ᐅ Window seal / door seal makes a strange noise

Good morning everyone,

First of all, I wish @Allen a healthy and successful year 23.

Now to my problem:

I have a tilt-and-turn window/door unit from Brömse in the bedroom.

When there are strong, unfavorable wind conditions, it makes a strange rattling/humming noise. This comes from the upper part of the door, apparently exactly where the sealing lip is missing. That area is the ventilation in the window frame. When the wind hits the corner and whistles through, it causes an irregular rattling sound.

At first, I suspected the membrane under the roof tiles, but that is not the case.

What can I do about it? Should I glue in a piece of sealing lip there or tape the gap above the door? I know this would interfere with the ventilation process, but the rattling/humming noise wakes me up at night.

Hello,

since unfortunately no one else seems to have such problems, I want to share what I believe is the cause.
This black ventilation cover above the door leaf appears to be the source of the noise.
This small black plastic part is divided into two halves, and the center section is very soft and unstable.
The airflow causes the middle sections to flutter, which produces the rattling/humming noise.
For testing, I have taped a piece of insulating tape across it. Last night, we finally had some peace and quiet. 😎

Hello,
Is the window with the trickle vent located near a building corner?
Is the window with the trickle vent on the leeward side (downwind side) of the house?
Is the window with the trickle vent on the top floor/attic of the house?
Is, for example, a bathroom fan (exhaust fan) installed on that floor? If yes, is the noise louder, quieter, or not noticeable when the bathroom fan is running?

profil65 schrieb:

Hello,
Is the window with the trickle vent close to a building corner? Approximately 4 meters (13 feet) away
Is the window with the trickle vent on the leeward side (downwind) of the house? Facing west
Is the window with the trickle vent on the top floor/attic of the house? Ground floor, as it’s a bungalow
Is there, for example, a bathroom exhaust fan installed on that floor? If yes, is the noise stronger, weaker, or not noticeable when the exhaust fan is running? No fan or similar installed.

I’ve added the answers behind your questions. 😉

I know exactly three cases, so in my opinion, it is really rare.

• In the 1990s, there was one case. The first model Regelair (made of hard plastic with movable flaps) caused several windows to make rattling noises depending on the wind/wind direction. Installing the second-generation Regelair (at that time new, with small rubber stoppers as dampers) solved the problem—no more noise.
• About 1–2 years ago, I read online about rattling in a window of a different model, also hard plastic with movable flaps; unfortunately, the outcome is unknown.
• And your case, which somehow also fits into this list...

I’m not an expert on this, but since I work a lot with technology, I know that such effects often require very specific conditions (which apparently exist here).
A small adjustment might already help.
For example, changing the size (length) of the open section (making it smaller or larger) or altering the shape of the sealing ends (cutting them at an angle) could be options.
This might eliminate the noise (annoyance 😉) without affecting the ventilation function.