Mounting the Mast on a Roof
2.Hold the mounting foot in a position so the center line is centered on a rafter.
3.Use a bubble level to make sure the center line is perfectly vertical.
Level on center line of template
Level
Not Level
Steps 2 & 3: Center the mounting on a rafter and make sure that it is level.
4.Use a pencil to mark the six holes in the mounting foot.
5.Remove the mounting foot and drill a 3/16" hole in the two center line locations you marked.
6.Drill four 3/16" holes in the four outside corner locations you marked.
7.Fill all six holes with a small amount of roof sealant.
8.Use a wrench to loosen the nuts on the mounting foot so you have easier access to the mounting holes.
9.Hold the mounting foot over the holes so the top part of the mast will rotate and point straight up.
10.Use two 5/16" x 3" lag screws in each of the center line holes to attach the mounting foot to the roof. Secure the four outside corner holes with four 1/4" x 2" lag screws. Securely tighten all six screws.
11.Seal the mounting foot with roof sealant. When applying the sealant, make sure you seal the areas shown in the figure below.
No
Yes
Step 9: Make sure the top part of the mast points straight up.
Sealant
Step 11: Seal the mounting foot to avoid water leakage.
12.Go on to the next section, “Final Installation,” to complete the installation process.
26 Mounting the Mast
