How to Install a Wide-Angle Skylight

Cover the viewing shelf with 1/2-inch plywood followed by a layer of drywall. The plywood adds structural support and keeps heavy objects and sharp elbows from breaking through the drywall. The shelf can also be finished with wood, marble or solid-surface material. Cover the exposed framing around the inside of the skylight with 1/2-inch drywall. Protect the drywall corners with metal corner bead, finish the surfaces with paper tape and joint compound and then apply a fresh coat of paint.