Are solar panels worth it with my roof and sloping direction?

[SteamyTea]

1 hour ago, Radian said:

I could say that you don't see many reports of modules causing problems - but then we've got rules in place making sure of that

I have been amazed about the lack of reports of modules coming off roofs.

They do have a second line of defence in that the cables should stop them hitting the ground.

 

I did see a ground mount system where just plain washers and nuts where used, thermal expansion and contraction and 'wind rattle' had loosened them.

The installer thought that someone had undone them in advance of stealing then.  But it wasn't.  He went back the next day with Nylocs.

Edited May 11, 2022 by SteamyTea

[Radian]

In 2016 Cross Safety UK carried a report of wind damage to a roof:

 

Quote

A reporter describes how during a heavy storm a big area of roof tiles that were adjacent to PV panels blew down.

The reporter suspects that the PV panels have caused local wind turbulence and caused loads in excess of the roof design load.

 

Interesting mix of in-roof and on-roof modules. Awful photo but it looks like the tiles to the ridge were poorly attached. We can only guess if the adjacent modules had a role to play. May have happened regardless of their presence.