Dec 28, 2015 - 01:38 PM
It sounds like the brackets may have been installed to high in the vent and it is allowing the cover to bounce on the roof. This can also happen if there is a lot of wind directed from the front og the RV towards that vent. An easy solutions would be to add a foam gasket to the vent, such as this one here --> https://www.rvupgradestore.com/AC-Roo... It can be cut and trimed to give the vent support.