Forum Discussion
Clay_L
Feb 16, 2015Explorer
The roof is a sandwich of 1/16 inch fiberglass, 1/8 inch luan plywood, styrofoam, 1/8 inch luan and ceiling covering material.It is all laminated together with contact cement. There are aluminum rails and studs embedded for the frame.
It sounds like something hit the roof hard enough to compress the foam. If the compression isn't too severe and the aluminum rail wasn't damaged and if the fiberglass isn't broken through I don't think I would be too concerned about it.
Here is across section showing the roof construction at the edge. The white area on the right is styrofoam.

It sounds like something hit the roof hard enough to compress the foam. If the compression isn't too severe and the aluminum rail wasn't damaged and if the fiberglass isn't broken through I don't think I would be too concerned about it.
Here is across section showing the roof construction at the edge. The white area on the right is styrofoam.

About Motorhome Group
38,764 PostsLatest Activity: Dec 25, 2025