Patent ID: 8490357
Filing Date: 2013-07-23
Classification: C04B,E04D

Abstract:
1. A roof system comprising: a roof deck; a first layer of lightweight insulating concrete; a layer of board insulation; a second layer of lightweight insulating concrete defining a top coat, and said second layer of lightweight insulating concrete having a top surface; an arrangement of grooves formed in said top surface of said second layer of lightweight insulating concrete deck, each of said grooves having a V-shaped cross-sectional configuration and said grooves being structured and disposed for directing moisture and liquid to the perimeter of the roof system; a slurry coat of a concrete composition applied over said top coat in between said arrangement of grooves for filling in cracks and holes in said top coat, and said concrete composition of said slurry coat comprising: a base ply membrane attached to said slurry coat during curing of said concrete composition; and at least one layer of roofing membrane attached to said base ply membrane.