Hello forum,
After the plastering (2 weeks drying time with tilted windows) and without any problems, mold or, according to the site manager, mildew stains appeared very suddenly after the screed was applied. However, I am quite surprised by the large black spots (see photos) and would prefer to consult a mold expert. Does anyone have experience with this? I would rather have the material replaced. Although the spots have decreased after increasing ventilation, in my experience mold can also hide.
Thanks and regards
After the plastering (2 weeks drying time with tilted windows) and without any problems, mold or, according to the site manager, mildew stains appeared very suddenly after the screed was applied. However, I am quite surprised by the large black spots (see photos) and would prefer to consult a mold expert. Does anyone have experience with this? I would rather have the material replaced. Although the spots have decreased after increasing ventilation, in my experience mold can also hide.
Thanks and regards
H
Heikolademm14 Sep 2021 10:30Good morning,
thank you for the input! Yes, it is the ceiling and the walls. Pitch black and it formed really overnight. Now, after two days with one thorough airing (as recommended—this seems sufficient for a small house), it has almost completely disappeared (see photo). I am still worried that it might be mold and that it will come back. Therefore, I am leaning towards consulting an expert who can either reassure me or recommend replacing the materials. In either case, the 500 euros is worth it to me.
Good luck
thank you for the input! Yes, it is the ceiling and the walls. Pitch black and it formed really overnight. Now, after two days with one thorough airing (as recommended—this seems sufficient for a small house), it has almost completely disappeared (see photo). I am still worried that it might be mold and that it will come back. Therefore, I am leaning towards consulting an expert who can either reassure me or recommend replacing the materials. In either case, the 500 euros is worth it to me.
Good luck
I
Interrupt14 Sep 2021 10:44What size house are we actually talking about? In the photo, I only see plaster and a concrete ceiling, right?
There isn’t much to replace there.
Mold only grows on organic materials. It could be that you had some small residues there. In that case, the problem can actually disappear as quickly as it appeared.
There isn’t much to replace there.
Mold only grows on organic materials. It could be that you had some small residues there. In that case, the problem can actually disappear as quickly as it appeared.
D
Deliverer14 Sep 2021 10:49When the corners are completely dry (in my opinion, they still look damp), you can – if you want to be absolutely sure – apply a mold remover before painting.
I don’t think an expert will be necessary.
However, continuing to ventilate thoroughly should be the top priority!
I don’t think an expert will be necessary.
However, continuing to ventilate thoroughly should be the top priority!
I
Interrupt14 Sep 2021 12:06guckuck2 schrieb:
The ventilation rate hardly has anything to do with the size of the house. That's correct; there is no correlation with window ventilation. It would still be interesting to know how the builder came up with the idea to say, "The house is small. Ventilating once a day is enough!" Is this a special case of a tiny house built with solid construction? 😀
H
Heikolademm14 Sep 2021 12:45Thanks for the messages! Since the drying phase started, we have always had dry windows (no condensation, fogging, etc.), and our site manager has clearly stated after several inquiries that ventilating once a day is sufficient. The house has an area of 90m² (970 sq ft).
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