Originally Posted by bluejunior
I keep wondering how that doesn't bend the gutter down. It's still just sheet metal.
I'm not a structural engineer, but it looks like the horizontal metal that it sits
on is double-thickness, brazed or welded together. With eight support points,
the load is widely distributed. The rack is very rigid, so the load doesn't
bounce up and down on any one place.
After six or seven years the original green gutter moldings got bent up, but that
was mostly due to the original clamps which were not so well-fitting as the
ones on there now. The horizontal surface the rack rests on never really was
I got rust mostly on the underside of the horizontal surface, not on the top.
The welder patched in sheet metal on the underside, painted it, then attached
the black gutter moldings.