Abstract: The off-ridge roof vent with internal and external water diverters includes a throat, a hood and the water diverters. The throat has a front throat wall, a rear throat wall and a pair of longitudinally opposed throat sidewalls. The throat has open upper and lower ends. The hood has an upper hood wall that is convex upward, a pair of longitudinally opposed hood sidewalls and a lower hood wall. A lower end of the hood has a front portion that is open, wherein a perforated grating mounted therein. An internal water diverter extends upwardly from the front edge of the lower hood wall and slopes above the grating and the external water diverter extends downwardly from the front face of the hood at its terminal end portion.

Abstract: This application relates to roof vents with diverters that prevent or reduce the likelihood that water or other debris can be driven through the vent by wind. For example, a roof vent can include a lower portion and an upper portion attached to the lower portion at an upslope edge, the upper portion angling away from the upslope edge to create a space therebetween. The roof vent can also include a front opening between the lower portion and the upper portion at a downslope edge of the upper portion to allow airflow into and out of the space. The roof vent can include a diverter positioned downslope of the front opening and attached to the lower portion for preventing or reducing the likelihood that water or other debris can be driven through the vent by wind.

Abstract: A grease catcher includes lower mounting brackets that are mounted to the exposed end of an exhaust fan duct. A tubular body riser is coupled to the lower mounting brackets that has vertical walls that terminate at a top edge. The lid includes a central portion and downwardly extending sidewalls. The lid is spaced from the top edge of the body riser. An exterior housing is coupled to the body riser. The exterior housing has a floor and exterior walls extending upwardly from the floor. The exterior walls are spaced from the lid. The exterior housing is positioned concentrically about the body riser and the lid sidewalls are positioned concentrically about the body riser and concentrically within the tubular exterior housing to form an undulating airflow channel A removable grease absorber is positioned upon the exterior housing floor.

Abstract: A vent is disclosed that is particularly suited to use in ventilating attic spaces beneath a hip roof. The vent is configured to be installed along a hip of the roof overlying and covering a ventilation slot formed through the roof deck along the hip. The vent includes an elongated laterally flexible top panel from which baffle arrays depend. The baffle arrays are formed of a plurality of depending arcuately curved vanes that arc away from the vent. The vanes are aerodynamically shaped to redirect wind-blown rain and snow away from the vent and are configured to block the migration of rain and snow through the vent. A pair of spongy conformable filler strips is attached beneath the edge portions of the vent. The filler strips conform to the shapes of underlying shingles when the vent is installed to fill any gaps that otherwise might be formed between the vent and the shingles.

Abstract: A prefabricated construction wall assembly comprising: a frame structure having a first thermal expansion coefficient; and a panel configured for covering at least a majority of the a face of the frame structure, said panel having a second thermal expansion coefficient different from the first thermal expansion coefficient, and a solid-surface exterior face exposed to an exterior of the wall assembly and an interior face connected to the face of the frame structure so as to withstand the thermal structural differences between the frame structure and the exterior face.

Abstract: A ridge vent may cover a ridge slot in a roof of the structure to provide ventilation. A housing having a length, a width and a height that are sized to fit through a ridge slot of the roof includes a top portion proximal to the ridge vent, a bottom portion proximal to the interior of the structure and opposite to the top portion, and at least one wall extending between the top portion and the bottom portion. A securing mechanism is connected to the top portion of the housing to secure the housing within the ridge slot. An electronics bus is positioned within the housing and has an interface that enables operation of modular electronic devices that are removably positioned within the housing.

Abstract: A natural ventilator is herein disclosed that is free of moving parts, wind-activated, rain-proof, and free of dust or smog infiltration. It is not only suitable to be a standalone natural ventilator, but is also advantageous to be used as an enhanced exhaust exit in a forced-air ventilation system, for such enclosed spaces or objects as buildings and vehicles needing air relief. The ventilator assembly has rainwater-proof shapes or fixtures that serve to defend the vent system, and the interior space being vented, against rainwater invasion, even if raindrop trajectory becomes highly oblique from vertical as driven by strong winds. It also includes shapes or fixtures to prevent fume condensation from drifting outward and staining the exterior of a building or vehicle, or the like, that is being vented.

