Diy Vent Above Bathroom To Attic

The exhaust vent must terminate outdoors.

Diy vent above bathroom to attic.

7 mistakes not to make in your bathroom remodel do let your. Do not simply terminate a bath vent fan duct in an attic as shown in our photo above nor can you just dump the exhaust vent into a crawl space nor into a closed wall floor or ceiling cavity. Bathroom exhaust fans perform an important function by removing excess moisture from your home. Otherwise you re inviting a moisture mold rot insect problem in the building.

Climb into the attic and clear away any insulation from around the hole. In order to accomplish this the roof has to have a hole cut in it. Draw a mark on the bathroom ceiling where you d like to install the vent fan. You should never exhaust the bathroom fan directly into the attic.

Install the roof vent by sliding the top flange under the shingles above it and resting the bottom flange on the shingles below. Re vent pipes otherwise known as auxiliary vents attach to the drain line near your fixture as they run upwards and over the main vent. Secure the vent flanges with roofing nails before installing the shingles. Cutting the attic drain into the line directly above a lower bathroom may create drainage problems due to hampered venting.

Stacking one bathroom above another bathroom or kitchen does not necessarily mean that all of the plumbing continues vertically in a linear fashion. Use an extra long 3 8 inch diameter spade bit to bore a reference hole through the ceiling and into the attic. True vents also have no water running through them. It is because of this that many builders tend to advise against this method.

Venting through a roof vent or exhausting them in the attic could cause moisture problems and rot. Depending on the location of the bathroom it may be easy to vent the exhaust fan through the roof. 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. Vent your bath and kitchen exhaust fans through the roof through a special roof hood.

Apply roofing adhesive on the underside of the flanges to seal. This involves running ductwork from the fan usually though an attic and out through the roof. For optimum performance locate it between the shower and the toilet. While the true vent is simple it isn t always a possible solution since fixtures are rarely located so close to the stack.