Roof Vent Flaps In Wind

This flapping noise comes from the wind blowing from the other side of the house.

Roof vent flaps in wind.

A noisy vent cover. Vertical vents were a source of whistles and banging flappers. The vent in the video is. If the noise drives you crazy new spring loaded backdraft dampers 9 to 30 depending on the size should solve the problem.

This is one that has been bothering me and a lot of my neighbors. The high quality plastic and resins used are durable uv resistant and will last for years. Climb onto the roof and locate the vent that is causing the noise. How to keep a roof vent from flapping.

Often a stiff wind will open vent dampers causing them to periodically clang shut. Sometimes altering the cap on the vent reduces the vacuum. Mounting the damper inside the vent protects it from damage and prevents noisy flapping from wind as well as better airflow. 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.

Oversize flanges accommodate water tight installation. With gusts of wind that causes air to actually move from the house out through this exhaust duct. We had a satisfied customer submit this video to us to prove a point. This actually seemed to work pretty well.

When the vent hood fan is shutoff and the airflow diminishes and the flapper begins to close. These types of vents are easy to remove and clean which prevents clogging. Set the screw aside for reuse later. 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.

This video is my attempt at keeping mine from clanging in the wind. Disconnect the vent tube from the problem vent in the attic. This is usually just a few screws. Cheap metal vents can be very loud and obnoxious in the wind.

The vent hood ducts through a rigid or flexible pipe to a cap on the roof or side of your home.