Abstract: A concealed roof vent has a base member having a primary aperture, a top panel coupled to the rear side of the base member and extending to the front side of the base member at an increasing angle, the top panel sized so as to shield the primary aperture; the top panel being coupled to the front side of the base member using one or more support legs; and at least one secondary aperture on the front side between the panel and the base member. Air from the attic passes through the primary aperture to the secondary aperture, through channels on the underside of roofing tiles, and to the atmosphere.

Abstract: A non-powered ventilator that prevents backdraft by forming a vortex forming area by internal and external airflows so as to smoothly exhaust indoor airflow to outside is proposed. The non-powered ventilator includes: a fixing member provided with a fixing flange part; a finishing cap part provided with a finishing cone part, an opening part, and a finishing flange part forming fastening holes; a discharging cap part respectively provided with a discharging cone part, a bent edge part, a discharging flange part, and fastening holes; a backdraft prevention member provided with a hemispherical curved plate body, at least three support legs, and opening parts, and a first bent part as well as a circular groove; and fastening members fastened and assembled by bolts and nuts through the fastening holes of the discharging cap part, the backdraft prevention member, and the fixing member.

Abstract: This application relates to roof vents with diverters that prevent or reduce the likelihood that water or other debris can be driven through the vent by wind. For example, a roof vent can include a lower portion and an upper portion attached to the lower portion at an upslope edge, the upper portion angling away from the upslope edge to create a space therebetween. The roof vent can also include a front opening between the lower portion and the upper portion at a downslope edge of the upper portion to allow airflow into and out of the space. The roof vent can include a diverter positioned downslope of the front opening and attached to the lower portion for preventing or reducing the likelihood that water or other debris can be driven through the vent by wind.

Abstract: An anchor support and roof vent for a pitched roof, comprising a support member having a first end and a second end, the support member being sized so that the first end is fixable to a first roof truss and the second end is fixable to a second roof truss, an anchor line attachment fixable to the support member, and a roof vent cover attachable over the anchor support member.

Abstract: A fiber cement soffit comprising a first major face, a second major face, an intermediate portion positioned between the first and second faces and an edge portion surrounding the intermediate portion such that the first and second faces, intermediate portion and edge portion together form a panel of predetermined thickness; and a plurality of apertures extending between the first and second major faces of the soffit through the predetermined thickness forming a vented portion wherein the apertures comprise between approximately 8% and 28% of the total surface area per linear foot of each of the first major face and second major face of the vented portion such that the net free ventilation provided per linear foot of the fiber cement soffit is between 10 and 16 square inches.

Abstract: A rollable ridge vent for covering an open ridge of a roof and for allowing a flow of air to exit from the open ridge through the ridge vent includes a top panel having a center portion, a left side portion, and a right side portion, in which the top panel includes a plurality of louvers for allowing a flow of air to exit the ridge vent. In addition, the rollable ridge vent includes a spaced apart series of inner walls and a spaced apart series of outer walls extending downward from the left side portion of the top panel. The spaced apart series of inner walls and the spaced apart series of outer walls of the left side portion are staggered. The rollable ridge vent also includes a spaced apart series of inner walls and a spaced apart series of outer walls extending downward from the right side portion of the top panel. The spaced apart series of inner walls and the spaced apart series of outer walls of the right side portion are staggered.

