# US 2014/0360109 A1 · Building envelope assembly including moisture transportation feature > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0360109 A1 - Document ID: US20140360109A1 - Status: Published application - Kind: A1 - Application number: 14/469,183 - Filed: 2014-08-26 - Published: 2014-12-11 - Earliest claimed: 2009-05-18 - Assignees: Moisture Management, LLC - Applicants: Moisture Management, LLC - Inventors: Louise Franklin Goldberg; Mark Larry Stender - Web page: https://patentgrep.com/patent/US20140360109A1 ## CPC - E02D 19/00: Keeping dry foundation sites or other areas in the ground (sheet piles or bulkheads E02D5/02) - E04B 1/625: {Sheets or foils allowing passage of water vapor but impervious to liquid water; house wraps} - E04B 1/66: Sealings ({damp-proof courses E04B1/644; fire-proof sealings E04B1/948;} additions of anti-leak properties to plaster C04B; bituminous sealing masses C08L95/00; sealings for hydraulic engineering work in general E02B3/16; against ground humidity or ground water E02D31/02; coverings against rain or other precipitations of the atmosphere E04D) - E04B 1/665: {Sheets or foils impervious to water and water vapor} - E04B 1/70: Drying or keeping dry, e.g. by air vents ({using damp-proof courses E04B1/644; using sealings, e.g. sealing masses or foils, E04B1/66}; during erection E04G21/28) - E04B 2/707: {obturation by means of panels} - E02D: FOUNDATIONS; EXCAVATIONS; EMBANKMENTS (specially adapted for hydraulic engineering E02B); UNDERGROUND OR UNDERWATER STRUCTURES {(tunnels, tunnelling, mining E21)} - 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 building envelope assembly including a first structural wall frame, a flexible sheet, a drain assembly, and a seal. The flexible sheet is disposed along a surface of the first structural wall frame. The flexible sheet configured to transport moisture along two opposing surfaces. The flexible sheet includes an upper portion and a bottom portion having a moisture wicking sheet. The drain assembly is configured to receive moisture from the flexible sheet. The seal is attached to the bottom portion of the flexible sheet and is configured to prevent ingress of water, water vapor, and air toward the upper portion of the flexible sheet. ## Claims ### Claim 1 A building envelope assembly comprising: a first structural wall frame; a flexible sheet disposed along an interior surface of the first structural wall frame, the flexible sheet configured to transport moisture along two opposing surfaces, the flexible sheet including an upper portion and a bottom portion having a moisture wicking sheet; a drain assembly configured to receive moisture from the flexible sheet; and a seal attached to the bottom portion of the flexible sheet and configured to prevent ingress of water, water vapor, and air toward the upper portion of the flexible sheet. ### Claim 2 (depends on 1) The building envelope assembly of claim 1, wherein the drain assembly comprises a sealing cavity, a transfer cavity, and a drain cavity. ### Claim 3 (depends on 2) The building envelope assembly of claim 2, wherein the seal is disposed within the sealing cavity on opposing sides of the flexible sheet. ### Claim 4 (depends on 2) The building envelope assembly of claim 2, wherein the flexible sheet terminates within the transfer cavity. ### Claim 5 (depends on 1) The building envelope assembly of claim 1, wherein the drain assembly includes a removable top member. ### Claim 6 (depends on 1) The building envelope assembly of claim 1 comprising: a second wall frame parallel to the first structural wall frame; and an insulation layer disposed between second wall frame and the flexible sheet. ### Claim 7 (depends on 6) The building envelope assembly of claim 6 comprising: a top cap configured to retain a top portion of the flexible sheet and extend along a top edge of the insulation layer and the second wall frame. ### Claim 8 (depends on 6) The building envelope assembly of claim 6, wherein the insulation layer is non-permeable board insulation, and wherein the flexible sheet includes protrusions extending toward the first structural wall frame, and moisture is transported along an exterior surface of the flexible sheet. ### Claim 9 (depends on 6) The building envelope assembly of claim 6, wherein the insulation layer is spray foam insulation, wherein the flexible sheet includes protrusions extending toward the insulation, wherein a nylon mesh and a rayon staple are adhered to the protrusions, and wherein moisture is transported along an interior surface only of the flexible sheet above a bottommost protrusion and along both the interior surface and an exterior surface of the flexible sheet below the bottommost protrusion. ### Claim 10 (depends on 6) The building envelope assembly of claim 6, wherein the insulation layer is spray foam insulation, wherein the flexible sheet includes protrusions extending toward the insulation and toward the first structural wall frame, wherein a nylon mesh and a rayon staple are adhered to the protrusions extending toward the insulation, and wherein moisture is transported along an interior surface and an exterior surface of the flexible sheet. ### Claim 11 A building envelope assembly comprising: a structural wall system; a drain assembly including a bottom plate, a face plate extending perpendicular from the bottom plate, a sealing cavity, a transfer cavity fluidly connected to the sealing cavity, and at least one drainage cavity fluidly connected to the transfer cavity; opposing sealing members assembled in the sealing cavity; and a concrete slab abutting the structural wall system; wherein the bottom plate is disposed along a bottom surface of the concrete slab and the at least one drain cavity extends through a thickness of the concrete slab. ### Claim 12 (depends on 11) The building envelope assembly of claim 11, wherein the structural wall system is subterranean. ### Claim 13 (depends on 11) The building envelope assembly of claim 11, wherein a vapor retarder is installed below the concrete slab and wherein the bottom plate is sealed to the vapor retarder. ### Claim 14 (depends on 11) The building envelope assembly of claim 11, wherein the drain assembly includes a removable cap. ### Claim 15 (depends on 11) The building envelope assembly of claim 11 comprising: a flexible sheet disposed along an interior side of the structural wall system, the flexible sheet including a moisture wicking sheet along a bottom portion of the flexible sheet, the flexible sheet configured to transport moisture along the opposing faces and into the drain assembly, wherein the bottom portion extends between the pair of sealing members and terminates within the transfer cavity. ### Claim 16 (depends on 15) The building envelope assembly of claim 15 comprising: a nylon mesh and a rayon sheet adjacently disposed along an interior face of the flexible sheet. ### Claim 17 A building envelope assembly comprising: a structural wall system; a drain assembly including a bottom plate, a face plate extending perpendicular from the bottom plate, a sealing cavity, a transfer cavity fluidly connected to the sealing cavity, and at least one drainage cavity fluidly connected to the transfer cavity; opposing sealing members assembled in the sealing cavity; a second wall system parallel to the structural wall system; and a flexible sheet disposed between the structural wall system and the second wall system and configured to transport moisture from between the structural wall system and the second wall system. ### Claim 18 (depends on 17) The building envelope assembly of claim 17, wherein the second wall system includes an insulation layer disposed adjacent to the flexible sheet. ### Claim 19 (depends on 1) The building envelope assembly of claim 1, wherein the drain assembly is configured to direct fluid toward an exterior surface of the first structural wall frame. ### Claim 20 (depends on 17) The building envelope assembly of claim 17, wherein the structural wall includes weep holes and the face plate extends and terminates below the weep holes.