ᐅ Difference Between Apartment Door and Soundproof Door

Bertram100 schrieb:

Regarding the controlled residential ventilation system: there needs to be a gap of at least 1 cm (0.4 inches) under the door to allow for airflow.

I thought about that as well.

netzplan schrieb:

Does this also apply if there is no vent (supply and/or exhaust) in the storage room?

There should be a vent (inlet/outlet) in every room, including the cold storage/laundry room.

We don’t have soundproof doors, and in an average house where you can always hear some outside noise through the windows, exterior walls, and front door, I don’t find them necessary. Of course, you can install them, but that’s an extra cost that, in my opinion, is unnecessary.
However, I don’t know what else you have installed—especially between individual residential units, where priority should definitely be given to sound insulation.
What good are high-quality doors inside your own unit if you can still hear your neighbors through walls or ceilings? People usually aren’t as sensitive to their own noises as they are to noises coming from others.
The controlled ventilation system itself can be quite loud. When the door to the cold storage room is open, it annoys me. My husband leaves the door slightly open, I go over and close it. You can sometimes hear airflow noises in the ducts, but they don’t interfere with everyday sounds, the radio, or daily activities.
Regarding the washing machine and dryer, I’m with the others: what could be disturbing there?
I think good room planning is important—for example, placing technical rooms stacked on top of each other or adjacent, and not next to the living spaces of other units.
I can’t comment on point 1.

Thank you all very much for your feedback.

You are most likely right. I am overthinking minor details. Therefore, I will set aside the topic of "soundproofing" and go for standard doors.

So far, I have been considering doors from "Westag / Getadoor" with a CPL (continuous pressure laminate) finish, even though painted doors have a better surface appearance. How do doors from Prüm or Hori (Holz-Richter) compare to Westag? Hori already offers flush interior doors for around €600 (approx. $650).

Addendum: The Hörmann interior doors (manufacturer probably Huga) are also very affordable compared to other manufacturers. The only drawback is the extremely long delivery times of up to 2-3 months.