초록 ▼

A vent baffle assembly provides air ventilation in a cathedral ceiling having rafter beams and roof sheathing. The vent baffle assembly includes a first vent sheet and a second vent sheet. The first vent sheet has first and second ends, first and second longitudinal ribs and a first lateral stiffene

A vent baffle assembly provides air ventilation in a cathedral ceiling having rafter beams and roof sheathing. The vent baffle assembly includes a first vent sheet and a second vent sheet. The first vent sheet has first and second ends, first and second longitudinal ribs and a first lateral stiffener extending generally perpendicularly to the ribs. The second vent sheet includes third and fourth ends, third and fourth longitudinal ribs, and a second lateral stiffener extending perpendicularly to the ribs. The first vent sheet is positioned between adjacent rafters with the ribs oriented parallel to the rafters. The second vent sheet overlaps the first vent sheet with respective ribs interengaged to limit lateral movement of the first vent sheet relative to the second vent sheet. The first lateral stiffener engages the second lateral stiffener to limit longitudinal movement of the first vent sheet relative to the second vent sheet.

대표청구항 ▼

Having thus described the invention, what is claimed is: 1. A vent baffle assembly for a cathedral ceiling to provide air ventilation in a cathedral ceiling portion of a building structure from a soffit area along roof sheathing affixed to rafter beams to an elevated vent, the vent baffle assembly

