zinc-roofedhttp://www.oed.com/dictionary/zinc-roofed_adj%3Ftab%3Dmeaning_and_usezinc-roofed, adj.
First published 1921; not fully revised

zinc-roofedadjective

  1. 1899–
    1. 1899
      The zinc-roofed bungalow.
      Blackwood's Edinburgh Magazine February 312

Originally published as part of the entry for zinc, n.

zinc, n. was first published in 1921; not fully revised.