Try to make sure that the center of the membrane is close to the center of rafter.
How to install hd antenna on roof.
Run the coaxial cable.
Our handy guide will walk.
Antenna of your choice.
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.
To install this membrane on the roof you just need to peel off the protector and stick the membrane on the roof where there is rafter.
Once you find the ideal position for the hd antenna secure the antenna in place on the pole by tightening the sleeve bolts and disconnect the temporary cable from the hdtv.
The membrane is self adhesive.
Whatever you do do not put holes in your roof to attach your antenna.
75 ohm to 300 ohm transformer should come with new antenna mounting kit braces u bolts etc mast antenna must be 10 feet 3 04 meters above roof you will need a 12 feet 3 66 meters mast or two 6 feet 1 83 meters masts if you add a rotator.
You can also buy non penetrating mounts that use weights rather than screws to hold them in place.
Installing antenna outside makes a big difference.