Ideally the range hood should be vented to the outside usually through the roof.
Kitchen vent to attic. Specific requirements always take precedence over general sections. It is definitely not a good idea to vent a range hood into the attic. The duct should be smooth and straight with as few bends as possible. The duct for your exhaust fan needs to be run to the outside of the house to remove the chance of a fire hazard.
Vent your bath and kitchen exhaust fans through the roof through a special roof hood. This is a step by step series starting with planning and materials to final installation and sealing the gaps. Your vent hood will have places available for either attic or wall exhaust. Can you vent a bathroom exhaust fan into the soffit vents.
Venting kitchen hood into attic. When was this described as a whole house ventilation type attic vent. The question was in reference to a vent for a range. The specific code section for domestic kitchen exhaust systems is 505 1.
Besides you are referencing a general requirement. If you vent the bathroom exhaust fan to close to the soffit vents which are vented plates under your homes outer edge and roof your home the air can be sucked right back into the attic from the soffit. Small diameter ducts could trap grease creating a fire hazard. The kitchen vent fan must exhaust directly to the outside not into an attic crawlspace or a space between floors.
In either case do not vent into the wall or the attic. No you cannot vent the bathroom exhaust fan into the soffit vents. Charmaine bettenhausen january 9 2018. You may have to shift the vent position several inches to avoid ceiling and roof framing.
Building a large post frame garage full time lapse construction. Attach all ductwork then go up to the attic and reposition the plumb bob so it drops straight into the middle of the pipe coming up from the kitchen. Step 2 run the ducts. Venting kitchen hood into attic.
The fan s installation instructions should specify the diameter of the duct. Rr buildings recommended for you. The best exhaust fan venting is through smooth rigid ducts with taped joints and screwed to a special vent hood. Never before seen footage duration.
Venting through a roof vent or exhausting them in the attic could cause moisture problems and rot.