Ideally the range hood should be vented to the outside usually through the roof.
Hood venting to attic.
The best exhaust fan venting is through smooth rigid ducts with taped joints and screwed to a.
Step 2 run the ducts.
Installing a vent hood on the roof.
It is definitely not a good idea to vent a range hood into the attic.
Apply asphalt roof.
When in use venting hoods pull cooking fumes smoke and pollution molecules such as carbon monoxide from smoke either directly outside or through a filtration system.
Your exhaust hood should definitely be vented outside.
How to properly vent a kitchen range exhaust hood.
Step 1 ventilate exits.
Vent exhaust fans through a roof hood roof vent hood details.
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.
Start in the attic and drill a hole through the roof in the desired vent location.
I ve never seen an exhaust hood vented into the attic but yes the grease would cause general grossness and could contribute to a fire mold growth or insect infestation.
The water vapor would also condense and over time lead to mold growth and wood rot.
When venting your exhaust hood you have choices.