Soffit is a funny name, but it’s actually based on the French word for “a thing fixed underneath”. And this is exactly what it does; it’s the underbelly of a roof, where any overhang, such as a roof, uses a soffit material as a board affixed underneath it.


A soffit is one of the most neglected but ultimately important parts of a roof. This is why roofing and window installers, like Woodbridge Home Exteriors, feel that it’s a good idea to educate homeowners about what it is and what it does for your home.

Why Do You Need a Soffit?

The soffit isn’t just decorative; it has a function. Mainly, it’s to ventilate your attic. It does this by passive ventilation, as soffits have vents or “holes” in them that allow air to cycle in and out. By doing so, it keeps things in your attic dry and prevents the moisture in warm, humid air from promoting rot and mold growth.

One advantage of a soffit’s ventilation method is that it’s normally present along the entire roofline, not just on one side. Other passive ventilation methods for the attic, such as gable or hood events, only ventilate in one area. This means that some parts of your roof may already be rotting and you won’t even know it. A soffit, by contrast, distributes ventilation evenly.

Are There Other Types of Soffit?

There are several types of soffit depending on the material. Currently, Woodbridge Home Exteriors, your roofing and replacement windows contractor, offers vinyl for soffit, which makes for durability and resistance to water. Aluminum is cheaper, but less durable, while wood is often more expensive and susceptible to rot and decay.

Soffit also comes in two varieties: non-vented or vented. The first is great to ventilate a large amount of attic space, while the second is great for smaller attics.

Woodbridge Home Exteriors is one of the area’s most reliable pros for roof and replacement windows. You can reach us at (800) 728-3502. We serve Waco, Killeen, Dallas, and nearby TX areas.