A fascia board is a long straight board that spans the perimeter of a roof. Making up the roofline, the board is affixed directly to the lower parts of the trusses and is made to support the lower edge of the bottom tiles of a roof. Normally, fascia boards are made from composite timber comprised of a mix of plastic, wood chips, and sawdust. This material is bonded with an epoxy resin. The material is environmentally friendly as it offers such benefits as rot-resistance and protection from fading. It is also less likely to degrade.
How the Fascia and Soffit Work Together
In order to understand the role the fascia board plays, you also have to be familiar with the soffit board. This is the board that is seen on a home from street level. Soffits can be ventilated to permit airflow into a roof area. In addition, ventilation can be supplied over the fascia board. Most homeowners prefer the latter. According to roofers in Sidcup, ventilation is needed as it prevents condensation that can form in the roof void and lead to timber decay.
An Even and Clean-Looking Trim
The fascia also serves as a support for the drain pipes and gutters, thereby preventing dampness from extending inside a home’s or roof’s interior. Aesthetically serving as a trim, the fascia gives the roofline an even and clean look. Because the fascia is noticeable, it is a good idea to paint it so it can blend with the hues and tones of the rest of the house.
You might say that the soffit closes the gap that exists between the fascia and roof of the house. Situated beneath the eaves, the soffit is an exposed surface and therefore is vulnerable to intense weather and leaking gutters. In order to reduce the incidence of decay, the materials used for a soffit are generally made to resist decay or continual exposure to heat and dampness.