This way you can properly flash your kitchen hood vent.
Kitchen roof vent installation.
Vent your bath and kitchen exhaust fans through the roof through a special roof hood.
Seal between the top of the vent flange and at the bottom of the roofing shingles as well.
The best exhaust fan venting is through smooth rigid ducts with taped joints and screwed to a special vent hood.
Then examine the roof directly above the wire to make sure there s room to install a roof vent.
Drop a plumb bob down from the roof to the wire so you can find the approximate roof exit location.
Venting through a roof vent or exhausting them in the attic could cause moisture problems and rot.
While this can be done through the ceiling and out through the roof it s best to go through an outside wall because there s less need for waterproofing.
A drip edge vent is made of a corrosive resistant material that sticks out about three inches back from the roof edge and then bends downward over them.
Then flash it with the shingles that you removed prior on both sides and above the vent.
You may have to shift the vent position several inches to avoid ceiling and roof framing.
Back in the kitchen mark the cabinets and cut holes for.
Another consideration is where to vent the hood.