"


    BEACON SALES ACQUISITION INC, DBA COASTAL METAL SERVICE (View Classification)"EZ-LOC"


    BERRIDGE MFG CO (View Classification)"Snaplock Panel"


    BOBBY JAMES INC (View Classification)"BJI675"


    BORGA STEEL INC (View Classification)"Vertical Lock"


    CENTRAL STATES MFG INC (View Classification)"Central Snap"


    CENTRAL TEXAS METAL ROLLFORMING INC (View Classification)"Shurloc 175"


    CENTRIA, A DIVISION OF NCI GROUP, INC (View Classification)"SDP 175-12, -16, -18" (steel only)


    DREXEL METALS INC (View Classification)"DMC 175S"


    EAST TEXAS ARCHITECTURAL SHEETMETAL L L C, DBA ETAS INC (View Classification)"STRUCTURAL SNAP LOCK"


    FIRESTONE METAL PRODUCTS, A DIV OF FIRESTONE BUILDING PRODUCTS CO LLC (View Classification)"UC-14"


    GIDEON STEEL PANEL CO L L C (View Classification)"G175s"


    H&H METAL PRODUCTS INC (View Classification)"Uni-SnapLoc"


    HPM BUILDING SUPPLY (View Classification)"Sur-Lock"


    LAWMAN HEATING & COOLING INC (View Classification)"SS675"


    MASTERPIECE METALS (View Classification)"SS675"


    MBCI (View Classification)"LokSeam"


    MCELROY METAL MILL INC (View Classification)"Medallion-Lok"


    METAL FORMING INC (View Classification)"1.75 Snap Lock Steel Panel" or "1.75 Snap Lock Aluminum Panel"


    METAL ROOFING SYSTEMS INC (View Classification)"MRS System 2000"


    METAL SALES MANUFACTURING CORPORATION (View Classification)"Vertical Seam"


    METALLION INDUSTRIES INC (View Classification)"Clip Lock"


    NCI BUILDING SYSTEMS L P (View Classification)"LokSeam"


    NEW TECH MACHINERY CORP (View Classification)"SS 675"


    NORTHWEST ROOF TILE & METAL L L C (View Classification)"LT175"


    P S M L V INC DOING BUSINESS AS PENN SHEET METAL (View Classification)"PSM175SL"


    PETERSEN ALUMINUM CORP (View Classification)"Snap-Clad"


    PREMIUM PANELS INC (View Classification)"SS675"


    REEDS METALS OF BENTON (View Classification)"Secure-Seam"


    RLS METAL SYSTEMS INC (View Classification)"RLS 175S"


    RPR INC, DBA RAIN PROOF ROOFING (View Classification)"RP175"


    ROLLFAB METAL BUILDING PRODUCTS (View Classification)"SL-175", "1.75 Snap Lock Steel Panel", or "1.75 Snap Lock Aluminum Panel"


    ROOF WORKS FABRICATING L L C (View Classification)"Snap Lock 675"


    SHEET METAL WORKS OF ARIZONA (View Classification)"SL175"


    SHEFFIELD METALS INTERNATIONAL (View Classification)"SMI 1 3/4" SnapLock"


    STANDARD STRUCTURES INC (View Classification)"SnapSeam"


    STREAMLINE ROOFING & CONSTRUCTION INC (View Classification)"175SL"


    TAYLOR METAL INC, DBA TAYLOR METAL PRODUCTS (View Classification)"Versa Span"


    TREMCO INC"TremLock SL"


    UNION CORRUGATING CO (View Classification)"SL175"


    U S METALS L L C (View Classification)"US-175LS"


    V & R SHEET METAL LLC (View Classification)"SS675 Panel"


    VOGLER SHEET METAL COMPANY (View Classification)"VSM Snap-Tite"


    WESTAR ROOFING CORP (View Classification)"SL175"


    WHIRLWIND STEEL BUILDINGS INC (View Classification)"Weather Snap-12" or "Weather Snap-16"


    1A. Metal Roof Deck Panels* — (When used with structural cement fiber unit) — No. 24 MSG min thick coated steel panels, 18 in, 16 in, 12 in, or 10 in wide, 1-3/4 high at female side rib. Panels continuous over three or more clips. Endlaps for panels to be overlapped 6 in. A bead of sealant may be used at panel ends and side joints.

    AMERICAN BUILDING COMPONENTS (View Classification)"LokSeam"


    MBCI (View Classification)"LokSeam"


    MCELROY METAL MILL INC (View Classification)"Medallion-Lok"


    TREMCO INC"TremLock SL"


    NCI BUILDING SYSTEMS L P (View Classification)"LokSeam"


    2. Roof Deck Fasteners* — (Panel Clips) — One piece assembly, 3-1/2 in. wide, 1-7/8 in. high. No. 18 MSG min thick coated steel. Clips spaced 36 in. OC max for steel panels and 18 in. OC max for aluminum panels. Fastened to nailable insulation (Item 5).

