The holes are not just for the range hood but also drill one or two more holes for the electric wires too.
Vent range hood through wall or roof.
It is installed much like an exhaust fan and works by expelling the heat directly from the kitchen in a straight passageway.
To vent a range hood through a wall or roof you have to open up a hole in the ceiling using a drill machine.
This particular step will require a level of pinpoint accuracy from you because once there is a mistake the whole procedure goes.
Range hoods are typically vented using a special duct work that runs through a roof and less often through an exterior wall of your house.
It is considered a little more expensive to vent your range hood through the roof than through the wall.
The range hood vent uses ducts that are made to run in the roof or walls.
This is why you need to install the range hood vent properly or you call a roofing contractor.