# US 9,752,324 B2 · Roofing shingle system and shingles for use therein > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,752,324 B2 - Document ID: US9752324B2 - Status: Granted - Kind: B2 - Application number: 14/656,886 - Filed: 2015-03-13 - Published: 2016-09-15 - Granted: 2017-09-05 - Earliest claimed: 2015-03-13 - Assignees: Building Materials Investment Corporation - Applicants: Building Materials Investment Corporation - Inventors: Olan Leitch - Web page: https://patentgrep.com/patent/US9752324B2 ## CPC - E04D 1/26: Strip-shaped roofing elements {simulating a repetitive pattern, e.g.} appearing as a row of shingles - E04D 5/12: specially modified, e.g. perforated, with granulated surface, with attached pads - E04D 2001/005: {the roofing elements having a granulated surface} - E04D: ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS (coverings of outer walls by plaster or other porous material E04F13/00) ## Abstract A roofing shingle is provided comprising a reduced-with headlap portion including headlap projections, a buttlap portion including buttlap projections, a lateral leading edge, and a lateral trailing edge, wherein the headlap projection nearest the lateral leading edge has an increased breadth. A roofing system is also provided comprising a multiplicity of courses of shingles of the invention, wherein a lateral trailing edge of a shingle in a single course overlaps (side-laps) an adjacent previously installed shingle, and wherein a shingle in a subsequent course provides a generally uniform overlap region over the headlap portions of a first and second adjacent shingle in the first course and an expanded overlap region over the second adjacent shingle, wherein the expanded overlap region is due to the increased breadth of the headlap projection nearest the lateral leading edge of the second adjacent shingle in the first course. ## Claims ### Claim 1 A roofing shingle comprising: a headlap portion, a buttlap portion, a lateral leading edge, and a lateral trailing edge; wherein said buttlap portion includes a plurality of buttlap projections extending away from the shingle defining a maximum buttlap width and a plurality of recessed horizontal buttlap portions; wherein each of said buttlap projections includes a horizontal edge defining a projected horizontal buttlap portion; wherein each said projected horizontal buttlap portion has a primary horizontal breadth at the respective horizontal edge that is about equal for each said projected horizontal buttlap portion, and is about equal to a breadth of at least one of said recessed horizontal buttlap portions; wherein said headlap portion includes a plurality of headlap projections extending away from the shingle defining a maximum headlap width and a plurality of recessed horizontal headlap portions; wherein each of said headlap projections includes a horizontal edge defining a projected horizontal headlap portion; wherein a first of said projected horizontal headlap portions is nearest to the lateral leading edge and has a horizontal breadth at said horizontal edge that is greater than the primary horizontal breadth; and wherein the horizontal breadth of the first of said projected horizontal headlap portions nearest to the lateral leading edge is greater than a breadth at said horizontal edge of at least another of said projected horizontal headlap portions and a breadth of at least one of said recessed horizontal headlap portions and said breadth of said at least another of said projected horizontal headlap portions is about equal to the primary horizontal breadth; wherein the maximum headlap width is less than the maximum buttlap width; and wherein said headlap portion is surfaced with a first shade of granules and said buttlap portion is surfaced with a second contrasting shade of granules. ### Claim 2 (depends on 1) The roofing shingle according to claim 1, wherein the buttlap portion is further surfaced with a third further contrasting shade of granules on the buttlap projections. ### Claim 3 (depends on 1) The roofing shingle according to claim 1, wherein the maximum headlap width is approximately 60% of the maximum buttlap width. ### Claim 4 (depends on 1) The roofing shingle according to claim 1, wherein the buttlap projections have a height of about 2 inches. ### Claim 5 (depends on 4) The roofing shingle according to claim 4, wherein the headlap projections have a height of about 1¾ inches. ### Claim 6 (depends on 1) The roofing shingle according to claim 1, wherein the breadth of the first projected horizontal headlap portion nearest to the lateral leading edge is about 125% the primary horizontal breadth. ### Claim 7 (depends on 1) The roofing shingle according to claim 1, wherein the primary horizontal breadth is about 6 inches. ### Claim 8 (depends on 1) The roofing shingle according to claim 1, wherein at least one of said buttlap projections has a shape that mirrors one of the headlap projections laterally across the shingle. ### Claim 9 (depends on 1) The roofing shingle according to claim 1, wherein the shingle is single-layer. ### Claim 10 (depends on 1) A roofing system comprising a plurality of the roofing shingle according to claim 1, wherein the roofing system comprises a plurality of courses of said shingles, and wherein the lateral trailing edge of a subsequently installed at least one of said shingles in a first course of shingles overlaps the lateral leading edge of an adjacent one of said previously installed shingles in the first course to provide a side-lap region, and wherein the side-lap region forms a part of a partially side-lapped recessed horizontal buttlap portion having a breadth about equal to the primary horizontal breadth; and wherein at least one of said shingles in a subsequent course of shingles provides: (a) a generally uniform overlap region over the headlap portions of a first adjacent shingle and a second adjacent shingle in the first course; and (b) an expanded overlap region over the headlap portion of the second adjacent shingle, wherein the expanded overlap region is due to the increased projection breadth of the first headlap projection nearest to the lateral leading edge of the second adjacent shingle. ### Claim 11 (depends on 10) The roofing system according to claim 10, wherein a buttlap projection nearest to the trailing edge of