#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 of:  #edifice
  part:  #eaves__eave  the overhang at the lower edge of a roof
  part:  #roof_peak  the highest point of a roof

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