Exhaust Vent from Kitchen - Making Noise

[brotherjake70]

Hello,

The vent that is used in the kitchen for the fan over the stove is constantly making noise when there is a little wind outside. All I hear is a loud banging noise. I went outside and noticed the vent flaps always moving and I assume that the flaps are creating the noise inside the house.

Do anyone else experience this pain and if so how can I rectify the problem? Can I put a cap over the vent to prevent the the flaps from constantly moving and causing the banging?

[CSK'sMom]

To fix the problem correctly you need to change the outside vent cap to the proper range hood one. The proper one is metal, wider and has a magnet system which keeps the flapper closed tight when not in use..

[dgmorr]

Get one like this, or some have a built in spring to hold it closed.
http://farm1.static.flickr.com/140/322154758_31e999c951.jpg?v=0