I have a '02 Coleman Caravan 25' that I recently purchased knowing it had soft spots in the floor. The water leak in the roof has been fixed. Now to fix the floor, I have cut two core samples with a hole saw in the floor in cabinets to see how the floor is constructed. The floor is a sandwiched type construction consisting of the inside vinyl floor covering, 3/8" untreated plywood, 1-1/2" of white styrofoam, another layer of 3/8 or 1/4" plywood, then some type of light grey vapor barrier (?) on the bottom exposed to the exterior elements. The 'sandwich' is still wet where I cut the holes and needs to go! I know the walls are set on the floor during the trailer's construction so I will have to deal with that too. My inclination at this point is to completely remove the existing floor 'system' in the entire trailer and replace it with treated wood etc. starting at the front and work my way back one section at a time.
My question is what are my options to fill this void of approx. 2-1/4" in my floor?
Do all trailers have some form of insulation like this one does? Is it needed? I am in Missouri where it gets cold in winter and I plan to use it for hunting trips in winter.
What are other methods of floor construction when TT's are built at factory?
How would you proceed if it was yours?
What are my options guys? The amount of knowledge on this forum is great. Thanks, Jeff