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Disclosed herein are caulkless panelized wall systems and methods for their construction, wherein the wall systems have elastomeric joints that are resistant to cracking. Building panels are fastened to a frame with the edges adjacent to each other. No caulk is applied to the seam between the buildi

Disclosed herein are caulkless panelized wall systems and methods for their construction, wherein the wall systems have elastomeric joints that are resistant to cracking. Building panels are fastened to a frame with the edges adjacent to each other. No caulk is applied to the seam between the building panels. A backing material is applied over the seam between the panels and the wall is then finished with an elastomeric finish.

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What is claimed is: 1. A method of constructing a caulkless panelized wall system, comprising: positioning at least two building panels over a frame, wherein the at least two building panels are substantially cementitious, each panel comprises a front surface, a back surface, and a plurality of edg

What is claimed is: 1. A method of constructing a caulkless panelized wall system, comprising: positioning at least two building panels over a frame, wherein the at least two building panels are substantially cementitious, each panel comprises a front surface, a back surface, and a plurality of edges, the back surfaces of the panels are positioned over the frame, the two panels are positioned adjacent to each other, forming a seam between the adjacent panels, and the two panels are substantially coplanar; fastening the panels to the frame; and forming a caulkless elastomeric joint comprising a backing material adhered over the seam, wherein the backing material is adhered to the front surfaces of the adjacent panels without any caulk applied to the seam between the adjacent panels. 2. The method of claim 1, wherein the panels are fiber cement. 3. The method of claim 1, wherein the adjacent panels are positioned with no gap therebetween. 4. The method of claim 1, wherein the adjacent panels are positioned with a gap therebetween. 5. The method of claim 4, wherein the gap is about ⅛" wide. 6. The method of claim 1, wherein the backing material is a fabric. 7. The method of claim 6, wherein the backing material is from about 0.0005" to about 0.04" thick. 8. The method of claim 6, wherein the fabric is a non-woven polyester fabric. 9. The method of claim 6, wherein the fabric is a polyamide mesh. 10. The method of claim 1, wherein the backing material is about 3" wide. 11. The method of claim 1, wherein the backing material is applied as a joint tape, wherein the joint tape comprises an adhesive preapplied to a face of the backing material. 12. The method of claim 1, wherein the caulkless elastomeric joint further comprises a ceramic putty applied over the backing material. 13. The method of claim 12, wherein the caulkless elastomeric joint further comprises an elastomeric joint filler applied over the ceramic putty. 14. The method of claim 1 further comprising applying an elastomeric finish to the panelized wall system. 15. The method of claim 14, wherein the elastomeric finish comprises an elastomeric primer and an elastomeric texture layer. 16. The method of claim 14, wherein the elastomeric finish is a texture coating. 17. The method of claim 1, wherein the frame is a wood frame. 18. The method of claim 1, wherein the frame comprises shear panels. 19. The method of claim 1, wherein the frame comprises a moisture barrier. 20. The method of claim 1, wherein the frame comprises a water break. 21. A caulkless panelized wall system comprising a frame; at least two building panels positioned over the frame, wherein the at least two building panels are substantially cementitious; each panel comprises a front surface, a back surface, and a plurality of edges, the back surfaces of the panels are positioned over the frame, the two panels are positioned adjacent to each other, forming a seam between the adjacent panels with no caulk applied to the seam, the panels are fastened to the frame, and no caulk is applied to the seam; and a caulkless elastomeric joint comprising a backing material adhered over the seam between the adjacent panels, wherein the backing material is adhered to the front surfaces of the adjacent panels without any caulk applied to the seam between the adjacent panels. 22. The caulkless panelized wall system of claim 21, wherein the panels are fiber cement. 23. The caulkless panelized wall system of claim 21, wherein the adjacent panels are positioned with no gap therebetween. 24. The caulkless panelized wall system of claim 21, wherein the adjacent panels are positioned with a gap therebetween. 25. The caulkless panelized wall system of claim 24, wherein the gap is about ⅛" wide. 26. The caulkless panelized wall system of claim 21, wherein the backing material is a fabric. 27. The caulkless panelized wall system of claim 26, wherein the backing material is from about 0.0005" to about 0.04" thick. 28. The caulkless panelized wall system of claim 26, wherein the fabric is a non-woven polyester fabric. 29. The caulkless panelized wall system of claim 26, wherein the fabric is a polymamide mesh. 30. The caulkless panelized wall system of claim 21, wherein the backing material is about 3" wide. 31. The caulkless panelized wall system of claim 21, wherein the backing material is applied as a joint tape, wherein the joint tape comprises an adhesive preapplied to a face of the backing material. 32. The caulkless panelized wall system of claim 21, wherein the caulkless elastomeric joint further comprises a ceramic putty applied over the backing material. 33. The caulkless panelized wall system of claim 32, wherein the caulkless elastomeric joint further an elastomeric joint filler applied over the ceramic putty. 34. The caulkless panelized wall system of claim 21 further comprising applying an elastomeric finish to the panelized wall system. 35. The caulkless panelized wall system of claim 34, wherein the elastomeric finish comprises an elastomeric primer and an elastomeric texture layer. 36. The caulkless panelized wall system of claim 34, wherein the elastomeric finish is a texture coating. 37. The caulkless panelized wall system of claim 21, wherein the frame is a wood frame. 38. The caulkless panelized wall system of claim 21, wherein the frame comprises shear panels. 39. The caulkless panelized wall system of claim 21, wherein the frame comprises a moisture barrier. 40. The caulkless panelized wall system of claim 21, wherein the frame comprises a water break.