Best Roof Vents 2021 – Forbes Advisor


Entire quarries are built around the ventilation of the attic and roof. If you’re feeling a little overwhelmed with the type of roof vent your home needs, you’re not alone. Here are some factors to consider when deciding which roof vent is best for you.

Calculate air flow requirements

First, determine how much ventilation your home needs. Ideally, your roof should have at least one square foot of ventilation, divided between the intake and exhaust vents, for every 300 square feet of attic floor area. The amount of ventilation per vent is expressed as net free area, or NFA, and will be indicated in product descriptions.

To calculate your ventilation needs, multiply the length and width of the attic to determine the total area of ​​the attic. Divide the total by 300. This number is the total NFA that your attic needs, including intake and exhaust. Divide the amount in half to determine how much of each you need.

Appearance

Consider how the new vents will affect the appearance of your home. Now that you have determined the required net ventilation free area for your roof, you can determine from the product descriptions how much of a particular type of ventilation you need.

Each type of vent has unique appearance qualities. Ridge vents may be barely noticeable from a distance and may not affect the appearance of your home at all, while turbine-style vents will be highly visible from the street if not intentionally placed out of sight. Some homeowners prefer the appearance of having turbines or other prominent vents as an accent.

Electric roof vents and box vents have low profiles and are relatively unobtrusive, while gable vents can add a touch of style by breaking up a large, unbroken liner field.

Weather

The weather in which you live can determine which vents are best suited for your home. Low profile ridge vents and box vents are often the choice of homeowners and builders in locations where high winds are likely.

Homes in locations with high humidity may consider gable ventilation as the best option for minimizing the number of potentially vulnerable holes in the roof.

Electric vents will provide the greatest benefits in hot climates where the decrease in the amount of hot air in the attic is greatest.

Durability and guarantee

As with most things, you’ll want to choose a ventilation system that is worth the money. A long warranty is a good start. After all, ventilation should, at the very least, last as long as a new roof installation. But, in addition to the length of the warranty, make sure you understand exactly what situations and parts the warranty covers. This will give you an idea of ​​the manufacturer’s confidence in the durability of the product.

Talk to a professional

The best way to determine which roof ventilation system is best for you is to speak to a roofing contractor. They will be able to determine your roof’s ventilation needs and will likely offer you a selection of options.

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