If you are considering either installing a new exhaust vent on your roof or attic, you may want to carefully examine your options to make sure that your new system will be the most efficient and appropriate exhaust vent for your home. Below, you will find basic descriptions of the 3 overarching types of roof exhaust vents. Each of them has both its own positives and corresponding negatives.
The first type of roof vent that you will want to be aware of is what is known as a ridge vent. These vents are so-named because they sit at the very top of your roof—at the ridge—and allow warm air to escape from your home’s attic. These vents are nearly invisible to the naked eye, due to the fact that they are camouflaged to appear as a part of the roofing shingles at the top of the roof. These vents are the most popular choices for residential homes with shingled roofs. Since warm air rises, air is naturally pulled from attics outward into the outside without allowing air to flow into the house from outside. This is a popular and efficient option for venting your home.
A second type of ventilation system for your roof is known as a power vent. This type of vent uses an electric powered fan to move air out of your attic and into the surrounding air. This type of vent typically uses both a thermostat and a humidistat in order to maintain both a specified temperature and humidity. While this is a very convenient option to have in your home, and one that will ensure that your home is regulated the way you like it, it also comes at a cost.
Any time that electricity is involved to power a fan, you will have to pay for it in energy costs. So, while this may be a good option for you if you are not worried about associated energy costs, it is definitely something to be aware of before you make the decision to install power vents.
Finally, static vents are yet another type of exhaust ventilation option for cooling your attic and regulating both the temperature and humidity of your home. Static vents are simply openings in the walls of your attic that allow air to flow in and out when appropriate. They are typically opened or closed manually through the use of louvers, wooden slats, small windows or wind turbines.
Static vents are a popular option due to their relative ease of installation and their low cost of operation. On the other hand, these vents have a higher risk of air blowing into your home from outside than any of the other options listed above. As a result, these vents can actually be counterproductive if you forget to close the vents when it is cold, windy or rainy. Still, if used properly static vents can be a great option.