ᐅ Mechanical Ventilation with Heat Recovery – You Can Hear Every Word from Another Room – Is This Normal?

Created on: 30 Jul 2018 22:43

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!

Dodo8631 Jul 2018 23:55

#13

Was that already a controlled residential ventilation system?

Alex851 Aug 2018 05:52

#14

I’m renewing the question of whether silencers (sound attenuators) are installed.

I find it quite strange that conversations can be heard from supply air rooms in exhaust air rooms. The common connection point of these rooms leads back to the ventilation unit.

Dodo861 Aug 2018 06:12

#15

I am not sure if silencers are installed. I once heard that they are available as an optional feature for decentralized ventilation systems. However, it seems that nothing was installed here, or it was installed incorrectly, since this is not the case for any of you.

KingSong1 Aug 2018 06:24

#16

Where should silencers normally be installed? We have silencers only in the supply air ducts of the bedrooms, but not in the supply air for the living room, dining room, or office.

munger711 Aug 2018 06:25

#17

Silencers would clearly be visible around the central controlled residential ventilation system in the technical room. They look like oversized exhaust systems. Without silencers, I understand that you will have sound transmission between the rooms.

munger711 Aug 2018 06:29

#18

We have silencers installed in the exhaust air ducts from the kitchen and bathrooms, with exhaust air vented outside. For the supply air into the rooms, each has its own duct, which is soundproofed through the distribution units.

ᐅ Mechanical Ventilation with Heat Recovery – You Can Hear Every Word from Another Room – Is This Normal?

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