How Does Roof Ventilation Work?
It all starts with proper air flow in the residential roof ventilation system. Air is drawn in through intake vents usually found at the edge of the roof or in the soffits, and air is pushed out through exhaust vents located near the peak of the roof. This natural air flow also helps to keep the attic at a more even temperature and prevents moisture from becoming trapped. The most effective ventilation of residential roofing systems occurs with a properly balanced intake and exhaust ventilation.
Extreme heat can shorten roof life
In the summer time, if there is not good ventilation, the attic temperature can be much higher than the outside temperature. Too much heat is an ever-present danger to roofing materials. Too much heat ages them prematurely and causes them to crack or lose their protective properties.
High attic temperatures make air conditioning systems work harder, use more energy, and cost more in utility bills. Good ventilation keeps the attic cool, which helps the roof perform better and makes the house more comfortable inside.
Moisture - The Silent Killer
Water does not only come from rain. Typical activities such as cooking, bathing and doing laundry can cause moisture to rise up into the attic. This moisture is trapped in and causes condensation on wooden roof structures when there is inadequate ventilation.
Any moisture that becomes trapped will cause the mold to grow and rot the wood and damage the insulation and weaken the structure over time. Good airflow can help remove excess moisture before it can cause long term problems .
Conclusion
Good roof ventilation is a vital piece of a long-lasting, healthy roofing system. Proper ventilation removes heat, controls moisture, protects roofing materials and helps make your home more energy efficient by providing constant airflow through the attic. Regular inspections and proper maintenance can help keep your ventilation system running at peak performance, keeping your home comfortable and your roof in tip-top shape for years to come.
