Itasca Class C Overhang Movement

pnichols wrote:
I'm beginning to believe more and more that leaking forward facing clearance lights may be causing a lot of the cabover wall/floor rotting that folks are seeing, which can affect all cabover designs - one piece fiberglass included.

You are absolutely correct on this point. Marker lights leak very often. It is unfortunate that the manufactures of those lights don't offer a better product. Some come with gaskets that either are not installed with care or don't last. The manufacture of our rig caulks around each marker light to assure no water gets inside.