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Purplerules
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# Posted: 15 Jul 2014 22:36
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Our bathroom is under the loft. And we have left the ceiling in the bathroom the smooth cedar wood of the loft.
Got to thinking that when we put shower in how do we stop the steam/mositure from rising up to the loft. We do not plan to sheetrock unless that is the solution.
Any ideas??
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bldginsp
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# Posted: 16 Jul 2014 09:07 - Edited by: bldginsp
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The big advantage to sheetrock, of course, is that once it is taped it creates an air barrier to reduce (not prevent) moisture transmission. Cedar or other boards won't do this and will themselves absorb moisture and show degradation after a while.
I plan to use Dens shield gypsum board throughout my cabin. It is a waterproof gyp board faced with fiberglass, not paper, and can be used under tile in shower walls. I'm concerned about shower moisture like you are, but also, in a cabin that is unconditioned most of the year, there will be moisture in spring and fall from rain and humidity. Regular paper faced sheetrock can suffer from such moisture in unheated, unconditioned spaces left alone with little or no internal ventilation for months.
It pays to go the extra effort when dealing with moisture in buildings.
Will you have enough electricity for a fan in the bathroom?
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Purplerules
Member
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# Posted: 17 Jul 2014 20:13
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Thanks bldginsp
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Purplerules
Member
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# Posted: 22 Jul 2014 21:08
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Still would like your suggestions or ideas.
Anyone else put their bathroom under the loft with a shower?
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skootamattaschmidty
Member
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# Posted: 23 Jul 2014 06:42
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My shower is under the loft at the back of the cabin. The ceiling is 1x5 pine boards over the log rafters. We have a window in the bathroom that is usually open during the summer months that helps remove some moisture. The extra moisture has not been an issue for us in the loft.
If you don't have a window you could always install an exhaust fan to help remove the steam.
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turkeyhunter
Member
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# Posted: 25 Jul 2014 07:53
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my bathroom is under the loft...my shower is 48 inch fiberglass unit with 2 seats in it. Bathroom is 8' x 10'..t&g knotty pine boards on wall.
have not done the ceiling yet. Had no problems with moisture. I open the window maybe in early fall while in there. But never in summer ( ac is on) ...No issuers.
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SteveF
Member
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# Posted: 9 Aug 2014 09:11 - Edited by: SteveF
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I just finished my bathroom in my cabin and posted pictures and details of exactly how I did it. I have the same set-up as you and did a lot of research on this topic prior to proceeding.
Make sure that you first use a 6mil vapour barrier over the ceiling rafters or else the moisture will simply move through the gaps in your cedar leading to mould and rot. Because I used pine I bought pre-finished easy-pine that is sealed on both sides but you could easily do yourself or bring to a company that will finish the boards for you. If you seal on only one side the pine will warp over time. Install a ceiling fan!!! ... steam will accumulate on the ceiling and although a window helps it is not at ceiling level and therefore can't remove the condensation trapped higher.
Over the shower I used 1/4" Dense Armor taped at the seam with mesh and not paper and then applied two coats of Arcylic Kitchen/Bath paint. Around the perimeter seam I caulked with GE white silicone. What was not over the tub/shower was pine T&G.
My posts:
http://www.small-cabin.com/forum/6_4565_0.html
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Purplerules
Member
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# Posted: 17 Aug 2014 22:39
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Thanks SteveF for the info and the link to your build. The pictures gives us ideas on how to possible make it work. Your place is beautiful.
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Purplerules
Member
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# Posted: 17 Aug 2014 22:55
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This is a picture of the shower ceiling, which the loft is right above. This is the back right corner of cabin. Will we need to put something over the wood and if so what. We really wanted the cedar to be seen.
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Cisco
Member
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# Posted: 27 Oct 2014 22:18
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Just wanting to shoot this topic back up. I am preparing to install my shower and I am trying to decide how to handle the moisture
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hueyjazz
Member
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# Posted: 28 Oct 2014 11:58
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Bathroom fan with light and a heater is a god send in my book.
Controls moisture and take the nip out of the air when wood stove hasn't kicked all the way in during the winter.
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