Green roof system

Abstract

The present invention relates to a vegetated assembly (0) for a roof (11) comprising: - a basin (1) adapted to collect and store water; - a structure (2) disposed in the impermeable basin (1), comprising at least one basket (21) for receiving plants (22); - a system (4, 41, 6, 61, 7, 8, 81, 9, 10) for managing the water stored in the basin (1), - an irrigation system (5) for each basket (21) in fluidic communication with an irrigation channel (4), the irrigation channel (4) being in communication with a recovery channel (6) for the water stored in the basin (1); The system (4, 41, 6, 61, 7, 8, 81, 9, 10) for managing the water stored in the basin (1) is configured to: a) draw water from the basin (1) and convey it to the irrigation system (5); b) discharge a quantity of stored water. Figure for the abstract: Fig. 1

Description

Title of the invention: Green roof assembly Technical field

[0001] The present invention relates generally to the field of green roofs. STATE OF THE ART

[0002] A green roof is a roof designed to accommodate a growing substrate and a plant layer. This alternative to traditional building coverings such as tiles, wood or sheet metal provides additional thermal insulation as well as other benefits, including better sound insulation, rainwater capture capacity limiting urban runoff, an increase in local biodiversity and the absorption of carbon dioxide and certain fine particles.

[0003] There are three main types of green roofs: extensive, intensive and semi-intensive roofs, which are distinguished by the type of vegetation they can accommodate and therefore by the depth of their substrate.

[0004] Thus, extensive roofs are covered with a very shallow layer of substrate (generally less than 10 cm), which most often accommodates reduced vegetation composed of succulent plants, resistant to water stress. The low mass of the assembly allows the installation of such a roof on many old buildings, but brings little advantage because of its low thickness.

[0005] Intensive roofs, on the other hand, have a deeper substrate (generally more than 30 cm) and can support a great deal of biodiversity, including shrubs and trees. However, the high mass of such an assembly, multiplied when the substrate is saturated with rainwater, makes installation difficult on many pre-existing buildings.

[0006] Finally, semi-intensive roofs are located between extensive and intensive roofs in terms of substrate depth (generally 15 to 30 cm) and allow the cultivation of varied and larger plants (herbaceous, etc.) than extensive roofs. Their substrate is sufficiently thick to constitute a rainwater buffer stock and effective thermal insulation, but variable depending on the humidity level of the substrate, but this implies a significant mass.

[0007] There is therefore a need to lighten green roofs, in order to optimize their advantages while facilitating their installation on existing constructions. Statement of the invention

[0008] An aim of the present application is to remedy the aforementioned drawbacks, by offering a green roof system allowing precise management of the quantity of water stored.

[0009] For this purpose, according to a first aspect of the invention, a green roof assembly is proposed, comprising:

[0010] - an impermeable basin suitable for collecting and storing water, the impermeable basin permeable being intended to be placed on the roof;

[0011] - a structure arranged in the waterproof basin, comprising at least one basket, each basket being adapted to receive plants;

[0012] - a system for managing the water stored in the impermeable basin,

[0013] - an irrigation system for each basket in fluid communication with a channel irrigation, the irrigation channel being in communication with a channel for recovering the water stored in the impermeable basin;

[0014] the system for managing the water stored in the impermeable basin being configured to:

[0015] a) recovering water from the impermeable basin in a determined quantity and bringing it to the irrigation system

[0016] b) evacuating a quantity of water stored in the impermeable basin.

[0017] The vegetated assembly according to the invention is advantageously completed by the following characteristics, taken alone or in any of their technically possible combinations:

[0018] - the system for managing the water stored in the impermeable basin comprises:

[0019] - a recovery channel configured to conduct water from the impermeable basin to a discharge valve and / or to the irrigation channel, the discharge valve being configured to discharge water from the impermeable basin,

[0020] - a pump configured to bring water from the recovery channel to the channel irrigation,

[0021] - a sensor, arranged in the waterproof basin and configured to measure a volume of water stored in the impermeable basin,

[0022] - a control unit configured to actuate, depending on the volume measured by the sensor, the discharge valve and thus implement step b) depending on the volume of water stored in the impermeable basin.

