Roof Vent Flaps In Wind

This actually seemed to work pretty well.

Roof vent flaps in wind.

A noisy vent cover. The vent hood ducts through a rigid or flexible pipe to a cap on the roof or side of your home. With gusts of wind that causes air to actually move from the house out through this exhaust duct. Set the screw aside for reuse later.

There are a couple of things that can help to reduce the problem. 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. This is one that has been bothering me and a lot of my neighbors. The vent in the video is.

Oversize flanges accommodate water tight installation. This video is my attempt at keeping mine from clanging in the wind. If the noise drives you crazy new spring loaded backdraft dampers 9 to 30 depending on the size should solve the problem. Climb onto the roof and locate the vent that is causing the noise.

This is usually just a few screws. Disconnect the vent tube from the problem vent in the attic. We had a satisfied customer submit this video to us to prove a point. When the vent hood fan is shutoff and the airflow diminishes and the flapper begins to close.

Cheap metal vents can be very loud and obnoxious 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. This flapping noise comes from the wind blowing from the other side of the house.

Often a stiff wind will open vent dampers causing them to periodically clang shut. Lift up the edges of the surrounding roof. Mounting the damper inside the vent protects it from damage and prevents noisy flapping from wind as well as better airflow. How to keep a roof vent from flapping.

These types of vents are easy to remove and clean which prevents clogging.