Slide out exterior

[Big_steve]

Newbie here...

Looked at a used (2010) trailer today. While the rest of the trailer interior and exterior shows zero signs of leaks, rot, dampness or delamination, the slide out concerns me. It's a large slide out, and it goes out over 3ft. If I push on the short front and back exterior walls, there is some give. I'm not sure how to describe it. It feels like a tiny empty space. Yet once you push a little it feels solid. Not like you're pushing against something rotting. The panels aren't bulging or bubbling. It seems like it was built this way. The slide out holds a couch and dinette. I could get my hand down the wall next to the couch, (but couldn't see much.) Nothing felt soft, damp, or smelled. I couldn't get my hand between the dinette bench and the other wall. No wet or rotting smells inside or out. The side (long wall) of the slide out doesn't feel this way.

What gives? Are they built this way, or is something going on in the slideout?

[camp-n-family]

Likely normal. Not all walls are laminated. The whole rear wall of my tt is as you describe.

[Big_steve]

goducks10 wrote:
We looked at a new KZ 1500 5er. The short walls on the ends of the slide were just floating.

Thanks. This trailer is a KZ. The top, outside edge and bottom were all held on by screws. It looked like the panel is meant to be removed by taking out the screws.

As I said, I'm a newby. If there is one thing I've learned here and from google is *RUN* from water damage.

[goducks10]

Thats normal on some brands. Not all slide outs are made the same.
Example. We looked at a new KZ 1500 5er. The short walls on the ends of the slide were just floating.
Our new ORV has bonded slides.
It's the same with front and back walls as well. Some rear walls are floating while others are bonded.
The front caps can either be a solid fiberglass cap, a bonded cap or a wrapped front cap where the cap material is just rolled over the framing and attached on the perimeter and where any exterior items come in contact with it.

[Big_steve]

drsteve wrote:
Is it the inside wall doing this, or the outside?

Exterior

[drsteve]

Is it the inside wall doing this, or the outside?