Hello everyone,
I have a problem with humidity in my apartment.
All rooms have humidity levels between 55% and 70% despite regular ventilation.
A few months ago, we had mold remediation done, and now we want to solve this problem because we only took ownership of this condominium a few months ago. The previous owner paid for the mold remediation.
Each room has a 100mm (4 inch) hole for air exchange.
There is a fan in the bathroom that is supposed to create negative pressure inside the apartment.
I think this system simply does not work properly.
Now, my idea is to install a decentralized ventilation unit in each of the 100mm (4 inch) ducts, set to activate based on certain humidity levels, and then I would have peace of mind.
However, I am not sure if the 100mm (4 inch) duct diameter is sufficient.
Increasing the size is difficult because I need approval from the other owners, and that takes time...
Would this work?
Thanks in advance for your opinions.
I have a problem with humidity in my apartment.
All rooms have humidity levels between 55% and 70% despite regular ventilation.
A few months ago, we had mold remediation done, and now we want to solve this problem because we only took ownership of this condominium a few months ago. The previous owner paid for the mold remediation.
Each room has a 100mm (4 inch) hole for air exchange.
There is a fan in the bathroom that is supposed to create negative pressure inside the apartment.
I think this system simply does not work properly.
Now, my idea is to install a decentralized ventilation unit in each of the 100mm (4 inch) ducts, set to activate based on certain humidity levels, and then I would have peace of mind.
However, I am not sure if the 100mm (4 inch) duct diameter is sufficient.
Increasing the size is difficult because I need approval from the other owners, and that takes time...
Would this work?
Thanks in advance for your opinions.
B
bluetoothtony8 Apr 2024 19:41nordanney schrieb:
So? Those are normal values. You have exactly the same right now with a decentralized ventilation system.Normal?
We always have over 60% humidity.
And currently, we try to ventilate at least twice a day.
My idea would simply be to install a ventilation system everywhere.
I could also widen two holes to 160-180mm (6.3-7 inches).
N
nordanney8 Apr 2024 20:13bluetoothtony schrieb:
Normal?
We always have over 60% Yes. Me too. Right now it’s 62% inside—which is actually the same as outside. The temperatures inside and outside are also the same. That’s physics and cannot be changed.
bluetoothtony schrieb:
And we are currently trying to ventilate at least twice a day. I do that continuously with a ventilation system.
bluetoothtony schrieb:
My idea would be simply to install a ventilation system everywhere.
I could also widen two holes to 160-180mm (6-7 inches). You can do that. It’s a good idea. But with the current values, it won’t help at all and won’t reduce the humidity in the apartment. That’s a misconception. Ventilation only really helps when it’s cold outside—read up on relative and absolute humidity. There are also online calculators where you can check how humidity changes at different temperatures. Then you’ll see that right now, you don’t stand a chance.
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