Controlled residential ventilation for new buildings pipe installations

Hello everyone,

we will receive our plot this summer and want to complete the planning by October/November.

Key data:
170 m² living space in a villa without a basement and in an all-inclusive offer, 3 supply air vents on the ground floor/upper floor and 3 exhaust air vents on the ground floor and 2 on the upper floor were proposed. A "ValloPlus 350 MV" was suggested.

Now we are asking ourselves how to best lay the pipes for the controlled residential ventilation (own contribution) and would like some neutral opinions on this:

It is a (city) villa without a basement. The ceilings on the ground floor are to be suspended anyway, as we want spots and LEDs here and want to be able to expand them arbitrarily in the future. This applies to the living room, dining room, kitchen, and the WC -> ergo also the hallway suspended and everything is fine.

Now I have read that the controlled residential ventilation can be installed in the already suspended ceiling instead of the filigree ceiling, with each having penetrations into the floor of the upper floor.

This raises the following questions for me:

1. Is noise development audible if the pipes are not embedded in concrete?
2. Does that even make sense?
3. Then I have to drill holes in the walls and distribute the pipes into the respective rooms -> Wouldn't this transmit noise from room to room?

The same applies to the upper floor with the suspended ceiling and the pipe distribution over the rooms. Pipes would run through a shaft HW <-> bathroom on the upper floor.

What would be optimal in a new building? Filigree ceiling and mill into the walls? (24 cm aerated concrete, 17.5 cm sand-lime brick interior walls) or something completely different?

What I do not want is to lead this into the attic and through the insulation or then insulate the pipes, etc.

What else occurred to me is that the HW room adjoins the garage, is it possible/sensible (also technically (performance, etc.)) to lay the exhaust/supply air pipes through the garage and basically vent them sideways? It would be about 5 meters, would anything speak against it (pipe breakthrough for the central vacuum cleaner into the garage would have to be done anyway)? The background is that we will have an anteroom on the other house wall and there is no breakthrough possible there.

Best regards,
Mateo

the shaft in the bathroom only takes up space. you can order the concrete ceiling with recesses (by the way also for your spots)

then you lay the pipes from the ground floor to the upper floor and distribute them on the concrete ceiling on the upper floor, once through the holes downwards for ventilation ground floor from ceiling and once through the screed upwards for ventilation upper floor from floor.

this way you save yourself a box in the bathroom on the upper floor and everything is then covered with screed.

By "Schacht" I meant rather the distributors, for which there will also be the recess. Of course, you can do it with the spots like that, but I would say that afterwards you are much more open to new installations, and the recesses also cost something.

I thought about it like this too: Foundation, filigree ceiling (in the ground floor like in the upper floor) laying, but how do I now get the pipes practically into the ceiling of the upper floor without having to go through the attic, i.e., to insulate the pipes, etc.?

The pipes for the ground floor and the upper floor are both located in the concrete ceiling between the ground floor and the upper floor, namely ON the ceiling and UNDER the screed of the upper floor. They are there in the insulation, on the electrical cables, under the underfloor heating. And the gaps are filled with loose insulation. And on top of that comes the screed.

And in the upper floor, the ventilation goes over the floor.

In the ground floor, over the ceiling. And so that it goes THROUGH the concrete ceiling, they should already leave openings in the factory.

I already understand what you are getting at, i.e. I wouldn’t have any FLOOR inlets on the ground floor, only the ones in the ceiling -> are there any advantages/disadvantages here?

On the upper floor, they would only be in the floor and NOT in the ceiling (roof structure) -> are there any advantages/disadvantages here?

Basic question, why still put the stuff in the screed then? I mean, if they are supposed to come out of the floor on the upper floor, couldn’t you just plan/lay them in the ceiling where the pipes for the ceiling valves to the ground floor are already laid anyway?

Then I would have the empty conduits for electrical and the pipes for the controlled residential ventilation in the ceiling and only the underfloor heating in the screed?

He is saying he wants to put the pipes into the suspended ceiling - do you even have something like that? Rather unusual. Many roads lead to Rome. We have the pipes for the ground floor in the ground floor ceiling and the ones for the upper floor on the ground floor ceiling. Putting everything into the ceiling wouldn't have worked.