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The present invention provides a pressure equalizing compartment for building structures comprising: an inner member having oppositely facing inner and outer surfaces and having a top and bottom edge; spaced closure members contacting said outer surface of said inner member and extending vertically

The present invention provides a pressure equalizing compartment for building structures comprising: an inner member having oppositely facing inner and outer surfaces and having a top and bottom edge; spaced closure members contacting said outer surface of said inner member and extending vertically on the surface of the inner member, a horizontally disposed closure member disposed on the outer surface of the inner member, a space being defined between said spaced, closure members; a cavity forming means disposed in said space between said closure members; an outer member having oppositely facing inner and outer surfaces disposed substantially over said cavity forming means to form a pressure equalizing compartment, wherein the compartment having an air and moisture vent communicating to the outside environment. The present invention also provides exterior insulation and finish systems and building walls incorporating the pressure equalizing compartments and methods of installation.

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1. A pressure equalizing compartment for a building structure having a frame comprising: an inner member attached to the exterior surface of said frame having oppositely facing inner and outer surfaces, said outer surface substantially uniformly coated with an air/weather barrier; a closure mem

1. A pressure equalizing compartment for a building structure having a frame comprising: an inner member attached to the exterior surface of said frame having oppositely facing inner and outer surfaces, said outer surface substantially uniformly coated with an air/weather barrier; a closure member horizontally disposed on a portion of said outer surface of said inner member; spaced apart closure members contacting a portion of said outer surface of said inner member and extending vertically along said inner member and in contact with a portion of said horizontally disposed closure member, a space being defined between said vertically spaced closure members and said horizontally disposed closure member; a drainage cavity forming means disposed in said space defined by said closure members and substantially contacting said air/weather barrier; and an outer insulating member having oppositely facing inner and outer surfaces disposed substantially over said drainage cavity forming means within said space defined by said closure members to form a compartment; wherein said compartment has an air and moisture vent communicating to the outside environment. 2. The pressure equalizing compartment of claim 1, wherein the inner member is selected from the group consisting of plywood, wafer board, particle board, cement board, gypsum board and concrete block.3. The pressure equalizing compartment of claim 2, wherein said inner member is gypsum board.4. The pressure equalizing compartment of claim 2, wherein said inner member is plywood.5. The pressure equalizing compartment of claim 1, wherein the outer insulating member is a polymeric member.6. The pressure equalizing compartment of claim 5, wherein the polymeric member is a polystyrene insulation board.7. The pressure equalizing compartment of claim 1, wherein said spaced closure members are manufactured from a polymeric material.8. The pressure equalizing compartment of claim 7, wherein said polymeric material is polystyrene.9. The pressure equalizing compartment of claim 1, wherein said drainage cavity forming means is a three-dimensional mat of plastic filaments.10. The pressure equalizing compartment of claim 9, wherein said mat comprises an open, three-dimensional matrix of irregularly looped and intermingled plastic filaments and are self-bonded at random points of intersection.11. The pressure equalizing compartment of claim 10, wherein said plastic filaments are selected from the group consisting of polypropylene, high density polyethylene, polyvinylchloride, polystyrene, polyester and nylon.12. The pressure equalizing compartment of claim 11, wherein the plastic filaments of said mat are nylon.13. The pressure equalizing compartment of claim 12, wherein the nylon filaments are nylon6.14. The pressure equalizing compartment of claim 1, wherein the closure members have a width of about 3 inches to about 12 inches.15. A pressure equalizing exterior insulation and finish system for a building structure having a frame comprising: at least one pressure equalizing compartment comprising: an inner member attached to the exterior of said frame having oppositely facing inner and outer surfaces, said outer surface substantially uniformly coated with an air/weather barrier;a closure member horizontally disposed on a portion of said outer surface of said inner member;spaced apart closure members contacting a portion of said outer surface of said inner member and extending vertically along said inner member and in contact with a portion of said horizontally disposed closure members, a space being defined between said vertically spaced closure members and said horizontally disposed closure member;a drainage cavity forming means disposed in said space defined by said closure members and substantially contacting said air/weather barrier;an outer insulating member having oppositely facing inner and outer surfaces disposed substantially over said drainage cavity forming means within said space defined by said closure members to form a compartment; wherein said compartment has an air and moisture vent communicating to the outside environment; andan exterior finish applied to said outer surface of said outer insulating member.16. The pressure equalizing exterior insulation and finish system of claim 15, wherein the inner member is selected from the group consisting of plywood, wafer board, particle board, cement board, gypsum board and concrete block.17. The pressure equalizing exterior insulation and finish system of claim 16, wherein said inner member is gypsum board.18. The pressure equalizing exterior insulation and finish system of claim 16, wherein said inner member is plywood.19. The pressure equalizing exterior insulation and finish system of claim 15, wherein the outer insulating member is a polymeric member.20. The pressure equalizing exterior insulation and finish system of claim 19, wherein the polymeric member is a polystyrene insulation board.21. The pressure equalizing exterior insulation and finish system of claim 15, wherein said spaced closure members are manufactured from a polymeric material.22. The pressure equalizing exterior insulation and finish system of claim 21, wherein said polymeric material is polystyrene.23. The pressure equalizing exterior insulation and finish system of claim 15, wherein said drainage cavity forming means is a three-dimensional mat of plastic filaments.24. The pressure equalizing exterior insulation and finish system of claim 23, wherein said mat comprises an open, three-dimensional matrix