What material do "fascia" boards cover?

Fascia boards are specifically designed to cover the ends of rafters or truss ends, which is significant for several reasons. These boards serve both a functional and aesthetic purpose. Functionally, they provide a protective barrier that prevents moisture and pests from entering the structural elements of the roof. From an aesthetic standpoint, fascia boards create a finished look along the edges of the roof, complementing the overall appearance of the building.

Other materials listed in the options do not align with what fascia boards typically cover. Rooftops refer to the main surface area of the roof where shingles or other roofing materials are applied, rather than the edge details. The walls of the structure and windows and doors pertain to different elements of construction entirely and are not associated with the purpose or placement of fascia boards.