Abstract: An indoor unit includes a rear housing in which a heat exchanger and an electrical component box are disposed, a front housing disposed in front of the heat exchanger such that the front housing is removable, a front design panel disposed in front of the front housing such that the front design panel is removable, a securing and storage part into which a communication adapter is secured, and a temporary placement part for the communication adapter. The securing and storage part is disposed in the front housing such that the securing and storage part is exposed when the front design panel is removed. The temporary placement part is used to temporarily place the communication adapter on the temporary placement part.

Abstract: Louvered roof systems are provided with one or more louvers. Such louvers can be combined in an assembly that is movable between an open condition and a closed condition. In the closed condition, louvers in the assembly engage one another. In such engagement, a leg extending generally transversely from one louver may include a wing that extends generally transversely to the leg and that abuts a surface of an adjacent louver. Additionally or alternatively, in such engagement, a leg extending transversely from one louver may be received in a notch in an adjacent louver. An end cap can include a downwardly extending flange that directs liquid flow from a louver's top surface and past its bottom surface to form droplets or streams to fall from a lower part of the flange and prevent travel of the liquid flow along the bottom surface of the louver.

Abstract: Described herein is a gas-liquid separating gas exchange device comprising a vent mechanism that services gas exchange between the interior and exterior of a housing, a shelter of the vent mechanism distal from the housing that provides shelter of a distal area around the vent mechanism, an area-encompassing abutment rising distally from the housing and encompassing both the vent mechanism and the shelter and creating a fluid-catchment junction between the shelter and the abutment, and at least one fluid-exchange passageway in the at least one shelter allowing fluid exchange between the distal sheltered area and the abutment into the fluid-catchment junction. The gas-liquid separating gas exchange device may separate gas and liquid by gravity, energy of vibration, air-pressure forces, or a combination thereof and facilitates expulsion of contaminating liquid and debris from the housing.

Abstract: A flue damper may include a flue pipe with a first side leading to an outlet of the flue damper and a second side leading to an inlet of the flue damper. A damper gate may be included and have an open state and a closed state, where in the open state, the first side of the flue pipe is in fluid communication with the second side, and where in the closed state, the damper gate interrupts fluid communication between the first side and the second side. A float may be secured to an upper surface of the damper gate. The upper surface of the damper gate may face the first side of the flue pipe when the damper gate is in the closed state such that the damper gate at least partially opens when condensate collects within the first side of the flue pipe.

Abstract: An air handling unit for use with a heating, ventilating, and air conditioning (HVAC) system includes an air input portion configured to receive conditioned air. The air handling unit also includes an air output portion configured to direct the conditioned air to an interior space of a structure. The air handling unit further includes a routing portion configured to couple the air input portion to the air output portion in fluid communication. The routing portion also includes a contouring structure configured to interface with the structure.

Abstract: A gas outlet extender allows for relocation of existing medical gas outlets to positions that are more ergonomic to care-givers at the point-of-use. In various aspects, the gas outlet extender may take one source of gas supply and provide the facility with a plurality of separate sources of that gas supply. By taking measurements of various parameters of the gas supply, an installer may obtain confidence that the gas flow for each of the plurality of separate sources meets regulatory requirements.

Abstract: A vent cap assembly for use with a drain waste vent pipe under roof-mounted photovoltaic (PV) panels is provided. Such vent cap assemblies are adapted to fit over a cut-down roof vent pipe to maintain airflow from the vent pipe and prevent debris from entering the pipe. Vent cap assemblies can include a cap portion and a mounting bracket, the cap portion having an inner cavity accessed through an opening in an underside of the cap and the mounting bracket having one or more inwardly extending elongate members for engaging an outer surface of the vent pipe to secure the cap assembly to the pipe. The mounting bracket can include multiple inwardly extending tabs distributed about the bracket that laterally deflect and securely engage the vent pipe when the cap assembly is pressed onto the pipe.