[0023] - the at least one basket and the irrigation system are configured for cultivation of plants in sub-irrigation by mat, the irrigation system comprising a geotextile mat configured to be in contact with the at least one basket, the geotextile mat and the at least one basket being configured to conduct water by capillarity to the plants when the irrigation system is supplied with water;

[0024] - the at least one basket and the irrigation system are configured for cultivation of plants in micro-irrigation, the irrigation system being configured to irrigate the drip plants;

[0025] - the system for managing the water stored in the impermeable basin comprises in in addition to a set of environmental sensors and wherein the control unit is further configured to actuate, depending on the signal received from the set of environmental sensors, the discharge valve and / or the pump; such that the control unit controls the system for managing the water stored in the impermeable basin to implement steps a) and / or b) depending on environmental parameters;

[0026] - the set of environmental sensors is configured to measure one or several of the following parameters among a temperature, an atmospheric pressure, a wind speed, a humidity, a dew point, a rainfall;

[0027] - the control unit further comprises a communication module, the module of communication being configured to receive control signals from a source external to the vegetated assembly and to transmit them to the control unit, so that the control unit controls the system for managing the water stored in the impermeable basin to implement steps a) and / or b) according to the control signals received from a source external to the vegetated assembly;

[0028] - the system for managing the water stored in the impermeable basin comprises in in addition to a supply valve, configured to be connected to a domestic network, the supply valve being configured to discharge recycled water from a domestic water circuit into the impermeable basin upon command from the control unit, the recycled water being suitable for use in irrigation.

[0029] The invention also relates to a method for managing a green roof assembly in accordance with the invention, comprising the following steps:

[0030] - The sensor emits a signal representing a quantity of stored water in the waterproof basin,

[0031] - E4 reception of the signal representative of a quantity of water stored in the basin im permeable by the control unit,

[0032] - E5 as a function of the signal representative of a quantity of water stored in the basin waterproof and predefined irrigation frequency and volume, issuance by the control unit of a pump activation command,

[0033] - E6 as a function of the signal representative of a quantity of water stored in the basin waterproof, emission by the control unit of a command to open the discharge valve.

[0034] The method can advantageously be supplemented by one or more of the following steps: - between steps E1 and E4, a step E2 of emission by a set of environmental sensors of signals representative of parameters approximately nementaux, step E4 further comprising the reception of signals representative of environmental parameters and steps E5 and E6 being implemented as a function of these signals representative of environmental parameters; - between steps E1 and E4, a step E3 of transmission by a source external to the vegetated assembly of control signals, step E4 further comprising the reception of the control signals and steps E5 and E6 being implemented as a function of these control signals; - a step E7 of emission by the control unit of a command to open the supply valve, as a function of at least one element from the following list: a signal representative of a quantity of water stored in the impermeable basin, signals representative of environmental parameters, a control signal. DESCRIPTION OF FIGURES

[0035] Other characteristics, aims and advantages of the invention will emerge from the following description, which is purely illustrative and non-limiting, and which must be read in conjunction with the appended drawings in which:

[0036] [Fig.l] is a schematic view of a vegetated assembly according to a first embodiment of the invention;

[0037] [Fig.2] is a schematic view of a vegetated assembly according to a mode alternative embodiment of the invention;

[0038] [Fig.3] is a schematic view of a vegetated assembly according to a second embodiment of the invention;

[0039] [Fig.4] is a schematic view of a vegetated assembly according to a third embodiment of the invention;

[0040] [Fig.5] is a schematic view of a vegetated assembly according to a fourth embodiment of the invention;

[0041] [Fig.6] is a diagram showing the steps of a method for managing a quantity of stored water implemented in one embodiment of the invention.

[0042] Throughout the figures, similar elements bear identical references. DETAILED DESCRIPTION OF THE INVENTION

[0043] Throughout the following description, as illustrated [Fig.l], the vegetated assembly 0, preferably placed on a roof 11, comprises an impermeable basin 1, consisting for example of an open tank lined with a waterproof tarpaulin, so as to collect rainwater and store it while constituting thermal insulation for the roof 11 on which the impermeable basin 1 is placed. Alternatively, a roof 11 of suitable shape can also constitute an impermeable basin 1. The waterproof basin 1 constitutes a real waterproofing layer on the covered perimeter and a renewal of the waterproofing of the roof 11 in retrofit. The waterproof basin 1 includes an overflow hole and a manhole to prevent overflow of the stored water. The overflow hole, or overflow, will be positioned at a height of the waterproof basin 1 defined following a study of the building to allow the water to be retained in the waterproof basin 1 according to the maximum load admissible by the roof 11. The thermal insulation can be further increased according to the principle of reverse insulation, by covering the roof 11 with a layer of insulation 12 on which the waterproof basin 1 is placed.The insulating layer 12, for example made of polyurethane, is then held in place by the mass of the vegetated assembly 0 placed on it and makes it possible to limit the thermal exchanges of the building to which the roof 11 belongs with the external environment over the entire surface covered by the vegetated assembly 0.

