Solar fail, time for an upgrade

[DXX]

If fixed properly

That’s the deciding factor, people have their super expensive polish and that creates a barrier between the paint and the adhesive.

 

[FWhite]

If fixed properly no more risk than a roof tent, roof box, bike, wind out awning etc all of which create more drag than a flat roof panel.

I respect your opinion and your willing to risk, and agai, I could be fully wrong. But I am afraid you misunderstood me.
Please let me try again.
I am NOT discussing about drag, quite the opposite when you speak about a wing. I am speaking about *lift*.
A force directed upwards, against gravity, that is less obvious to understand than drag.
Especially in the case of a flat wing, the explanation is not so straightforward.
I suspect that most of the DIY-installed solar panels tearing away (flexi, semi-flexi or rigid) depart just because of that, a lift in the order of hundreds of kg.
Just the rigid ones pose obviously a bigger damage risk.