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Step 3 continued....
BO13
3 Attaching
It is important that the rear roof channel be securely anchored to a sound and at mount-
ing surface. A special mounting board (2x4,2x6)x9' 11 1/8" (38 mm x 89 mm, 38 mm x 140 mm) x 302,6 cm
can be used if existing surface is questionable or on mobile homes. The mounting board should be attached
with wood screws drilled into the wall studs on frame construction. Masonary anchors should be used on
brick or masonary installations. Also on frame construction, if stud or rafter spacing is greater than 16" (40,6
cm) on center, use the mounting board. Countersink all fasteners.
Option 1 Attachment to Stud or Rafter
rear roof channel level on wall, drill a 3/16" (5 mm) hole, 1" (2,5 cm) from top ange, through rear roof chan-
nel's web and wall at every stud or rafter. Make sure there is a hole on each end of channel. Remove rear
roof channel from wall and enlarge holes in rear roof channel with a 7/16" drill bit. This hole will enable the
fastener to pass through the rear roof channel. Align holes in wall with holes in rear roof channel. Attach
rear roof channel to wall with 3/8"x2 1/2" (10 mm x 6,4 cm) screws and washers, provided your local code
permits the use of this screw. Note: If a special mounting board was used, holes are provided in rear roof
Option 2 Attachment to Brick or Masonary
locally) 12" (30,5 cm) on center. Level rear roof channel on wall, using holes in rear roof channel as a guide,
drill holes in wall at the center and each end of channel with proper size masonary bit ( do not drill holes in
mortar joints). Attach rear roof channel to wall with masonary anchors. Repeat procedure for remaining holes
in rear roof channel. Note: If a special mounting board was used, holes are provided in rear roof channel for
attaching to wall.
Attach at each stud
Countersink Screws
Weather Seal
3/8" x 2 1/2" (10 mm x 6,4 cm)
Lag Screw & Washer
into Wall Stud
Weather Seal
Masonary Anchor
Note: Poke a hole through weather seal
using an awl before drilling or fastening.
Locate studs or rafters in mounting wall. With
Attach at each stud
Use masonary fasteners (purchased
13
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