The appropriate level of roof ventilation is a critical component of your roofing system. It is one the major causes of both weather and non-weather-related roof damage. Improperly installed or inadequately chosen ventilation methods can seriously shorten the lifespan of your roof. Did you know that an average home produces 4 to 5 pounds of water vapor per day! If your roof isn’t properly ventilated, all that vapor has no place to escape. As a result, the vapor condenses on the wooden substructures beneath the roof and can cause them to warp and even mold. When warping and mold occur, your entire roofing system may eventually become compromised, and your health may be at risk.
Quality roofing ventilation should consist of an intake AND an exhaust. This is because the difference in temperature between the inside and the outside of the roof can be quite drastic. To achieve a consistent level between these two extremes fresh air is pulled from the outside in (the intake) and then ventilated along with the vaporized air to the outside (the exhaust). Having only an intake or an exhaust is basically the equivalent of having NO roof ventilation. In some cases, it can actually cause more damage to have a single source of ventilation than to have none at all.
Types of Roof Ventilation
There are many methods of providing for adequate roof ventilation including:
- Soffit vents
- Gable-end vents
- Ridge vents
- In-roof vents
The best method depends upon your unique needs and roofing system. Consulting with an experienced and reputable roofing professional like Roofing Solutions, will help you make the best choice(s) and ensure they are expertly installed.