Solar panel came away on motorway,

[Northernraider]

Registration number I expect & it wouldn't be under the panel

It would if it was nicked and the theif wanted to hide it

 

[Jimbohorlicks]

It's weather resistant decking board. It gets checked every time I wash the van. Looks as good as when I did it. I built it in lockdown, when materials were difficult to get hold of.

The van will be getting a redesign some time, now that it's not just me but Hollie and the dog too. I'm thinking about treating the wood with some sort of rubbery, weather proofing paint or replacing. But its perfect still.

Have you considered the plastic / composite decking board as a replacement?
Probably lighter as well

 

[Crazylegs]

It’s the cheap crap plastic brackets that are the problem, they have a high oil content which results in a deteriorating grip to anything that is stuck to them. Use aluminium full length brackets, particularly if the panels are mounted near the front where the airflow gets underneath the panel.