Yes, it’s acceptable by code. Make sure both have a backdraft damper (flap).

Can you combine exhaust vents?

If you have two bathrooms that are close together and one has an exhaust fan and the other doesn’t, you might be wondering if you can tie a new exhaust duct into the existing one. Well, you can’t! You’d often blow air from one bathroom into the other, and local building inspectors wouldn’t approve it.

How close can exhaust vents be?

Combustion vents must be located at least 3 feet above any building opening within 10 feet. Non-combustion appliance vents should be located 3 feet from any building opening. Avoid locating exhaust vents within 10 feet above outdoor living areas (e.g. deck, patio, play yard)

Can you combine bathroom and kitchen exhaust?

Simply put, NO. You cannot (by code) and should not (by practical reasoning) share exhaust venting between a kitchen exhaust and a bathroom exhaust fan.

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.

Can you combine ridge and gable vents?

No way — that’s a prescription for disaster. Gable vents will alter the air flow around the ridge vent and, especially when wind is parallel to the ridge (at right angles to the gable), can actually reverse air flow through the ridge vent, pulling rain or snow into the attic.

Can you have both ridge vents and gable vents?

Do Gable Vents and Ridge Vents Work Well Together? The simple answer is: Not really. If your home features both ridge vents and gable vents operating simultaneously, you should think about sealing up the gable vents. Different types of exhaust vents actually prevent each other from working effectively.

How close can an exhaust vent be to soffit?

When Is It Better to NOT Vent a Bathroom Fan Through The Soffit? It is not a good idea to terminate the exhaust duct closer than 10 ft. of any air intakes, as this could lead to moist air coming back into the house. Generally, it is possible to position it so that this will not be an issue.

Can you vent an exhaust fan through soffit?

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Quote from Youtube video: But people always ask me why can't I vent out of the soffit. Well you can bet that the soffit this is the risk of venting of the soffit though is that the warm moist air that your bathroom fans or

Do bathroom exhaust fans need to 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. If you don’t have a duct leading to a sidewall vent, call a professional for help.

Can you vent bathroom fan through gable end?

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 do you install an exhaust vent on a roof?

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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.

What is a gable vent?

A gable vent is a type of intake vent that appears on homes with gable roofs. Gable vents are usually high up on the side of the house within the peak of the gable. Depending on the wind flow and direction, gable vents can also function as exhaust vents.

Can you have too many soffit vents?

You can’t have too much soffit venting, but it’s worth noting the minimum requirements. Usually, 4-in. by 16-in. soffit vents are rated for 26 sq.

Do you need soffit vents if you have gable vents?

Should I Add Soffit Vents? If your home is fitted solely with small gable-end vents or a ventilator high in the roof, you might want to consider adding soffit vents to increase airflow. These vents allow outside air to enter the attic at the lowest point of the roof—along the underside of the eave.

Are ridge vents better than gable vents?

The combination of a ridge vent along with continuous soffit vents gives you a flow through of air similar to the way a chimney works. Even without soffit vents, a ridge vent is much more effective than gable vents.”

What is the most effective roof venting system?

Soffit Vents (Most Popular Intake Vent)



Soffit vents are a favorite amongst home builders and roofers because they are unquestionably the most effective intake vent for the cost. If a home’s style allows for it, most new construction builders include soffit vents in their home’s blueprint.

Do you need roof vents if you have a ridge vent?

Some types of air ventilation systems rely on other pieces of equipment to work properly. While roof ridge vents can work alongside box vents or soffit vents, they also do not need these other vents to operate. Ridge vents effectively release moisture from your home, greatly reducing the risk of mold or mildew.

Should I add gable vents?

Gable vents are usually installed on the exterior wall of your attic in order to create proper air circulation during extreme climate conditions. In months of intense weather, the inside of your house can be regulated with heating and cooling systems.

How many vents should a roof have?

How Many Vents Do I Need? The general rule of thumb in these situations is of roughly one vent per every 300 square feet of attic area if the attic has a vapor barrier. If not, there should be one vent for every 150 square feet. You will need to have 1 square foot of vent area for every 150 square feet of attic space.

Where should a gable vent be placed?

Gable vents are installed in the gabled ends at opposite ends of the attic. They’re most effective when the vents align with the prevailing winds. This allows high air pressure on the upwind side of the home to push air into the attic, and low pressure on the downwind side to pull air out.