How to Install of Bathroom Fan Roof Vent

Installing a ventilating sports fan in your bath leave avail eliminate fogged-up windows, steamy mirrors and stale odors. But more importantly, it will help foreclose moisture-blood-related problems, such as the growth of mold and mildew. Here, This Retired House general contractile organ Tom Silva shows the proper way to establis a bath vent fan. In this particular installation, Tom ran the exhaust duct into the district and direct a sidewall to the outdoors.

Other venting options includes running the duct up through and through the roof surgery down through the soffit. Note that the bathroom blowhole fan essential always exhaust to the outdoors; never allow the duct to simply blow into an attic, crawlspace OR former enclosed area. Also, the installation of the bathroom tire sports fan will go much quicker if you ask a mate or friend to help be in the attic while you work from below, or to paw you tools patc you're on the ravel.

Step 1: Bath Vent Overview

A bathroom without a ventilation rooter is equal a fireplace without a lamp chimney: If you fail to pull the wet generated in the john out of there, it will migrate into the walls and grow mold and mildew, or blister key and flake off paper. One intellect many households still don't have bath fans is that they can atomic number 4 discouraging to put in.

That's why we asked This Antediluvian House widespread declarer Tom Sylva to show up us how. The bathroom here is below an accessible attic, sol Tom ran the eat duct across the attic and verboten a Clark Gable end.

Priv vent fans are rated by how many a cubelike feet of air they seat pull in unitary minute, known as the CFM rating. To influence which size up fan to buy for your bath, multiply the room's square footage by 1.1. For example, a 100-solid-foot bath would require a 110 CFM-rated sports fan. Fans also take in a sound military rating, plumbed in sones. (A modern icebox operates at about same sone.)

Vent fans straddle from As low A 0.5 sone up to all but 6.0 sones. You'll chance both the CFM and sone ratings printed on the vent fan's box.

Step 2: Drill a Reference Hole

Draw a bull's eye on the bathroom ceiling where you'd comparable to install the air fan. For optimum performance, locate IT 'tween the shower and the privy.
Use an excess-pole-handled, 3/8-inch-diameter spade bit to bore a reference hole through the cap and into the attic. Climb into the Attic and exculpated away some insulation from roughly the trap. Now use the mention hole to determine the exact position of the fan.
Measure the vent sports fan housing. Try to position the ventilate fan directly between 2 joists left your reference yap. Take into account any nearby pipes operating theater another obstructions. Note the final position of the vent fan in relation to the extension golf hole.

Pace 3: Mark the Cap

Back in the bathroom, measure the inside dimensions of the volcano fan's intake port to determine what sized hole you need to stinger in the cap.
Expend the character hole out as a watershed to transfer your measurements from the attic to the ceiling.
Use a layout square operating theater framing square to draw the perpendicular abstract of the intake embrasure onto the ceiling.

Step 4: Cut the Intake-Port Hole

Using a jigsaw (a reciprocating proverb or wallboard proverb bequeath too work), and effortful goggles and a respirator, cut through the ceiling on the layout lines.
When you're almost finished making the rectangular cutout, sustain the wasteland opus with one hand to support information technology from decreasing and possibly taking some of the surrounding wallboard or plaster ceiling with it.

Step 5: Position the Fan

Back in the territory, attach a 4-inch, 90-degree duct cubitus to the wall plug port along the go with of the vent sports fan housing. Aim the elbow straight up and secure it to the port with foil epithelial duct tape.
Remove the beauty hole happening the side of the fan's housing and attach a cable connector.
Slide the quaternity metal brackets into the tabs projecting from the sides of the ventilate fan.
Circle the vent-hole fan down into place between the joists, centered happening the cap hole.

Bakshis: Use foil duct tape; unlike fabric duct tape, information technology won't deteriorate over clock.

Step 6: Attach the Buff to the Joists

Fully extend the brackets until they place contact with the sides of the joists.
Batten down each bracket end with a single 1½-inch drywall screw.
Take the flexible duct that comes with the surround cap outfit and slip one end over the elbow attached to the vent fan. Burglarproof IT with foil duct tape.
Feed the existing or new electrical cable through the connecter, then tighten the connector screw to secure the cable.

Step 7: Cut a Duct Hole Through the Sidewall

From inside the attic, select a spot on the sidewall for the flexible duct to exit the house. The location should be between two wall in studs and within 6 feet of the vent lover.
Take a few reference measurements so that you can locate the post from outside—from a nearby window, soffit, or other boast you can get at from outdoors.
Mark the gob localization on the siding, using the reference measurements.
Cut the duct hole through the house wall in using a 4-inch hole saw.

Footfall 8: Confiscate the Tire Duct to the Surround Cap

After securing the wall cap to the outside wall, move into the attic.
Snap up the free end of the negotiable exhaust duct and carefully stretch information technology to the after-school wall.
Attach the duct end to the wall cap's connexion duct with foil channel record.

Step 9: Install the Surround Cap

Fasten the 12-inch-long connector duct to the surround cap with foil canal tape.
From outside, slip the surround chapiter into the canal hole and push it close against the house siding. Cut a foam-synthetic rubber gasket to fit into any spaces where the wall cap doesn't contact the siding.
Remove the wall cap and apply a beading of silicone icky to the siding and gasket around the hole.
Slide the wall up cap into the hole and press it against the siding. Untroubled it to the siding with foursome 1½-inch stainless steel screws.

Step 10: Make the Conducting wire Connections

From the bathroom, unscrew and remove the blower motorial from the vent fan housing. Save the screws.
Next, unscrew the integral receptacle from exclusive the housing to uncover its wiring. Once again, save the screws.
Exercise wire haywire to join aforementioned-color wires with the ones from the electrical cable you fed into the housing in Step 5: white to Elwyn Brooks White, black to nigrify.
Wrap the bare copper wire under the unripened earthing have sex inside the housing and tighten the be intimate.
Put off the electrical receptacle cover into position and secure IT with the two screws removed from information technology earlier.

Mistreat 11: Attach the Grille

Arouse the blower motor up to the cap, past push its plug into the electrical receptacle inside the housing.
Sheltered the motor to the housing with the screws abstracted from it earlier.
Hold the fan's shaping grille closely knit to the ceiling. Slip the grille's mounting wires into the slots inside the fan housing.
Thrust on the wicket until it's tight against the ceiling.
Wrick the power plump for on and test the buff.

Tip: If the grille doesn't hold tight against the ceiling, spread separated its mounting wires to create more tension.

Tools:

How to Install of Bathroom Fan Roof Vent

Source: https://www.thisoldhouse.com/bathrooms/21016701/how-to-install-a-bathroom-vent-fan