Roof Vent Flaps In Wind

Climb onto the roof and locate the vent that is causing the noise.

Roof vent flaps in wind. With gusts of wind that causes air to actually move from the house out through this exhaust duct. How to keep a roof vent from flapping. This is usually just a few screws. Vertical vents were a source of whistles and banging flappers.

If the noise drives you crazy new spring loaded backdraft dampers 9 to 30 depending on the size should solve the problem. Disconnect the vent tube from the problem vent in the attic. This actually seemed to work pretty well. This is one that has been bothering me and a lot of my neighbors.

Cheap metal vents can be very loud and obnoxious in the wind. Mounting the damper inside the vent protects it from damage and prevents noisy flapping from wind as well as better airflow. This flapping noise comes from the wind blowing from the other side of the house. We had a satisfied customer submit this video to us to prove a point.

A noisy vent cover. Keep in mind that wind blowing across a vent opening creates a vacuum the faster things blow thus creating flap rattles as the wind gusts. The vent in the video is. These types of vents are easy to remove and clean which prevents clogging.

This video is my attempt at keeping mine from clanging in the wind. This pressurises the house a bit on one side and depressurises it on the side of the exhaust hood. Sometimes altering the cap on the vent reduces the vacuum. When the vent hood fan turns on the air pressure rushing out forces the vent to open breaking the magnetic force holding the flapper closed.

Often a stiff wind will open vent dampers causing them to periodically clang shut. The high quality plastic and resins used are durable uv resistant and will last for years. There are a couple of things that can help to reduce the problem. The vent hood ducts through a rigid or flexible pipe to a cap on the roof or side of your home.

Set the screw aside for reuse later.