Hello everyone,
In our new build (moved in November 2020), we have noticed that the ceiling in the bathroom is damp in the middle. Yesterday, the builder sent someone to remove the drywall at that spot. Water had accumulated under the vapor barrier and soaked the drywall. Unfortunately, I have no idea how the moisture got there. The area above the vapor barrier was completely dry. Is it possible that moisture from showering could get in through recessed ceiling lights if there is a small gap, or how else could this happen?
Second issue:
After opening the ceiling, it was noticed that the ventilation pipe was not insulated, which caused a lot of condensation moisture to form on the breathable membrane in the cold roof area. The drywall installer is coming today to insulate the pipe and redo the ceiling at that spot. However, everything still looks very damp. He said it will dry out... is it okay to proceed like this, or should everything be left to dry for a few days first?
I’m quite puzzled. Thanks
In our new build (moved in November 2020), we have noticed that the ceiling in the bathroom is damp in the middle. Yesterday, the builder sent someone to remove the drywall at that spot. Water had accumulated under the vapor barrier and soaked the drywall. Unfortunately, I have no idea how the moisture got there. The area above the vapor barrier was completely dry. Is it possible that moisture from showering could get in through recessed ceiling lights if there is a small gap, or how else could this happen?
Second issue:
After opening the ceiling, it was noticed that the ventilation pipe was not insulated, which caused a lot of condensation moisture to form on the breathable membrane in the cold roof area. The drywall installer is coming today to insulate the pipe and redo the ceiling at that spot. However, everything still looks very damp. He said it will dry out... is it okay to proceed like this, or should everything be left to dry for a few days first?
I’m quite puzzled. Thanks
K
knalltüte11 Jan 2021 17:23I forgot the quotation marks "" or alternatively irony: On at klitzeklein 😉
Update: The drywall installer came and insulated the pipe.
Since we had a large ladder available, I took a look around the entire attic. I noticed that the breathable membrane is damp everywhere, with condensation present. Is this normal? I thought a cold roof is cold but dry. The drywall installer said this is normal and that all the houses here in the new development are like that... but I’m not really convinced.
Since we had a large ladder available, I took a look around the entire attic. I noticed that the breathable membrane is damp everywhere, with condensation present. Is this normal? I thought a cold roof is cold but dry. The drywall installer said this is normal and that all the houses here in the new development are like that... but I’m not really convinced.
K
knalltüte11 Jan 2021 20:48superzapp schrieb:
.... This looks more like a systematic error to me. Is it possible that the pipe was "forgotten" to be sealed only at this one spot? I simply don't believe that. If it wasn’t done here, it wasn’t done anywhere in the house. I’ll just quote myself ...I would definitely take the advice about ventilation seriously, especially without a mechanical ventilation system. That means even if it’s -10°C (14°F), you should ventilate the house several times a day with quick bursts of fresh air; otherwise, you won’t be able to live there mold-free for long.
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