Solar in Wisconsin has to live with months of snow, ice at the eaves, and a roof already tired from that cycle. A steep metal slope sheds. A low asphalt slope holds a blanket until it clears. Open farm ridges see wind that tries to get under the rails. Wooded lake lots lose the day to pines on the south. The deck and the rafters come before any talk of modules.
Say what stands south of the ridge: a barn, a pine break, a neighbor. Winter sun is low and may clear crowns that block July, or it may not. A hip, a gable, and a pole-barn roof are different mounts. Snow guards and the place a sliding sheet can land matter above a door. The surface has to take fasteners without turning the next thaw into a leak at the ice line.
An array changes where snow sits and where melt refreezes at the eave. Ask that question on a house that already ice-dams. Rails have to reach structure, not just shingles or a thin metal panel. If animals already use the attic, say so. Marked glass still belongs in the description, but snow load and uplift lead. If the roof is due, replace it in an order that installs once.
Long summer days and snow-covered winters are the two halves of the year here. Gear has to accept both. An inverter needs air; a closed attic is a poor closet. Say if the main panel is old, small, or already full. A barn and a house may not share a panel, so say which building you mean. Say how snow will be cleared, or say that it will not.
Lead with the roof, the shade, and whether ice already dams the eaves. Name the town and whether the building is a house, a barn, or a cabin. Wisconsin snow will sit on whatever you ignore. Call the number on this page.