Whether it’s new construction or a remodel, a bathroom vent should always vent through the roof instead of an eave, overhang, or soffit. The point of a bathroom exhaust vent, or any vent really, is to remove hot, moist air from the house.

Should you vent a bathroom fan through the soffit?

A bathroom fan can be vented through soffit so that the warm air from the bathroom comes out through it and goes outside. However, It is important to keep in mind it can not be vented into the soffit, as this will lead moisture back into the attic.

Can you vent exhaust fan out the side of the house?





Can a Bathroom Fan Vent through a Side Wall? You can vent your bathroom fan through a sidewall of your house. In situations where you don’t have access to the eaves of your house and you don’t want to go through the roof, a sidewall is your best option.

Where is the best place to vent a bathroom fan?

The fan exhaust must vent directly to the exterior of the home. Do not put the vent termination in a roof overhang or soffit. Don’t put it on a wall near or under a roof overhang. The moist air that’s belched out by the fan can be sucked right up into the open soffit vents and be drawn into your attic.

Is it better to vent through roof or wall?

Also, heat and moisture naturally rise, and roof vents direct heat and moisture away from your walls. What is this? Venting through the roof is usually the best option if you have an attic since air intakes like soffit vents might tend to draw moist air into the attic.

Should bathroom exhaust fan be vented through the roof?

Vent your bath and kitchen exhaust fans through the roof through a special roof hood. Venting through a roof vent or exhausting them in the attic could cause moisture problems and rot.

Should bathroom exhaust fans be vented outside?





Bathroom fan installation requires outside ventilation. If the fan isn’t accessible through an attic, you’ll need to vent through a sidewall of your house. These types of ducts and vents are typically installed when the house is built.

How do you vent a bathroom fan through siding?

Quote from the video:
Quote from Youtube video: And push this right into place man I make this look easy we're gonna push that flange behind the siding that's right below it look at that huh. That's perfect we're gonna put some nails on the flange.

Where does the air from bathroom vent go?

The extractor fan (exhaust fan) removes humidity and moisture from the bathroom. The fan sucks in air from the bathroom and blows it out of through a vent that is runs behinds above the ceiling. It works in the same way that a kitchen exhaust hood does except moisture is being moved instead of smoke.

What is code for bathroom exhaust fan?

The model building codes adopted by most jurisdictions typically require bathroom ventilation to be provided either by an operable window (3 sq. ft. or greater) or by mechanical means – a bathroom vent fan (20 continuous or 50 cfm intermittent, vented to the building exterior.

How do you vent a bathroom through soffit?



Quote from the video:
Quote from Youtube video: Natural air flow from this office into your attic so to make sure that doesn't happen it's always better to use an insulated hose from your bathroom vent and connect.

Can you vent a bathroom exhaust fan through the wall?

If you want to vent a bathroom fan through an exterior wall, you will have to cut a 3-inch or 4-inch hole with a hole saw drill bit. If your exterior siding is vinyl or fiber cement, you will have an easier time cutting the hole.

Can you vent bathroom fan to gable vent?

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. Options for venting a bathroom exhaust fan include (best to worst): Through the roof or an exterior gable wall.

How far can you vent a bathroom fan?



Generally a 4 inch flex duct can carry a fan exhaust for up to 25 ft. Most codes require that.

Can you use PVC pipe to vent a bathroom fan?

PVC piping is an excellent material to use for venting your bathroom fan as long as the correct type of pipe is used. PVC creates a better seal than metal, so you won’t experience any problems with leakage as you could with using metal ducting pipes.

Can flex duct be used for bathroom fan?

Flexible duct is perfectly acceptable for a bathroom fan.

What size duct do I need for bathroom exhaust fan?

When sizing a vent fan, a factor to consider is duct size and length. Most 50 CFM fans will run well with 4-inch round duct. But as you get up into the higher CFM fans, duct size will have to be increased to 5- or 6-inch round duct.

Can I vent my bathroom fan into the attic?



Can I Vent A Bathroom Fan Into My Attic? No, you should not vent a bathroom fan directly into an attic. The problem with venting into the attic is that the moisture-rich air may form droplets on the wood sheathing, insulation, rafters, and ceiling joists, leading to mold growth.

How do you vent a bathroom fan through the roof?

Quote from the video:
Quote from Youtube video: Out first thing i want to do is remove some of the roof shingles so i can drill a hole all right now i'm going to measure the vent hood. It's five and a half inches.