I've already given the manufacturers fitting requirements in my earlier post. If you need any more info PM me.
The response from the guy is poor, but not unduly suprising, I think it rather represents the attitude of the company.
Saying the cables are hard to tie up is BS of the highest order, couldn't be bothered more like. We hold the panel at an angle and send some one under to secure the cable, simples. when I have noticed one has been missed on occasion I have reached under the panel to secure it, simples. All it requires is someone that actually cares about what they are doing, which it would appear he doesn't.
One of the northern installers on here may be able to help you out with the wind calcs as they may already have some but I don't think you have enough brackets. If the rafters can't take the number of brackets needed to secure the array then they need to reinfore the rafters, simples.
The problem is, by the time a problem develops, if it does, this company may be long gone. Have you got an independant insurance warranty?