Abstract: A system for flashing a mount of a photovoltaic assembly on a surface includes a flashing assembly. The flashing assembly includes flashing that extends across an interface of the mount and the surface when the mount is attached to the surface. The flashing assembly also includes tape attached to the flashing. The tape includes a first attachment area and a second attachment area. The flashing assembly has a first configuration in which the first attachment area is attached to the flashing and the second attachment area is unattached, and a second configuration in which the first attachment area is attached to the flashing and the second attachment area is attached to the surface. The tape is movable with the flashing as an assembly when the flashing assembly is in the first configuration.

Abstract: A roof vent for ventilating a roof of a building via a hole in the roof to atmosphere, the roof vent comprising: a flange portion for resting on the roof, the flange portion having an opening for overlapping with the hole; a frame portion for maintaining a cap in a spaced apart relationship with the flange portion; the cap connected to the frame portion and covering over the opening; and an integrated shield mounted on the flange portion and extending transverse to the flange portion on a side of the flange portion configured for facing a peak of the roof, the integrated shield spaced apart from the frame portion by a predefined distance and for deflecting water running down the roof to either side of the roof vent.

Abstract: An attic vent has a base component, a dome-shaped cover, and a mounting mechanism for mounting the dome-shaped cover onto and over the base component. The base component has a mounting plate with a vent opening having a vertical wall surrounding the vent opening and extending upwardly from the mounting plate and to an upper rim. A diverter extension wall extends upwardly from the upper rim on a plane that is orthogonal to the mounting plate, and further an open grill extends upwardly from the upper rim at an inward angle from the diverter extension wall. The dome-shaped cover extends outwardly and downwardly to a bottom edge, while covering the open grill. The mounting mechanism further extends downwardly over the vertical wall and is spaced from the mounting plate.

Abstract: There is disclosed a snow proof roof vent for ventilating the roof of a building to the atmosphere. The improved roof vent includes a flange portion dimensioned and configured to lay against the roof, the flange portion having a central opening to let air vent from the attic. The roof vent further includes a collar portion extending from the flange portion and enclosing the central opening and a cap dimensioned and configured to cover over the collar portion and cover over the central opening. The cap is dimensioned and configured to provide a passage through which air can pass between the atmosphere and the central opening. The collar portion also includes a filter plate enclosed by the cap and interposed between the central opening and the passage, the filter plate having a pore size sufficient to permit air to pass through but block the passage of snow.

Abstract: A roofing article having a body, a first channel defined within an upper portion of said body having an inlet through which outside air can enter the first channel, and a second channel defined in a lower portion of said body. A sheet separates the second channel from the first channel. The second channel is operably connected to the first channel through an orifice in the sheet such that the outside air can enter the second channel through the orifice.

Abstract: Roof-mounted venting devices adapted for use with roof mounted photovoltaic (PV) panels are provided. Venting devices and assemblies can include a replacement flashing that fits over a cut-down roof pipe vent as well as venting assemblies that redirect airflow from a roof pipe vent. Such replacement flashing can include a substantially planar flashing portion having a raised portion for accommodating any residual flashing or roofing debris. Such replacement flashing may further include a hood portion with one or more vent openings to allow airflow into and out from the interior of the hood portion. Venting assemblies can include a coupling portion for mating with a vent-pipe, a section of hose or piping to redirect airflow, and a venting portion disposed outside or between roof-mounted solar panels.

Abstract: A roof-mounted venting device or assembly adapted for use with roof mounted photovoltaic (PV) panels is provided. Venting devices and assemblies can include a replacement flashing that fits over a cut-down roof pipe vent as well as venting assemblies that redirect airflow from a roof pipe vent. Such replacement flashing can include a substantially planar flashing portion from which protrudes a hood portion with one or more vent openings to allow airflow into and out from the interior of the hood portion. The vent openings can be configured as a series of louvered openings that open in a down-roof direction to prevent flow of run-off and debris into the hood portion. Venting assemblies can include a coupling portion for mating with a vent-pipe, a section of hose or piping to redirect airflow, and a venting portion disposed outside or between roof-mounted solar panels.

