You may need to loosen the bolt and nut on the collar first.
How do you penetrate the roof for an antenna.
Use a trowel to spread the cement.
It ll help to have someone assist you on the ground to report the quality of reception with each change you make to the antenna.
Remove the pole base bolt and nut insert it through the hole in the base of the pole and finger tighten the nut.
Insert the pole though the tripod collar hole end down.
Drill pilot holes through the shingles and into the deck studs.
If you cannot cover the hole appropriately leave the base of the antenna attached to the roof so no hole is created.
Otherwise if you don t like that metal thing on top of your roof there are many.
You may want to check this with a spirit level.
After penetration through roof structure will not provide an adequate signal strength and quality to the antenna inside the roof.
Push the pole into a vertical position.
Consider communicating via a live video messaging app such as facetime with one person on the roof with the antenna and compass and the other person below near the tv doing the channel search.
Put a layer 1 8 14 thick of roof cement over the holes directly on the shingles and overlap that area approximately 1 2 1 larger than the bracket.
You can also buy non penetrating mounts that use weights rather than screws to hold them in place.