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.
How to installing a range hood vent through roof.
Apply asphalt roof cement to the bottom of the vent and slide in the vent under the shingles.
Connect them with wire nuts then put them back inside the junction box.
Installing a range hood vent through the ceiling is also called venting vertically and this is the method we recommend.
The trickiest part of installing a range hood is determining how to run the ventilation ducts.
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.
Use roofing nails to nail the lower half of the flange in place at the corners.
Be sure to extend the pipe up at least 2 to 3 above the roof to prevent snow buildup from causing problems.
Strip the wires back then pair white to white black to black and copper ground to ground.
Range hoods are a necessity in any kitchen.
Depending on the location of your range you will need to decide if it is easier to vent through an outside wall versus up.
A properly installed range hood will vent hot air and cooking odors outside as well as help keep kitchen surfaces free of grease.
You should start by drilling a hole through the roof and make sure it goes through where you want your vent to go.
Mark out spots on the ceiling.
Use this tutorial if you determine that venting through the roof is the best route.
Run the electrical line from where it comes out of the range hood over into the electrical box.
The should cover the top of the vent flange.
Yes you can vent a range hood through the roof using a 6 single wall pipe.
Seal between the top of the vent flange and at the bottom of the roofing shingles as well.
The trickiest part of installing a range hood is determining how to run the ventilation ducts.
Install the vent and seal the underside of the vent flange with roofing grade sealant caulk.
Then flash it with the shingles that you removed prior on both sides and above the vent.
Disassemble the range hood vent into its units.
It is easier to install equipment when you disassemble its parts one after the other.