What to clean the old tin can with?

[72 Excella500]

I live in Georgia and as most of you know its hot and humid in the summer. The problem I am having is the mold that grows on the outside of my coach especially the seams. If I had a regular fiberglass trailer I would mix up 3 to 1 water to bleach mixture and take care of it. However bleach is very corrosive to aluminum. I would appreciate any suggestions.

[Rog0525]

Vinegar and hydrogen peroxide are both effective mold killers but not corrosive like bleach.