Roofing and surfacing material and method

• US 4,141,187 A
• Filed: 01/28/1977
• Issued: 02/27/1979
• Est. Priority Date: 01/28/1977
• Status: Expired due to Term

• Current Assignee: Robert J. Graves
• Original Assignee: Robert J. Graves
• Inventors: Graves, Robert J.
• Primary Examiner(s): Murtagh, John E.
• Application Number:
  US05/763,733
• Time in Patent Office: 760 Days
• Field of Search: 156/71, 428/95, 428/227, 52/309.1, 52/309.3, 52/173, 52/516, 52/746, 52/747, 52/17, 404/17, 404/18, 404/19, 404/20, 219/213
• US Class Current: 52/173.1
• CPC Class Codes: E04D 11/02 Build-up roofs, i.e. consisting of two or more layers bonded together in situ, at least one of the layers being of watertight composition gravelling of flat roofs E04D7/00; venting or ventilation E04D13/17
• CPC Class Codes: E04D 13/103 De-icing devices or snow melters for drainage outlets E04D13/0409, for gutters E04D13/0762, for down pipes E04D13/08
• CPC Class Codes: E04D 7/00 Roof covering exclusively consisting of sealing masses applied in situ; Gravelling of flat roofs
• CPC Class Codes: H05B 2203/014 Heaters using resistive wires or cables not provided for in H05B3/54
• CPC Class Codes: H05B 2203/017 Manufacturing methods or apparatus for heaters
• CPC Class Codes: H05B 2203/026 Heaters specially adapted for floor heating
• CPC Class Codes: H05B 3/36 heating conductor embedded in insulating material

Abstract

A roofing and surfacing material and method for applying such material is disclosed. The surfacing material comprises weather-resistant light-weight polymeric substrate and a membrane of water impermeable pressure-sensitive adhesive material adhered onto a suitable base. In the preferred embodiment, the present invention comprises a synthetic polymeric substrate of 0.05 to 0.75 pounds per square foot, a water impermeable pressure-sensitive membrane of epoxy adhesive, and optionally an electrical heating grid embedded in said epoxy membrane.

Claims

1. A water-impermeable, weather resistant, light-weight structural surface for use in static structures, consisting of:

a. a structural base surface comprising a supported material selected from the group consisting of wood, metal, and concrete;

b. a layer of water-impermeable epoxy adhesive utilizing a water-activable curing agent, having a thickness of from about one-eighth to one-half inches disposed adjacent to said base surface and being directly adhered thereto, said adhesive layer having been applied in a flowable condition whereby a generally smooth top surface of the adhesive layer is produced;

c. a light-weight electrical heating grid incorporated into said water-impermeable layer; and

d. an upper layer of indoor-outdoor carpeting adhered to the top surface of said water-impermeable adhesive layer, said upper layer comprising a low-nap, non-woven, relatively thick web of polyolefin polymer or copolymer fibers having a thickness such as to provide a web with a weight of from about 0.05 to 0.75 pounds per square foot, and functioning as a relatively thick protective covering layer for said adhesive layer.

2. The structural surface of claim 1, wherein said adhesive layer has a thickness of from about one-fourth to about three-eighths inches.

3. The structural surface of claim 1, wherein said upper layer of indoor-outdoor carpeting has a weight of from about 0.15 to 0.40 pounds per square foot.

4. The structural surface of claim 1, wherein said upper layer of indoor-outdoor carpeting is treated with a chemical agent selected from the group consisting of stain repellant agents, fire-retardant agents, water-repellant agents, and combinations thereof.

5. The structural surface of claim 1, wherein said structural surface comprises a roof.

6. The structural surface of claim 1, wherein said structural surface comprises a wall.