Attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents.
Hood venting to attic.
The ducting may run horizontally or vertically depending on your type of hood.
Venting through a roof vent or exhausting them in the attic could cause moisture problems and rot.
If you are adding a new range hood over your stove and plan to vent it out through the roof you will need to get an adequately sized duct that will run all the way up through the ceiling into the attic and all the way up through the rooftop where it will be connected to your roof top vent.
Connect the ductwork with sheet metal screws wrap the.
The main difference between these hoods is that island hoods must first vent through the ceiling before running horizontally.
Ideally the range hood should be vented to the outside usually through the roof.
Air vent 1320 cfm weatherwood galvanized steel electric power roof vent.
The duct for your exhaust fan needs to be run to the outside of the house to remove the chance of a fire hazard.
Range hood venting options.
Cut the hole for the vent.
Vent your bath and kitchen exhaust fans through the roof through a special roof hood.
Both island range hoods and wall mounted range hoods can vent vertically and horizontally.
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.
Your vent hood will have places available for either attic or wall exhaust.
Step 2 run the ducts.
In either case do not vent into the wall or the attic.
We ll cover how to run an insulated duct sleeve through the attic and out the roof to get the best airflow.
This article shows the best way to vent a hood and exhaust fan that s above the stove when you have an interior wall with cabinets above.
Intake vents located at the lowest part of the roof under the eaves allow cool.
Be sure to keep this larger piece and use it as a template in the next.
Cover the hole that you are not using for exhaust and secure the hood to its.