Is it acceptable to vent range hood exhaust through attic and out ridge vent?

Answer 1

Of course, but you need to duct it all the way through the attic to the roof and buy a roof vent cap for range hoods. About $20. DO NOT vent INTO the attic. Grease laden air will settle on the framing and create a FIRE HAZARD.

Answer 2

Range Hood Roof Vent Cap

Answer 3

Are you saying that you won't have any ductwork in the attic? If so, that is a TERRIBLE idea. Check with your local building code department. The grease is the big problem, the smell is a secondary consideration. Whatever you finally construct, make sure that it is fairly easy to disassemble for routine cleaning and/or replacement. Be sure to clean (degrease) the filter/s in the hood at least once a month.

Answer 4

It is actually better than cutting a hole in the roof. Less chance (no chance) of creating a leak. Make sure you use the proper endcap on the duct, with a screen to keep insects out.

Answer 5

no, moisture is not the problem, it is fire. should a grease fire climb into & up the tube it would exit +/- 1ft above the roof & it would be very difficult for it to catch the house on fire. Vented into the attic, you are assured of a fire, given the same situation.

Answer 6

it depends on your local codes some places require outdoor venting some don't, if you smoke detectors in the house you will probably want to vent outside

Answer 7

Think about the damp that will get into your attic from the cooking and also from the condensation - do you really think that's a good idea?

**EDIT**
I thought most hoods had grease traps and filters built into them these days?