4A. Fasten Single Angle Irons To Roof Structure - BIG ASS FANS powerfoil x2.0 Installation Manual

4a. Fasten single angle irons to roof structure

If the angle iron span is greater than 8 ft (2.4 m) and requires double angle irons, proceed to step 4b.
Fasten the angle irons to the roof structure mounting points at each end with customer-supplied hardware as shown. Do not tighten the
hardware until the upper yoke has been mounted to the angle irons (step 5). Big Ass Fans recommends orienting the angle irons so
that the horizontal legs are facing each other (vertical legs are on the outside).
Proceed to step 5.
Grade 8 Hardware (Customer-Supplied):
a. (4) 1/2-13 Bolt
b. (8) 1/2" Washer
c. (4) 3" Square Washer (BAF-Supplied; see diagram)
d. (4) 1/2" Nylock Nut
Note: Ensure the angle irons are oriented as shown.
8'–24' POWERFOIL X2.0 WASHDOWN & POWERFOIL
®
Mounting Structure: Bar Joists (cont.)
a
b
c
b
d
Vertical walls are
to the outside.
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X2.0 PLUS WASHDOWN
®
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Square Washer
3"
(7.6 cm)
Ø 9/16"
(1.4 cm)
(7.6 cm)
Thickness:
1/4" (6 mm)
15
3"