ᐅ Sliding door in an interior drywall partition, airtightness

Created on: 22 Jul 2025 12:51
D
daytona
Hello,
I would like to install a sliding door in newly constructed drywall partitions, partly for aesthetic reasons (as a small highlight) and partly for space reasons (a small 60m² (645 sq ft) detached apartment) – maybe even two doors, one for the bathroom and one for the bedroom. Technically, there are proven systems available from reputable manufacturers.
However, I’m wondering how well these doors seal against sound and possibly moisture from the bathroom. Do you have any practical experience with this?

Thanks and best regards
W
wiltshire
24 Jul 2025 13:02
daytona schrieb:

What I wonder, though, is how well do such doors seal against sound and possibly moisture from the bathroom?
Not all sliding doors are the same. There are systems that meet high standards for soundproofing and sealing. These are expensive and uncommon. You solve that by spending money.

Our sliding door to the bathroom is not optimized for the criteria you mentioned. It is very functional and an attractive design feature. Its sound insulation is worse than a standard door with a solid door leaf. It is also not sealed tightly against steam. Given the room layout in the house and our lifestyle, this works perfectly for us.
D
daytona
24 Jul 2025 21:20
Schorsch_baut schrieb:

During our vacation in the holiday apartment, the bathroom had sliding doors. Despite their solid construction, they were as soundproof as a curtain.
Was glass or a wooden door used?
S
Schorsch_baut
24 Jul 2025 21:39
Wooden door. Installed flush with the wall and even sealed. Still, it was extremely noisy compared to a standard door. The rolling sound also takes some getting used to. After that, my wife gave up on her idea of installing a sliding door to the kitchen.
B
bewobau
9 Aug 2025 12:18
@daytona Have you already chosen a model? We are still looking as well...
D
daytona
10 Aug 2025 00:00
@bewobau Still in the concept phase, but leaning towards the Knauf Pocket Kit in a CW 100 drywall partition. The door would then be supplied by a local dealer, possibly with additional seals from the company Altherm (or similar, I don't have the exact name right now).
And you?
B
bewobau
10 Aug 2025 10:25
We are still in the planning phase. Nothing has been decided yet. At the very least, end position dampers should be included.