vapor barrier in a fish houses a good idea

[wheelerboy920]

Me and my dad are remodling a 6.5 x 12 king krow wheel house and were thinking of putting in a layer of plastic to prevent mosture dose anybodie think it a good or bad idea.

[gusdawgg01]

Wheeler, what kind of insulation do you use ? I personally wouldnt use the plastic because that will cause moisture problems. You might want to use 2inch foam and foam spray instead . The foam works as a thermo barrier, think of it as a to-go coffee cup. You put ice cold water in it, it doesnt sweat. Same thing with boilin hot water, cold on the outside nice and warm on the inside, and no moisture build up. The high dollar would be spent in using foam, probably 20+ bucks per sheet, but money well spent. Hope it helps you out..

[Rick G]

If you are useing a vented heate I wouldnt worrie to much about the condensation. On the other hand if you are running a ventless I would highly recomend a good vapor barrier.

[eyebjim]

I don't think you need a vapor barrier. The vapor will come from your breath on the inside and from your heater if it is not vented. If anything you want the vapor to be able to escape. I have a vented heater in a king crow and I do get a little condensation on the walls particularly by the corners. It usually stays at about 50-60% RH inside but with the walls being a little cooler than the rest of the inside it condensates some on the walls.

[dillon]

If you put in a vapor barrier, make sure that you have a good source of fresh air. Two people in a house with a heater running will burn up the oxygen very quickly.

[Tom7227]

A vapor barrier is probably a waste of money cause you really aren't going to be using it enough for that to be an issue. More likely than not you're going to have too much moisture inside from ice melting, people, heater or other propane stuff etc.

[Boss Hogg]

Remember, you do need fresh air. You could be building your own coffin.

[youngie22]

venting your roof will help, just like on your house... has any one noticed any big neggatives on doing this to a shack that gets heavy use in extremes?

[Sandmannd]

Remember, you do need fresh air. You could be building your own coffin.

This is the biggest point. Make sure you have vents if you are going to do it. But as others have said, I don't see a real value in it.

[516]

Thanks for all the info it helped greatly.

[hunter101]

if you spray foam or use styrofoam you probably wont need a vapor barrier. those types of insulation will keep the drafts out. but as others have said, VENTILATION!

[Jim Cramer]

I agree totally, I have had several fish houses over the years and moisture is always a problem. If anything do what ever it takes to get rid of the excess moistue.