Replacing flooring and supports + AC help?

[transparentChaos]

Hello!
We recently purchased a 2006 Forest River Rockwood Model 8314SS.
It’s in very good condition, however the floor is very squishy all over, you can feel where there’s beams and where there isn’t. We were told by previous owners that there’s no mold or rot (which we confirmed, there’s no rot), but the owners before them had incorrectly installed support for the floor. I’m aware this probably makes little sense, i’m very new to all this and was kinda thrown into living in this thing very quickly. I just want a solid floor.
Another thing! Is there a way to make the AC more effective, perhaps additional units in the ceiling? There’s slots where vents/fans should be but they’re all covered or nonfunctional at the moment. For context we work nights in FL and this thing is uncomfortably hot when we’re trying to sleep.
Advice? Tips? Help?
Thanks.

[Oaklevel]

If the trailer is 30A adding another AC will be problematic. (Not impossible though).

The floor issue could be a major undertaking. Why would a previous owner add support to the floor unless there was an issue. That's a new one. The most common reason for a floor to become soft is water.

Others will probably be along to help.

[5picker]

Many Rockwood/Flagstaff models had composite floors. They were made with two thin sheets of Luan with foam sandwiched between them. They were known to have issues (from the foam compressing) and often to help with the lack of stiffness, supports were added.

We have no clue what your floor construction is or what might have been done by previous owners. We need more information and photos to properly guide you

[FlagstaffBen]

Originally Posted by 5picker

Many Rockwood/Flagstaff models had composite floors. They were made with two thin sheets of Luan with foam sandwiched between them. They were known to have issues (from the foam compressing) and often to help with the lack of stiffness, supports were added.

We have no clue what your floor construction is or what might have been done by previous owners. We need more information and photos to properly guide you

A 2006 had the composite floor you mention, and that was early in the evolution of those floors which came on the scene in the late 90's/early 00's. Over time they became better at them, but never perfect, by adding more aluminum tubes closer together. Finally Rockwood gave up on them @ 2017/2018. If the rig gets a lot of use or the people using it are heavy they fail faster, and usually fail first in high traffic areas, in front of doors and sinks etc.