[0044] The vegetated assembly 0 accommodates plants 22 via a structure 2, which comprises baskets 21 adapted to receive the plants 22. The structure 2 is for example placed at the bottom of the impermeable basin 1 or fixed to the edges of the impermeable basin 1 so that the plants 22 that it carries ideally cover a majority of the surface of the impermeable basin 1. The structure 2 has a sufficient height to keep the baskets 21 out of the water when the impermeable basin 1 is filled to its maximum capacity. The structure 2 is preferably as light as possible and can therefore be for example a profile frame made of plastic material, preferably recycled plastic. In compliance with construction standards, a draining perimeter not comprising plants 22 is maintained at the periphery of the impermeable basin 1.This draining perimeter is for example formed by strips 40 centimeters wide, the width being measured from the edges of the impermeable basin 1, the strips not comprising plants 22. To this end, the structure 2 is configured so that the baskets 21 are sufficiently distant from the strips of the draining perimeter. In the same way, the structure 2 can comprise surfaces configured to be devoid of plants 22, by arranging the baskets 21 so as to allow the circulation of a user in the vegetated assembly 0.

[0045] The plants 22 thus form an insulating layer covering the entire surface of the impermeable basin 1, an insulating layer which limits the rise in temperature of the surface of the roof 11 and cools the ambient air via the evapotranspiration of the plants 22. This effect is further increased by the use of a permeable membrane 3, fixed to the structures 21 and which has orifices allowing the plants 22 to pass through it while covering the entire surface of the impermeable basin 1. The permeable membrane 3 allows rainwater to pass through but protects the stored water and the roots of plants 22 from wind and solar radiation.

[0046] The quantity of water stored in the impermeable basin 1 is controlled by a system 4, 41, 6, 61, 7, 8, 81, 9, 10 whose main functions are, on the one hand, to recover water from the impermeable basin 1 in a determined quantity and bring it to an irrigation system 5 and, on the other hand, to evacuate in a controlled manner a quantity of water stored in the impermeable basin 1 to a specific network or to the pre-existing rainwater evacuation system of the roof 11.

[0047] To fulfill these functions, the system 4, 41, 6, 61, 7, 8, 81, 9, 10 comprises a recovery channel 6, located at the bottom of the basin and which makes it possible to take water therefrom for a discharge valve 61 and / or an irrigation channel 4. The irrigation channel 4 conducts the water taken from the recovery channel 6, for example by means of a pump 41, to an irrigation system 5 of each basket 21, in order to irrigate the plants 22.

[0048] The pump 41 and the discharge valve 61 are controlled by a control unit 8 configured to actuate one and / or the other in order to manage the quantity of water present in the impermeable basin 1. Depending on the needs of plants 22, the control unit 8 controls the operation of the pump 41 to conduct the water by suction from the impermeable basin 1 to the irrigation system 5 via the recovery channel 6 and the irrigation channel 4, for example according to a schedule of a predefined watering frequency and volume and recorded in a memory of the control unit 8.

[0049] In addition, a sensor 7 may be placed inside the impermeable basin 1, the sensor 7 measures the water level relative to the bottom of the impermeable basin 1, the volume of water stored or more generally the quantity of water stored in the impermeable basin 1 and emits a signal representative of this measurement to the control unit 8. The control unit 8 can then control the operating time and power of the pump 41 and the opening time of the discharge valve 61 as a function of the quantity of water present in the impermeable basin 1. For example, the control unit 8 controls the opening of the discharge valve 61, which is preferably a solenoid valve, in order to empty the impermeable basin 1 if the volume of water stored is too large, typically if it is greater than a predefined threshold and irrigation of the plants 22 is not desirable.

[0050] On the other hand, the baskets 21 and the irrigation system 5 can be adapted to the cultivation of plants in aeroponics, the baskets 21 exposing to the air the largest possible surface area of ​​the plants 22 while the irrigation system 5 is configured to irrigate each basket 21 and the plants 22 by misting water from the irrigation channel 4. Alternatively, by using impermeable baskets 21, the cultivation of the plants 22 follows the principles of hydroponics by using an irrigation system 5 circulating the water from the irrigation channel 4 in the baskets 21. In a third al alternatively, The plants 22 are irrigated by micro-irrigation, using an irrigation system 5 conveying water from the irrigation channel 4 into a light substrate using “drip” nozzles.