Abstract: A ventilated roof features an elongated vent having a vent opening and an elongated vent shingle supporting surface. The vent opening is in fluid communication with a slot defined by the top surface of a roof deck and communicating through the roof deck. An end cap has an end cap shingle supporting surface and is located adjacent to an end of the elongated vent. The vent and the end cap adjacent to the vent are supported in an equivalent spaced-apart relation to the top surface of the roof deck. The elongated vent shingle supporting surface, the end cap shingle supporting surface and the top surface of the roof deck provide a substantially continuous support to a shingle overlapping any two of those elements.

Abstract: This application relates to ventilation systems, more particularly to roof ventilation systems that help to protect buildings against fires. The roof vent has an ember impedance structure that impedes the entry of flames and embers or other floating burning materials while still permitting sufficient air flow to adequately ventilate a building. Several configurations of vents employing baffle members and fire-resistant mesh material are described, which can substantially prevent the ingress of floating embers and flames.

Abstract: Aspects of the invention provide a roof vent comprising a first portion, a second portion, a third portion, and a fourth portion. The second portion is connected to the first portion. The third portion is connected to the second portion and defines one or more openings therein. The fourth portion is connected to the third portion. In a first region of the roof vent when the first portion and the third portion are resting on a horizontal surface, the second portion angles upward away from the first portion and the third portion angles downward towards, but does not contact, the first portion so as to create a gap in a bottom of the roof vent in gaseous communication with the one or more openings. In a second region of the roof vent, the second portion is substantially coplanar with the first portion, and a part of the second portion is pressed directly against a part of the third portion, which is pressed directly against a part of the fourth portion.

Abstract: A machine that improves the management of thermal energy for a residence or other building by serving as both a swimming pool 26 water heater and an attic space 22 ventilator. The heating of air within an attic space 22, resulting primarily from the insolation of the roof surface 24, is exploited to heat water 26. The device consists of an air-to-water heat exchanger coil 28, a fan 30, an air outlet passage 32 between the attic 22 and the outside air with the necessary mounting 90 and weather excluding structure 86. When water heating is not required, the device retains its attic ventilation function in order to reduce the cooling load on the air refrigeration system for the building. The device may be used as either an alternative to a fuel burning or electric powered water heater or as a means to minimize the use and expense of such heaters.

Abstract: A passive vent for venting a building enclosure having an opening in a roof portion, the vent being adjustable for mounting on roof portions of different slopes. The vent has a base pivotally attached to a vent structure with a pair of pivot joints. The vent structure has a collar attached to a vent body having a cover. At least one gas permeable screen is positioned on the vent body between the cover and the collar. The base comprises a lower attachment structure for attaching the base to the roof portion over the opening. An aperture through the lower attachment structure permits gas to pass in to and out of the opening in the roof portion through the base. A wall including a pair of opposed curvilinear wall sections surrounds the aperture. The pivot joints define a pivot axis about which the vent structure pivots along a range of angles relative to the base.

Abstract: A roof ventilation system operable based on environmental parameters is disclosed. The system includes a vent, a fan, a solar panel, a battery and a controller. The vent is positioned within a field of a roof, and includes a first opening configured to allow airflow between regions above and below the roof. The fan is positioned to generate an air flow through the vent. The solar panel is positioned on the roof in a location such that the solar panel receives solar radiation. The battery is electrically connected to the solar panel. The controller is in communication with the fan, and is configured to drive the fan based on at least one environmental parameter.

Abstract: A roof deck intake vent is provided. The roof deck intake vent includes a first portion connected to a second portion. The first portion is further connected to an upper edge and the second portion further connected to a lower edge. Opposing first and second side walls are connected to the first and second portions. The opposing first and second side walls extend from the upper edge to the lower edge. The first and second side walls form an extension having a lower surface. The first portion, upper edge, and the extension cooperate to form an air intake, such that air entering the roof deck intake vent enters the vent through the lower surface of the extension when the vent is installed on an edge or eave of a roof.

