Our contractor installed a 636 roof cap on our roof with about 4 feet of rigid ductwork going down vertically to the bathroom exhaust fan. Any time it rains or sleets, it sounds like we have a tin roof on our bathroom because of the rain/sleet hitting the roof cap. Do you have a suggestion for how to quiet the noise? Do you make any sort of hood that could go over the cap? Do you know if anyone else makes such a product? Thanks!
Include at least one or two bends in the duct work to soften the noise. The direct vertical alignment of the duct is the cause of your noise problem.
Date published: 2016-09-24