# US 5,218,798 A · Exterior insulation facing system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 5,218,798 A - Document ID: US5218798A - Status: Granted - Kind: A - Application number: 07/767,851 - Filed: 1991-09-30 - Granted: 1993-06-15 - Earliest claimed: 1991-09-30 - Assignees: BLM Group - Inventors: Peter I. Bentivegna; Udo H. Maron; Anthony J. Merlino; Douglas C. Lindsay - Web page: https://patentgrep.com/patent/US5218798A ## CPC - E04B 1/7612: {in combination with an air space} - E04B 1/7069: {by ventilating (means for ventilating in floors E04B5/48, in ceilings E04B9/02, in building blocks E04C1/392, in building panels E04C2/521, in roofs E04D13/16; ventilating wall coverings E04F13/007)} - E04B 1/762: {Exterior insulation of exterior walls} - 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}) ## Abstract A laminated wall construction for building exteriors in which a facing outer layer provides the exterior surface and is attached to a corrugated layer such that the corrugations form vertical channels extending along the laminated wall construction. A trough is located at the lower end of the corrugated layer with weep holes formed in the trough whereby moisture which seeps through the facing outer layer flows down the corrugation layer of vertical channels into the trough and out of the weep holes. ## Claims ### Claim 1 A laminated wall construction for building exteriors comprising: a plurality of panels, with each said panel including a facing outer layer providing the exterior surface, a corrugated layer attached to said facing outer layer such that vertical channels are formed by the corrugations, a trough receiving a lower end of said corrugated layer, at least one weep hole formed in said trough, whereby moisture which seeps through said facing outer layer flows down said corrugation layer vertical channels into said trough and out of said weep hole; wherein each of said panel weep holes extend from said panel trough to a horizontal weep positioned underneath said panel, and said weep extending substantially horizontally to the exterior of the laminated wall construction; wherein flashing is provided around said weep to prevent vertical migration of moisture; wherein said flashing has a first portion which extends in a vertical direction in a position behind said panels relative to said building exterior, and a second portion which extends vertically adjacent said building exterior. ### Claim 2 (depends on 1) The laminated wall construction of claim 1 wherein an insulation layer is provided adjacent said corrugated layer between said corrugated layer and said first portion of said flashing. ### Claim 3 (depends on 1) The laminated wall construction of claim 1 wherein a plurality of weep holes are formed in said trough. ### Claim 4 (depends on 1) The laminated wall construction of claim 1 wherein a closure cap is provided at an upper end of said corrugated layer. ### Claim 5 (depends on 1) The laminated wall construction of claim 1 wherein each said panel corrugated layer comprises metal decking, and backing rods are provided between adjacent panels. ### Claim 6 (depends on 1) The laminated wall construction of claim 1 wherein said corrugated layer comprises 11/2" galvanized metal decking. ### Claim 7 (depends on 1) The laminated wall construction of claim 1 wherein a weep hole plug is received in said weep hole and said weep and allows moisture to exit through said weep hole and said weep. ### Claim 8 (depends on 7) The laminated wall construction of claim 7 wherein said weep hole plug is an open cell gasket plug. ### Claim 9 (depends on 2) The laminated wall construction of claim 2 wherein the laminated wall construction is adapted to be attached to spaced metal studs and said insulation layer is located between said spaced metal studs. ### Claim 10 (depends on 7) The laminated wall construction of claim 7 wherein an insulation layer is provided adjacent said corrugated layer. ### Claim 11 A laminated wall construction for building exteriors comprising: a facing outer layer providing the exterior surface; a corrugated layer attached to said facing outer layer such that vertical channels are formed by the corrugations; a trough receiving a lower end of said corrugated layer; at least one weep hole formed in the bottom of said trough, whereby moisture which seeps through said facing outer layer flows down said corrugation layer vertical channels into said trough and vertically out of said weep hole; wherein each said weep hole is positioned vertically above a horizontal weep, with said weep extending to the exterior of the laminated wall construction; wherein a weep hole plug is adapted to be received in said weep hole and said weep to allow moisture to exit through said weep hole and said weep; wherein an insulation layer is provided adjacent said corrugated layer; wherein said facing outer layer comprises a synthetic stucco applied to a fiberglass mesh over an expanded polystyrene board. ### Claim 12 (depends on 11) The laminated wall construction of claim 11 wherein flashing is provided around said weep hole to prevent vertical migration of moisture. ### Claim 13 (depends on 12) The laminated wall construction of claim 12 wherein a closure cap is provided at an upper end of said corrugated layer. ### Claim 14 (depends on 13) The laminated wall construction of claim 13 wherein the laminated wall construction is adapted to be attached to spaced metal studs and said insulation layer is located between said spaced metal studs. ### Claim 15 (depends on 7) The laminated wall construction of claim 7 wherein said weep hole is about 1/4" in diameter. ### Claim 16 (depends on 11) The laminated wall construction of claim 11 wherein flashing is provided around said weep to prevent vertical migration of moisture. ### Claim 17 (depends on 10) The laminated wall construction of claim 10 wherein at least one surface of said outer layer is provided with a V-groove. ### Claim 18 (depends on 17) The laminated wall construction of claim 17 wherein backing rods are positioned between horizontally adjacent panels. ### Claim 19 (depends on 18) The laminated wall construction of claim 18 wherein said trough is slanted toward said weep holes. ### Claim 20 A laminated wall construction for building exteriors comprising: a plurality of panels, each said panel including a facing outer layer providing the exterior surface, a corrugated layer attached to said facing outer layer such that vertical channels are formed by said corrugations, a trough receiving a lower end of said corrugated layer, at least one weep hole formed in said trough; each said panel week hole extends from said panel trough to a horizontal weep positioned vertically below said panel, said weep extending substantially horizontally to the exterior of said laminated wall construction; whereby moisture which seeps through said facing outer layer flows down said corrugation layer vertical channels into said trough, vertically out of said weep holes into said weep, and horizontally through said weep to said exterior of said laminated wall construction.