Aluminum vs Fiberglass siding

Thanks for everyone's input. I think I have decided on the one we are buying and it is new, not used. It is a 2013 front bath Forest River Stealth 23ft and just happens to have smooth siding. I could not pass it up for the price, $14k off retail.

I will never buy another aluminum sided trailer again as the only real benefit I can see are a slight weight savings. All other advantates go to Fiberglass IMO.

-Better insulated from cold/heat
-Better insulation from sound
-Less places for water intrusion
-More aerodynamic
-Easier to clean/wax
-Doesn't look like it came from a 1980s trailer partk...LOL

Should mention that most aluminum sides are made with wood framing while fiberglass uses aluminum studs. Both have advantages & disadvantages.

The smooth siding generally are more expensive to build than the Alum. sided...... Other than that it is mostly a looks thing...... I have Alum & very happy with it.....

Filon sidded trailers are not PRONE to delamination though it does sometimes happen. It's pretty rare and usually has a cause. Both types of siding have their advantages and disadvantages. Filon siding is very tough to damage (hail, tree branches etc) where as aluminum siding dents easily and a good hail storm will "do a number on it". Aluminum is lighter weight but creates more complex wind currents while towing. MOSTLY it's a cosmetic issue as most other things are pretty much "one from column a and one from column B)

after a hail storm, you will be glad you have fiberglass.
bumpy

Mostly looks, but also bit more insulation factor.