Abstract: Improved, non-fragmenting, high efficiency vent apparatus (10, 78) are provided for protecting a structure (12) from potentially damaging or destructive abnormal pressure conditions. The apparatus (10, 78) is positioned in covering relationship to a vent opening (14) formed in the structure (12), and generally includes a burst member (16) and a tab assembly (18) equipped with a series of tabs (56); the tabs (56) bend or buckle to a burst member-clearing position when the vent apparatus (10, 78) experiences an abnormal pressure condition, thereby permitting rapid opening of a central section of the burst member (16) to thus protect structure (12). The burst member (16) may be of domed or flat construction, and can be in the form of a quadrate panel or any other desired shape.

Abstract: A complementary coupon assembly affixed to a door handle assembly is described. The coupon assembly comprises a seat rail and pad base post, whereby a paper-based or electronic coupon book resides on the surface of the pad base post.

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: A passive cooling system routes air from an enclosure to an ambient environment, via a chimney effect, through one or more indirect pathways and re-directs environmental elements received from the ambient environment. One or more vanes are arranged within an interior space, such that the vanes collectively form one or more indirect pathways to the ambient environment. The vanes preclude environmental elements, including precipitation and particulate matter, from passing through the interior space and into the enclosure. Environmental elements are re-directed by one or more of the vanes, at least in part, to an exterior of the passive exhaust system. Dampers may be adjusted to control airflow through the passive cooling system and restrict environmental elements from entering the passive cooling system. Liquids received from the ambient environment may be re-directed into a reclamation system for use in a cooling system.

Abstract: A pitch adjustable ridge ventilator preferably includes a plurality of adjustable pitch members, a pair of perforated members, a pair of perforated support members and a pair of U-shaped drip members. The adjustable pitch members are bendable to a particular angle. A first perforated support member is attached to a bottom of a first perforated member and a first side of the plurality adjustable pitch members. A second perforated support member is attached to a bottom of a second perforated member and a second side of the plurality adjustable pitch members. The first and second perforated support members are attached to a roof. Roof sheathing is attached to a top of the plurality of adjustable pitch members. A U-shaped drip member is attached over the roof sheathing and located under the perforated member. Each end of the pitch adjustable ridge ventilator is terminated with an end plate.

Abstract: Disclosed is a fixing structure for ventilator cover spring, comprising a fixing component, a connector, a movable part, and a cover spring. The fixing component is a U-shaped protrusion formed on a cover and has a top wall and two leg walls, a first opening and a second opening are respectively formed in the two leg walls. Two cuts are formed at two ends of the connector, wherein each cut is provided with a tongue, the connector being inserted through and fixed in the first opening and the second opening. The movable part has a head portion and a foot portion, wherein the head portion is fixed on the connector, and the foot portion extends toward the top wall. The cover spring is fitted over the foot portion and is confined on the foot portion.

Abstract: A wall ventilation screen to be used in exterior walls of buildings or vehicles for protecting against rain water and other elements while simultaneously enabling air flow. The screen includes a plurality of air passages that enable air flow from one side of the screen to the other but preferably without linear communication between both sides through the air passages. The air passages present an upwardly traveling trajectory from an exterior or exposed space to a protected space, preferably with lateral changes of direction as well. Therefore rain water that comes directly from precipitation or splashing from an adjacent surface cannot reach a protected space. The geometry of the air passages provides protection against other environmental or man made elements.

Abstract: An apparatus for retrieval of vapors or gases produced during the hair styling process comprises: a vacuum nozzle housing, an attachment bracket, a styling iron, a vacuum and at least one filter.

Abstract: A ridge vent end cap that can be readily bent to conform to roofs of varying pitches while enclosing ridge vents of various styles. The end caps are bent and fashioned for a flat blank, which is configured to allow it to be bent and formed into a shape that accommodates various styles of ridge vents and that encloses ridge vents on roofs with varying pitches. The bent finished end cap has a top ridge beam and a pair of end panels, bottom flaps and corner flaps. Each corner flap has its own top corner flap and a bottom corner flap. A preformed key hole slot along the central axis/plane of the blank or finished end cap allows the end cap to bend without buckling so that the end panels slide over one another to enclose the end open of the ridge vent while conforming to the pitch of the roof. A tooth is formed in one of the bottom flaps, which bites into the roof shingles helps ensure that the end panels cannot be pried up or burrowed under by rodents and insects.

