What is a fascia, and how is it used in building design?

Fascia is a flat horizontal band or board that is attached to the lower edge of the roof's rafters or trusses on the exterior of a building. It's commonly used to conceal the edges of roofs, provide a surface for the attachment of gutters, and enhance the building's appearance. Fascia helps to protect the roof from debris, wind, and water, enhancing the building's aesthetic value. Moreover, it helps to support the guttering system, which drains the water off the roof and away from the building. It is often made of wood, PVC, or metal, depending on the design preferences and budget of the owner.

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