Range Hood Into Attic

Chapter 5 section 505 1 exception 1.

Range hood into attic.

The best exhaust fan venting is through smooth rigid ducts with taped joints and screwed to a special vent hood. Range hoods shall discharge to the outdoors through a single wall duct. 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. There are actually a lot of interesting questions there vern.

Step 2 before you begin cutting a large hole into the wall to install the vent first cut a smaller hole to see what s behind the wall. Measure the range hood to determine where the vent comes out on the range hood and mark it on the wall. Caulk around the seams between the vent hood and the ceiling. Vent your bath and kitchen exhaust fans through the roof through a special roof hood.

Connect the vent hood using screws and anchors to ensure a good tight fit. First we do not have all the facts. I agree with jonas. The duct serving the hood shall have a smooth interior surface shall be air tight and shall be equipped with a backdraft damper.

Mstankiewicz marc stankiewicz july 10 2011 12 06am 8. Install the fan the filter and the light kit. Step 3 install the vent hood. They vent away those unpleasant odors in addition to providing extra light and helping to keep your kitchen cool.

That s where range hoods or vent hoods come into play. Ideally the range hood should be vented to the outside usually through the roof. Range hoods m1503 1 general. Cover the exit with a vent cap cover and caulk around the edges to help prevent leaks back into your home.

It is definitely not a good idea to vent a range hood into the attic. Vern has a range hood on an inside wall and is wondering if he could just use the hollow wall cavity or should he line it and could he just vent into the attic because the attic itself is vented. Ducts serving range hoods shall not terminate in an attic or crawl space or areas inside the building. Venting through a roof vent or exhausting them in the attic could cause moisture problems and rot.

Ducted range hoods are typically the most effective. International mechanical code imc 2009. No other questions need be asked answered to determine that it is improper to vent the range hood into the attic.