Having thus described the invention, what is claimed is: 1. A vent baffle assembly for a cathedral ceiling to provide air ventilation in a cathedral ceiling portion of a building structure from a soffit area along roof sheathing affixed to rafter beams to an elevated vent, the vent baffle assembly comprising: a first vent sheet having a first longitudinal axis and a first lateral axis perpendicular to said first longitudinal axis, and including a first longitudinal rib extending parallel to said first longitudinal axis and a first lateral stiffener extending parallel to said first lateral axis; and a second vent sheet having a second longitudinal axis and a second lateral axis perpendicular to said second longitudinal axis, and including a second longitudinal rib extending parallel to said second longitudinal axis and a second lateral stiffener extending parallel to said second lateral axis, the first and second vent sheets being positioned between two adjacent rafter beams such that the first and second longitudinal axes are generally parallel to the rafter beams, the first and second vent sheets overlapping such that the first longitudinal rib engages the second longitudinal rib to limit lateral movement between said first and second vent sheets, with the first lateral stiffener engaging the second lateral stiffener to limit longitudinal movement between said first and second vent sheets. 2. The vent baffle assembly of claim 1 wherein said first vent sheet is formed with a first main body portion incorporating said first longitudinal rib, and a generally planar first tail portion, said first main body portion being positioned between said adjacent said rafter beams, said first tail portion being oriented angularly to said first main body portion and being affixed to said building structure at said soffit area. 3. The vent baffle assembly of claim 2 wherein the first and second vent sheets are constructed of a polymeric material. 4. The vent baffle assembly of claim 3 wherein said first main body portion is formed with a first ribbed member and a second ribbed member connected together by a planar portion, said first tail portion being formed with a pair of generally planar members pivotally connected together by a living hinge. 5. The vent baffle assembly of claim 2 wherein both the first main body portion of said first vent sheet and second vent sheet include a plurality of longitudinal ribs and a plurality of lateral stiffeners extending across said longitudinal ribs, each said longitudinal rib being formed with planar sides while each said lateral stiffener is formed with an arcuate cross-section such that each said lateral stiffener forms a discontinuity along each longitudinal rib to define an edge against which first and second lateral stiffeners can engage and limit longitudinal movement between said first and second vent sheets. 6. The vent baffle assembly of claim 5 further comprising a third vent sheet having a second main body portion formed with a plurality of third longitudinal ribs and a plurality of third lateral stiffeners in substantially identical configuration to said first and second vent sheets, said third vent sheet further having a second generally planar tail portion affixed to said building structure near said elevated vent, said second main body portion being positioned between said adjacent rafter beams and engaged with said second vent sheet with at least one of said third lateral stiffeners engaging a corresponding said second lateral stiffener. 7. A vent baffle assembly for a building structure having a wall and rafter beams supporting roof sheeting and extending between said wall and an upper structural member, said building structure being formed with a cathedral ceiling having a ceiling panel affixed to said rafter beams, comprising: a first starter vent panel having a first tail portion affixed to said wall and a first main body portion formed in a ribbed configuration positioned between adjacent said rafter beams; and a second starter vent panel having a second tail portion affixed to said upper structural member and a second main body portion positioned between said adjacent said rafter beams. 8. The vent baffle assembly of claim 7 further comprising: at least one intermediate vent panel extending between said first and second starter vent panels, said at least one intermediate panel having a ribbed configuration conforming to said ribbed configuration of said first and second main body portions. 9. The vent baffle assembly of claim 8 wherein each said tail portion is formed with a pair of generally planar members pivotally connected together, and each said main body portion being formed with a first ribbed member and a second ribbed member connected together. 10. The vent baffle assembly of claim 9 wherein said first ribbed member is positioned between said adjacent said rafter beams, said second ribbed member being attached to said first planar member, said second planar member including a mounting flange. 11. The vent baffle assembly of claim 9 wherein said starter vent panel is formed of thermoplastic material, said first and second ribbed members being connected by a planar portion, said first and second planar members being connected by a living hinge. 12. The vent baffle assembly of claim 8 wherein each said main body portion and said at least one intermediate vent panel are formed with longitudinally extending ribs defining air passages between said vent baffle assembly and said roof sheathing when said vent baffle assembly is installed against said roof sheathing between said adjacent said rafter beams, the interengagement of said longitudinal ribs between said at least one intermediate vent panel preventing lateral movement therebetween. 13. The vent baffle assembly of claim 12 wherein each said main body portion and said intermediate vent panel are formed with laterally extending ribs defining discontinuities along said longitudinal ribs such that interengaged discontinuities of said at least one intermediate panel and said main body portions prevent longitudinal displacement therebetween. 14. A vent baffle assembly for use in a building structure having a cathedral ceiling formed by rafter beams extending from a soffit area at a wall to an upper support member and supporting roof sheathing on an upper side thereof and a ceiling member on a lower side thereof, comprising: a first starter vent panel having a first main body portion formed with at least one longitudinally extending rib and at least one laterally extending rib, and a first tail portion integrally formed with said main body portion and being positionable at an angle relative to said main body portion, at least a portion of said first main body portion being positionable between adjacent rafter beams to provide a passageway for movement of air from said soffit area to said upper support member, said first tail portion being engagable with said wall; a second starter vent panel having a second main body portion and a second tail portion angularly positionable relative to said second main body portion, said second main body portion being formed with at least one longitudinally extending rib and at least one laterally extending rib, said at least one longitudinally extending rib on said second starter vent panel being alignable with the at least one longitudinally extending rib of said first starter vent panel; and an intermediate vent panel extending between said first and second starter vent baffles and being formed with at least one longitudinally extending rib and at least two laterally extending ribs, said at least one longitudinally extending rib on said second starter vent panel being alignable with the at least one longitudinally extending ribs of both said first and second starter vent panels to restrict lateral movement of said intermediate vent panel relative to either of said starter vent panels, said laterally extending ribs of said intermediate vent panel being engagable with respective laterally extending ribs on said first and second starter vent panels to restrict longitudinal movement of said intermediate panel relative to either of said starter vent panels. 15. The vent baffle assembly of claim 14 wherein said laterally extending ribs defining discontinuities to permit an interengagement of the laterally extending ribs of said intermediate vent panel with respective laterally extending ribs of said first and second starter vent panels. 16. The vent baffle assembly of claim 15 wherein said each of said first and second starter vent panels and said intermediate vent panel are formed with a plurality of laterally extending ribs and a plurality of longitudinally extending ribs which define a corresponding cross-sectional configuration of each of said first and second starter vent panels and said intermediate vent panel to permit said intermediate vent panel to mate with each of said first and second starter vent panels. 17. The vent baffle assembly of claim 16 wherein each said tail portion is formed with a pair of generally planar members connected together by a first living hinge, each said main body portion being formed with a first ribbed member and a second ribbed member separated by an integral planar portion. 18. The vent baffle assembly of claim 17 wherein said first ribbed member of both of said first and second starter vent panels are positioned between adjacent said rafter beams, said first tail portion being attached to said wall and said second tail portion being attached to said upper support member. 19. The vent baffle assembly of claim 18 wherein each said second ribbed member and a corresponding first planar member of said tail portion are pivotally connected by a second living hinge. 20. The vent baffle assembly of claim 19 wherein said first and second starter vent panels and said intermediate vent panel have a transverse width that is greater than a corresponding transverse distance between said adjacent rafter beams to permit said first and second starter vent panels and said intermediate vent panel to form an interference fit between said adjacent rafter beams.