Patents Assigned to Firma Icopal Baustoffe
  • Roof cover sheet material
    Patent number: 4315392
    Abstract: A roof covering material comprising a sheet material juxtaposed to a spacing means, said spacing means being in the form of a mat of resilient non-woven wires, threads, or fibers, said mat having a high air volume.
    Type: Grant
    Filed: October 11, 1979
    Date of Patent: February 16, 1982
    Assignee: Firma Icopal Baustoffe
    Inventor: Erik Sylvest