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mkjeld 04-19-2011 04:51 AM

Vapor barrier on slanted bath ceiling with tile & skylight
The bath we are enlarging has a slanted ceiling on one end of the room. The bathtub sits in an alcove below this ceiling area. We are putting in a skylight over the tub (30 x 30). I ordered a deck mounted skylight since the ceiling is slanted. This is a 100 year old farmhouse. The slanted part of the ceiling is lathe and plaster - pulled down the plaster where the skylight will be. I'm thinking I should take down all that plaster since it is so old and put up tile backer board and tile the ceiling same as around the tub. Should I put a poly vapor barrier on this ceiling? I bought the strongest exhaust fan I could find for this room. There is no heat vent in this room so we put in a heated tile floor for heating. That is why we wanted the skylight, to open for ventilation in summer since there is no cental air or window in the room. Is tile okay or any better ideas on how to finish the ceiling other than tile? The rest of the room has high ceilings with new flat finished drywall (no texture).


Ron6519 04-19-2011 08:31 AM

Is this bath alcove have an isolated ceiling area where it traps the moisture? Like a drop down header structure?
Is this a bath and shower combination or just a tub area?
Post some photos of the area.

mkjeld 04-20-2011 12:26 AM

I'm not sure exactly what a drop down header structure is, but I don't think this is one. The slant is the actual slant (angle) of the outside roof line. The outside roof is directly above the lathe, no attic above this area. We put in a bathtub with shower. I'll try to post pictures if I can get my camera back from a relative who borrowed it.

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