Metal-sales Magna-Loc 180 User Manual download pdf (Page 9)

4. Vapor Barrier (Optional) - Single ply, used between the substructure (Items 3, 3A or 3B) and panel (Item 1). To be min 30 lb

roofing felt.

5. Foamed Plastic - (Rigid Insulation) (Optional) Max thickness 3-1/2 in. when gypsum board (Item 3), plywood (Item 3A)

or OSB (Item 3B) is used and 6 in. when bearing plates (Item 3C) are used. Min bearing strength to be 20 psi. 1.8 pcf min

density.

5A. Insulation (Optional) - Compressible blanket insulation 8 in. max thickness before compression. Used with sub-purlins

(Item 7) only.

6. Fasteners - (Screws) Fasteners used to attach panel clips (Item 2) to sub-purlins (Item 7) to be No. 1/4-14 by 1 in. long self-

drilling, self-tapping, hex-washer-head, plated steel screws. Two fasteners per clip.

Fasteners used at end lap of panel (Item 1) to be one of the following: No. 1/4-14 by 1 in. long, Type AB point self-drilling,

self-tapping, hex-washer-head, plated or stainless steel screws or No. 12-14 by 1-14 in. long self-drilling, self-tapping, hex-

washer-head, plated steel screws. Spacing for 12 in. wide panel to be 1, 3, 4, 4, 3, 1 in. pattern. Spacing for 16 in. wide panels

to be 1, 3, 4, 4, 3, 1 in. pattern; spacing for 18 in. wide panels to be 1-1/2, 3-1/2, 4, 4, 3-1/2, 1-1/2 in. pattern.

6A. Fasteners - (Screws) Fasteners used to attach panel clips (Item 2) through gypsum board, plywood, OSB, or bearing plate

(Item 3, 3A, 3B, or 3C, respectively) and foamed plastic (Item 5) into liner panel (Item 8) to be No. 12-13, No. 3 Phillips drive,

truss head, coated steel screws. Fastener length to penetrate liner panel min 1/2 in. Two fasteners per clip.

Note: The panel clips may be fastened directly to the bearing plate using two No. 10-16 by 1 in. long self-drilling, self-tap-

ping, pancake head No. 2 Phillips drive coated steel screws. The panel clip/bearing plate combination is to be fastened to the

liner panel using two No. 12-13 truss head screws described above, inserted through guide holes in the bearing plates and into

the liner panel. Min penetration 1/2 in.

6B. Fasteners - (Screws) (Not Shown) - Fasteners used to attach plywood Substructure (Item 3A) through rigid insulation (Item

5) to liner panel (Item 8) to be No. 14-13, No. 3 Phillips drive truss head screws. Fastener length to penetrate liner panel min

1/2 in. Total of 33 fasteners per 4 by 8 ft plywood sheet to be used. Fasteners located in five rows along the 4 ft length in

a 3-9-12-12-9-3 in. pattern. The two outer rows are in a 3-9-12-12-12-12-12-12-9-3 in. pattern and the three center rows are

in a 2-21-24-24-21-3 in. pattern. All spacing from board edges. Fasteners used to attach panel clips (Item 2) to plywood (when

plywood is fastened to liner panel as indicated above) to be No. 10-12 by 1 in. long pancake head wood screw with No. 2 Phil-

lips drive, or No. 10-12 by 1 in. long hex-head wood screw. Two fasteners per clip.

7. Sub-Purlin No. 16 MSG min thick coated steel (50 ksi min yield strength). Hat section, min 3/4 in. deep, 2 in. wide or Zee

section, 2 in. wide, flanges 2 in. deep. Max spacing between sub-purlins to be 48 in. OC.

Note: Screws used to attach sub-purlin to liner panel to be No. 12-13, No. 3 Phillips drive, truss head, coated steel. Max

fastener spacing to be 12 in. OC for Zee section with fasteners located in center of lower flange. For hat section, two screws,

spaced 24 in. OC, located at each side of channel to be used.

8. Liner Panel - (Steel Deck) No. 22 MSG min thick coated steel. Fabricated to various profiles (33 ksi min yield strength).

Steel deck depth and profile, support spacing (max 6 ft), method of positioning (end and side laps), and fastening of deck to

supports to be per deck manufacturer’s and local code requirements for uplift loading.

9. Liner Panel Supports - Purlins No. 16 MSG min thick steel (50 ksi min yield strength). Spacing to depend on design

considerations for uplift loading: max 6 ft, 0 in. OC.

Joists (Optional) - (Not Shown) - Open web steel joist having a min No. 16 MSG upper flange (50 ksi min yield strength) or

a min 1/8 in. thick upper flange ( 33 ksi min yield strength). Max spacing 6 ft, 0 in. OC. Refer to general information, Roof

Deck Construction, (Roofing Materials and System Directory) for items not evaluated.

*Bearing the UL Classification Mark

Construction No. 506A (cont.)

October 16, 2001

Uplift - Class 90

Fire Not Investigated

Underwriters Laboratories Inc. ®

LISTED

PML-9

MAGNA-LOC

800.406.7387 (Corporate Ofce) • www.metalsales.us.com

MAGNA-LOC

Ul 580 wind UPlifT inforMaTion (ConT.)

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Metal-sales Magna-Loc 180 User Manual Page 9

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