# US 2013/0239476 A1 · Vegetated roof system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2013/0239476 A1 - Document ID: US20130239476A1 - Status: Published application - Kind: A1 - Application number: 13/790,299 - Filed: 2013-03-08 - Published: 2013-09-19 - Earliest claimed: 2012-03-15 - Assignees: Molly Meyer, LLC - Applicants: Molly Meyer, LLC - Inventors: Molly Meyer - Web page: https://patentgrep.com/patent/US20130239476A1 ## CPC - A01G 9/033: Flat containers for turf, lawn or the like, e.g. for covering roofs - A01G 25/00: Watering gardens, fields, sports grounds or the like (special apparatus or adaptations for fertilising-liquids A01C23/00; nozzles or outlets, spraying apparatus B05B) - A01G: HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING (picking of fruits, vegetables, hops or the like A01D46/00; propagating unicellular algae C12N1/12) ## Abstract Embodiments of the present invention include a green roof system that includes a tray or array of trays designed to work in a drip irrigation system. The tray frame preferably has an open bottom covered by a filter fabric. ## Claims ### Claim 1 A tray for a modular green roof system, comprising: a frame having sidewalls defining a substantially polygonal shape around an interior volume configured for holding growing media; said interior volume defining a bottom face between the sidewalls, said frame defining an open space comprising at least a majority of the area of said bottom face; a filter fabric base adjacent said bottom face configured to support a filter fabric, which can be arranged to support growing media within said interior volume. ### Claim 2 (depends on 1) The tray of claim 1, wherein said open space comprises more than sixty percent of the area of said bottom face. ### Claim 3 (depends on 1) The tray of claim 1, wherein said open space comprises at least three-quarters of the area of said bottom face. ### Claim 4 (depends on 1) The tray of claim 1, comprising include a least one brace extending across said bottom face to support said filter fabric. ### Claim 5 (depends on 4) The tray of claim 4, wherein said at least one brace forms a crossed shape extending across said bottom face and separating the area of said bottom face area into four openings between said brace and said sidewalls. ### Claim 6 (depends on 1) The tray of claim 1, wherein said filter fabric base comprises extensions extending horizontally inward from said sidewalls to support the edges of a filter fabric. ### Claim 7 (depends on 6) The tray of claim 6, wherein openings are defined in a transition area between said sidewalls and said extensions to allow water to flow out from and into the tray. ### Claim 8 (depends on 1) The tray of claim 1, wherein said filter fabric base incorporates retention mechanisms to secure a filter fabric in place. ### Claim 9 (depends on 1) The tray of claim 1, wherein said sidewalls include lower vertical sidewall portions inwardly spaced towards the interior of the tray relative to upper sidewall portions. ### Claim 10 (depends on 9) The tray of claim 9, comprising an adjacent tray having an adjacent sidewall which includes a lower vertical sidewall portion inwardly spaced towards the interior of the tray relative to an upper sidewall portion, wherein the inward spacing of the adjacent lower sidewall portions defines a covered channel between said adjacent trays. ### Claim 11 (depends on 10) The tray of claim 10, wherein the inward spacing of the adjacent lower sidewall portions is sized to receive an irrigation tube within said covered channel without inhibiting water flow. ### Claim 12 (depends on 1) The tray of claim 1, comprising wall extensions supported within said frame to increase the effective height of said sidewalls. ### Claim 13 (depends on 12) The tray of claim 12, wherein said wall extensions are self-supporting within said tray interior. ### Claim 14 (depends on 12) The tray of claim 12, wherein said wall extensions are removably held in place within said tray interior. ### Claim 15 (depends on 12) The tray of claim 12, wherein said wall extensions are mounted on tabs extending horizontally inward from said sidewalls. ### Claim 16 An arrangement of trays for a modular green roof system, comprising: a plurality of adjacent trays arrangeable on an underlying structure each having a frame; each frame having sidewalls defining a substantially polygonal shape around an interior volume configured for holding a growing media, said interior volume defining a bottom face between the sidewalls, each frame defining open space comprising at least a majority of the area of said bottom face; said sidewalls including lower vertical sidewall portions spaced inward towards the interior of each tray relative to upper sidewall portions, wherein the inward spaced distances of sidewall portions of adjacent trays define covered channels between adjacent trays; and, irrigation tubing arranged in at least one of said covered channels. ### Claim 17 (depends on 16) The arrangement of claim 16, wherein said sidewalls define openings to allow water to flow out from and into the trays. ### Claim 18 (depends on 16) The arrangement of claim 16, wherein said frames are substantially rectangular in shape. ### Claim 19 (depends on 18) The arrangement of claim 18, wherein said plurality of trays are arrayed on an underlying structure in an arrangement of parallel rows and columns. ### Claim 20 (depends on 16) The arrangement of claim 16, comprising filter fabric arranged across the bottom face in each tray to support growing media within each said interior volume.