Abstract: A vent including: a flange forming an outer periphery of the vent and having a substantially rectangular shape; an extruded portion extending outwardly from an inner portion of the flange; and a louvered section disposed in an area inside the extruded portion, the louvered section including a plurality of louvers each having an angled section disposed at an angle with respect to the flange, wherein the flange, the extruded portion, and the louvered section are formed as a single unitary piece.

Abstract: There is disclosed a roof vent having rain control means to reduce rain water splashing into the opening in a roof vent. The baffle has a number of ridges or channels that direct rain water into a number of droplet pathways. The falling water creates a rain curtain that deflects rain water that enters into the roof vent from travelling into interior of the building. At the base of the roof vent is one or more splash deflectors that changes the angle of water impacting the base of the roof vent to limit the amount of deflected water that can enter into the opening in the roof vent. The rain curtain and one or more splash deflector may act in concert to further divert rainwater.

Abstract: An external guard for placement over a vent, having front, lateral and bottom sides each formed by a plurality of generally parallel bars or rods spaced apart to block passage of a bird between bars. The bars are shaped and positioned to define a frusto-pyramidal shape for the guard. The rear side of the guard opens toward the vent. The top side of the guard has a cover. There are no cross bars across the bars along the lateral sides, the side front and the bottom side of the guard and none at the intersection of the front and bottom sides of the guard.

Abstract: A vent sealing device includes an elongated tubular member having an inner tube with a collar at the upper end of the inner tube, and a cap having an upper interior surface configured to receive the inner tube assembly, a lower interior surface configured to receive said outer tube, and a screen configured to remove debris positioned along the top of the assembly. A vent sealing system includes a roof attachment unit that includes an elongated base structure having an opening that includes a flexible sleeve protruding outward therefrom.

Abstract: The present invention is a vent cover, kits comprising the vent cover and methods of using the vent cover to direct air flow from a ventilation duct such as those found in homes and businesses. The vent cover has a base, a plurality of concentric segments retractably connected to each other and the base; and a locking element connected to the base and surrounded by the innermost concentric segment. The locking element opens and closes the vent cover. In the open position the plurality of segments are expanded outward from the base allowing air to pass through the vent cover. In the closed position the plurality of concentric segments are retracted flush with the base preventing air from being released from the vent cover.

Abstract: A method for creating rainwear that is waterproof yet allows the body's heat and moisture to vent is disclosed, including a shell and a liner, wherein the shell material is waterproof, and the liner material is waterproof and may or may not be breathable and vents placed at intervals in the fabric of the liner that allow for free air flow between the interior and exterior of the garment to achieve breathability by virtue of the vents. The garment may be made of materials that are inherently flame resistant for use where there is a danger of flash fire, such as high-voltage electrical work and petroleum production. In some embodiments, vents are inserted within apertures defined by a garment and include a base with inner and outer ridges surrounding a central opening and a cover having a perimeter extending between the inner and outer ridges.

Abstract: The invention relates to a cover for at least one air-conditioning device arranged on a cladding element, in particular of a switchgear cabinet. The cover has a cover housing having a front wall and side parts connected thereto. The side parts keep the front wall at a distance from the cladding element. At least one holder for the cover housing is fitted to the cladding element. According to the invention, the holder comprises vertical hook elements into which the cover housing can be suspended by hook receptacles in the direction of gravity.

Abstract: A louvered vent cover includes a pest guard cover, a louver frame and a vent duct attachment. The pest guard cover has a grilled guard and is mounted on the louver frame by means of pins. The louver frame contains several louvers which permit one-way passage of the air to the exterior of the building. The louver frame is mounted to the vent duct attachment by means of tabs and a clip. The vent duct attachment is adapted to fit within a vent duct. The louvered cover may be mounted over a vent duct in a new construction, or, without use of the vent duct attachment, may be mounted over an existing vent duct cover.

Abstract: A vent cap may include a hollow tube comprising a side wall defining at least one airway; a cap coupled to a first end of the hollow tube, the cap configured to deter one or more unwanted objects from entering the hollow tube through the first end; and a mesh material covering the at least one airway, the mesh material configured to allow air to pass through the at least one airway, the mesh material configured to deter the one or more unwanted objects from entering the hollow tube through the at least one airway. The vent cap may comply with one or more plumbing and/or building codes.

