ᐅ Mechanical Ventilation with Heat Recovery – You Can Hear Every Word from Another Room – Is This Normal?
Created on: 30 Jul 2018 22:43
D
Dodo86
Hello everyone,
We had the final inspection of our house two weeks ago. Now we have noticed that through the central ventilation system in the guest bathroom and utility room, every word spoken in the dining/kitchen/living area can be heard very clearly, as if you were sitting right next to each other. With the bathroom door open, the sound naturally carries up to the children’s bedrooms upstairs. On the upper floor, the sound transmission through the controlled mechanical ventilation system is significantly less.
Can I still report this as a defect after the final inspection?
Thank you very much and best regards!
We had the final inspection of our house two weeks ago. Now we have noticed that through the central ventilation system in the guest bathroom and utility room, every word spoken in the dining/kitchen/living area can be heard very clearly, as if you were sitting right next to each other. With the bathroom door open, the sound naturally carries up to the children’s bedrooms upstairs. On the upper floor, the sound transmission through the controlled mechanical ventilation system is significantly less.
Can I still report this as a defect after the final inspection?
Thank you very much and best regards!
Dodo86 schrieb:
Did you have to purchase the sound dampers separately, or are they usually included?Everything was included for us.
Best regards
Sabine
First of all, thanks for all the replies. Yes, it really is strange. But the noise definitely comes through the ducts.
It is very loud through the exhaust vent, every word audible. Even in the upstairs bathroom it's still clearly heard. The supply air carries the sound muffled. But of course, it's quite annoying when the children's rooms are not quiet. And the humming of the ventilation system is also transmitted from the utility room into all other rooms.
Here are some photos: the first one shows the exhaust vent in the kitchen. The others are from the utility room.
It is very loud through the exhaust vent, every word audible. Even in the upstairs bathroom it's still clearly heard. The supply air carries the sound muffled. But of course, it's quite annoying when the children's rooms are not quiet. And the humming of the ventilation system is also transmitted from the utility room into all other rooms.
Here are some photos: the first one shows the exhaust vent in the kitchen. The others are from the utility room.
The exposed metal pipe alone conducts a significant amount. In the commonly used systems here, the plastic is embedded in concrete or under the screed.
I believe the flexible ducts at the unit have sound-dampening properties, but as mycraft mentioned, that is probably not enough.
I believe the flexible ducts at the unit have sound-dampening properties, but as mycraft mentioned, that is probably not enough.
Someone from the contracting company is coming by tomorrow.
Is it standard practice to install the sound dampers?
No one ever informed us that this could happen, and the company representatives even said on the phone that it couldn’t be the case... Is it possible to retrofit these sound dampers without any issues?
Is it standard practice to install the sound dampers?
No one ever informed us that this could happen, and the company representatives even said on the phone that it couldn’t be the case... Is it possible to retrofit these sound dampers without any issues?
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