#roof  a protective covering that covers or forms the top of a building
  supertype:  protective_cover__protective_covering__protection  a covering that is intend to protect from damage or injury; "they had no protection from the fallout"; "wax provided protection for the floors"
  subtype:  curb_roof  dome  gable_roof  hip_roof  housetop  slate_roof  sunroof  thatched_roof  tile_roof  vault
  part:  eaves  roof_peak
  part of:  edifice__building  a structure that has a roof and walls and stands more or less permanently in one place; "there was a three-story building on the corner"; "it was an imposing edifice"

No statement uses or specializes roof; click here to add one.