Dear forum members,
I hope you can give me some advice on the following issues:
Last year, new wooden windows were installed in my 1950s old building. The entire building was completely renovated. The upper floor was fully insulated according to KFW standards, while the basement, supervised by a thermal insulation specialist/structural engineer, has no insulation but slightly more "permeable" windows.
Now that it is freezing and even last year, there have been recurring issues with water standing in the window frames. According to the window installer/joiner, this is not a problem, but it worries me.
The windows are properly adjusted and sealed. I have already tried adding an additional seal on the inside, but then the windows no longer close.
Does anyone have any advice? I would be very grateful as I am completely inexperienced here…
Also, on the seals of the casement doors, there are small white plastic plates. Are these necessary? Most of the windows do not have them.
I hope you can give me some advice on the following issues:
Last year, new wooden windows were installed in my 1950s old building. The entire building was completely renovated. The upper floor was fully insulated according to KFW standards, while the basement, supervised by a thermal insulation specialist/structural engineer, has no insulation but slightly more "permeable" windows.
Now that it is freezing and even last year, there have been recurring issues with water standing in the window frames. According to the window installer/joiner, this is not a problem, but it worries me.
The windows are properly adjusted and sealed. I have already tried adding an additional seal on the inside, but then the windows no longer close.
Does anyone have any advice? I would be very grateful as I am completely inexperienced here…
Also, on the seals of the casement doors, there are small white plastic plates. Are these necessary? Most of the windows do not have them.
F
FensterForce14 Jan 2024 11:16Rumbi441 schrieb:
Condensation from showering and cooking? What does the hygrometer say? I rather feel that it’s coming from outside.
We are now ventilating regularly, especially in the evening and morning (40-50%).
B
Buschreiter14 Jan 2024 15:54Rumbi441 schrieb:
50% at 18 degrees… could be problematic. To test if the water comes from Susen… drip a little water on it, but I think it’s from condensation The dew point at an indoor temperature of 18°C (64°F) and 50% relative humidity is 7.4°C (45°F)… I don’t see anything problematic thereH
hanghaus202314 Jan 2024 17:38Buschreiter schrieb:
The dew point at an indoor temperature of 18°C (64°F) and 50% relative humidity is 7.4°C (45°F)… I don’t see any issue with that.Windows can get slightly colder than 7.4°C (45°F) during severe frost. Then water will condense on the glass.B
Buschreiter14 Jan 2024 19:43This model is called single glazing with frost pattern, but that is not the topic here! Have you ever measured the surface temperature on the inside of modern windows? I have, and fortunately, I did not observe such temperatures.
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