How To Install A Hood Vent Through Roof

It is easier to install equipment when you disassemble its parts one after the other.

How to install a hood vent through roof.

Position the vent pipe up to the bottom of the roof. From up on the roof use a jigsaw or reciprocating saw to cut a 4 in. Install the vent and seal the underside of the vent flange with roofing grade sealant caulk. Leave the drill bit sticking through the roof so you can find the hole.

Hi john yes you can vent a range hood through the roof using a 6 single wall pipe. Use this tutorial if you determine that venting through the roof is the best route. Seal between the top of the vent flange and at the bottom of the roofing shingles as well. Mark out spots on the ceiling.

Run the electrical line from where it comes out of the range hood over into the electrical box. Depending on the location of your range you will need to decide if it is easier to vent through an outside wall versus up through the roof. The should cover the top of the vent flange. Go into your attic.

With the pipe in a vertical position trace around the pipe using a pencil. Then flash it with the shingles that you removed prior on both sides and above the vent. Try to keep it close to the fan location. Apply asphalt roof cement to the bottom of the vent and slide in the vent under the shingles.

Use roofing nails to nail the lower half of the flange in place at the corners. This old house general contractor tom silva shows how to properly install a roof mounted bath fan vent. Start in the attic and drill a hole through the roof in the desired vent location. Be sure to extend the pipe up at least 2 to 3 above the roof to prevent snow buildup from causing problems.

The lower part of the vent flange however will sit on top of the shingles. The penetration will be oval to have a round pipe exit vertically through a pitched roof you need an oval hole in the roof. Disassemble the range hood vent into its units. 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.

Connect them with wire nuts then put them back inside the junction box. The trickiest part of installing a range hood is determining how to run the ventilation ducts. Strip the wires back then pair white to white black to black and copper ground to ground.