6
Installation - Joist-in
1
Preparing the shutter opening
□ Find a spot in the center of the hallway, drill a hole and
feed a wire through to mark it.
□ Mark space around the wire equal to the area of the rough
shutter opening in the table on page 5 in the joist-in option.
□ Remove all insulation above the installation site.
□ Align the shutter vein with the ceiling joist in the center of
the shutter opening.
□ Draw a line on the ceiling marking the rough opening size
of the shutter frame.
□ Double-check the accuracy of the dimensions you have
marked and ensure that all the corners are square.
TIP: Use the shutter as a template to outline the opening by drawing
the cutout line around the inside edges.
2
Cutting the shutter opening
□ Cut through the ceiling along the lines using a circular saw.
Measure the depth of the drywall and adjust the saw so
you only cut the drywall and avoid the joists.
□ Carefully remove the drywall from the opening.
NOTE: Make sure the exposed joist is centered.
3
Framing the shutter opening
□ Use lumber of the same dimensions as your ceiling joists
and fasten the boards to the edges of the frame opening
using #12D nails.
□ Fasten the sheetrock to the new frame using 1-1/2 in. ring
shank drywall nails.
□ Seal any gaps between headers and joists with caulk or
foam insulation.
4
Installing the facing
□ Use 2 X 6 boards to create a square with the inside
dimensions being the same distance as the shortest
dimension of the shutter rough opening (i.e., 26 in. for a
24-in. model, etc.).
□ Nail or screw in the facing to the framed opening.
TIP:
For a quieter fan, build a second box frame the same size as the fan
frame and install it between the frame and facing. Ensure that there is
still a minimum of 36 in. clearance between the fan blades and attic roof.
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