ᐅ Is the Absence of a Ventilation Outlet in the Hallway a Serious Issue?

Hello everyone,
Recently, when we compared the plans, we noticed that the ceiling outlet for the mechanical ventilation system was missing in the hallway on the ground floor.
At one point, there was a circle visible in the structural ceiling (but filled in, possibly skimmed over, not sure), and when I checked last time, there was no duct inside; it’s still closed. I assume the outlet was forgotten or something went wrong.

Now, the underfloor heating and screed are already installed on the upper floor (if that matters). Is it still possible to fix this so late in the construction process?
If not, would it be a serious problem if this room is missing from the ventilation system? I’m not quite sure what the consequences would be, since we’ve never had a mechanical ventilation system before.

Since all the glass beads are currently broken, more relevant information is needed to make a concrete statement on this. Apart from that, a conversation with the ventilation technician would be advisable.

Since hallways function as overflow areas, a valve would most likely not be necessary here... although, I have just run out of crystal balls myself.

I wouldn’t fart in the hallway then.

Nice-Nofret schrieb:

Since all the glass balls are currently broken, more relevant information is needed to say anything specific about this. Apart from that, a conversation with the ventilation technician would be advisable.

The ventilation technician who sets everything up comes before the handover and will also give us an introduction. But the question is more whether we should/can still insist on repairs, or what can actually still be done? What exactly would you need as information? I can attach a floor plan. I have marked in green where ceiling outlets were planned. The one in the middle (in the hallway) is basically missing.

Mycraft schrieb:

Since hallways are usually bypass zones, most likely no vent is needed here... but yes, I’m also out of glass balls right now.

That sounds like it’s not too serious at first? What exactly is a bypass zone?

You have rooms with supply air where the air flows in, but the air also needs to flow out of the room again.
For this, the door is either cut at the bottom or the door frame is routed out so that the air can “overflow” into the hallway.
Then you have rooms with exhaust air where the air is drawn out; the air flows from the overflow area in the hallway to these rooms.
This is how air exchange happens within the house.