Is fascia considered roof or siding?

Fascia is considered part of both roof and siding systems, as it sits at intersection where roof edge meets exterior wall and serves functions for both, though it is most commonly classified as trim that is part of roofing system. Fascia is the vertical board that caps ends of rafters and runs along roof edge, to which gutters are attached and under which soffit is installed, and it is typically included in roofing estimates because roofers install drip edge over fascia and need solid fascia to support gutters and ensure proper water shedding. In many building codes and insurance policies, fascia is considered part of roof system because it protects roof edge, supports gutters that manage roof water, and is installed as part of roof assembly. However, siding contractors also work on fascia, especially when fascia is wrapped in aluminum or vinyl that matches siding, or when fascia is replaced as part of siding replacement project. In terms of trade responsibility, roofers handle fascia when replacing roof because they have scaffolding and need to ensure drip edge and gutters are properly installed, while siding contractors handle fascia when replacing siding and wrapping trim. For homeowners, fascia is exterior trim that requires painting and maintenance similar to siding, but its primary function is roof-related. When filing insurance claim for storm damage, fascia damage may be covered under roof coverage if caused by wind or hail that also damaged roof.