There are several differences between continuous ridge vents and roof box vents. This can make it difficult to determine which will best meet your needs. By understanding the differences between them, you can make an informed decision regarding which is best for you.
Continuous Ridge Vents
Continuous ridge vents are installed at the peak of a roof ridge which lets warm air escape from an attic, almost as if it were a vacuum. You only need one continuous ridge vent and they are able to be used with vaulted ceilings. Continuous ridge vents are more expensive than roof box vents but since they are non-mechanical, there is no need for electric connections or concerns that there could be an electrical failure. It is best to use a continuous ridge vent on a shingled roof. Another benefit to continuous ridge vents is that roofing manufacturer warranties require 300 square feet of ventilation as opposed to 150 square feet in traditional systems, an indication of how efficient these vents are.
Roof Box Vents
Roof box vents are designed to work with open attics and are often called “low profile” vents. They are static, installed in a hole cut in the roof. They are non-mechanical and work best when used with soffit ventilation. The vent works by allowing natural winds and convection to move hot air and moisture out of the attic. You will more than likely need more than one in your roof, depending on the square footage of your attic.
Importance of Ventilation
If your attic is not properly ventilated, warm, moist air may mix with colder air inside your home resulting in condensation which can be damaging. You may notice that paint is peeling on the gable end exteriors or that your roof shingles are buckling. These are signs that you may have a ventilation problem. If the problem goes unchecked, you could begin to see water stains on ceilings as condensation begins dripping in from under the roof. Determining the number of vents you need if you choose not to go with a continuous ridge vent is not an exact science. You will need to determine the roof pitch, understand the climate, locations where vents may be located and where prevailing winds come from in relation to the position of your home.
RGB Construction can help you choose the right roof vent for your home. Give them a call today or fill out the easy form online to learn more.