Directly attach aliminium panels to inner frame

[YuGun]

I think about attach aliminium or steel 1mm panels to directly inner frame. How can ı do that?
Ä°s there any design done like this?

How can ı attach them to inner pine frame. I dont want to use plywood panels? How can ı do that?

And ı want to know the scottish aliminium sided teardrops, how you can attach panels? Sometype glued?

Thanks.

[Shadow Catcher]

Two possibilities I can think of screws or 3M VHB tape, IF you seal the wood. It is used to hold the sides of truck bodies on.

[planovet]

Another possibility is to not attach it at all. Float it just like you would if it were over plywood.