Remove existing roofing to bare wood sheathing and dispose of properly. Install 30 squares of standing-seam metal, formed on site into 16-inch panels using factory-enameled roll steel; double-lock all seams. Use custom brake-bent flashing from same material for drip edge and all flashing at roof-wall intersections. Assume a 5-square hip roof; custom flashing at two average-sized skylights; and custom cap treatment at vented ridge. Apply over new felt underlayment; use ice-and-water membrane at eaves, valleys, and all penetrations.