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.

 

[Paynewright]

I would never consider bonding a rigid panel direct to the roof and rely solely on the adhesive, I plan to use mechanical fixings to a roof bar frame.

In the UK an insecure load carries a fine and three penalty points on your driving licence as a minimum. So I definitely dont want it coming off nor injuring anyone.

I’ll make sure I use Bumax high tensile stainless bolts!

 

[Captain Quick]

When I was considering fitting a PV panel to my camper, I decided I wanted the low weight of a flexible panel but didn’t want to stick it directly to the pop-top and I certainly didn’t want to the weight of a rigid panel. The solution therefore seemed to be a hybrid approach of fitting a sandwich of a Renogy 200W flexible panel bonded to a twinwall polycarbonate sheet supported about 10mm above the roof by a frame of alloy channel and 3030 profile attached to longitudinal roof bars. Overall the height has only increased marginally and now has a total overall height of 2.030 m. This is the result…