Traditional Florida vernacular architecture appears in Clarence Rutland's home, built on Sanibel in 1913, with hard Florida pine construction, piers to prevent flooding, a covered porch, high ceilings, large windows, a wide central hallway to capture breezes and expel heat, a galvanized metal roof wider than the structure for protection from sun and tropical rains, and gabled ends that reinforce the roof against hurricane winds. In 1952, seasonal Sanibel resident Dr. Walter Walker commissioned internationally renowned modernist architect Paul Rudolph to design a guest house for Walker's West Gulf beach property. Built with off-the-shelf materials, the Walker Guest House reduced the elements of a traditional house to a minimalist form, with hinged plywood walls opened and closed by rope and pulleys counterbalanced by red concrete balls so residents could open the house to gulf breezes. In 2012, it was voted the top residential building in Florida in a competition conducted by the Florida American Institute of Architects. Seasonal resident Gustel Kiewitt designed and oversaw construction of Saint Michael & All Angels Episcopal Church, using the Lamella roof system of curved wooden ribs joined with platelets and bolts to support one another and form intersecting transverse arches, creating a dramatic interior that resembles the hull of an upside-down ship; his later work included the Houston Astrodome and New Orleans Superdome.