Tar and gravel rooves and PV installation

Hi folks! As I understand it, Tar and gravel roof are sensitive. I am Putting a system on my Gravel roof.What is the best way to put a durable patch on the penetrations? seriously any help no matter how small will be appreciated! Thanks!

roofing.com/forum/about8148.html

The answer is in that thread.

Thanks, That is a great thread. It seams like a daunting task though.

It could be as simple as writing a check.