Kitchen Roof Vent Installation

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.

Kitchen roof vent installation.

Then flash it with the shingles that you removed prior on both sides and above the vent. This way you can properly flash your kitchen hood vent. Drip edge vents are a two in one installation that promote water shedding at the eaves and rakes of a roof while also allowing for ventilation into the attic. The best exhaust fan venting is through smooth rigid ducts with taped joints and screwed to a special vent hood.

You may have to shift the vent position several inches to avoid ceiling and roof framing. As a general rule of thumb take the square footage of your kitchen and double that amount to determine the cfm you ll need. Venting through a roof vent or exhausting them in the attic could cause moisture problems and rot. Install the vent and seal the underside of the vent flange with roofing grade sealant caulk.

Another consideration is where to vent the hood. Drop a plumb bob down from the roof to the wire so you can find the approximate roof exit location. 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.