In the u s no national ventilation code exists.
Venting kitchen extractor fan through roof.
With the vent hood hooked up turn it on and make sure the lights and fan work.
Vent through the roof.
Screw the ductwork together.
Going to the soffet is 12 feet.
From up on the roof use a jigsaw or reciprocating saw to cut a 4 in.
Try to keep it close to the fan location.
Ventilation codes are regulations with the force of law.
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.
Start in the attic and drill a hole through the roof in the desired vent location.
Leave the drill bit sticking through the roof so you can find the hole.
Yes you can vent a range hood through the roof using a 6 single wall pipe.
In the u s no national ventilation code exists.
Hook up all the wiring following the color coding black to black white to white and green to green or copper use wire nuts to cover the loose ends of the wires and secure it under the electrical component cover.
Be sure to extend the pipe up at least 2 to 3 above the roof to prevent snow buildup from causing problems.
Authority for regulating ventilation in buildings is left up to each state and usually that authority is delegated to local jurisdictions counties and cities.