[0051] In a fourth alternative, illustrated [Fig.2], the irrigation system 5 is adapted to a sub-irrigation culture, more particularly to sub-irrigation by mat, and therefore comprises a geotextile mat 51, fixed or placed at the base of the baskets 21 and covering the entire surface of the impermeable basin 1. The irrigation system 5 conveys water on the upper face of the geotextile mat 51, for example by means of a flexible pipe, or to each basket 21 by means of several flexible or non-flexible pipes. The geotextile mat 51, for example an absorbent membrane whose thickness is between 1 and 10 millimeters, then allows irrigation by making the water rise to the roots of the plants 22 by capillarity, by means of the baskets 21, by direct contact with the roots of the plants 22 or by any other suitable means.

[0052] Such a geotextile mat 51 also provides a filtration function by retaining objects and particles, for example debris from the baskets 21 and plants 22, or more generally by filtering any object or particle coming from outside the impermeable basin 1, having crossed the permeable membrane 3 where appropriate. Thus, the water stored in the impermeable basin 1 sees its turbidity reduced and its general cleanliness improved.

[0053] These growing methods offer several advantages by directly irrigating the root system of the plants 22 with controlled volumes of water. This allows for faster and healthier growth of the plants 22, accompanied by a significant reduction in diseases and pests affecting them.

[0054] In a second embodiment, illustrated [Fig. 3], the control unit 8 receives signals representative of environmental parameters from a set of environmental sensors 9. By environmental, it is meant that the set of environmental sensors 9 is placed so that the measurements made by the different sensors of the set of environmental sensors 9 are made outside the impermeable basin 1, in relative proximity to it, without exceeding a distance of fifty meters. The sensors of the set of environmental sensors 9 can measure a temperature, an atmospheric pressure, a wind speed, a hygrometry, a dew point, a rainfall, a quantity of carbon dioxide in the air, or any other relevant parameter for evaluating the quantity of water necessary for good irrigation of the plants 22 or a quantity of water to be stored in the impermeable basin 1.Optionally, the control unit 8 is configured to predictively activate the pump 41 and / or the discharge valve 61 based on meteorological information transmitted by the set of sensors approximately . nementaux 9, for example by opening the discharge valve 61 to reduce the amount of water stored in the impermeable basin 1 in anticipation of heavy rain. Such behavior allows the vegetated assembly 0 to act as a buffer reservoir to control the flow rates of rainwater drainage from the roof 11 to the ground, which is particularly advantageous in an urban environment to avoid saturation of the drainage networks and the possible flooding that results from this.

[0055] In a third embodiment, illustrated [Fig.4], the control unit 8 is provided with a communication module 81, i.e. any means suitable for the transmission and reception, preferably wirelessly, of intelligible signals transmitted or received by an external source. An external source is understood to mean a device comprising communication means similar to those of the communication module 81 and compatible with them, the external source being arranged at a significant distance from the vegetated assembly 0, i.e. more than 50 meters. The external source is for example a control station in charge of one or more vegetated assemblies 0, communicating information and / or instructions to the control unit 8 via the communication module 81.Alternatively to the second embodiment, such a remote control station comprises a set of environmental sensors similar to the set of environmental sensors 9, so as to form a weather station and to communicate meteorological information to the control unit 8, according to which it controls the pump 41 and / or the discharge valve 61. The external source can also directly communicate frequencies, irrigation volumes or any other information relevant to the system 4, 41, 6, 61, 7, 8, 81, 9, 10 for managing the water stored in the impermeable basin 1. This makes it possible, for example, to control several systems 4, 41, 6, 61, 7, 8, 81, 9, 10 for managing the water stored in impermeable basins 1 of vegetated assemblies 0 from a single external source and to reduce the number of sensors deployed.

[0056] The communication module 81 can also communicate to the external source information relating to the quantity of water stored in the impermeable basin 1 from a sensor 7, as well as a history of the activations of the pump 41 and the evacuation valve 61, in order for example to signal a possible leak in an impermeable basin 1 by comparing the information from several vegetated assemblies 0 and by signaling a quantity of stored water that is too different from the vegetated assemblies 0 compared without the difference being attributable to irrigation or evacuation.

