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Weatherproof Roofing membrane and method for constructing the same

  • US 4,870,796 A
  • Filed: 11/16/1983
  • Issued: 10/03/1989
  • Est. Priority Date: 11/16/1983
  • Status: Expired due to Term
First Claim
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1. A membrane for weatherproofing a roof, comprising:

  • a plurality of layers of extensible reinforcing fabric overlying and covering the roof;

    a multiplicity of spaced apart fasteners securing at least the bottom layer, but not the top layer, of said layers of fabric to the roof;

    each of said layers of fabric being coated with an elastomeric polymer so as to fill the voids of each of said layers of fabric and to bond each of said layers of fabric together, but not to the roof, for providing a spot anchored, flexible, weatherproof membrane.

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