    AMERICAN BUILDING COMPONENTS (View Classification)"LokSeam UL90 Clips"


    CENTRIA, A DIVISION OF NCI GROUP, INC (View Classification)"C175"


    EXCEL STAMPING & MFG INC (View Classification)"LS-178-18 Clip"


    LOGAN STAMPINGS INC"Snap Lock Clip No. 675"


    MCELROY METAL MILL INC (View Classification)"Medallion-Lok Clip"


    NCI BUILDING SYSTEMS L P (View Classification)"LokSeam UL90 Clips"


    PETERSEN ALUMINUM CORP (View Classification)"Snap-Clad Clip"


    2A. Roof Deck Fasteners* — (Panel Clips) — One piece assembly, 3-1/2 in. wide, 1-7/8 in. high. No. 18 MSG min thick coated steel. Clips spaced 36 in. OC max for steel panels. Fastened to structural cement-Fiber unit

    AMERICAN BUILDING COMPONENTS (View Classification)"LokSeam UL90 Clips"


    MCELROY METAL MILL INC (View Classification)"Medallion-Lok Clip"


    NCI BUILDING SYSTEMS L P (View Classification)"LokSeam UL90 Clips"


    2B. Roof Deck Fasteners* — (Panel Clips) — One piece assembly, 3-1/2 to 3-3/4 in. wide, 1-7/8 in. high. One panel clip located at each purlin intersection. Min thickness 0.048 in. (No. 18 MSG).

    METAL SALES MANUFACTURING CORPORATION (View Classification)"Vertical Seam Clip"


    3. Fasteners — (Screws) — Fasteners used to attach panel clip (Item 2) to nailable insulation (Item 5), or structural cement-fiber units (Items 5A or 5D) to be No. 10-12 by 1 in. long pancake head, No. 2 Phillips drive, A-point, coated steel screws. Min two fasteners per clip.
    4. Underlayment — Underlayment used over nailable insulation (Item 5) to be Type 30 organic felt. Sides overlapped min 2 in. End laps per manufacturer's instructions. Felt nailed to nailable insulation with 1 in. long galvanized steel roofing nails, located in side laps and between side lap per manufacturer's instructions. Nail spacing to be max 12 in. OC at the side lap and max 24 in. OC in interior rows.
    5. Nailable Insulation — Consisting of 1 in. min. to 3-1/2 in. max thick Classified polysisocyanurate foamed plastic with a factory laminated 7/16 in. thick APA rated O.S.B. Density of foamed plastic to be 2 pcf.
    5A. Structural Cement-Fiber Unit — (Substructure) — (Not Shown) (used in lieu of Nailable Insulation (Item 5) Consists of a minimum 5 in. thick composite structural cement-fiber units with foamed plastic core of a minimum 0.95 PCF density expanded polystyrene and 7/16 in OSB structural use panels on one face. All transverse butt joints are to occur over structural support. Unit will be designated as plank (tongue and groove) when used without truss tees (Item 5B). Unit will be designated as tile (rabbetted) when used with truss tees.

    TECTUM INC (View Classification)"Type E"


    5B. Truss Tee — (Optional) — (Not Shown) — Minimum size to be 5-6-17-2. Maximum spacing to be 48-1/4 in. OC. Tees to be welded to structural support (Item 6) with a 3/4 in. fillet weld on both sides of tee.
    5C. Tectum Grout — (Optional) — (Not Shown) — Used with truss tee (Item 5B) and tile (rabbetted) type substructure (Item 5A). Grout to fill void between substructure tiles around and above truss tee.
    5D. Structural Cement-Fiber Unit (Substructure) — (Not Shown) — (May be used in lieu of Item 5A) — Consists of a minimum 5 in. thick composite structural cement-fiber units with foamed plastic core of a minimum 1.5 PCF density expanded polystyrene 7/16 in OSB structural use panels on one face. All transverse butt joints are to occur over structural support. Unit will be designated as plank (tongue and groove) when used without truss tees (Item 5B). Unit will be designated as tile (rabbetted) when used with truss tees.

    TECTUM INC (View Classification)"Type III"


    6. Supports — (Purlins) — (Not Shown) — Purlins used for liner panel (Item 8) support to be cold formed steel sections. As alternatives, structural steel components (hot rolled beams, channels, open web joists, etc.) may be used. Min gauge and yield to depend on design considerations for uplift loading with max spacing to be 6 ft OC. As alternatives, structural steel components (hot rolled beams, channels, open web joists, etc.) may be used. Size and spacing of structural components to depend on design considerations.
    7. Fasteners — (Screws) — Fasteners used to attach nailable insulation (Item 5) to liner panel (Item 8) to be No. 11-13, No. 3 Phillips drive, truss head, painted steel screws. Length to depend on overall thickness of deck and to penetrate steel deck 1/2 in. min.

    A 2 in. diameter formed pressure plate fabricated from No. 22 MSG coated steel to be used with each screw. Fasteners located in three rows along the 8 ft length of the nailable insulation beginning 6 in. from the 8 ft edges with a row down the center and spaced 21 in. OC beginning 6 in. from the 4 ft edges. A total of 15 fasteners used for each 4 by 8 ft board.

    Fasteners used to attach Structural Cement Fiber Units (Items 5A or 5D) to structural support (Item 6) to be minimum 6 in. long, No. 14 screw with 5/8 in. diameter head. Fasteners are spaced a maximum of 12 in. OC at each joist along butt end. Pre-drilling with a 3/16 in. bit for steel up to 1/8 in. thick or with a 7/32 in. bit for steel greater than 1/8 in. thick when required.

    8. Liner Panel (Steel Deck) — (Optional when structural cement fiber units (Items 5A or 5B) are used) — No. 22 MSG min thick coated steel. Min depth 1-1/2 in., max pitch 6 in. fabricated to various profiles. Min yield strength 33,000 psi. Fastened to supports (Item 6) with fastener type and spacing per liner panel manufacturers instructions for uplift loading.
    9. Gypsum Board — (Optional) — (Not Shown) — Max thick 5/8 in. supplied in 4 by 8 ft sheets. Butt joints located over crests of metal roof deck panel (Item 1). Fastened to panel with same fasteners used for nailable insulation (Item 5).

    Refer to General Information, Roof Deck Construction (Roofing Materials and Systems Directory) 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 2019-04-02
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