Abstract: An improved exhaust fan housing, and exhaust fan assembly so characterized, is generally provided. The exhaust fan housing includes a first cylindrical or conical element, a second cylindrical element interior of the first cylindrical element, and a plurality of hollow vanes traversing an annular fluid passage chamber delimited thereby and uniting the first and second cylindrical elements. A central drive chamber, delimited by the second cylindrical element, is in fluid communication with ambient air exterior of the first cylindrical element via the hollow vanes. Each hollow vane is characterized by spaced apart wall segments which unitingly terminate so as to delimit a leading edge for each hollow vane, each of the spaced apart wall segments having a free end or a closed end delimiting first and second trailing edges for the hollow vanes.

Abstract: Provided, herein is a bird proof exhaust vent apparatus, the apparatus comprising a top portion, the top portion comprising a vent inlet opening disposed for connection to an exhaust vent of a building structure, the exhaust vent apparatus further comprising a sidewall portion in connection with the top portion, the sidewall portion comprising an vertically oriented elongate sidewall portion forming a conduit and terminating in an outlet opening, wherein the conduit has a cross-sectional, dimension that is less than the wingspan of a target bird.

Abstract: A ridge vent with powered forced air ventilation is configured to be installed along the ridge of a roof covering an elongated ridge slot on either side of the ridge. A blower is mounted in a blower opening formed at a predetermined location along the ridge vent on one side of the ridge and includes a blower housing forming an inlet within the attic and an outlet oriented to force air upwardly through the vent slot to be expelled through the ridge vent. A pair of baffles are hingedly secured to the blower housing adjacent its outlet and can be attached to a roof deck to secure the blower and help to isolate its outlet from the attic space below. An impeller is disposed in the housing and is driven by an electric motor.

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: A cover structure for an outdoor casing includes a top cover and an inner cover-brow. A side wall is formed on the periphery of the top cover. The inner cover-brow has a first brow plate and a second brow plate. An inclined plate interconnects the first brow plate and the second brow plate. The inclined plate has a plurality of through holes. The second brow plate is connected to the side wall. The interior included angle of the first brow plate and the inclined plate is an acute angle. The cover structure not only helps the outdoor casing to ventilate and dissipate heat, but also enhances the outdoor casing's water repellency.

Abstract: A method for installing a roof vent includes the steps of providing a base component having an outer flange having a bottom surface and surrounding a central opening; providing a top cover; mounting the top cover on the base component over the central opening to permit the air to flow through the central opening, but to exclude water from entering the central opening; and welding a riser box on the bottom surface of the base component around the central opening, the riser box being sized and shaped to fit around the curb of the roof. The base component is then mounted onto the curb such that the base component covers the building venting aperture and the riser box fits around the curb.

Abstract: There is disclosed a vent cover, comprising a hood and a deflector, for covering a vent and is adapted for mounting to a surface with a vent. The hood, defining an inlet and an outlet, is configured to direct air flow between the inlet and the outlet. The plane of the outlet is substantially perpendicular to the plane of the inlet. The deflector comprises a first wall which extends from the hood and is adjacent to the outlet. The deflector further comprises a second wall which extends from the first wall and is substantially parallel outlet plane. The deflector is adapted to substantially block air flow from an exterior of the vent cover into the outlet in a substantially perpendicular direction to the outlet plane. The first and second wall define an air channel in communication with the outlet and is substantially parallel to both the inlet and outlet planes.

Abstract: A duct vent cover attaches to an exterior wall at a duct exhaust point. The duct vent cover comprises a hood, mounting bracket, and a paddle wheel. The duct vent cover shields the duct vent from weather effects. The paddle wheel deters the ingress of wildlife, such as, for example, birds, squirrels and other animals which nest in vents, while allowing the egress of exhaust air, lint, and other debris.

Abstract: A duct for a dryer includes an intake duct provided with a discharge part formed with a discharge hole for discharging air therethrough and a coupling hole formed around the discharge part; and a contact prevention part seated in the coupling hole and spaced apart from the discharge part.

