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 roofing assembly disposed on an underlying support comprising an underlayment assembly disposed in a securing relation to the underlying support. A conduit assembly is disposed on the underlayment assembly and structured to define a path of fluid flow. The path of fluid flow extends along at least a majority portion of said underlayment assembly. The conduit assembly is disposed in a single, continuous, looped relation to the underlayment assembly. A plurality of pan tiles are partially disposed in a confronting relation to the underlayment assembly. At least some of the plurality of pan tiles are partially disposed in an overlying relation to at least a portion of the conduit assembly. The plurality of pan tiles are disposed to have a predetermined spacing in between each other, which is disposed to receive at least a portion of the conduit assembly.

A plant cultivation container is provided which does not need a feed-water tube made of a porous material or the like but the plant cultivation bed material can be made permeated in a relatively short time period. For this purpose, a water reservoir portion for pooling plant cultivation water is provided, the water reservoir portion having a bed material accommodation part for placing a water-absorbing plant cultivation bed material. In the plant cultivation container, the water reservoir portion is provided with a surrounding feed-water channel that surrounds an entire circumference of the bed material accommodation part, and a feed-discharge channel for supplying the plant cultivation water from outside to the water reservoir portion and for discharging the plant cultivation water in the water reservoir portion to outside is provided in communication with the surrounding feed-water channel.

The present invention provides an inverted roofing system and method that is more thermally efficient, inexpensive and quicker to install, better able to withstand environmental conditions, and produces the appearance and some functional benefits of a traditional natural green roof ballast top-layer. It does not require a sloped roof gradient, and is capable of a user controlled mass per square foot roof load. The inverted roofing system and method provides a ballast top-layer that is lightweight, and maintains properties that will prevent wind uplift.

A system for harvesting rainwater for use in a skirt building. The skirt building includes a main building and a podium supporting the main building. The system includes: a standpipe; a buffer channel; a filter channel; and a green roof. The green roof includes a vegetation region including a baffled diversion corridor, and a bottom filtering layer including a drainage pipe. The standpipe is arranged on the main building and is connected to the buffer channel where the energy of rainwater flowing out of the standpipe is dissipated. The buffer channel, the filter channel, and the green roof are arranged on the podium, and the buffer channel communicates with the filter channel. The filter channel is connected to the green roof. The filter channel is divided into a plurality of sections respectively filled with different matrix materials.

In an embodiment, a method includes applying a liquid plural component polymer to a sloped roof to form a protective surface that inhibits moisture seepage to the roof sheathing. In some embodiments, the plural component polymer may be a polyurea compound having a hardening time that is less than approximately 10 minutes. In some embodiments, one or more of the components may be aerated prior to application to the roof substrate. In some embodiments, one or more polystyrene panels may be affixed to the sloped roof prior to application of the liquid plural component polymer. Other embodiments are described and claimed.

A planting baseplate assembly comprises a base, a water storage device, and a diversion element. The base includes a base body; a drain hole penetrating the upper and lower surfaces of the base body, wherein a connection member extends downward from the lower surface of the base body; a plurality of water guiding trenches mutually intersecting on the upper surface of the base body and interconnecting with the drain holes for water drainage; and a plurality of overflow holes disposed in and penetrated the water guiding trenches for water drainage. The water storage device includes a storage body and a connection neck to fix with the connection member. The diversion element is inserted through the drain hole and extended to the water storage device. The planting baseplate assembly is easy to assemble, favorable to environmental protection, and applicable to green roofs and various planting apparatuses.

One embodiment provides a modular green roof tray, house plant growth media and horticulture growth media, and a tree protection mat for weed and moisture control made from recycled disposable diapers. The growth medium and tree protection mat contain superabsorbent materials from diaper that can absorb waters and greatly reduce irrigation so to provide a drought resistant feature. One embodiment also provides a manufacturing process to perform 100% recycling of disposed diapers.

A green roof modular system includes at least four planter modules each including a planter including a bottom wall and a plurality of sidewalls that cooperate with the bottom wall to form an interior space, and a biodegradable insert including a plurality of sidewalls that cooperate with one another to form an interior space, wherein the insert is adapted to retain a plant matter in the interior space of the insert, the plurality of sidewalls of the insert extending above the plurality of sidewalls of the planter, and wherein the plurality of the sidewalls of the insert are adapted to retain a plant matter that extends above the plurality of sidewalls of the planter, such that one of the planter modules abuts each of the remaining three planter modules and substantially no gap exists between the abutting planter modules in plan view.

In an embodiment, a method includes applying a liquid plural component polymer to a sloped roof to form a protective surface that inhibits moisture seepage to the roof sheathing. In some embodiments, the plural component polymer may be a polyurea compound having a hardening time that is less than approximately 10 minutes. In some embodiments, one or more of the components may be aerated prior to application to the roof substrate. In some embodiments, one or more polystyrene panels may be affixed to the sloped roof prior to application of the liquid plural component polymer. Other embodiments are described and claimed.