Abstract: A ventilation device includes a passage unit (100), a wind turbine (200) and a fan (300). The wind turbine (200) is provided above the passage unit (100), and the fan (300) is provided within the wind turbine (200). The rotation of the wind turbine (200) drives the fan (300) to rotate, so that the air within the passage (100) is exhausted by the fan.

Abstract: An adjustable roof jack, having: a flange; a first tapered cylinder fixedly connected to the flange; a second tapered cylinder rotationally connected to the first tapered cylinder; a vent cap tapered cylinder rotationally connected to the second tapered cylinder; and a vent cap assembly fixedly attached to the vent cap tapered cylinder.

Abstract: A water-resistant apparatus is provided. This water-resistant apparatus is positioned near a photovoltaic module. The water-resistant apparatus includes hollow, elongated conduits, and each conduit can hold water with surface tension based on exposure of the conduit to water. The surface tension causes a formation of a meniscus that inhibits a flow of water through the conduit.

Abstract: An adaptable vent baffle mountable to an underside of a roof deck and to a wall plate of a building structure between a pair of roof rafters having a rafter spacing for permitting ventilation between a soffit and an attic space of the building structure. A main body portion has a longitudinal axis and is positioned generally on a main body place. A spacer extends from the main body portion and a tail portion is hingedly mounted to the main body portion. The main body portion and tail portion include first and second side edges and a baffle width is defined between the first and second side edges. At least one line of weakness extends generally parallel to the longitudinal axis for modifying the baffle width to adapt to the rafter spacing.

Abstract: A roof ventilation system operable based on environmental parameters is disclosed. The system includes a vent, a fan, a solar panel, a battery and a controller. The vent is positioned within a field of a roof, and includes a first opening configured to allow airflow between regions above and below the roof. The fan is positioned to generate an air flow through the vent. The solar panel is positioned on the roof in a location such that the solar panel receives solar radiation. The battery is electrically connected to the solar panel. The controller is in communication with the fan, and is configured to drive the fan based on at least one environmental parameter.

Abstract: A rotatable vent assembly system for areas where breathable airflow is required is disclosed herein. The rotatable vent assembly system improves airflow in any structure where breathable airflow may be a concern, including but not limited to air vacuum vaults, valve vaults, water tanks, pressure reducing valve units, or other confined structures. The rotatable vent assembly system helps reduce frost accumulation within riser pipes during winter months and improves breathable air within confined spaces. By reducing the accumulation of frost, the potential for pipe breakage is reduced, also reducing maintenance and replacement costs to municipalities and property owners for burst pipes. Rotating the vent control component at the top of a riser pipe connected to a pipe system controls the flow of breathable air by increasing or reducing airflow within the pipe system.

Abstract: A roofing article having a body, a first channel defined within an upper portion of said body having an inlet through which outside air can enter the first channel, and a second channel defined in a lower portion of said body. A sheet separates the second channel from the first channel. The second channel is operably connected to the first channel through an orifice in the sheet such that the outside air can enter the second channel through the orifice.

Abstract: A vent baffle can be arranged so as to direct air near an underside of a roof. The vent baffle can feature bending structures, which can allow the vent baffle to transition from a substantially columnar orientation to a bent orientation.

Abstract: A roof vent and a roof structure are described. A roof vent can include a baffle with a cross-section where a first portion extends upward from a bottom plate and a second portion extends from the first portion to define a space between the bottom plate and the second portion. A roof structure may or may not have a roof deck, and comprises a plurality of roof cover elements with a radiant barrier layer underneath the top surfaces of at least some of the roof cover elements. In another embodiment, a roof structure may comprise more sheathing layer vent members than roof cover layer vent members. In yet another embodiment, a roof structure may comprise a layer of roof tiles with at least one vent member, the vent member comprising lateral end portions of a base member with a non-planar profile to engage a similar profile of an adjacent roof cover element.

