When considering venting in an over the range microwave there are ducted vents and recirculating vents.
How to roof vent an above range vent.
Conduct the duct to the roof vent.
Connect the vent hood using screws and anchors to ensure a good tight fit.
Nail the lower corners with roofing nails and tar the heads.
In the attic mark a spot directly above the duct so you can cut a hole in the roof decking and extend the vent pipe up through that opening.
This eliminates smoke cooking odors moisture and hot air from remaining in the kitchen.
For those who cannot vent through the roof venting through a sidewall is the next best option.
Cover the exit with a vent cap cover and caulk around the edges to help prevent leaks back into your home.
Choosing a whole house fan.
On the roof tuck the flange of a roof vent under the shingles above the opening and secure it with roofing tacks and roofing sealant.
For this reason vent ducts are the only choice.
Continuous or individual soffits.
Additionally consider cutting a larger hole beyond that of the vent hole so you have room to work on the vent and so you can see exactly what you re doing.
Apply a bead of asphalt roof cement on the bottom of the vent.
Once you drill the hole you will need to cut an adequately sized opening to fit the range hood vent either square or a round shaped one depending on the design of your roof vent.
This will also help you run an electric cable from the range hood over to the power box.
Ultimately the goal of the vent is to pull the air from the microwave and deposit it to the outside.
This is called horizontal wall venting.
After the hole is cut in remove the roofing shingles on both sides of the roof opening and at least 3 rows above the opening.
Be sure to keep this larger piece and use it as a template in the next.
Cut the hole for the vent.
Slide the vent under the shingles so they cover the top half of the vent flange.
The lower half of the flange sits on top of the shingles.
Soffit vents are one of the most popular intake vent styles.
They are easy to install under the roof s overhang which is known as the soffit are generally hidden from sight and provide excellent protection from weather outdoor debris and pests while still allowing air to flow into the attic.
The ventilation system may lead to an exterior vent or it may simply recirculate air back into the kitchen.
How to install a range hood vent through the wall.
Use roofing nails to nail the lower half of the flange in place at the corners.
How to install a microwave oven over your range and vent it outside to avoid smoke and oil getting on your ceiling.
Install the fan the filter and the light kit.