I bought the same one but 8" stainless steel installed at the houses in coastal area, it still make a very bad banging noise. May be the wind gard is not big enough to stop fron lifting up and down? I was thinking to make a hole on the top of the hood to relieve the air pressure so it won't lift it. Anyone has any suggestions?
The problem you are having is most likely due to pressure differential between the outside and the inside of the house. I have that problem with my home. A strong wind blows across the house creating low pressure on the outside and it sucks air out of the home. This pushes the damper open and slams it shut when the pressure differential reverses. It took me a few years to figure that out. I have yet to develop a solution. I wonder if a tighter house would have less of an issue.
@@drooplug a tighter house causes more of a pressure differential. That pressure will want to equalize even more by rushing into the vents. It takes the path of least resistance like electricity.
