How to control/eliminate cabin condensation ?

Joined
Sep 9, 2013
Messages
27
I am getting a considerable amount of condensation on sides and under the front deck on aluminum surfaces inside my 22 Chieftain cabin. What are the rest of you guys doing to stop it? I was thinking about block foam insulation under the deck between the wood parts and possibly some small furring strips on the cabin sides looks like one inch and more foam insulation and cover it all with marine carpet. Any better ideas ? This would give me some additional flotation as well.
Oh and while I am at it you guys are prophets. I thought no problems with my barn find other than dirt. Well this condensation over the years has rotted out some of the cabin floor mainly on the port side and a little bit of the cabin bulkhead near the floor in that area. So gonna rip some of it out and replace all the vinyl in the floor and any wood that is suspect. On a bright note transom and hull is intact and lovely.
 

barato2

Commander
Joined
Dec 7, 2010
Messages
2,956
Re: How to control/eliminate cabin condensation ?

"estimated prophet" naah, we've just all seen too many boats that looked good (or so we told the Admiral, keeping our doubts to ourselves....) and ended up needing woodwork. if you have rot in the cabin, i'd also look at possible roof leakage. i doubt condensation would be enough moisture to rot wood.

what i did on my tin camper shell was to superclean the inside of the hull and then spray it with 3M spray glue("super 77" or whatever it's current incarnation is), then stuck Reflectix to it...this is basically bubble wrap faced on both sides with Mylar, and it's flexible enough that it follows curves and seems to stay put even when the aluminum flexes (like when i'm loading the boat on top of shell). adds no weight and is maybe R-5.
 
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