Hello,Just reading this thread as I prepare to fit a solar panel to my Basestation. With the benefit of hindsight, would you mount the panels the same way?
Trying to locate the timber supports in the roof, I suspect that I might be able to locate the panel with a beam at the front edge but unlikely at the rear so will need to use rivets instead, both with Sika and aluminium angle brackets like you fabricated.
If I was to fit another panel I would mount it the same way. Roof has not leaked and solar panel has not moved or come loose.
You could also pick up the front roof beam for the front brackets and the fit a bracket either side towards the rear of the panel and pick up a beam also. That way you could just use screw and sika and would not need the riverts