The Collaborative International Dictionary of English v.0.48:

Roof \Roof\, v. t. [imp. & p. p. Roofed; p. pr. & vb. n.
   Roofing.]
   1. To cover with a roof.
      [1913 Webster]

            I have not seen the remains of any Roman buildings
            that have not been roofed with vaults or arches.
                                                  --Addison.
      [1913 Webster]

   2. To inclose in a house; figuratively, to shelter.
      [1913 Webster]

            Here had we now our country's honor roofed. --Shak.
      [1913 Webster]

WordNet (r) 3.0 (2006):

roofed
    adj 1: covered with a roof; having a roof as specified (often
           used in combination); "roofed picnic areas"; "a slate-
           roofed house"; "palmleaf-roofed huts" [ant: roofless]

Moby Thesaurus II by Grady Ward, 1.0:

44 Moby Thesaurus words for "roofed":
   armored, cased, ceiled, cloaked, clouded, coated, coped, covered,
   covert, cowled, curtained, eclipsed, encapsulated, encapsuled,
   encased, enveloped, enwrapped, filmed, floored, hooded, housed,
   loricate, loricated, mantled, masked, muffled, obscured, occulted,
   packaged, paved, roofed-in, screened, scummed, sheathed, shelled,
   shielded, shrouded, swathed, tented, under cover, veiled, walled,
   walled-in, wrapped