Metal Sales Magna-Loc Installation - Manual (Page 30)

© Metal Sales Manufacturing Corporation / Subject to change without notice 6/12
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MAGNA-LOC
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.
6. Fasteners - (Screws) Fasteners used to attach panel clips (Item 2) to plywood substructure (Item 3A) or
plywood decking (Item 7) to be No. 10-12 pancake head, No. 2 Phillips drive, A-point, coated steel screw.
Fastener length to penetrate plywood min 1/2 in. Two fasteners per clip.
6A. Fasteners - (Screws) Fasteners used to attach panel clips (Item 2) through gypsum board, OSB or bearing
plate (Item 3, 3B, or 3C, respectively) and foam plastic insulation (Item 5) into plywood deck (Item 7) to be No.
10-12 pancake head, No. 2 Phillips drive, A-point, steel screw. Two screws used per clip.
Note: The panel clips may be fastened to the bearing plate using two No. 10-16 by 1 in. long self-driving,
self-tapping, pancake head No. 2 Phillips drive coated steel screws. The panel clip/bearing plate combination
is to be fastened to the plywood deck using two No. 12-13 No. 3 Phillips Drive coated steel truss head screws,
inserted through a guide hole in the clip and bearing plate and into the plywood deck.
6B. Fasteners - (Screws) (Not Shown) - Fasteners used to attach plywood Substructure (Item 3A) through rigid
insulation (Item 5) into plywood deck (Item 7) to be No. 14-13, No. 3 Phillips drive truss head screws. Fastener
length to penetrate plywood deck 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 3-21-24-24-21-3 in. pattern. All spacing
from board edges.
6C. Fasteners - (Screws) (Not Shown) - Fasteners used at end laps 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 1-1/2 in. long self-drilling, self-tapping, hex-washer-head, plated steel screws. Spacing
for 16 in. wide panels to be 1, 3, 4, 4, 3 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.
7. Plywood Deck Plywood decking to be graded per PS83 specifications, 19/32 in. thick, exposure 1, APA rated
sheathing, 40/20 in. OC, square edged. Butt ends not blocked.
8. Purlins - Deck Supports Spaced a max of 24 in. OC. Any of the following types may be used:
A. No. 22 MSG min thick coated steel. (33 ksi min yield strength.)
B. Graded dimension lumber, No. 2 or better.
8A. Plywood Fasteners (Not Shown) - Fasteners used to attach the plywood deck (Item 7) to the supports (Item
8) to be as follows:
a. For plywood-to-wood supports, No. 8-18 by 1-7/8 in. long bugle-head steel screws with a No. 2 Phillips
drive, a “Hi-Low” thread pattern and an “S-Point”.
b. As an alternate to Item a, No. 8d common deformed shank nails may be used.
c. For plywood-to-steel supports for a steel thickness less than No. 20 MSG, No. 7-19 by 1-1/4 in. long
bugle-head steel screws with a No. 2 Phillips head drive, a “Hi-Low” thread pattern and an “S-Point”. For
a steel thickness greater than No. 20 MSG to No. 16 MSG, No. 6-20 by 1-1/4 in. long in. long bugle-head
steel screws with a No. 2 Phillips drive and an S12 (Tek/3) point.
Spacing - For all fastener types to be 6 in. OC at the plywood edges and 12 in. OC in the interior.
Refer to general information, Roof Deck Construction, (Roofing Materials and System Directory) for items not
evaluated.
*Bearing the UL Classification Mark
Construction No. 506B
(cont.)
October 16, 2001
Uplift - Class 90
Fire Not Investigated
UL 580 WIND UPLIFT INFORMATION (CONT.)
MAGNA-LOC
Metal Roof Deck Panels
Metal Sales Manufacturing Corporation has obtained fire resistance ratings for various products conducted
according to test criteria set forth by 'Underwriters Laboratories' "Standard Fire Tests of Building Construction and
Material" (ANSI/UL 263). This test procedure is identical to ASTM E-119 and NFPA 251.
The fire resistance rating is for the total assembly and not just the external metal panel. Ratings are expressed in
hours and vary depending upon the assemblies.
In general, the test criteria is to evaluate the assembly's ability to continue to support the superimposed loads
and resist the passage of flame, high temperatures, or hot gases which will ignite combustible materials. The test
assemblies are identified by an alpha-numeric design number.
For detail information on specific assemblies and hourly ratings see UL Fire Resistance Directory.
UL 263 F
IRE
R
EsIstAncE
R
AtIngs MAGNA-LOC
Underwriters Laboratories Inc. ®
LISTED