flat roof

1 definition found

flat roof - Collaborative International Dictionary of English v.0.48 :

  Roof \Roof\, n. [OE. rof, AS. hr?f top, roof; akin to D. roef
     cabin, Icel. hr?f a shed under which ships are built or kept;
     cf. OS. hr?st roof, Goth. hr?t. Cf. Roost.]
     1. (Arch.) The cover of any building, including the roofing
        (see Roofing) and all the materials and construction
        necessary to carry and maintain the same upon the walls or
        other uprights. In the case of a building with vaulted
        ceilings protected by an outer roof, some writers call the
        vault the roof, and the outer protection the roof mask. It
        is better, however, to consider the vault as the ceiling
        only, in cases where it has farther covering.
        [1913 Webster]
  
     2. That which resembles, or corresponds to, the covering or
        the ceiling of a house; as, the roof of a cavern; the roof
        of the mouth.
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              The flowery roof
              Showered roses, which the morn repaired. --Milton.
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     3. (Mining.) The surface or bed of rock immediately overlying
        a bed of coal or a flat vein.
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     Bell roof, French roof, etc. (Arch.) See under Bell,
        French, etc.
  
     Flat roof. (Arch.)
        (a) A roof actually horizontal and level, as in some
            Oriental buildings.
        (b) A roof nearly horizontal, constructed of such material
            as allows the water to run off freely from a very
            slight inclination.
  
     Roof plate. (Arch.) See Plate, n., 10.
        [1913 Webster]