[0057] In a fourth embodiment, illustrated [Fig.5], the system 4, 41, 6, 61, 7, 8, 81, 9, 10 for managing the water stored in the impermeable basin 1 further comprises a supply valve 10 configured to discharge, on command from the control unit 8, into the impermeable basin 1 water recycled from a network do mestique 13 of the building under the roof 11, for example so-called "grey" water (from showers, bathtubs, sinks, washing machines, and other similar domestic devices) having been filtered and treated in order to allow their use for irrigating plants 22, particularly in dry periods, when rainfall is too low to provide on its own a quantity of water stored in the impermeable basin 1 sufficient for irrigation.

[0058] Of course, the embodiments of the invention described by the present description can be implemented and carried out not only with the cultivation methods stated, namely sub-irrigation, micro-irrigation, hydroponics and aeroponics but also with any other cultivation method adapted to the cultivation of plants 22 in the vegetated assembly 0. In addition, the characteristics of the embodiments can be combined with each other.

[0059] The system 4, 41, 6, 61, 7, 8, 81, 9, 10 for managing the water stored in the impermeable basin 1 implements a method for managing the vegetated assembly 0 in which the sensor 7 and / or the set of environmental sensors 9 respectively emit during steps E1 and E2 a signal representative of a quantity of water stored in the impermeable basin 1 and signals representative of environmental parameters to the control unit 8, which receives these signals during a step E4. Optionally, the control unit 8 receives, via a communication module 81, control signals emitted by a source external to the vegetated assembly 0 during a step E3.

[0060] Depending on the signals received, but also on frequencies and volumes predefined and stored in the internal memory of the control unit 8, said control unit 8 actuates the pump 41 and / or the evacuation valve 61 in order to irrigate the plants 22 and / or to empty the impermeable basin 1.

[0061] The proposed vegetated assembly 0 has numerous advantages, some of which have already been mentioned. Compared to the devices and methods of the prior art, the use of baskets 21 and an irrigation system 5 using sub-irrigation by mat or micro-irrigation by drip allows the quantities of substrate required to be considerably or even completely reduced. This results in a clear reduction in the mass of the vegetated assembly 0, which has an advantage from the moment of installation on a roof 11 but also allows installation on more fragile roofs 11. Without a substrate to absorb the irrigation or rainwater not absorbed by the plants 22, they are directly collected by the impermeable basin 1, thanks to the arrangement of the baskets 21 placed by the structure 2 overhanging it.The management system 4, 41, 6, 61, 7, 8, 81, 9,10 therefore allows dynamic management of almost all the water in the vegetated complex 0, which consequently makes it possible to vary the quantity of water stored but also the thermal insulation capacity of the complex. vegetated 0 according to needs. In particular, the use of a set of environmental sensors 9 makes it possible, advantageously in a predictive manner, to adapt to weather conditions.

Claims

1.

2.

3. Claims Green assembly (0) for roof (11) including: - a waterproof basin (1) suitable for collecting and storing water, the waterproof basin (1) being intended to be placed on the roof (11); - a structure (2) arranged in the waterproof basin (1), comprising at least one basket (21), each basket (21) being adapted to receive plants (22); - a system (4, 41, 6, 61, 7, 8, 81, 9, 10) for managing the water stored in the impermeable basin (1), - an irrigation system (5) for each basket (21) in fluid communication with an irrigation channel (4), the irrigation channel (4) being in communication with a recovery channel (6) for the water stored in the impermeable basin (1); the system (4, 41, 6, 61, 7, 8, 81, 9, 10) for managing the water stored in the impermeable basin (1) being configured to: a) recover water from the impermeable basin (1) in a determined quantity and bring it to the irrigation system (5) b) evacuating a quantity of water stored in the impermeable basin (1). Vegetated assembly (0) for roof (11) according to claim 1, in which the system (4, 41, 6, 61, 7, 8, 81, 9, 10) for managing the water stored in the impermeable basin (1) comprises: - a recovery channel (6) configured to conduct water from the impermeable basin (1) to a discharge valve (61) and / or to the irrigation channel (4), the discharge valve (61) being configured to discharge water from the impermeable basin (1); - a pump (41) configured to bring water from the recovery channel (6) to the irrigation channel (4); - a sensor (7), arranged in the impermeable basin (1) and configured to measure a volume of water stored in the impermeable basin (1); - a control unit (8) configured to actuate, as a function of the volume measured by the sensor (7), the discharge valve (61) and thus implement step b) as a function of the volume of water stored in the impermeable basin (1). Vegetated assembly (0) for roof (11) according to one of claims 1 to 2, in which the at least one basket (21) and the irrigation system (5) are configured for growing the plants (22) in sub-irrigation by mat, the irrigation system (5) comprising a geotextile mat (51) configured to be in contact with the at least one basket (21), the geotextile mat (51) and the at least one basket (21) being configured to conduct water by capillarity to the plants (22) when the irrigation system (5) is supplied with water.

