Range Hood Ducting Question
I need to vent straight up through the ceiling out the roof with a 1200 CFM fan. It is a short run of only about 2'-3' in length as the range is on an exterior wall where the roof is at its lowest point and there is no attic or finished space above.
We found out there is a rafter in the way of where our 10" round duct needs to go. We are about 2" short of clearing it. Contractor suggested fitting the duct with an elbow to give it just enough offset to get by the rafter, rather than re-framing that part of the roof.
Any huge disadvantage to this solution you can think of?