I was just getting into bed when two blokes clambered down through the loft-hatch. It seems they were "just proceeding by my house and couldn't help noticing that one of the rails fitted for the purpose of securing the array of panels appeared to be protruding past the edge of the aforementioned panel array at least 1/4 inch further than the other rails."
They said that as there were no lights on in the house, and not wanting to knock the door and wake us up and panic us with this , they thought that it would be easier to pop up and have an accurate measure-up.Apparently that all went off ok, and they simply noted their findings by torchlight and were about to call it a night when one of them remembered seeing something lately on a forum about surveying the loft as well. It seems that, in the dark, they had a bit of a game removing enough slates to effect an entry but with perseverance (and by removing a good few of the panels) they finally managed to gain access.They said that, thankfully, all was well in the loft re the wiring and inverter etc,and bade me Goodnight before leaving the way they came. I don't think i would have spotted this myself. Glad someone is keeping an eye out. RESULT