4. Vegetated assembly (0) for roof (11) according to one of claims 1 to 2, in which the at least one basket (21) and the irrigation system (5) are configured for growing the plants (22) in micro-irrigation, the irrigation system (5) being configured to irrigate the plants (22) in drip irrigation.

5. Vegetated assembly (0) for roof (11) according to one of claims 2 to 4, wherein the system (4, 41, 6, 61, 7, 8, 81, 9, 10) for managing the water stored in the impermeable basin (1) further comprises a set of environmental sensors (9) and wherein the control unit (8) is further configured to actuate, depending on the signal received from the set of environmental sensors (9), the discharge valve (61) and / or the pump (41); so that the control unit (8) controls the system (4, 41, 6, 61, 7, 8, 81, 9, 10) for managing the water stored in the impermeable basin (1) to implement steps a) and / or b) depending on environmental parameters.

6. Vegetated assembly (0) for roof (11) according to claim 5, wherein the set of environmental sensors (9) is configured to measure one or more of the following parameters among a temperature, an atmospheric pressure, a wind speed, a hygrometry, a dew point, a rainfall.

7. Vegetated assembly (0) for roof (11) according to one of claims 2 to 6, wherein the control unit (8) further comprises a communication module (81), the communication module (81) being configured to receive control signals from a source external to the vegetated assembly (0) and to transmit them to the control unit (8), so that the control unit (8) controls the system (4, 41, 6, 61, 7, 8, 81, 9, 10) for managing the water stored in the impermeable basin (1) to implement steps a) and / or b) as a function of the control signals received from a source external to the vegetated assembly (0).

8. Vegetated assembly (0) for roof (11) according to one of claims 1 to 7, in which the system (4, 41, 6, 61, 7, 8, 81, 9, 10) for managing the water stored in the impermeable basin (1) further comprises a supply valve (10), configured to be connected to a network do- mestic (13), the supply valve (10) being configured to discharge into the impermeable basin (1) recycled water from a domestic water circuit on command from the control unit (8), the recycled water being suitable for use in irrigation.

9. Method for managing a vegetated assembly (0) for a roof (11) according to one of claims 2 to 8, the method being implemented by the system (4, 41, 6, 61, 7, 8, 81, 9, 10) for managing the water stored in the impermeable basin (1), the method comprising the following steps: - E1 emission by the sensor (7) of a signal representative of a quantity of water stored in the impermeable basin (1); - E4 reception of the signal representative of a quantity of water stored in the impermeable basin (1) by the control unit (8); - E5 depending on the signal representative of a quantity of water stored in the impermeable basin (1) and predefined irrigation frequency and volume, emission by the control unit (8) of a command to activate the pump (41); - E6 depending on the signal representative of a quantity of water stored in the impermeable basin (1), emission by the control unit (8) of a command to open the evacuation valve (61).

10. Method for managing a vegetated assembly (0) for a roof (11) according to claim 9 comprising between steps E1 and E4 a step E2 of emission by a set of environmental sensors (9) of signals representative of environmental parameters, step E4 further comprising the reception of the signals representative of environmental parameters and steps E5 and E6 being implemented as a function of these signals representative of environmental parameters.

11. Method for managing a vegetated assembly (0) for a roof (11) according to one of claims 9 or 10, comprising between steps E1 and E4 a step E3 of transmission by a source external to the vegetated assembly (0) of control signals, step E4 further comprising the reception of the control signals and steps E5 and E6 being implemented as a function of these control signals.

12. Method for managing a green assembly (0) for a roof (11) according to one of claims 9 to 11, comprising a step E7 of transmission by the control unit (8) of a command to open the supply valve (10), as a function of at least one element from the list following: a signal representative of a quantity of water stored in the impermeable basin (1), signals representative of environmental parameters, a control signal.

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