I can see the disadvantages to the aluminum floor, but it will never rot !
Daisy ( not breathing anymore smoke in Campo CA)
> I have an advertising brochure for my '78 argosy that touts it's light
> weight and thus saves gas while towing and can be towed with smaller cars.
>
> My Argosy has one of the test features that was not adopted by Airstream -
> The floor is aluminum. Actually is is two aluminum plates with 1" of
> Styrofoam sandwiched between them.
>
> This turned out to be not such a great idea. The floor sags a bit and flexes
> when you walk on it. It can also sweat at times. You also have 1" "ribs"
> that cover the joints between the floor plates so the floor isn't smooth and
> limits floor covering options.
>
> Dave