# US 8,739,494 B2 · Composite concrete and framing system and method for building construction > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,739,494 B2 - Document ID: US8739494B2 - Status: Granted - Kind: B2 - Application number: 14/063,765 - Filed: 2013-10-25 - Published: 2014-02-20 - Granted: 2014-06-03 - Earliest claimed: 2011-04-21 - Assignees: Spray Rock LLC - Applicants: John Joseph Francavilla - Inventors: John Joseph Francavilla - Web page: https://patentgrep.com/patent/US8739494B2 ## CPC - E04B 2/54: the walls being characterised by fillings in all cavities in order to form a wall construction - E04B 2/845: {the form leaf comprising a wire netting, lattice or the like} - E04B 2/86: made in permanent forms - E04C 2/06: reinforced - E04C 2/384: {with a metal frame} - F16B 21/02: Releasable fastening devices locking by rotation (with snap-action F16B21/06; studs or coupling pins with resilient protrusions F16B21/08) - F16B 21/09: Releasable fastening devices with a stud engaging a keyhole slot - E04B: GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS (border constructions of opening in walls, floors or ceilings E06B1/00; {electromagnetic shielding H05K9/0001}) - E04C: STRUCTURAL ELEMENTS; BUILDING MATERIALS (for bridges E01D; specially designed for insulation or other protection E04B; elements used as building aids E04G; for mining E21; for tunnels E21D; structural elements with broader range of application than for building engineering F16, particularly F16S) - F16B: DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING (couplings for transmitting rotation F16D) ## Abstract A composite building construction system comprising a frame, an expanded wallboard, and a concrete layer. The wallboard comprises an outer portion and inset portion wherein the wallboard is attached to the frame with the outer portion covering an exterior side of the frame and the inset portion is disposed within the frame. The wallboard thus provides exterior and interior insulation for the system. The concrete layer is sprayed on to the outer portion of said wallboard, forming a strong durable composite construction system. One or more rebar supports may be attached to the frame at the exterior side by key bolts and are spaced apart from the wallboard. A wire grid may be attached to the key bolts whereby the grid and the rebar supports provide a support structure for the concrete layer. The frame comprises steel and the wallboard comprises insulative expanded polystyrene. ## Claims ### Claim 1 A composite building construction system, comprising: a frame having a plurality of outer members and one or more cross members, a unitary wallboard, and a concrete layer; said unitary wallboard comprising an outer portion and inset portion, said inset portion including one or more channels configured to accommodate said one or more cross members of said frame; wherein said unitary wallboard is attached to said frame with said outer portion covering an exterior side of said frame and said inset portion is disposed within said frame, said unitary wallboard providing exterior and interior insulation for said system; and wherein said concrete layer is provided on said outer portion of said unitary wallboard. ### Claim 2 (depends on 1) The composite building construction system of claim 1, further comprising one or more rebar supports attached to said frame at said exterior side of said frame. ### Claim 3 (depends on 2) The composite building structure of claim 2, wherein said rebar supports are secured to one or more key bolts lockingly engaged with said frame. ### Claim 4 (depends on 3) The composite building construction system of claim 3, further comprising a wire grid attached to said one or more key bolts and spaced apart from said unitary wallboard, said grid and said rebar supports providing a support structure for said concrete layer. ### Claim 5 (depends on 1) The composite building construction system of claim 1, wherein said concrete layer has a thickness of 3 inches. ### Claim 6 (depends on 1) The composite building construction system of claim 1, wherein said outer framing members and said one or more cross members include one or more apertures for the routing of electrical wires or plumbing. ### Claim 7 (depends on 6) The composite building construction system of claim 6, wherein said apertures are adapted to receive conduits for protecting said electrical wires and said plumbing. ### Claim 8 (depends on 1) The composite building construction system of claim 1, further comprising one or more guide wires attached to said frame by key bolts at said exterior side of said frame, said guide wires spaced apart from said unitary wallboard and adapted to indicated the depth of said concrete layer. ### Claim 9 (depends on 1) The composite building construction system of claim 1 wherein said frame member is prefabricated and coded for assembly. ### Claim 10 (depends on 1) The composite building construction system of claim 1, wherein an interior side of said frame is configured to receive drywall. ### Claim 11 (depends on 1) The composite building construction system of claim 1, wherein said unitary wallboard is attached to said frame by an adhesive. ### Claim 12 A method of building construction, comprising: providing one or more frame sections, said frame sections having a plurality of outer members and one or more cross members; attaching a unitary wallboard to said frame sections, said unitary wallboard comprising an outer portion and inset portion, said inset portion including one or more channels configured to accommodate said one or more cross members of said frames; attaching said unitary wallboard to said frame such that said outer portion covers an exterior side of said frame and said inset portion is disposed within said frame, said unitary wallboard providing exterior and interior insulation for said frame; attaching one or more rebar supports to said frame, said rebar support spaced apart from said unitary wallboard; attaching a wire grid to said unitary wallboard such that said wire grid is spaced apart from said unitary wallboard; and spraying a concrete layer over said unitary wallboard and said wire grid. ### Claim 13 (depends on 12) The method of claim 12, further comprising the step of: after providing the one or more frame sections and before attaching unitary wallboard to said frame sections, assembling said one or more frame sections to form a housing unit. ### Claim 14 (depends on 12) The method of claim 12, wherein said one or more frame sections are prefabricated and coded according to a building construction plan. ### Claim 15 (depends on 12) The method of claim 12, wherein said frame comprises steel and said unitary wallboard comprises expanded polystyrene.