Forum Title: Bathroom Built Underneath Poured Concrete Staircase
Hello Everyone, This is my first post, so I apologize if I'm not familiar with the proper way to ask quesions....... BTW...we are in Montreal, so winter, freezing, hot summers...all a factor here.... My client has a bathroom (toilet, vanity and shower) that was built underneath a poured cement staircase (like a cold room). The room is about 6'x7', with a slanted ceiling about 1/3 of the celing. It smelled musty and I was sure there was mold everywhere.....I was right! The way they built this room is as follows; - all of the walls are concrete (the foundation actually, and the poured staircase) - they framed the walls using regular lumber (not too much damage there) - they poured the stairs over what looks to be 2x6 boards (which actually make the ceiling in the room) - the ceiling was soaking wet, and most of the 2x4 beams (used as rafters) had rotted away - only two of the walls had insulation (the one without had no moisture, but the wall with the shower plumbing was full of black mold (yes, I did wear proper protective clothing/equipment) - I'm pretty sure most of the water damage came from trapped moisture created by the fact that the ceiling in this room is wood and above that a poured concrete staircase So now the big questions: 1) Before I put the ceiling back, is there anything I should do to seal or waterproof the ceiling? 2) Instead of fiberglass insulation in the ceiling, should I use a HD foam? (this would be applied to the 2x6 beams that form the ceiling) 3) Anything else I should do/consider? Any advice would be greatly appreciated! John
Category: General Contractor Post By: JAIME RAMSEY (Downers Grove, IL), 03/07/2018

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