Roof construction

• US 3,892,899 A
• Filed: 07/19/1973
• Issued: 07/01/1975
• Est. Priority Date: 07/19/1973
• Status: Expired due to Term

• Current Assignee: Paul P. Klein
• Original Assignee: Paul P. Klein
• Inventors: Klein, Paul P.
• Primary Examiner(s): Schulz, William E.
• Application Number:
  US05/380,864
• Time in Patent Office: 712 Days
• Field of Search: 161/36,38,21,159,160,161 52/404,409,408,199,515,246
• US Class Current: 428/49
• CPC Class Codes: B32B 2315/06 Concrete
• CPC Class Codes: B32B 2323/04 Polyethylene
• CPC Class Codes: B32B 2327/06 PVC, i.e. polyvinylchloride
• CPC Class Codes: B32B 2375/00 Polyureas; Polyurethanes
• CPC Class Codes: B32B 2419/06 Roofs, roof membranes
• CPC Class Codes: B32B 27/12 next to a fibrous or filamentary layer
• CPC Class Codes: B32B 27/286 comprising polysulphones; polysulfides
• 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: Y10T 428/166 Glass, ceramic, or metal sections [e.g., floor or wall tile, etc.]
• CPC Class Codes: Y10T 428/249968 Of hydraulic-setting material
• CPC Class Codes: Y10T 428/249976 Voids specified as closed
• CPC Class Codes: Y10T 428/249992 Linear or thermoplastic

Abstract

This invention relates to a method of constructing a roof to provide a surface which may be employed as a play, recreation or high traffic area.

Claims

1. A ROOF CONSTRUCTION CAPABLE OF WITHSTANDING CONSTANT AND ACTIVE FOOT TRAFFIC, WHICH COMPRISES, IN COMBINATION:

A. A ROOF DECK, B. A WATER IMPERMEABLE MEMBRANE AFFIXED TO THE UPPER SURFACE OF SAID ROOF DECK, C. A THERMAL INSULATING MEMBER DISPOSED ON THE UPPER SURFACE OF SAID WATER IMPERMEABLE MEMBRANE, D. A BALLAST MEMBER COMPRISED OF A MULTITUDE OF PRECUT CONCRETE OR CEMENTITIOUS BLOCKS OR PAVING SQUARES DISPOSED ON THE UPPER SURFACE OF SAID THERMAL INSULATING MEMBER, AND E. A SUBSTANTIALLY WATER IMPERMEABLE AND NON-ABSORBENT WEARING SURFACE AFFIXED ON THE UPPER SURFACE OF SAID BALLAST MEMBER, TO PROVIDE A RELATIVELY SMOOTH, RESILIENT AND UNIFORM UPPER SURFACE TO SAID WEARING SURFACE MEMBER.

2. The roof construction of claim 1, wherein the ballast member is comprised of a multitude of concrete blocks having a density of at least 5 pounds per square foot.

3. The roof construction of claim 1, wherein the wearing surface member is affixed on the upper surface of the said ballast member in a thickness of about one-quarter inch.

4. The roof construction of claim 1, wherein the thermal insulating member is a plastic cellular foam material.