of irregularly looped and intermingled plastic filaments and are self-bonded at random points of intersection.25. The pressure equalizing exterior insulation and finish system of claim 24, wherein said plastic filaments are selected from the group consisting of polypropylene, high density polyethylene, polyvinylchloride, polystyrene, polyester and nylon.26. The pressure equalizing exterior insulation and finish system of claim 25, wherein the plastic filaments of said mat are nylon.27. The pressure equalizing exterior insulation and finish system of claim 26, wherein the nylon filaments are nylon6.28. The pressure equalizing exterior insulation and finish system of claim 15, wherein the closure members have a width of about 3 inches to about 12 inches.29. The pressure equalizing exterior insulation and finish system 15, wherein the exterior finish comprises: a reinforcing mesh; a base coat; and a finish coat applied to said base coat. 30. The pressure equalizing exterior insulation and finish system of claim 29, wherein the reinforcing mesh is substantially embedded in said base coat.31. The pressure equalizing exterior insulation and finish system of claim 29, wherein the reinforcing mesh is a glass fiber mesh.32. The pressure equalizing exterior insulation and finish system of claim 29, wherein system comprises fastening means to fasten said reinforcing mesh to said outer insulating member.33. The pressure equalizing exterior insulation and finish system of claim 32, wherein the fastening means is selected from the group consisting of nails, screws, staples, tacks, rivets and adhesives.34. The pressure equalizing exterior insulation and finish system of claim 33, wherein the fastening means are nails.35. The pressure equalizing exterior insulation and finish system of claim 33, wherein the fastening means are staples.36. A pressure equalized building wall comprising: a frame having an interior surface and an exterior surface; an inner member having oppositely facing inner and outer surfaces and having top and bottom edges, wherein said inner member is attached to the exterior surface of said frame; an air/weather barrier having opposite facing inner and outer surfaces, wherein said inner surfaces is in contact with said outer surface of said inner member; a closure member horizontally disposed on a portion of said outer surface of said air/weath er barrier; spaced apart closure members contacting said outer surface of said air/weather barrier and extending vertically along said air/weather barrier and in contact with a portion of said horizontally disposed closure member, a space being defined between said vertically spaced closure members and said horizontally disposed closure member; a drainage cavity forming means disposed in said space defined by said closure members and substantially contacting said air/weather barrier; and an outer insulating member having oppositely facing inner and outer surfaces disposed substantially over said drainage cavity forming means within said space defined by said closure members to form a compartment; wherein said compartment has an air and moisture vent communicating to the outside environment. 37. The pressure equalized building wall of claim 36, wherein the inner member is selected from the group consisting of plywood, wafer board, particle board, cement board, gypsum board and concrete block.38. The pressure equalized building wall of claim 37, wherein said inner member is gypsum board.39. The pressure equalized building wall of claim 37, wherein said inner member is plywood.40. The pressure equalized building wall of claim 36, wherein the outer insulating member is a polymeric member.41. The pressure equalized building wall of claim 40, wherein the polymeric member is a polystyrene insulation board.42. The pressure equalized building wall of claim 36, wherein said spaced closure members are manufactured from a polymeric material.43. The pressure equalized building wall of claim 42, wherein said polymeric material is polystyrene.44. The pressure equalized building wall of claim 36, wherein said drainage cavity forming means is a three-dimensional mat of plastic filaments.45. The pressure equalized building wall of claim 44, wherein said mat comprises an open, three-dimensional matrix of irregularly looped and intermingled plastic filaments and are self-bonded at random points of intersection.46. The pressure equalized building wall of claim 45, wherein said plastic filaments are selected from the group consisting of polypropylene, high density polyethylene, polyvinylchloride, polystyrene, polyester and nylon.47. The pressure equalized building wall of claim 46, wherein the plastic filaments of said mat are nylon.48. The pressure equalized building wall of claim 47, wherein the nylon filaments are nylon6.49. The pressure equalized building wall of claim 36, wherein the closure members have a width of about 3 inches to about 12 inches.50. The pressure equalized building wall of claim 36, wherein an exterior finish is applied to said outer surface of said outer insulating member.51. The pressure equalized building wall 50, wherein the exterior finish comprises: a reinforcing mesh; a base coat; and a finish coat applied to said base coat. 52. The pressure equalized building wall of claim 51, wherein the reinforcing mesh is substantially embedded in said base coat.53. The pressure equalized building wall of claim 51, wherein the reinforcing mesh is a glass fiber mesh.54. The pressure equalized building wall of claim 36, wherein system comprises fastening means to fasten said reinforcing mesh to said outer insulating member.55. The pressure equalized building wall of claim 54, wherein the fastening means is selected from the group consisting of nails, screws, staples, tacks, rivets and adhesives.56. The pressure equalized building wall of claim 55, wherein the fastening means are nails.57. The pressure equalized building wall of claim 55, wherein the fastening means are staples.58. A process for installing a pressure equalized building wall comprising: attaching an inner member having oppositely facing inner and outer surfaces to the exterior surface of a frame; applying an air/weather barrier substantially uniformly over the outer surface of said inner member; attaching a closure member on said outer sur face of said air/weather barrier in a substantially horizontal direction; attaching spaced apart closure members to said outer surface of said air/weather barrier, wherein said spaced apart closure members are extending vertically along said air/weather barrier and in contact with a portion of said horizontally disposed closure member, a space being defined between said vertically spaced closure members and said horizontally disposed closure member; disposing a drainage cavity forming means on the outer surface of the air/weather barrier within the spaced defined between said closure members; and disposing an outer insulating member having an inner surface and an outer surface substantially over the drainage cavity forming means within the space between said closure members. 59. The method of claim 58, further comprising applying an exterior finish to the outer surface of the outer insulating member.