Hi everyone
I have a terracotta tiles roof
When I climb inside the roof cavity I can feel that there is a draft inside the roof as the wind goes through the roof which is ok because that is the roof is designed I believe
However I have a rangehood vent which goes through the ceiling and all the way through the roof cavity and comes out of the terracotta roof and the issue is that as soon as it is windy outside the range hood flaps are opening and closing every few seconds. Clearly there is a draft pushing the flaps in which might have to do with the draft inside the roof cavity. The question is that what could be the issue and how to fix the rangehood flaps opening and closing every few seconds