Hello everyone,
I urgently need some advice.
We have a house that we bought in 2019 and partially renovated. All the windows are new with double glazing, and we installed underfloor heating.
In recent years, we have already experienced high indoor humidity levels, up to about 65% in winter.
This year, we even had high humidity of 55-65% in all rooms during the summer, and ventilating did not help. Now, in autumn, the humidity is rising above 70%, and we are gradually becoming unsure of what to do.
I measured the walls in all rooms with a moisture meter. The north-facing wall shows about 16% moisture in the corners. The interior walls have about 12%. However, there are no walls that are visibly wet. The roof and walls are also tight.
We regularly air the rooms by cross-ventilation, morning and evening, and now have a dehumidifier running in the bedroom. Still, mold is beginning to grow.
The north basement wall is also damp, but there is roofing felt between the stones, so I don’t think the moisture is rising from below.
Additionally, last year I insulated the basement corner with EPS insulation boards.
I believe I have covered all relevant details.
Does anyone have any idea what I might be doing wrong or where I should look next?
Best regards,
andre007
I urgently need some advice.
We have a house that we bought in 2019 and partially renovated. All the windows are new with double glazing, and we installed underfloor heating.
In recent years, we have already experienced high indoor humidity levels, up to about 65% in winter.
This year, we even had high humidity of 55-65% in all rooms during the summer, and ventilating did not help. Now, in autumn, the humidity is rising above 70%, and we are gradually becoming unsure of what to do.
I measured the walls in all rooms with a moisture meter. The north-facing wall shows about 16% moisture in the corners. The interior walls have about 12%. However, there are no walls that are visibly wet. The roof and walls are also tight.
We regularly air the rooms by cross-ventilation, morning and evening, and now have a dehumidifier running in the bedroom. Still, mold is beginning to grow.
The north basement wall is also damp, but there is roofing felt between the stones, so I don’t think the moisture is rising from below.
Additionally, last year I insulated the basement corner with EPS insulation boards.
I believe I have covered all relevant details.
Does anyone have any idea what I might be doing wrong or where I should look next?
Best regards,
andre007
K
KarstenausNRW3 Nov 2023 20:52andre007 schrieb:
Does anyone have an idea what I might be doing wrong and where I should look?Nothing. Everything is fine. Just monitor the values or consider buying a good-quality hygrometer (that could also be the cause). You don't need to look for anything or take any action.R
RotorMotor3 Nov 2023 21:35What temperatures do you have?
How do you heat?
How severe is the mold issue in the bedroom?
How do you heat?
How severe is the mold issue in the bedroom?
RotorMotor schrieb:
What temperatures do you have?
How do you heat?
How severe is the mold problem in the bedroom? Temperature: 20-21°C (68-70°F)
How we heat: I don’t quite understand the question.
Mold problem: a few spots that we immediately remove and repaint.
andre007 schrieb:
How do you heat: I don’t quite understand the question.The question is whether you are heating at all. How and with what? What is the year the building was constructed?ypg schrieb:
The question is whether you heat the house. How and with what? What is the year of construction? We heat with heating oil. The house was built in 1964.
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