Good morning everyone,
I have been living in my own home since June (maisonette apartment, 3 rooms, 70m2 (750 sq ft)). Although I ventilate frequently and wipe off the window condensation twice daily (I have already experienced this with fogged windows in my previous rental apartment, which was also newly built), the windows still fog up from the inside, especially at temperatures below 5°C (41°F).
The two Velux windows (kitchen, dressing room) are particularly affected. This morning, while cleaning, I noticed the first black "spots."
Is this already mold or just dirt that, combined with the condensation, looks like mold?
I look forward to your answers.
I have been living in my own home since June (maisonette apartment, 3 rooms, 70m2 (750 sq ft)). Although I ventilate frequently and wipe off the window condensation twice daily (I have already experienced this with fogged windows in my previous rental apartment, which was also newly built), the windows still fog up from the inside, especially at temperatures below 5°C (41°F).
The two Velux windows (kitchen, dressing room) are particularly affected. This morning, while cleaning, I noticed the first black "spots."
Is this already mold or just dirt that, combined with the condensation, looks like mold?
I look forward to your answers.
B
Bauexperte14 Dec 2015 12:17Hello,
I can only repeat myself—get a construction dryer (dehumidifier) and make sure to remove the worst moisture from the apartment as quickly as possible. Consistently ventilate at least 3 times a day for 10-15 minutes with cross-ventilation and avoid adjusting the thermostats; the underfloor heating doesn’t react fast enough for regulation to have a noticeable effect.
Besides that, I think just 2 ventilation units for 70 sqm (750 sq ft) is simply too few 😉
Regards, Bauexperte
ReinhardM schrieb:On weekdays?
@Bauexperte
At least once a day,
ReinhardM schrieb:On weekends?
Preferably 2-3 times a day.
ReinhardM schrieb:That’s unfortunate because a lot of moisture accumulates in these rooms (from sweating, breathing, bathing). Any solution in sight?
There is also a ventilation system for the bedroom and bathroom, but it is currently not working due to a failure.
I can only repeat myself—get a construction dryer (dehumidifier) and make sure to remove the worst moisture from the apartment as quickly as possible. Consistently ventilate at least 3 times a day for 10-15 minutes with cross-ventilation and avoid adjusting the thermostats; the underfloor heating doesn’t react fast enough for regulation to have a noticeable effect.
Besides that, I think just 2 ventilation units for 70 sqm (750 sq ft) is simply too few 😉
Regards, Bauexperte
B
Bauexperte14 Dec 2015 12:18ReinhardM schrieb:
I don’t want to buy several for the beginning.You can rent the dryers from a good building materials supplier 😉Best regards, Bauexperte
R
ReinhardM14 Dec 2015 12:20@Bauexperte
I air out the apartment at least once daily after getting up, and usually once more before going to bed. On weekends, I also ventilate once more during the day. The fan in the bedroom will be replaced in the next few days. I have now ordered the mentioned dehumidifier, and it should be delivered on Thursday. Then I will test it.
I air out the apartment at least once daily after getting up, and usually once more before going to bed. On weekends, I also ventilate once more during the day. The fan in the bedroom will be replaced in the next few days. I have now ordered the mentioned dehumidifier, and it should be delivered on Thursday. Then I will test it.
D
Doc.Schnaggls14 Dec 2015 12:21ReinhardM schrieb:
@FrankH
I don’t want to buy several for the beginning.I’m not sure if this is the right approach to save money at this point.
A mold damage is definitely more expensive to repair.
I would suggest renting appropriate dryers – this usually works quite well at larger hardware stores.
Best regards,
Dirk
Edit: Building expert was faster... 😕
R
ReinhardM14 Dec 2015 12:31Doc.Schnaggls schrieb:
Mold damage is definitely more expensive to remediate. I am aware of that. However, it can’t be normal for such a high level of moisture to exist in a new building. Therefore, I suspect a temporary problem simply related to moving in six months ago, which should improve after the first year.
In my previous (rental) apartment, I had the same problem despite ventilating several times a day.
Renting a dehumidifier is unfortunately not cheap either; I’m currently seeing rates of €7 per day, which is nearly €210 per month!
ReinhardM schrieb:
I am aware of that. However, it cannot be considered normal for a newly built house to have such high moisture levels.High residual moisture is common in new buildings. During the first 1-2 years, it is normal to heat the house or apartment to help dry it out. In fact, it can be beneficial to heat it a bit more than the minimum required during this period.
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