Most homeowners know that their attic and roof are vented. Perhaps you have a fan mounted in the eaves of your home or a ridge cap running across the peak of your roof. You may not know why all of these components are essential, but they help with properly ventilating your house.
Proper roof ventilation is essential to the longevity of any roofing system. The Bealing Roofing team has put together some frequently asked questions to help you understand the importance of roof ventilation.
What Does Attic Ventilation Do?
Attic ventilation helps keep air flowing through your attic. Ventilation allows outside air to flow through and out of your attic, removing excess heat and moisture from your attic. Air is pulled in via soffits and eaves and exhausts through the roof at your ridge cap, also called a roof vent. This creates the correct balance of air in your attic and plays a vital role in keeping your home comfortable.
How Much Ventilation Do You Need?
Most roofs are under-ventilated. Many people are not familiar with how much roof ventilation they need. The FHA recommends you have 1 square foot of exhaust for every 300 square feet of attic space. Your local roofing contractor can help you determine if you have enough.
What Happens if There is Not Enough Ventilation?
Lack of ventilation can lead to several problems in and around your home. A lot depends on the climate you live in, but here are a few areas where you may face issues without proper ventilation.
1 – Attics
One of the problems you will face with a lack of ventilation is a sweltering attic. With no air moving through this space, temperatures can spike unbelievably here. This heat will then transfer into your living space. During the summer, this will lead to higher energy costs to cool your home.
2 – Shingles
As your attic heats so will the shingles on your roof. The heat in your attic will transfer back to the roof itself. This will cause shingles to become overheated, frying them, and shortening their lifespan.
3 – Wood and Walls
The heat transfer from a superheated attic can also warp the framing inyour attic. Once the attic framing warps, this will transfer to your walls and door frames. As they warp, you will see paint and wallpaper on your walls start to blister.
4 – Moisture Build Up
Summertime heat is not the only issue. During the winter months, steam from your shower and clothes dryer can all get trapped in your attic as it rises. In the attic, it will condense. This condensation will drip back down into your insulation. This trapping of moisture from condensation will lead to the growth of mold and mildew.
This moisture can also form on your eaves and soffits. When this happens, moisture is driven back up under your roof, forming ice dams.
Having your roof properly ventilated is the first step in keeping your home comfortable and damage-free. Bealing Roofing & Exteriors, Inc. has the expertise to help ensure you have the correct ventilation and if you don’t, make the necessary upgrades to your roofing system.