I came across this video on YouTube. It covers a repair to composite floors that FR occasionally uses on some of its units. It is a floor constructed with luan/foam/luan that many people find is problematic if you have water or excess moisture get into the flooring. Apparently the luan between the foam center and the vinyl flooring has trouble breathing and drying out. This can cause it to breakdown and rot.
My previous pop up had this type of floor. I am glad my new pop up has a standard plywood floor. I think plywood would be an easier fix.
Anyway. I wanted to share this with this community as it shows many great photo shots of the actual composite floor construction. Enjoy.