Not sure where else you may be able to use it but you only needs a piece of about 6 x 8.
Install antenna on the roof.
Mount the antenna wall installations.
It s easy to set up there.
You use wall mount brackets to hold the mast in place.
Make sure the area where you are installing the j pole is dry and clear from debris.
You can also buy non penetrating mounts that use weights rather than screws to hold them in place.
In order to mount an antenna on your roof without damaging it you should attach the antenna to the gable the fascia or the chimney.
Once you connect the control unit box a port on the box named ant to your antenna with a cable you should see the red light is on your antenna main unit.
Whatever you do do not put holes in your roof to attach your antenna.
Use 6 waterproofing membrane before you install the j mount on the roof the length of the membrane roll in the link provided above is 75 feet.