said at least one of said shingles in the subsequent course of shingles overlaps the side-lap region between adjacent shingles in the first course. ### Claim 12 (depends on 10) The roofing system according to claim 10, wherein the buttlap portion is further surfaced with a third further contrasting shade of granules on the buttlap projections. ### Claim 13 (depends on 10) The roofing system according to claim 10, wherein at least one of said buttlap projections has a shape that mirrors one of the headlap projections laterally across said at least one of said shingles. ### Claim 14 (depends on 10) The roofing system according to claim 10, wherein the side-lap region has a breadth of about 3 inches. ### Claim 15 A roofing system comprising: single-layer shingles in more than one course wherein each of said shingles has a length, a headlap portion, a buttlap portion, a lateral leading edge, and a lateral trailing edge; wherein said buttlap portion includes a plurality of buttlap projections extending away from the shingle defining a maximum buttlap width; wherein the buttlap projections have a breadth that is about equal for each buttlap projection defining a primary projection breadth opposite a primary horizontal breadth at a horizontal edge; wherein said headlap portion includes a plurality of headlap projections extending away from the shingle defining a maximum headlap width; wherein a first of said headlap projections nearest to the lateral leading edge has an increased projection breadth that is greater than the primary projection breadth, and the increased projection breadth of the first of said headlap projections nearest to the lateral leading edge is greater than a breadth of at least another of said headlap projections: and wherein said breadth of said at least another of said headlap projections is about equal to the primary projection breadth; wherein the maximum headlap width is less than the maximum buttlap width; wherein the roofing system comprises a plurality of courses of said shingles, and wherein the lateral trailing edge of a subsequently installed at least one of said shingles in a first course of shingles overlaps the lateral leading edge of an adjacent previously installed one of said shingles in the first course to provide a side-lap region; and wherein at least one of said shingles in a subsequent course of shingles provides: (a) a generally uniform overlap region over the headlap portions of a first adjacent shingle and a second adjacent shingle in the first course, wherein the generally uniform overlap region has a transverse dimension that varies by less than 10% across the length of shingle in the subsequent course; and (b) an expanded overlap region over the headlap portion of the second adjacent shingle, wherein the expanded overlap region is due to the increased projection breadth of the first headlap projection nearest to the lateral leading edge of the second adjacent shingle. ### Claim 16 (depends on 15) The roofing system according to claim 15, wherein the buttlap projections and the headlap projections have a trapezoidal shape. ### Claim 17 (depends on 16) The roofing system according to claim 16, wherein the buttlap projections have a minimum breadth that extends away from the shingle, and wherein the headlap projections have a minimum breadth that extends away from the shingle. ### Claim 18 (depends on 15) The roofing system according to claim 15, wherein a buttlap projection nearest to the trailing edge of the shingle in the subsequent course of shingles overlaps the side-lap region between adjacent shingles in the first course. ### Claim 19 (depends on 15) The roofing system according to claim 15, wherein said headlap portion is surfaced with a first shade of granules and said buttlap portion is surfaced with a second contrasting shade of granules. ### Claim 20 (depends on 19) The roofing system according to claim 19, wherein the buttlap portion is further surfaced with a third further contrasting shade of granules on the buttlap projections. ### Claim 21 (depends on 15) The roofing system according to claim 15, wherein at least one of said buttlap projections has a shape that mirrors one of the headlap projections laterally across the shingle. ### Claim 22 (depends on 15) The roofing system according to claim 15, wherein the side-lap region has a breadth of about 3 inches. ### Claim 23 A roofing shingle comprising: headlap portion, a buttlap portion, a lateral leading edge, and a lateral trailing edge; wherein said buttlap portion includes a plurality of buttlap projections extending away from the shingle defining a maximum buttlap width and a plurality of recessed horizontal buttlap portions; wherein each of said buttlap projections includes a horizontal edge defining a projected horizontal buttlap portion; wherein each said projected horizontal buttlap portion has a horizontal buttlap breadth that differs from each other by between 0% and 20%, and differs from a breadth of at least one of said recessed horizontal buttlap portions by between 0% and 20%, and wherein at least one of said projected horizontal buttlap portions has a maximum horizontal buttlap breadth; wherein said headlap portion includes a plurality of headlap projections extending away from the shingle defining a maximum headlap width and a plurality of recessed horizontal headlap portions; wherein each of said headlap projections includes a horizontal edge defining a projected horizontal headlap portion; wherein a first of said projected horizontal headlap portions is nearest to the lateral leading edge and has a maximum horizontal breadth that is greater than the maximum horizontal buttlap breadth, and wherein the maximum horizontal breadth of the first of said projected horizontal headlap portions nearest to the lateral leading edge is greater than a maximum breadth of at least another of said projected horizontal headlap portions and at least one of said recessed horizontal headlap portions has a breadth that differs from the horizontal buttlap breadth of each of the projected horizontal buttlap portions by between 0% and 20%; wherein the maximum headlap width is less than the maximum buttlap width; and wherein said headlap portion is surfaced with a first shade of granules and said buttlap portion is surfaced with a second contrasting shade of granules.