Abstract: A protective cover is provided for a ventilation opening in a plant space of a nuclear-engineering plant. The cover is configured, with a construction that is simple, and with simple manufacture and mounting, for a sufficient air-flow cross section and also for protection against ingress of destructive projectiles into the building interior. The protective cover has profile elements, which are arranged in a mounting plane in a rectangular frame, are aligned in a longitudinal direction such that they are parallel to one another, and are shaped in the same way and orientated in the same way. The relevant profile element has an L-shaped or V-shaped cross section with two limbs that meet in a peak, with the peaks pointing in the transverse direction. A spacing between profile elements that immediately follow each other is chosen such that there is no rectilinear passage between them.

Abstract: A vent cover for covering an opening in a building structure to vent its interior is provided. The vent cover includes a hollow cover member with an open bottom for positioning over and covering the opening in the building and a front end with an opening. A grill is removably secured in the opening in the front end of the cover member. The grill has a plurality of partitions. Each of the partitions is defined by intersecting members, which have a tapered cross section for accelerating the flow of air through the grill. The grill also has a splash guard and an overhang structure optimal for preventing rain, snow and water from entering the grill and the opening in the building structure. The cover member may be aerodynamically shaped for use atop vehicles such as trailers and RVs.

Abstract: A ventilation vent cap includes a cylindrical main body fitted into a duct placed in the exterior wall of a building so as to communicate between an interior and an exterior; a shielding portion disposed in the exterior via a support member attached to an outdoor-side end surface of the cylindrical main body; and a cover portion blocking vertically an upper part of an air passage extending between the outdoor-side end surface and the shielding portion. The shielding portion is in the shape of a cone whose apex is located in the air passage and above an opening upper end of the cylindrical main body.

Abstract: A vent for a building has a cover attached to a base. The base has an aperture permitting gas to pass. A moisture directing means on an underside of the cover directs moisture move under the influence of gravity to fall outside of the aperture. The cover may include a slanted side wall portion, with the aperture positioned with its center displaced from the center of the cover toward the slanted side. The base may include a pair of moisture deflecting features along at least a portion of one of the nonslope sides to prevent moisture flowing along the base from within an area on the base covered by the cover to outside of the covered area at the nonslope sides. The base may also include a water deflecting ridge on its underside positioned between a downslope edge and the aperture to deflect water away.

Abstract: A mosquito screen attachment denies access to mosquitoes from entering a vent pipe connected to a subterranean septic or other fluid filled tank. It includes a pipe joint section with mosquito screen pre-attached to the one or more vertical open faces of the horizontal portion. The lower opening on the vertical downpipe is simply attached atop the open vent pipe. Preferably the pipe joint is made of PVC which is also the typical material of the vent pipe. A rigid PVC mosquito screening is used, which is bonded or sealed to the edges of the one or more exposed holes of the pipe joint section. A robust material as opposed to a softer fabric screen is preferable to keep out bats or the beaks of birds attracted to hovering mosquitoes near the openings. The vertical orientation of the two vent holes helps keep debris from accumulating to clog the screened openings.

Abstract: The invention relates to a cover for at least one air-conditioning device arranged on a cladding element, in particular of a switchgear cabinet. The cover has a cover housing having a front wall and side parts connected thereto. The side parts keep the front wall at a distance from the cladding element. At least one holder for the cover housing is fitted to the cladding element. According to the invention, the holder comprises vertical hook elements into which the cover housing can be suspended by hook receptacles in the direction of gravity.

Abstract: An airflow guide cover includes a main body and a panel. The main body includes a top wall, two sidewalls extending down from opposite sides of the top wall, and an airflow guiding channel bounded by the top wall and the sidewalls. The airflow guiding channel includes two opposite openings. The panel is rotatably connected to a top of the main body above one of the openings. The panel is capable of being rotated between a first position where the panel is supported on the top wall, and a second position where the panel partly covers the opening, to adjust airflow through the airflow guide cover.

