How To Vent An Exhaust Fan Through Existing Attic Vent

Nail the lower corners with roofing nails and tar the heads.

How to vent an exhaust fan through existing attic vent.

Options for venting a bathroom exhaust fan include best to worst. Remove the knockout hole on the side of the fan s housing and attach a cable connector. Set the vent fan down into place between the joists centered on the ceiling hole. Taking advantage of this natural process referred to as passive ventilation is the most common way to vent an.

In order to accomplish this the roof has to have a hole cut in it. No you cannot vent your bathroom exhaust fan into the attic. In all cases the ducting needs to conduct the exchaust to the building exterior and needs to terminate in an animal proof vent cover. This involves running ductwork from the fan usually though an attic and out through the roof.

By the diy experts of the family handyman magazine. Slide the four metal brackets into the tabs protruding from the sides of the vent fan. Slide the vent under the shingles so they cover the top half of the vent flange. The lower half of the flange sits on top of the shingles.

Venting two bathroom exhaust fans through one roof duct won t work sorry to say. This article describes routing bath exhaust fan duct upwards through an attic or roof space or downwards through a floor or crawl space. You should never exhaust the bathroom fan directly into the attic. Your attic is not a temperature controlled environment is never the same temperature as your living space and generally closer to the temperature outside.

Depending on the location of the bathroom it may be easy to vent the exhaust fan through the roof. Hot air exhaust vents located at the peak of the roof allow hot air to escape. It is because of this that many builders tend to advise against this method. Choosing a whole house fan.

Bathroom ventilation fan duct routing routing a bath vent duct down out or up through an attic or roof out. When venting a bathroom exhaust fan make sure to vent the air to the outside rather than into your attic where it can cause mold and mildew to form. Apply a bead of asphalt roof cement on the bottom of the vent. Use foil duct tape.