Wall structures and methods for producing wall structures are described in this specification. The wall structures include a frame, a sheathing board attached to the frame, a foam layer, a bond break layer, a lath layer, and a stucco layer.
대표청구항▼
1. A wall structure comprising: a frame comprising: a first member;a second member spaced apart from the first member; andtwo side members extending between the first member and the second member, wherein the first member, the second member, and the two side members each comprise a front surface and
1. A wall structure comprising: a frame comprising: a first member;a second member spaced apart from the first member; andtwo side members extending between the first member and the second member, wherein the first member, the second member, and the two side members each comprise a front surface and a rear surface that form a front frame surface and a rear frame surface;a sheathing board attached to the front frame surface, wherein the sheathing board, the first and second members, and the two side members define a cavity within the frame;a foam layer located within the cavity and adhered to a rear-facing surface of the sheathing board;a bond break layer located adjacent to a front-facing surface of the sheathing board;a lath layer located adjacent to the bond break layer; anda stucco layer integrated into the lath layer,wherein the sheathing board comprises a polyisocyanurate foam layer and a facer material attached to a front face and a rear face of the polyisocyanurate foam layer. 2. The wall structure of claim 1, wherein the bond break layer comprises an asphalt-impregnated kraft paper, an asphalt-impregnated felt paper, an extruded polystyrene layer, an expanded polystyrene layer, a polyiso layer, a polyethylene sheet or film, a polypropylene sheet or film, a poly(vinyl chloride) sheet or film, a woven house wrap, a perforated housewrap, a nonmoven and spunbonded polyolefin sheet or film, a woven and perforated polyolefin sheet or film, a layer comprising a three-dimensional matrix of randomly-oriented extruded polymer filaments, or a fiberboard. 3. The wall structure of claim 1, wherein the bond break layer comprises a Grade D 60-minute building paper. 4. The wall structure of claim 1, wherein the lath layer comprises a self-furred steel wire lath. 5. The wall structure of claim 1, wherein the bond break layer and the lath layer are pre-bonded together, and wherein the pre-bonded combination of the bond break layer and the lath layer are positioned on the front-facing surface of the sheathing board and attached to the frame with one set of fasteners that penetrate through the sheathing board. 6. The wall structure of claim 5, wherein the pre-bonded combination of the bond break layer and the lath layer comprises a bond break layer comprising paper and a lath layer comprising metal wire lath. 7. The wall structure of claim 1, wherein the facer material comprises fiberglass mat, glass fiber-reinforced cellulosic felt, coated and polymer-bonded fiber mat, foil, coated foil, foil/membrane laminate, foil/glass composite, or polyolefin film. 8. The wall structure of claim 1, wherein the foam layer comprises polyurethane or polyisocyanurate, or mixtures thereof. 9. The wall structure of claim 1, wherein the sheathing board is attached to the front faces of the first and second members, and to the front faces of the two side members, with fasteners. 10. The wall structure of claim 1, wherein the sheathing board is attached to the front faces of the first and second members, and to the front faces of the two side members, with an adhesive. 11. The wall structure of claim 1, wherein the foam layer comprises a thickness extending from the rear-facing surface of the sheathing board to a position intermediate the front frame surface and the rear frame surface such that a gap is formed within the frame between a rear-facing surface of the foam layer and the rear frame surface. 12. A method for producing the wall structure of claim 1 comprising: providing a wall panel, the wall panel comprising: a frame comprising: a first member;a second member spaced apart from the first member; andtwo side members extending between the first member and the second member, wherein the first member, the second member, and the two side members each comprise a front surface and a rear surface that form a front frame surface and a rear frame surface;a sheathing board attached to the front frame surface, wherein the sheathing board, the first and second members, and the two side members define a cavity within the frame; anda foam layer located within the cavity and adhered to a rear-facing surface of the sheathing board;positioning a bond break layer and a lath layer adjacent to a front-facing surface of the sheathing board;attaching the bond break layer and the lath layer to the frame; andapplying a stucco layer integrated into the lath layer,wherein the sheathing board comprises a polyisocyanurate foam layer and a facer material attached to a front face and a rear face of the polyisocyanurate foam layer. 13. The method of claim 12, further comprising: assembling multiple wall panels into an incomplete wall structure;positioning the bond break layer and the lath layer adjacent to the front-facing surfaces of the sheathing board and over the incomplete wall structure;attaching the bond break layer and the lath layer to the frames of the multiple assembled panels; andapplying a stucco layer integrated into the lath layer to complete the wall structure. 14. The method of claim 12, wherein the lath layer comprises a self-furred steel wire lath, and wherein the bond break layer comprises an asphalt-impregnated kraft paper, an asphalt-impregnated felt paper, an extruded polystyrene layer, an expanded polystyrene layer, a polyiso layer, a polyethylene sheet or film, a polypropylene sheet or film, a poly(vinyl chloride) sheet or film, a woven house wrap, a perforated housewrap, a nonmoven and spunbonded polyolefin sheet or film, a woven and perforated polyolefin sheet or film, a layer comprising a three-dimensional matrix of randomly-oriented extruded polymer filaments, or a fiberboard. 15. The method of claim 12, wherein the bond break layer and the lath layer are pre-bonded together, and wherein the pre-bonded combination of the bond break layer and the lath layer are positioned on the front-facing surface of the sheathing board and attached to the frame with one set of fasteners that penetrate through the sheathing board. 16. The method of claim 15, wherein the pre-bonded combination of the bond break layer and the lath layer comprises a paper-backed metal wire lath. 17. The method of claim 16, wherein the bond break layer comprises a Grade D 60-minute building paper and the metal wire lath comprises a self-furred steel wire lath. 18. The method of claim 12, wherein the facer materials comprise fiberglass mat, glass fiber-reinforced cellulosic felt, coated and polymer-bonded fiber mat, foil, coated foil, foil/membrane laminate, foil/glass composite, or polyolefin film. 19. The method of claim 12, wherein the foam layer comprises polyurethane or polyisocyanurate, or mixtures thereof. 20. The method of claim 12, wherein applying the stucco layer comprises: applying a brown coat integrated into the lath layer; andapplying a finish coating onto the brown coat. 21. The method of claim 12, wherein applying the stucco layer comprises: applying a scratch coat integrated into the lath layer;applying a brown coat onto the scratch coat; andapplying a finish coating onto the brown coat.
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