Abstract: An adjustable roof ventilator has a base, a ventilation assembly and an interlocking arrangement for securing the ventilation assembly to the base at a desired tilt angle. The base has a bottom peripheral flange mountable on a pitched roof, and an elbow member upwardly projecting from the flange. The ventilation assembly has an upper venting arrangement in communication with a lower duct portion having front, rear and side walls defining a cross-sectional configuration tiltably mountable on the elbow member. The side walls have lower rounded front edges and the front wall has a lower edge extending between upper ends of the rounded edges so that the rounded edges are in pivotal engagement against the flange of the base as the rear wall of the duct portion is in sliding engagement against a curving rear wall of the elbow member when the duct portion is tiltably mounted on the elbow member.

Abstract: A ventilated roofing structure includes a modular roofing panel unit adapted to form part of an outermost layer of a roof, a wall unit which is secured to the roofing panel unit, and which extends downwardly to terminate at an anchored end to partition a space under the roof into outside and inside spaces, and which has a ventilation opening communicating the inside and outside spaces, and a modular drainage-route forming panel unit which is fastened to an overhanging eave of the roofing panel unit to form a gap therebetween. The drainage-route forming panel unit extends downwards to separate the outside space into an airflow transit chamber and an outdoor space, and has an anchoring edge secured to the anchored end, and a drainage port communicating the airflow transit chamber with the outdoor space.

Abstract: A ridge ventilation system includes a plurality of ridge vent sections configured to be arranged end-to-end along the ridge of a roof covering a vent slot formed therealong. Each ridge vent section has an elongated longitudinally flexible top panel with a central portion, edge portions terminating at extreme edges of the top panel, and ventilation grids extending beneath and along the edge portions spaced from extreme edges thereof. The space between the extreme edges of the top panel and the ventilation grids forms or defines an overhang configured to receive edges of shingles in a course of shingles installed next to the vent section and to inhibit the edges of the shingles from rising up. The ridge vent sections also have depending deflectors for deflecting blowing rain and snow that might enter through the ventilation grids and filter fabric may be affixed to the bottom of the ridge vent sections to provide additional deflection of rain and snow.

Abstract: A dual air cavity roof has a continuous upper cavity which is cooled by fans, while the lower cavity is generally sealed. Preferably the cavities are separated by a radiant barrier. The fans are preferably powered by one or more photovoltaic cells that are also disposed on the roof. The roof can be pre-cooled with cooler night air and fans only activated when necessary to remove heat from the solar load on the upper cavity. When it is desirable to remove heat, the fan speed is optimized in each zone of the roof to enhance the natural convective flow to the optimum level. A radiant barrier can also cover the roof substrate, which is optionally an existing roof that is in need of repair. The roof structure is preferably assembled in parallel modules using insulating support brackets that support the outer surface and the barrier that separates the upper and lower cavity.

Abstract: A vent hood and flashing assembly for use on a metal roof. A vent hood overlies and is joined to flashing. A cover and a screen overlie an upper end portion of the flashing to exclude rain, snow and pests. The flashing includes a resilient, flexible, water-repellant, flexible flange that extends outward from, and is attached to, a lower end portion of the flashing and a flexible, ring seal that overlies an upper surface of the flange. The assembly can be placed over a projection through an opening in a metal roof such that the cover and screen overlie an upper end of the projection and with the flashing surrounding the projection, and the flange can be bent to sealingly conform to the roof surface and secured thereto by fasteners.

Abstract: A dual air cavity roof has a continuous upper cavity which is cooled by fans, while the lower cavity is generally sealed. Preferably the cavities are separated by a radiant barrier. The fans are preferably powered by one or more photovoltaic cells that are also disposed on the roof. The roof can be pre-cooled with cooler night air and fans only activated when necessary to remove heat from the solar load on the upper cavity. When it is desirable to remove heat, the fan speed is optimized in each zone of the roof to enhance the natural convective flow to the optimum level. A radiant barrier can also cover the roof substrate, which is optionally an existing roof that is in need of repair. The roof structure is preferably assembled in parallel modules using insulating support brackets that support the outer surface and the barrier that separates the upper and lower cavity.

