How To Install Kitchen Exhaust Vent Through Roof

Cover the hole that you are not using for exhaust and secure the hood to its final positioning to mark the location of the vent duct.

How to install kitchen exhaust vent through roof.

Nail the lower corners with roofing nails and tar the heads. Be sure to extend the pipe up at least 2 to 3 above the roof to prevent snow buildup from causing problems. Apply a bead of asphalt roof cement on the bottom of the vent. Remove the old hose from the wall fitting and attach the new hose using the vent hose tape.

Connect the ductwork with sheet metal screws wrap the connections with aluminum faced duct tape then wrap the attic part of the duct work with an insulated sleeve. Go to where the new fan is located and route the hose to the wall where the old exhaust vent hose exits through the wall. Install the vent and seal the underside of the vent flange with roofing grade sealant caulk. Choosing a whole house fan.

Once you have it marked remove the hood and cut a hole in the wall or ceiling. Screw the ductwork together. If you have any questions or comments at all please comme. This video is a comprehensive rundown on how to install a roof vent on a pre existing shingle roof.

You can buy the proper flashing to install it on a flat roof and a roof cap that has screen around it to prevent insects from entering. The lower half of the flange sits on top of the shingles. Use a drill to make guide holes and then use a saw in order to complete the circle. Apply asphalt roof cement to the bottom of the vent and slide in the vent under the shingles.

Seal between the top of the vent flange and at the bottom of the roofing shingles as well. Vent through the roof. Bring the wire connectors flashlight vent hose tape and screwdriver. Slide the vent under the shingles so they cover the top half of the vent flange.

Yes you can vent a range hood through the roof using a 6 single wall pipe. The lower part of the vent flange however will sit on top of the shingles. Run duct work through the attic then attach the stove vent to a roof cap. The should cover the top of the vent flange.