Any creative ways to mount solar panels to the roof with no/minimal holes in the roof?

[AGP noob]

Im going to mount some Fafco solar panel heaters to my roof. I'd really hate to drill holes into my roof (even if done correctly with roof sealant). Im thinking of alternative ways to mount it to the roof like using 2x4's tied to the solar panel headers. And/or drilling the mounting straps into 2x4s instead of the roof (and flipping the 2x4 over after this so that there will be no gap between the straps and solar panels). This would likely keep them secure just from the weight of the 2x4's but if there is a serious storm I may get nervous. But if a storm is big enough to move 2x4s i would think you could still get damage to the solar system either way.
Anyone else have any ideas or solutions that have worked for them?

 

[Pool_Medic]

There are numerous strapping methods you can use, if done properly you have zero damage being done. High winds can turn an 80 sq panel into one big kite. Do not gamble with safety.