# US 12,601,514 B2 · Roof ventilation system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,601,514 B2 - Document ID: US12601514B2 - Status: Granted - Kind: B2 - Application number: 18/521,514 - Filed: 2023-11-28 - Published: 2024-06-06 - Granted: 2026-04-14 - Earliest claimed: 2022-12-01 - Assignees: Marco Industries, Inc. - Applicants: Marco Industries Inc. - Inventors: Christopher Vallery; Robert P. Harris; Neil Westgarth; Robert C. Carnick; George Allaster - Web page: https://patentgrep.com/patent/US12601514B2 ## CPC - F24F 7/02: Roof ventilation (ventilation of roof coverings E04D) - F24F 8/108: using dry filter elements - F24F: AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING (removing dirt or fumes from areas where they are produced B08B15/00; vertical ducts for carrying away waste gases from buildings E04F17/02; tops for chimneys or ventilating shafts, terminals for flues F23L17/02) ## Abstract A roof ventilation system and the method of its use and construction are disclosed. The roof ventilation system may include a base including a base flashing, a throat extending from the base flashing, and a baffle extending at an acute angle relative to the throat. The roof ventilation system may further include a hood coupled to the base to create a passageway for air between the hood and the base. ## Claims ### Claim 1 A roof ventilation system comprising: a base comprising a base flashing, a throat extending from the base flashing, and a baffle extending from the throat at an acute angle relative to the throat, wherein the baffle comprises a first edge attached to the throat; a hood coupled to the base to create a passageway for air between the hood and the base, the hood comprising an inner surface spaced away from the baffle to define the passageway; and, wherein the first edge includes a living hinge attaching the baffle to the throat. ### Claim 2 (depends on 1) The roof ventilation system of claim 1, wherein the base comprises an opening to a roof deck to vent air from a vented space to an outside environment. ### Claim 3 (depends on 2) The roof ventilation system of claim 2, further comprising a non-woven filter to limit an infiltration of moisture or debris into the vented space through the opening, wherein the filter is positioned against the baffle. ### Claim 4 (depends on 1) The roof ventilation system of claim 1, wherein an engagement of the hood to the base positions the baffle at the acute angle relative to the throat. ### Claim 5 (depends on 4) The roof ventilation system of claim 4, further comprising one or more support structures coupled to the throat to support the baffle at the acute angle when the hood is engaged to the base. ### Claim 6 (depends on 4) The roof ventilation system of claim 4, wherein the hood is engaged with the base by a snap assembly of the hood, wherein the baffle is bent to the acute angle by the snap assembly of the hood. ### Claim 7 (depends on 1) The roof ventilation system of claim 1, wherein the acute angle is eighty-four degrees or less. ### Claim 8 (depends on 1) The roof ventilation system of claim 1, further comprising a grill coupled to the base. ### Claim 9 (depends on 1) The roof ventilation system of claim 1, further comprising a grill coupled to the base, the grill providing a screen to limit an entry of debris into the vented space through the opening. ### Claim 10 (depends on 1) The roof ventilation system of claim 1, wherein the inner surface defines a cavity of the hood, and wherein the baffle is positioned entirely within the cavity. ### Claim 11 (depends on 1) The roof ventilation system of claim 1, wherein the baffle comprises a second edge opposite the first edge, wherein the second edge is a free edge. ### Claim 12 (depends on 11) The roof ventilation system of claim 11, wherein the second edge is spaced from the inner surface of the hood. ### Claim 13 A roof ventilation system comprising: a base comprising a base flashing having an opening to a roof deck, a throat extending from the base flashing, and a baffle extending towards the base flashing at an acute angle relative to the throat; a hood coupled to the base to create a passageway for air between the hood and the base to the opening to vent air from a vented space to an outside environment, the hood comprising an inner surface spaced away from the baffle to define the passageway; and a filter to limit an infiltration of moisture or debris into the vented space through the opening, wherein the baffle is bent towards the base flashing and to the acute angle via a living hinge through the engagement of the hood to the base. ### Claim 14 (depends on 13) The roof ventilation system of claim 13, wherein an engagement of the hood to the base positions the baffle at the acute angle relative to the throat. ### Claim 15 (depends on 14) The roof ventilation system of claim 14, further comprising one or more support structures coupled to the throat to support the baffle at the acute angle when the hood is engaged to the base. ### Claim 16 (depends on 13) The roof ventilation system of claim 13, wherein the hood is engaged with the base by a snap assembly of the hood, and wherein the acute angle is eighty-four degrees or less. ### Claim 17 A base for a roof ventilation system, the base comprising: a base flashing having an opening to a roof deck; a throat extending from the base flashing and defining first, second, third, and fourth corners; a plurality of baffles extending towards the base flashing at an acute angle relative to the throat, the plurality of baffles comprising: a first baffle extending from the first corner to the second corner; a second baffle extending from the second corner to the third corner; a third baffle extending from the third corner to the fourth corner; and a fourth baffle extending from the fourth corner to the first corner; and a living hinge configured to move the plurality of baffles to the acute angle. ### Claim 18 (depends on 17) The base of claim 17, further comprising one or more support structures coupled to the throat to support the plurality of baffles at the acute angle. ### Claim 19 (depends on 17) The base of claim 17, further comprising a grill coupled to the base to screen the opening from debris. ### Claim 20 (depends on 17) A roof ventilation system comprising the base of claim 17, the roof ventilation system further comprising a hood coupled to the base to create a passageway for air between the hood and the base to the opening. ### Claim 21 (depends on 20) The roof ventilation system of claim 20, further comprising a filter to screen the opening from snow, dust, dirt, or insects.