# US 8,782,991 B2 · Building roof structure having a round corner > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,782,991 B2 - Document ID: US8782991B2 - Status: Granted - Kind: B2 - Application number: 12/170,720 - Filed: 2008-07-10 - Published: 2010-01-14 - Granted: 2014-07-22 - Earliest claimed: 2008-07-10 - Assignees: Millport Associates S.A. - Applicants: Ulrich Schwartau - Inventors: Ulrich Schwartau - Web page: https://patentgrep.com/patent/US8782991B2 ## CPC - E04D 3/352: {at least one insulating layer being located between non-insulating layers, e.g. double skin slabs or sheets} - E04B 7/04: supported by horizontal beams or the equivalent resting on the walls (E04B7/06 takes precedence) - E04B 7/22: the slabs having insulating properties, e.g. laminated with layers of insulating material - E04D: ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS (coverings of outer walls by plaster or other porous material E04F13/00) - 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 roof structure may be made with one or more sandwich panels having a round corner and installed with a drainage slope (e.g., 5-10 degree) to facilitate removal of liquid (e.g., water, rain, snow, sleet, etc.) from the roof structure. The round corner may have any desired curvature and/or angle for establishing a drainage area. A bonding material may be used to secure and/or seal the underlying interface of the round corner. The roof structure may be secured to an exterior wall by the bonding material. ## Claims ### Claim 1 A roof member used in forming at least a portion of a roof, the roof member comprising: at least one sandwich panel having a first outer layer and a second outer layer spaced from the first outer layer by a panel core, the sandwich panel further including a first end, a second end and a round corner between the first end and the second end, wherein the round corner includes a continuous first outer layer, a discontinuous second outer layer and a discontinuous portion of the panel core, and a first bonding material forming a concave shape having an apex at a portion of the discontinuous second outer layer that forms the round corner. ### Claim 2 (depends on 1) The roof member of claim 1, wherein the sandwich panel is secured to at least one exterior wall of an associated structure at the second outer layer. ### Claim 3 (depends on 2) The roof member of claim 2, wherein a second bonding material is applied between the second outer layer and the at least one exterior wall of the associated structure. ### Claim 4 (depends on 2) The roof member of claim 2, wherein the first end is pitched above the round corner to facilitate movement of an associated liquid from the first end to the round corner. ### Claim 5 (depends on 4) The roof member of claim 4, wherein the first end is pitched at an angle relative to a base of the associated structure of less than approximately 20 degrees. ### Claim 6 (depends on 5) The roof member of claim 5, wherein the first end is pitched at an angle relative to the base of the associated structure of approximately 10 degrees. ### Claim 7 (depends on 1) The roof member of claim 1 further including a first axis extending from the first end and the round corner and a second axis extending from the second end and the round corner, wherein the first axis and the second axis are substantially perpendicular to each other. ### Claim 8 (depends on 1) The roof member of claim 1 further including a first axis extending from the first end and the round corner and a second axis extending from the second end and the round corner, wherein the first axis and the second axis form an obtuse angle. ### Claim 9 (depends on 1) The roof member of claim 1 further including a first axis extending from the first end and the round corner and a second axis extending from the second end and the round corner, wherein the first axis and the second axis forms an acute an angle. ### Claim 10 A structure used in forming at least a portion of a building, the structure comprising: at least one roof member sandwich panel having: a panel core, a first outer layer, a second outer layer spaced from the first outer layer by the panel core, a first end, a second end, and a round corner between the first end and the second end, wherein the first outer layer is continuous at the round corner, the second outer layer is discontinuous at the round corner, and a portion of the panel core is discontinuous at the round corner; a first bonding material forming a concave shape having an apex at a portion of the discontinuous second outer layer at the round corner; at least one wall member sandwich panel having: a panel core, a first outer layer, and a second outer layer spaced from the first outer layer by the panel core, and a second bonding material between the second outer layer of the at least one roof member sandwich panel and the at least one wall member sandwich panel, the second bonding material securing the second outer layer of the at least one roof member sandwich panel to the at least one wall member sandwich panel without an intervening connecting element. ### Claim 11 (depends on 10) The structure of claim 10, wherein the second bonding material forms a concave shape having an apex between a focal point of the concave shape and at least one of the at least one wall member sandwich panel and/or the at least one roof member sandwich panel. ### Claim 12 (depends on 10) The structure of claim 10, wherein the second bonding material is applied between the second outer layer of the at least one roof member sandwich panel and at least one of the first outer layer and/or the second outer layer of the at least one wall member sandwich panel. ### Claim 13 (depends on 10) The structure of claim 10, wherein the first bonding material forms a concave shape having an apex between a focal point of the concave shape and the at least one roof member sandwich panel.