So, does Linda have a tree that might fall on my roof (remind me never to get near that tree). Linda, thanks, I never thought of trees, but there are a lot of huge ones where I live, lots of big dead branches too high to cut off. As far as a low overhead problem it's possible around here, lots of old overhead rail tracks. But I was mainly thinking of stress from whatever is on the roof, vibration from just going down the road, and maybe just being paranoid about ruining such a nice roof. I suppose I should worry about this AFTER I find a good Sunseeker.; Thanks-