Lantley wrote:
Gdetrailer wrote:
For the record.. The SUBFLOOR thickness and type of material IS the problem, not the construction method.
Yes, some manufacturers skimp on the subfloor thickness and type of material on some models and that IS the problem.
It's not simply a subfloor problem. Simply replacing plywood is doable.
However it's replacing the sandwich...multiple layers that complicate the repair.
Nope, wrong you are.
Here is a illustration of the "sandwich floor".

Click For Full-Size Image.
That is taken from my 1984 brochure.
Please kindly note the critical area that the red arrow is pointing to.
That is the subfloor and that IS where the problem begins at.