Selecting Roof Vents for Your Home

Since attic ventilation is critical to saving energy and properly heating or cooling your home, it’s important to select roof vents that are both cost effective and efficient.

The best way to ensure that your attic is properly ventilated is to hire a roofing professional to assess your existing vent structure and recommend roof ventilation products. However, if you’re a do-it-yourselfer, you should learn ventilation basis before purchasing attic vents.

Understand Roof Vent Options Before You Buy

1. Proper ventilation requires both intake and exhaust vents. Intake vents allow an infusion of fresh air into your home, and exhaust vents help air to leave the attic. You need a combination of these two types to ensure optimal air circulation and minimal condensation.
2. Survey your venting options before making a purchase. You’ll find a variety of the following vent types:

• Soffit vents—These vent openings are typically screened, and are located on the underside of your home’s eaves (in the attic floor). Soffit vents allow an influx of fresh air, which rises and flows out through vents in the roof peaks. Screens are a good idea if you live in a region prone to insect infestation.
• Gable vents—Placed on roof peaks, these louvered vents promote warm air exhaust.
• Static vents—Installation of these inexpensive turbine or louver vents involves removing several portions of your roof shingles, as they’re typically placed in rows. These vents are effective at moving air, but can leak if they’re not properly installed and regularly inspected.
• Wind-driven vents—Mounted on a rooftop or installed against a gable, these vents are driven by natural wind rather than an electrical source. When it’s breezy, the vent will circulate air in a stuffy attic.
• Powered vent units—These electric- or solar-powered vents usually include a thermostat, and will automatically come on when your attic or home temperature reaches a specified point.

3. Determine the number of vents your home needs to make it a worthwhile investment. Recommended vent number depends on your roof’s square footage, and is often based on a 1/300 rule. This means that you should have one square foot of vented area per 300 feet of attic space. If your home’s attic measures 1,500 square feet, you’ll divide by 300—and conclude that 5 square feet of venting is sufficient. Remember, over-installing vents is not recommended, since too many vents increase your chance of damaging attic leaks.

Look to the professionals when you’re ready to efficiently apply roofing ventilation. LGC Roofing professionals are experts at making your home energy efficient, affordable and ready to withstand the elements. Tune into our next blog for more information on vent pricing and energy savings.

Tips for Ventilating Your Roof Space

While you may know that attic ventilation helps control indoor temperature and saves energy costs, you may not realize that improper ventilation can damage your roof, create ice dams and reduce your roof’s overall lifespan. So, before preparing to replace or repair your roof, have a qualified professional assess your ventilation system.

Sufficient attic ventilation provides a variety of benefits, including:

• Healthy, natural airflow in and out of your home
• Improved air conditioning and heating efficiency
• Prevention of condensation buildup that damages roofing infrastructure and ruins personal belongings
• Prevention of mold, mildew and wood rot caused by continual condensation buildup
• Prevention of wood cracks caused by extreme attic overheating
• Prevention of costly, warped siding replacement due to intense condensation

It’s a common construction mistake for a roof to have less than adequate venting. In fact, the American Institute of Architects estimates that nearly 90 percent of American homes have unacceptably high moisture levels. Roofing ventilation is a helpful way to balance those levels, but with a wide variety of vents to choose from (gable, ridge, static and soffit), it’s important to consult an expert before you begin installing vents on your own.

Remember, however, that too many roof vents can open your home to leaks or seam malfunction—especially during extreme weather. Talk with a professional to determine how many vents your roof needs—and where they should be installed. A general rule is one square foot of attic ventilation for every 300 square feet of ceiling space, but recommendations may vary based on your home’s architectural design.

Call LGC Roofing today to schedule an attic ventilation assessment or inquire about roof vent installation. After all, high-quality turbine venting is a cost-effective way to improve your home’s energy efficiency—and make your living space more comfortable.

Proper Roof Ventilation

Roof ventilation can extend the life of your roof, if properly installed…

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