Abstract: A ridge ventilator for covering an open ridge of a roof while promoting ventilation of a space beneath the roof. The ridge ventilator has a sectional body having a first side and a second side, a number of partitions extending across said body between said sides, as well as a first end and a second end. The vent body has a width between said sides to permit said body to be laid over and cover an open ridge in a roof formed at the peak. The body also includes a recessed middle portion in a top face of the body, the recess being sized and shaped to accommodate roofing cap shingles. The body also includes opposed raised and curved, in side view, air foil side sections; which have a grill to permit air to pass therethrough between a space beneath said roof and the outside, the air foil side sections being sized and shaped to create, in a wind passing over the air foil sections, a low pressure adjacent to the grill to facilitate drawing air out of the space.

Abstract: A vent for a tile roof is disclosed. The vent includes a first member preferably substantially formed of a metal, a second member preferably substantially formed of a plastic material, and a connector attached to the underside of the second member. The second member is positioned below and spaced apart from the first member. The first and second members together define a ventilation gap therebetween. The first member and second member are preferably releasably connected to each other. The connector is configured to connect with an air conduit. The connector is further configured to be compatible with a plurality of sizes and types of air conduits. The ventilating access and the connector are together configured to permit airflow between above the roof and the air conduit.

Abstract: A roof ventilation apparatus for a sloped roof having a cap and base plate is provided. The cap has a top surface and a bottom surface. The bottom surface has a flange that defines an opening to a cavity formed between the top and bottom cap surface. The cavity provides a path for air exchange from a roof opening through an air passage formed between the flange and cap top. The base plate has a collar or curb surrounding an aperture that fits inside the cap bottom cavity. The base plate preferably is shaped such that when installed on the sloped roof the cap entirely covers the base plate. Preferably, the base plate includes a collar and an angled edge configured to channel moisture that seeps within the vent cap.

Abstract: 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.

Abstract: A passive venting device for venting enclosures comprising a base member, an intermediate splash member including a diverter, and a top, dome-shaped member. In a preferred embodiment, the diverter may be molded as a single unit of manufacture with the base member. The venting device allows air and other gases to escape from within an enclosure to be vented while preventing the intrusion of moisture, such as rain or snow, into the enclosure.

Abstract: A baffled insulation product for ventilating air under a roof from an open space is provided comprising an elongated insulation mat having top and bottom major surfaces, the top major surface facing the roof when the product is installed in the open space, the insulation mat having a baffle integral therewith proximate to the top major surface, comprising at least one airflow channel for the ventilating air.

Abstract: A roof vent construction which is comprised of an assembly including a cowl, a base, and a cowl retaining member. These elements provide a structure which provides cover for rain and discourages rain and/or debris from entering the vent underneath the cowl, but nevertheless allows for suitable ventilation as needed. One concept relates to the use of a vent structure having a base with ventilation and water/debris channeling features, combined with a cowl that has ventilation features, with the base and vent cooperating to provide particular ventilation paths that provide water drainage. This vent structure may be flat or profiled.

Abstract: An attic soffit ventilation system configured to enable ventilation of a building having an attic and a soffit is provided. The system comprises a vent attached over an opening in the soffit. The vent has a vent flange that extends through the soffit opening. The vent is configured to allow air from an area exterior to the building to enter through the soffit. A flow conduit is provided having a lower portion, an extension portion and an attic aperture. The lower portion is configured to align with and connect to the vent flange. The extension portion of the flow conduit extends into the attic to the extent that the attic aperture is positioned in a non-insulated attic space. Air from the area exterior to the building can flow though the vent and through the flow conduit to the attic space.