Magna-loc, Ul 580 wind uplift information (cont.) – Metal Sales Magna-Loc Installation User Manual

Page 27

MAGNA-LOC

1. Metal Roof Deck Panels* No. 24 MSG min coated steel. Max panel width 18 in.; min 12 in. Rib height 2 in. Panels

continuous over three or more clips (Item 2). The panel flat area may have optional striated or minor ribs placed at

various locations in the panel flat area beginning min of 2 in. from side ribs. The upper flange of the panel rib may

be horizontal, or optionally formed down to produce an angle of 0 to 90° between the vertical segment and the top

flange of the rib. Panel end lap 2 in. min. An end lap back-up plate (Item 2A) to be used at panel end lap. A bead

of sealant may be used at panel end lap and side ribs. Ribs to be seamed with an electric or hand seaming tool to

form a flange with a tight hem. Seaming process to include the upper portion of the panel clips (Item 2) .

METAL SALES MFG CORP - “Magna-Loc 16”, “Magna-Loc 18”

2. Roof Deck Fasteners* - (Panel Clips) Located at side of panels (Item 1) over substructure (Item 3, 3A, 3B or 3C)

and fastened through substructure to liner panel (Item 8) with max spacing of 48 in. OC or over sub-purlins (Item

7) with max spacing of 48 in. OC; or when panel clips are fastened directly to plywood (Item 3B) as described in

Item 6B, max spacing to be 36 in. OC.

Fixed Clip (Not Shown) - One piece assembly fabricated from No. 22 MSG min thick steel, 3-1/2 in.

wide.

Floating Clip Two piece assembly with a base fabricated from No. 16 MSG min thick steel, 2 in. wide

and a tab fabricated from No. 22 MSG min thick steel, 4-1/4 in. wide.

2A. End Lap Back-Up Plate (Not Shown) - No. 16 MSG min thick coated steel channel, 3 in. wide with two 3/8 in.

deep legs. Max length 74 in. Located under the panel (Item 1) end lap (50 ksi min yeild strength).

2B. End Lap Back-Up-Plate (Optional) (Not Shown) - No. 16 MSG min thick coated steel. Width 11, 13 or 19 in.,

length 7 in. Two 3/4 in. by 3/4 in. tabs and a 1 in. deep vertical leg located at up-slope edge of panel (50 ksi min

yield strength).

2C. Roof Deck Fasteners*(Cinch Plate)-(Optional)-(Not Shown) width 1-15/16 in., length 18 in. max. Fabricated from

No. 20 MSG min thick stainless steel. Located over end lap.

3. Substructure - (Gypsum Board) (Optional) - Min thick 1/2 in. To be placed on top of either the liner panel (Item

8) or rigid insulation (Item 5). Combined thickness of the gypsum board and rigid insulation not to exceed 4 in. All

joints to be taped with 2.5 in. wide joint tape.

3A. Substructure - (Plywood) (Optional) - (Not Shown) - Plywood decking, used in lieu of gypsum board (Item 3), to

be nom 1/2 in. thick, exposure 1 sheathing, 40/20, CD. Located over rigid insulation (Item 5). Combined thickness

of the plywood and rigid insulation not to exceed 4 in.

3B. Substructure - (OSB) (Optional) - (Not Shown) - OSB decking, used in lieu of gypsum board (Item 3), to be nom

1/2 in. thick. Located over rigid insulation (Item 5). Combined thickness of the OSB and rigid insulation not to

exceed 4 in.

3C. Substructure - (Bearing Plate) (Optional) - Bearing plate to be used in lieu of gypsum board (Item 3) to be 4 by

4 in. by No. 18 MSG min thick coated steel (33 ksi min yield strength). Used under each clip (Item 2) over rigid

insulation (Item 5) only when rigid insulation is located directly under panel (Item 1).

Construction No. 506A

October 16, 2001

Uplift - Class 90

Fire Not Investigated

UL 580 WIND UPLIFT INFORMATION (CONT.)

MAGNA-LOC

See Item 2