Why is my bathroom vent flapper making noise from the wind?

Jude Batz asked a question: Why is my bathroom vent flapper making noise from the wind?
Asked By: Jude Batz
Date created: Mon, Jun 7, 2021 3:30 AM

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Those who are looking for an answer to the question «Why is my bathroom vent flapper making noise from the wind?» often ask the following questions:

❔ Bathroom fan flapper noise when running?

How to Stop Bathroom Vent Flapper Noise When Windy Use Sound Absorption. For a quick, budget-friendly fix (or cover-up), you can dampen the sound from your damper (no pun... Add Some Weight. Using some silicone adhesive, attach a few small washers to the flap. Alternatively, you can use a few..…

❔ Bathroom fan flapper noise when on floor?

How to Stop Bathroom Vent Flapper Noise When Windy Use Sound Absorption. For a quick, budget-friendly fix (or cover-up), you can dampen the sound from your damper (no pun... Add Some Weight. Using some silicone adhesive, attach a few small washers to the flap. Alternatively, you can use a few..…

❔ Bathroom fan flapper noise when on stairs?

If you hear a banging or clanging noise coming through your bathroom fan when it’s windy, it is likely that the wind is picking up the vent flap and hitting it continuously with a banging noise. These flapping noises come from the wind blowing from the other side of the house which pressurizes it on one side and depressurizes it on the side of the exhaust hood.

10 other answers

If your bathroom flapper makes noise due to the wind, it’s likely a thin piece of steel operated by gravity. It opens when the fan goes on, and then gravity drops it back down. These styles of flappers are popular, but wind can manipulate them very easily.

These flapping noises come from the wind blowing from the other side of the house which pressurizes it on one side and depressurizes it on the side of the exhaust hood. With gusts of wind, that causes air to actually move from the house out through the exhaust duct. There are various remedies for the bathroom fan to stop flapping.

The noise is because the flapper is hitting on a metal to metal surface. The flapper should have a thin piece (1/8") of foam stripping to sit on when closed.This foam strip will stop the noise considerably. Either apply this thin foam strip to the flap disc or to the edge that the flapper rests on, whichever is the easiest. Hube, Nov 14, 2007

The most probable reason for this is the strong wind blowing outside. The wind blowing from out of the house may be picking up and hitting the vent flapper, causing it to flap up and down and making that annoying noise you hear. You’re Living in an Apartment Complex Sign: low buzzing noise

Bathroom vent flap making a lot of noise when windy - took video - suggestions? Hello, All of the vents in the bathrooms of the entire house make a lot of noise when its windy outside, which is supposedly very common. However, this noise echoes throughout the entire house, and I definitely can't get used to the sound, so I want to come up with a solution. Here is a video of where the noise is ...

This flapping noise comes from the wind blowing from the other side of the house. This pressurises the house a bit on one side, and depressurises it on the side of the exhaust hood. With gusts of wind, that causes air to actually move from the house out through this exhaust duct. There are a couple of things that can help to reduce the problem.

Some reason you have the outside vents in just the right place for to much wind. I assuming they are not having this problem when the central heat is on. Doors closed to bath and a vent close by the exhaust fan. Try this first. Lambro 1775L Inline Damper get any brand. This one just easy for you to goggle. Still a prob. Maybe a bad batch of the ...

The vent probably has a movable flap that lays closed when the exhaust fan is not running. It helps keep birds out. (Swallows like to next in such places.) You might try adding some of the felt or soft silicon dots for quieting cabinet doors.

When the gust of wind stops the velocity of air by the vent reduces to zero and the pressure increases, thus suddenly stopping the flow of air and making the flapper close hard enough to be heard. Same effect occurs when the shower curtain is drawn to you in the shower.

Anyone knows how to fix this?

Your Answer

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If you hear a banging or clanging noise coming through your bathroom fan when it’s windy, it is likely that the wind is picking up the vent flap and hitting it continuously with a banging noise. These flapping noises come from the wind blowing from the other side of the house which pressurizes it on one side and depressurizes it on the side of the exhaust hood.

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