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Common Attic Ventilation FAQs

Summer is almost here, and it’s time to make sure that your roof’s ventilation system is up to snuff!

Summer is almost here, and it’s time to make sure that your roof’s ventilation system is up to snuff! Your roof and attic ventilation may not be at the front of your mind, but it should be. This system is critical for maintaining your homes temperature, moisture levels, and in preventing winter damage. Despite this importance, many homeowners and contractors don’t know enough about these vents, which is why we’re sharing these five important facts.

The Purpose Of Attic Ventilation

Throughout the year, the ventilation of your attic serves a range of purposes. In the summer it helps to fight heat buildup by allowing hot air to rise through and out of your home more effectively. As the heat rises through the day, it can become trapped in an improperly ventilated attic and cause the entire house to stay hot.

Winter Benefits

In winter the benefits include preventing moisture buildup and the formation of ice dams. These two are highly crucial as they help ensure the long term health of your roof. In winter, the average home creates an excess amount of vapor. When proper ventilation isn’t available, and the heat of summer isn’t there to allow for drying, this vapor can freeze too quickly and lead to water damage, mold, and mildew. Also, the prevention of ice dams is critical as they can cause severe damage to your gutters and your siding.

The Different Types of Ventilation

Depending on the size and style of attic you have you may find that your space needs a unique system for ventilation. It’s not a one size fits all method. In general, you need a carefully balanced intake and exhaust system. Most homes will need the intake system to bring in more air than the exhaust system pushes out; this helps to ensure that moist, warm air pushes up and out of your home and not lingering.

How Many Vents Should Your Home Have?

More is not always better when it comes to ventilation. Sticking with an as-needed number of same type exhaust fans is still better than mixing. Because they must be relatively robust, mixing types can lead to short circuits.  

Phil DiBello Family Roofing Is A Leading Roofer of Howard County!

Since 1979, Phil DiBello Family Roofing has been proudly installing roofs, siding, gutters for homeowners in Howard County as well as Baltimore and Carroll County. Call us today at 410-752-ROOF (7663) or email us at for your free estimate and let us know how our family and make your family’s home needs our top priority! Remember to follow us on Facebook, Twitter, and Pinterest to stay up to date on everything DiBello Roofing.

To stop down and visit us in person for your free written estimate, we are centrally located at:

1440 East Clement Street Baltimore, Maryland 21230


At Phil DiBello Family Roofing, we rely on our strong backbone of experience and knowledge to maintain our reputation

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