Condensation inside aluminum hull a problem?

[tony_cliffy]

I have a 20' center console aluminum welded boat with a floor and front/rear decks. I am noticing lots of condensation up under the decks when I open one of my hatches (to get at batteries or stowed gear). The hatches are far from waterproof but probably keep a vapor barrier enough that mosture collects and lots of condensation forms. It is helping non-stainless steel components corrode such as parts on my water separator, etc. I'm wondering if this is something to avoid and if fiberglass hulls do the same thing?

 

[crazy charlie]

Re: Condensation inside aluminum hull a problem?

You should find a way to vent and let the moisture out.When it comes to moisture"less is better".I get moisture build up in the lower section of my Mako but it is a sealed section of the boat so I expect it.I open the inspection port when I know rain is not in the forcast.Charlie