Installing Bathroom Exhaust Roof Vents

The lower half of the flange sits on top of the shingles.

Installing bathroom exhaust roof vents.

See below for a shopping list and tools subscribe. On average buying a fan and having it installed costs as low as 110 and as much as 800 on the high end. Secure the vent flanges with roofing nails before installing the shingles. Use an extra long 3 8 inch diameter spade bit to bore a reference hole through the ceiling and into the attic.

Apply a bead of asphalt roof cement on the bottom of the vent. More than nineteen hundred homeowners report that the average bathroom fan installation cost is 374 or between 239 and 538. Idea 1 the preparation. For optimum performance locate it between the shower and the toilet.

The fan itself can cost 15 to 300 or more. If we vent too close to it the warm moist air may return to the bathroom. Draw a mark on the bathroom ceiling where you d like to install the vent fan. Apply roofing adhesive on the underside of the flanges to seal.

I recommend replacing the vent pipe with insulated vent pipe. Next position your ladder against your home and climb up to your roof. Install the roof vent install the roof vent by sliding the top flange under the shingles above it and resting the bottom flange on the shingles below. If the tubing is installed under the roof decking simply center robert s base flange over the vent hole.

Nail the lower corners with roofing nails and tar the heads. Climb into the attic and clear away any insulation from around the hole. After inspecting simply snap back on the top vent cap. Next make sure you have one of the new roof exhaust vents on the roof and properly sealed.

How to install a bathroom fan vent in the soffit. If needed place coupler inside to funnel air to the cap. First head up to your attic and determine where you want to install your roof vent. This old house general contractor tom silva shows how to properly install a roof mounted bath fan vent.

In some cases we can t do the installation. Locate the drill bit. Planning is an important phase. I see many questions about leaking bath exhaust vents.

Included in each box is a coupler to connect the vent tube. 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. Slide the vent under the shingles so they cover the top half of the vent flange. Next make sure it is securely fastened on both ends of the pipe.

Cost to install bathroom fan. A proper inspection keeps us away from future disappointments.