Hung Walls ?

Bachus wrote:
We are thinking about a new Montana High Country. Keystone sent us the name of our local dealer, and he immediately tried to steer us to something by Forest River, because of the hung walls in the Montana. Here's what he said in his e-mail:

Yes the Crusader has the edge on construction over the High Country. All walls in the Crusader, including the slide-out sidewalls, are laminated. The High Country is what is known as a hung wall. To tell the difference push on the walls with your hands, the hung wall will move, the laminated one won’t budge even if you give it a thump. This tells you one thing, why the hung wall moves is because there is air behind it in front of the insulation and where there is air there will eventually be moisture and where moisture that cannot vapour off because it is trapped you inevitably get mould forming. The laminated wall is visibly stronger. In the High Country when we sold them both the rear wall and the slide-out sidewalls were all hung. On any RV you may look at in the future, check these walls. If hung, they will give quite easily.

Does he make a valid point, or is he just trying to sell his preferred line?

I have never seen a Montana with hung walls, mine certainly is not.
His explanation is somewhat misleading.
Yes laminated walls feel firm to the touch and in most cases can not be pushed in with your hand where a hung wall will have some give because it's hung on the wall studs which are 16" apart.
However, the hung wall in most cases and varies by the manufacturer will be stronger because the base frame and wall framing will be much stronger than a laminated wall.
Also when there is water intrusion on a laminated wall the water tends to sit in the wall where a hung wall will run down to the floor.
Both will have damage if not corrected.

Really none of this matters if you never have to repair a wall with delam damage because that is where the BIG differance is.
Repair/replaceing a hung wall is a lot less expensive than a laminated wall.