Installing Roof Vent For Bathroom Exhaust Fan

Choosing a whole house fan.

Installing roof vent for bathroom exhaust fan.

Center the nail between two rafters. Depending on the location of the bathroom it may be easy to vent the exhaust fan through the roof. Attach the drywall filler to a larger piece of wood set it in the hole and drive screws through the ceiling into the wood. In this video this old house general contractor tom silva shows how to properly install a roof mounted bath fan vent.

The lower half of the flange sits on top of the shingles. Each fan vents separately out the roof. The patched areas can be repaired with spackling later. Slide the vent under the shingles so they cover the top half of the vent flange.

From the roof find the nail and use the utility knife to cut roof shingles from around the nail. It is because of this that many builders tend to advise against this method. For optimum performance locate it between the shower and the toilet. This involves running ductwork from the fan usually though an attic and out through the roof.

Apply a bead of asphalt roof cement on the bottom of the vent. In order to accomplish this the roof has to have a hole cut in it. If you have two bathrooms that are close together and one has an exhaust fan and the other doesn t you might be. Cut a piece of drywall to make the ceiling hole the right size for your fan.

Each bathroom has its own exhaust fan. Draw a mark on the bathroom ceiling where you d like to install the vent fan. Climb into the attic and clear away any insulation from around the hole. One in line centrifugal fan can be mounted in the attic to exhaust the moisture from two bathrooms.

We explain how to install bathroom exhaust fans or vents the vent ducting the vent termination at the wall soffit or roof vent fan wiring bath vent duct insulation bath vent lengths clearances routing and we answer just about any other bathroom ventilation design or installation question you may have. From inside the attic drive a nail through the roof directly above the bathroom vent fan. Use an extra long 3 8 inch diameter spade bit to bore a reference hole through the ceiling and into the attic. Nail the lower corners with roofing nails and tar the heads.

One is to route it over to a soffit vent and attach it to the back of the soffit vent but this can work against your exhaust fan because that s actually an air intake so not as good as other methods.