A drainage device for a construction, e.g., a roof of a building or a terrace, for discharging rainwater, is provided. The drainage device includes a drainage head supported on the construction around a flow channel and defining a recovery space communicating with the outside and with the flow channel; and a mounting element having a support or attachment element capable of being engaged inside the discharge channel and abutting against the peripheral wall of the discharge channel. The device further includes a biasing element which connects the drainage head and the support or attachment element and is capable of acting on the support or attachment element so as to keep the drainage head supported on the outer surface of the construction.

An intelligent roof drain system includes a roof drain surrounded by a drain plate. A water seepage detection module is disposed proximate the drain plate. The water seepage detection module includes water seepage detection sensors and circuitry and an antenna system to inductively receive power and communicate water seepage data. A roofing membrane is disposed over the water seepage detection module. A monitoring module that includes control circuitry, power supply circuitry, water level detection circuitry, communications interface circuitry, and an antenna system to inductively supply power to and communicate with the water seepage detection module is disposed proximate the water seepage detection module such that the antenna systems align. The intelligent roof drain system can detect water seepage under the roofing membrane and standing water proximate the roof drain and communicate such events to a gateway and/or building management system.

A rainwater distribution system for storing and distributing rainwater includes a first container configured to store rainwater and having a bottom wall and a side wall; a planting container being elevated off of the bottom wall and within the first container, and having a planting container bottom wall and a side wall; a planting container support configured to elevate the planting container off of the bottom wall and within the first container; a cascade aperture having a cascade filter, the cascade aperture positioned on the side wall of the planting container, and allows the rainwater that enters the planting container to exit the planting container into the first container; and an outlet aperture positioned on the side wall of the first container and configured to allow the rainwater to exit the first container at a controlled rate.

An assembly for covering a gutter is disclosed which comprises a mounting member for attachment to a fascia or rafter or the like (10; 100) and a cover member (50) for covering and enclosing a gutter. The mounting member provides upper (22; 120) and lower (34;117) engagement means for engagement with corresponding engagement means (58, 62) defined in ends of the cover member. The engagement means of the mounting member include at least one gap or a space defined between two spaced walls for receiving a generally v-shaped end of the cover and at least one of the walls defines a flange/stop for engaging with the end of the cover for retaining the end of the cover between the walls. The cover will typically be formed from a material such as rolled steel, which may be coated painted or otherwise treated so as to be rust-resistant. The engagement means for the cover will typically be a generally v-shaped bend in one end of the over which engages in the slot by compression of the sides of the v together then expansion to engage in the gap/space. The bracket (10) may be generally planar and attach to a fascia board of a roof defining apertures for receiving fasteners in its front face for attachment to the fascia board. Alternatively the bracket (110) may define an attachment plate oriented at an angle of about 90 to the front face of the bracket for attachment directly to rafter, thus obviating the need for a fascia board.

A vortex breaker and a drainage assembly with a plurality of fins extending radially outward from a common central axis to respective terminal edges. Each fin has an attachment member for cooperation with bars of a domed strainer installed over a drain inlet. Engagement of the attachment members and domed strainer rigidly fixes the vortex breaker relative to the domed strainer.

The present invention is to provide a system and a method for effectively preventing that gases/heat from an outlet are ascending from a gully and form ice, in addition to effectively drain liquids through a gully. The present invention is obtained by arranging a float so that said float and a portion of the gully define a closable opening for through flow, further arranged such that the float is preventing gases/heat from the outlet to ascend up from the gully and form ice and/or so that the float prevents that gas is drawn into the gully.

The invention refers to a drainage system (100), in particular a roof drainage system, comprising an outlet member (10) and a flow restrictor (20), whereby the flow restrictor (20) is situated above the outlet member (10). The flow restrictor (20) comprises a contact portion (22) and the outlet member (10) comprises a flange portion (12), whereby a first sealing member (30) is arranged on and/or along the flange portion (12) of the outlet member (10) and a second sealing member (40) is arranged at the contact portion (22) of the flow restrictor (20).

A sealing assembly for fluidly sealing a roof drain within a conductor pipe has a sealing element and an expansion ring. The sealing element defines an inner wall with a portion that transitions inward and may be disposed on a portion of the roof drain. The expansion ring is disposed within the inner wall. Reciprocation of the of the expansion ring along the inward transitioning portion of the inner wall causes the sealing element to expand outwardly to a sealed position with the sealing element outer wall abutting the conductor pipe inner wall in a fluid tight seal. Opposite reciprocation of the ring allows the sealing element to contract and release from the conductor pipe.

A scupper door system includes a frame defining a passageway. A door is mounted within the frame at a pivot and is therein rotatable about the pivot within the passageway between a closed position, blocking the passageway, and an open position wherein the passageway is open to permit passage of water therethrough. A latch mechanism is configured to retain the door in the closed position and is triggerable in response to a preset water condition at one side of the passage to release the door from the closed position and allow the door to rotate to the open position.

In an exemplary embodiment, a system for releasing stormwater on a rooftop of a building structure includes at least one drain water retention device including a float control device to measure volumetric stormwater retained in the rooftop and a valve to operatively open a drain when the measured volumetric stormwater is exceeded, at least one leak detection device configured to detect a water leak, located under an underlying surface of the rooftop, the at least one leak detection device detects the leak in response to change in relative humidity levels or dew point under the underlying surface of the rooftop, and a controller, executing control instructions, in communication with the at least one drain water retention device for selectively controlling the valve in accordance with the control instructions, the controller includes a storage associated with the controller for storing the control instructions. The control instructions are performed according to the steps of measuring the volumetric stormwater retained in the rooftop, determining a duration of time of stormwater retained in the rooftop, determining a location of the building structure to provide prior estimated precipitation and atmospheric conditions, defining a predefined allowable tolerance, and comparing the measured volumetric stormwater with the predefined allowable tolerance and, if the measured volumetric stormwater exceeds the predefined allowable tolerance, opening the drain to remove the stormwater.