Abstract: A buttressed hinge assembly or a flexible hinge assembly adjusts to fit a vent on a wall or a roof in order to hold a fan thereon, which fan is especially suitable for a restaurant roof or wall. The hinge assembly attaches to a roof or wall vent to hold the fan in a proper position, yet permits the fan to be easily moved for cleaning of vent and the fan.

Abstract: An exhaust vent apparatus for concealing an exhaust passage in a cooking appliance such as a microwave oven. The apparatus including at least one vent cover member engaged to cover the exhaust passage in flush alignment with a front surface of the oven in a closed position. A guide member is engaged to the vent cover member and aligned with the exhaust passage to provide substantially linear motion of the vent cover member when activated. The guide member may also provide limited arcuate motion. At least one displacement member coupled to the guide member for displacing the vent cover member to an open position in a generally parallel orientation relative to the surface, and the vent cover member being retracted to a closed position.

Abstract: A roof vent for ventilation of a roof, the roof vent adapted to be placed on the pitch of the roof, not the ridgeline. The roof vent has a flat or tabular floor and a base attached to the floor. The floor includes a throat member having vertical walls and the base has sloped back lower walls, and upper walls that are non-horizontal and slope back from the lower walls, and finally a horizontal top. The effect of the nonnormal lower walls and the sloped back upper walls, in conjunction with a typically rectangular flat (parallel to the floor) top provides an airfoil shape to the roof vent that assists in the flow of an over the roof vent.

Abstract: Devices and methods for protecting pipe vents from clogging due to foreign matter or creatures are disclosed herein. In one aspect, the invention provides a fitting for use with a pipe vent that includes a cylindrical ring-shaped member having an inner lumen extending therethrough between first and second open ends, an outer sidewall defining an outer diameter, and an inner sidewall defining an inner diameter. The invention further includes a mesh screen fixedly mated to the inner sidewall of the ring-shaped member such that the mesh screen extends across the entire inner lumen to prevent large particle debris from passing through the inner lumen. The ring-shaped member can also include a groove formed in an outer surface thereof to permit liquid drainage.

Abstract: A method of installing a replacement vent cap involves removing existing louvers from an existing vent cap and fitting a first gasket around a periphery of the existing vent cap. A second gasket is fitted to a collar of a replacement vent cap and the replacement vent cap is placed over the existing vent cap so that a back face of the second gasket lies against a front face of the first gasket. The replacement vent cap is then secured over the existing vent cap. A vent cap kit that may be used with the method has a first gasket and a second gasket. The first gasket has a central opening bounded, by a plurality of removable nested annular bands. The second gasket has a central opening sized to receive the collar of a replacement vent cap and can have an outer periphery co-extensive with an outer periphery of said first gasket. The kit can also include a replacement vent cap with a plurality of through holes for receiving fasteners and a central opening bounded by a collar.

Abstract: An airflow guide cover includes a main body, a first ventilation panel, and a second ventilation panel. The main body includes an airflow guiding channel and two opposite sidewalls. The airflow guiding channel includes an air outlet. The first and second ventilation panels are respectively rotatably connected to the sidewalls adjacent to the air outlet. A number of first vents is defined in the first ventilation panel, and a number of second vents is defined in the second ventilation panel. The areas of the first vents and the second vents are different. The first ventilation panel and the second ventilation panel are selectively rotated to cover the air outlet, to adjust airflow exhausting out of the airflow guide cover.

Abstract: A ventilation member (1A) includes: a gas permeable membrane (2); a support body (3) for supporting the gas permeable membrane (2); and a sealing element (4). The support body (3) has: a main portion (31) having a front surface (31a) on which the gas permeable membrane (2) is attached and a back surface (31b) for pressing the sealing element (4) against a housing (6); and a plurality of leg portions (32) to be inserted into an opening (61) and each having a hook (33) at its end. The main portion (31) has, at positions corresponding to the hooks (33) in the direction in which the leg portions (32) are inserted, through-holes (37) through which the hooks (33) are exposed as seen from the side of the front surface (31a) of the main portion (31).

Abstract: A roof assembly for a building which includes a roof, a roof space in heat exchange relationship with at least a section of the roof, and at least one opening for airflow from the roof space.

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.