SCHAEFER-DUER RESIDENCE Considered a passive-solar designed home, the Schaefer-Duer residence barrel-vaulted roof shed sunlight into the courtyard space between the two wings. Sunshades on the southern windows block intense summer sun but allow the winter sunlight to penetrate deep into the adjacent rooms.       BY TYPE / RESIDENTIAL KOSTOVOL RESIDENCE HATFIELD WRIGHT RESIDENCE LAWRENCE RESIDENCE ROOSENBURG RESIDENCE SCHAEFER DURER RESIDENCE K2 RESIDENCE PUTNAM SQUARE