R
ReinhardM14 Dec 2015 10:14Good 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 10:24Hello,
I would suspect mold – keeping in mind that remote diagnoses should always be taken with caution. Your note that the water is on the inside of the windows and not on the outside leads me to this conclusion. You may ventilate regularly – how often, twice a day? – but usually that is not enough to fully dry out the building.
The moisture needs to be removed, so as a first step you should run a dehumidifier for some time and take a close look at decentralized ventilation if you want to keep the humidity under control permanently.
Regards, Bauexperte
ReinhardM schrieb:
I have been living in my own home since June (maisonette apartment, 3 rooms, 70m2 (750 sq ft)). Although I ventilate frequently .....
I would suspect mold – keeping in mind that remote diagnoses should always be taken with caution. Your note that the water is on the inside of the windows and not on the outside leads me to this conclusion. You may ventilate regularly – how often, twice a day? – but usually that is not enough to fully dry out the building.
The moisture needs to be removed, so as a first step you should run a dehumidifier for some time and take a close look at decentralized ventilation if you want to keep the humidity under control permanently.
Regards, Bauexperte
Hello,
the fact that so much water is condensing on the windows suggests to me that there is still a lot of moisture inside your home.
How do you ventilate? Tilt position? Fully open? Cross-ventilation through several rooms or with closed interior doors? Are all rooms heated?
Have you ever placed a moisture meter (hygrometer) in the rooms?
We ventilate two to three times a day for 5-10 minutes completely with cross-ventilation. Humidity levels inside are 50-60%. Moved in in October.
the fact that so much water is condensing on the windows suggests to me that there is still a lot of moisture inside your home.
How do you ventilate? Tilt position? Fully open? Cross-ventilation through several rooms or with closed interior doors? Are all rooms heated?
Have you ever placed a moisture meter (hygrometer) in the rooms?
We ventilate two to three times a day for 5-10 minutes completely with cross-ventilation. Humidity levels inside are 50-60%. Moved in in October.
R
ReinhardM14 Dec 2015 11:14Hello
@Bauexperte
At least once a day, preferably 2-3 times daily. There is also a ventilation system for the bedroom and bathroom, but it is currently not working due to a malfunction.
@Jochen104
I ventilate by opening windows throughout the entire apartment (cross-ventilation) for about 5 minutes. After that, I turn the heating back on and warm the rooms to level 3 out of 6 (underfloor heating). I haven’t used a hygrometer yet but will try to get one.
@Mycraft
Yes, the rooms are heated as well, although the bedroom and dressing room receive the least heating.
@Bauexperte
At least once a day, preferably 2-3 times daily. There is also a ventilation system for the bedroom and bathroom, but it is currently not working due to a malfunction.
@Jochen104
I ventilate by opening windows throughout the entire apartment (cross-ventilation) for about 5 minutes. After that, I turn the heating back on and warm the rooms to level 3 out of 6 (underfloor heating). I haven’t used a hygrometer yet but will try to get one.
@Mycraft
Yes, the rooms are heated as well, although the bedroom and dressing room receive the least heating.
ReinhardM schrieb:
At least once a day, preferably 2-3 times a day. ReinhardM schrieb:
I ventilate by opening windows throughout the entire apartment (cross-ventilation). For about 5 minutes, then I let the heating run again and heat the rooms at level 3 out of 6 (underfloor heating). Once a day for only 5 minutes is definitely not enough. In my opinion, it should be 10-15 minutes, especially if you have humidity issues, and then at least twice a day. The dry, cold air right now is actually ideal for this.
ReinhardM schrieb:
Although the bedroom and dressing room are heated the least. What temperatures do you have there?
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