Solar in Charleston starts in the Kanawha Valley, where the hills decide the daylight before the roof does. A house on the valley floor can lose the afternoon to a ridge. A house in South Hills may face a clear gap along the river or may stare into the next slope. Older roofs have to be sound enough for snow, ice, and a long damp season. Say hill or bottom, and say which way the roof faces.
Shade is the mountain and the trees on it. Even a south roof goes dim when the ridge stands up. Chimneys and steep gables on older houses break the clear area. Fog does not remove the need for a dry deck, and it does remind you the surface stays wet. Describe dormers, valleys, and the slope behind the house. A picture from above will miss a soft board and will miss the hour the sun drops behind the hill.
Do not cover a roof that leaks, mosses over on the shady face, or needs replacement. Attachments have to handle ice. Metal and asphalt are both common here and they are not the same attachment. If you know the attic is stained, say that first. Several old layers are a reason to stop and talk about the deck. The Kanawha Valley is not a high desert sky. It is a narrow sky over older houses.
Electrical panels in these houses are often older and tucked low, sometimes in a basement that has been wet. The path from a roof on the uphill side is awkward. Interconnection has to be accepted before the system runs. If the service is already tired, say so. Keep the call on shade from the ridges, the condition of the covering, and that path.
Bring the hillside, the roof direction, and what blocks the sun. Solar in Charleston is a Kanawha Valley site question: short days against the ridges, ice, and an older West Virginia roof. Call the number on this page.