The soffit is the horizontal underside of a roof overhang, and the fascia is the vertical board running along the roofline where gutters attach. Together they protect the rafters and provide ventilation.
You'd see this when CRM Services inspects a 1985 home in Hazel Dell, WA and finds 40 feet of north-facing fascia is soft with rot.
Soffit and fascia rot is extremely common in the PNW.
How do I know if my soffit or fascia is rotting?+
Look for peeling/bubbling paint, soft wood, dark staining, or gutters pulling away from the house.
Do I have to replace both at the same time?+
Not always — but if one is rotting, the other is usually close behind, and labor is similar.
Talk to a real contractor.
Free onsite consultation and a line-item estimate you can actually read.