There are few things that are more misunderstood about your home than the proper amount of attic ventilation. Essentially, all ventilation refers to is air circulation to minimize moisture levels and keep the air fresh.
There are a large number of homes that currently have too much moisture present. Understanding if your home could benefit from additional attic ventilation is something professional roofing contractors can provide. If proper ventilation is not present, serious roof damage may occur. Some of the myths and their truths, related to attic ventilation are found here.
Myth: More is Better
Just like selecting the right size AC unit or furnace for your home, you need to find the right amount of attic ventilation. If insufficient ventilation is present, it may lead to moisture issues in the winter months, as well as reduced efficiency in the summer. However, what many people don’t understand is that excessive ventilation can be just as dangerous.
Roof vents cause additional penetration of the roof, which is another potential vulnerability where a leak may occur. Some vents are required, but you don’t need to increase the total roof penetrations.
The best way to find the right amount of roof ventilation is by speaking with a pro. Generally speaking a 1:300 ratio is sufficient. This means that for every 300 square feet of roof space you need a single square foot of ventilation.
Speak with your Kansas City roofing professional to see if this ratio will work for your home. They will be able to evaluate the situation and determine the proper amount of ventilation.
Myth: Roofing Vents are Just for Warmer Climates
There are a number of people who also believe that roof ventilation should be increased for energy efficiency benefits during the warmer months. While proper roof ventilation can provide this, factors such as insulation, exposure to the sun and shingle color are much more important to total energy efficiency than the ventilation.
Myth: Warm Air is Removed during the Winter by Roof Vents
Since heat rises, many people believe that ventilating the attic will release warm air and make their heating system work harder. If this is happening, poor insulation is typically the issue. There is no reason for the heating system to send warm air into the attic. If you are concerned about this, then check the temperature of the attic to make sure it is near the outside temperature.
Schedule a Consultation to Learn more about Attic Ventilation
If you are unsure if your home has enough, or too much, attic ventilation, then it is a good idea to schedule a professional roofing inspection. The roofer will be able to determine what a home needs to be more efficient and ensure there is plenty of ventilation present in the attic.
Taking the time to learn about attic ventilation will ensure your roof remains in good repair.
Understanding the common myths will also help you understand what should be done to maximize your home’s efficiency.