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It's understandable that roof ventilation is often overlooked, as most people are simply worried about their roof keeping their home dry. However, a well-ventilated roof can make life easier and better for those living beneath it. Proper roof and attic ventilation can lower heating and cooling costs, improve interior comfort, and grant longer life to roof shingles.
In the summertime, a properly ventilated roof allows hot air in the attic to escape, reducing the demand on your air conditioning system. In the winter, ventilation combines with good attic insulation to keep the roof surface cold, so that snow won't melt on the roof surface and then freeze to form ice dams along the eaves.
RJK Roofing Solutions installs and repairs ridge vents and other types of roof vents. We are Northeast Ohio's expert roofing contractors for roofing solutions that include roof repair, roof replacement and more. Contact us for a free quote for ridge vent installation in Cleveland, Mentor, Solon and throughout Ohio.
There are different types of roof vents and different strategies for achieving effective roof ventilation. Here's a brief overview:
Not always easy to see, the openings for a ridge vent are the continuous space on either side of the ridge cap
Installed along the roof peak, ridge vents are probably the most important vents in any "passive" (non-electric) roof ventilation system. Hot air that accumulates inside the attic rises by convection and escapes outside through ridge vents.
As hot air escapes, fresh outside air is drawn into the attic through soffit vents (see below).
On an asphalt shingle roof, ridge vents are usually covered by a layer of shingles. The warmest air in the attic rises naturally to the roof peak and escapes outside through the ridge vents.
Soffit vents may run continuously under eaves. Rectangular or circular vents may be installed in soffits where a continuous strip-type vent was omitted.
Soffit vents run parallel to the eaves along the soffit. These vents work with ridge and gable vents to promote good roof ventilation.
Installed along the eaves of the roof, these vents are usually in the form of grilles that run the length of each soffit.
By admitting outside air into the attic as warmer air leaves the attic through higher vents, soffit vents play a major role in effective roof ventilation.
If attic airflow is insufficient, your roofer may recommend a gable end vent such as the one shown.
Installed near the peak of a gable end, this screened vent can allow hot air to leave the attic or fresh air to enter, depending on prevailing breezes and temperature conditions.
Sometimes referred to as attic fans, PAVs come in several forms. Some are designed to be mounted on the roof, while others mount in the attic floor or the gable end. All PAVs contain an electrically powered fan (usually controlled by a thermostat) that exhausts hot air from the attic on hot summer days.
A PAV should not be necessary if a roof has properly sized and installed ridge and soffit vents. While a PAV will definitely exhaust hot air from the attic during hot weather, it consumes electricity, and can actually suck cooled air from the living space through leaks in the attic floor.
For this reason, many home energy experts recommend passive roof ventilation over active ventilation with a PAV.
When your attic heats up, the roofing underlayment beneath your roof shingles can also heat up, and, over time, become brittle and ineffective. By installing the proper attic ventilation, you can extend the life of your roof and save the expense of repairs and replacement. Proper roof ventilation will also reduce moisture and remove harmful mold and mildew, while helping to fight ice dams.
The specialists at RJK Roofing Solutions can help you choose the right type of roof vents for your home. We can repair or install roof vents and improve your attic ventilation.
Our professional roofing services, including roof repair, are available throughout Northeast Ohio, including Cleveland, Mentor, Solon and nearby. Call us at 1-440-427-3994 to get a free quote on any of your roofing needs.
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