EP2090712A2 - Vorrichtung zur Regulierung des Regenwasserablaufs von einer Dachfläche - Google Patents

Vorrichtung zur Regulierung des Regenwasserablaufs von einer Dachfläche Download PDF

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Publication number
EP2090712A2
EP2090712A2 EP20090152779 EP09152779A EP2090712A2 EP 2090712 A2 EP2090712 A2 EP 2090712A2 EP 20090152779 EP20090152779 EP 20090152779 EP 09152779 A EP09152779 A EP 09152779A EP 2090712 A2 EP2090712 A2 EP 2090712A2
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EP
European Patent Office
Prior art keywords
rainwater
weighting
regulating
wall
evacuation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP20090152779
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English (en)
French (fr)
Inventor
Hervé Dekoker
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EROA
Original Assignee
EROA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by EROA filed Critical EROA
Publication of EP2090712A2 publication Critical patent/EP2090712A2/de
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
    • E04D13/04—Roof drainage; Drainage fittings in flat roofs, balconies or the like
    • E04D13/0404—Drainage on the roof surface
    • E04D13/0409—Drainage outlets, e.g. gullies
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
    • E04D13/04—Roof drainage; Drainage fittings in flat roofs, balconies or the like
    • E04D13/0404—Drainage on the roof surface
    • E04D13/0409—Drainage outlets, e.g. gullies
    • E04D2013/0413—Strainers for drainage outlets
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
    • E04D13/04—Roof drainage; Drainage fittings in flat roofs, balconies or the like
    • E04D13/0404—Drainage on the roof surface
    • E04D13/0409—Drainage outlets, e.g. gullies
    • E04D2013/0427—Drainage outlets, e.g. gullies with means for controlling the flow in the outlet

Definitions

  • the present invention relates to a device for regulating the evacuation of rainwater from a low slope roof surface.
  • It relates more particularly to such a regulating device comprising evacuation flow control means intended to be arranged upstream of a rainwater discharge pipe.
  • Sloped roofs so-called terrace roofs, such as horizontal or slightly sloped roofs, are generally surrounded by a rim-like wall designed to retain water in the event of rain and thus prevent runoff on the facade. associated or adjacent building.
  • the rainwater is discharged from the roof into the discharge pipe through the water passage holes which are formed in a tubular body of the regulating device.
  • This evacuation via these orifices is performed as the water level has not reached the open upper end of the tubular body intended to serve as an overflow for the evacuation of water.
  • This overflow evacuation thus provides a safety function to prevent accidental overloads and the exceeding of the water level above a permissible threshold.
  • the height of the tubular body is thus less than or equal to the permissible water height on the roof, this being determined in particular by the mechanical strength of the framework or the slab which supports it, as well as by parameters related to the different Laying layers on the roof, such as sealing, draining, filtering or topsoil layers.
  • terraced roofs tend to increase, especially in certain areas of commercial or industrial activity, and the volume of water drained by all these terraced roofs tends to increase considerably. So that, during very important, even exceptional rains, which fall in a very short time, the collection pipes or sanitation pipes can not evacuate a quantity of water that is so important in such a short time.
  • the regulation devices for the evacuation of rainwater in particular by means of calibrated orifices, regulate the flow rate of the water during its evacuation of the roof so as not to overload the Collective collection pipes during exceptional rains. In this way, the water of a storm that will have fallen in a few minutes can be eliminated, at a moderate flow, in several hours without overloading the sewers.
  • the orifices of these regulating devices are generally calibrated according to the local stresses of discharge in the rainwater collection networks and also of the roof concerned, as its surface and / or other parameters related to the different layers laid on said roof .
  • a rainwater draining device comprising a vertical drain pipe whose upper end is coaxially assembled with the bottom of a collector tank whose upper edge rests at the bottom of a cavity formed in the thickness of the roof slab and surrounding a water discharge opening.
  • This device further comprises a cap-strike guard for sealingly fitting inside the collecting tray so that the lower edge of the cap rests on the bottom of the cavity or on the upper edge of the collecting tray .
  • This device comprises a discharge pipe forming a discharge inlet, a collector welded to the upper end of the pipe, and a water guiding device.
  • the guiding device is screwed onto a collar of the collecting tray, by means of nuts cooperating with threaded rods protruding from said collar and passing through holes formed in the guiding device.
  • the device comprises a plate which has a bowl shape open at its center and whose edges are sandwiched between two sealing layers of the roof, and a tubular stump of which one end is welded to the opening of the bowl and the opposite end is fitted on the discharge pipe.
  • This device further comprises an operating member comprising a plurality of orifices formed in its wall for the passage of water and a part of which is screwed into a ring, said ring being itself screwed into another ring mounted in the bowl of the platen so as to be immobilized in rotation relative to this bowl.
  • a last device for evacuation of rainwater of the state of the art is described in the patent application FR 2,747,144 , where the device comprises a vertical discharge pipe surmounted by a tray intended to be flush with the surface of the roof, a plate on said surface and sealing between this surface and the tray, an anti-vortex device disposed in said tray above the inlet end of the discharge pipe and defining with the bottom of the tray radial passages for water to the drain pipe, and a guard surrounded by an anti-glitter system posed on the turntable.
  • the guard-strike has a diameter adapted to be able to engage in the tray, and it comprises an orifice for the passage of a securing rod which also passes through the anti-vortex device. This rod has at one end a head which abuts against the guard-strike and at another end a locking washer which secures the anti-vortex device to the guard-strike, in particular to maintain it during high winds.
  • evacuation devices require the intervention of a sealer, part of the specialized trade in sealing, to have the various joints necessary for the overall sealing of the evacuation device, especially between turntables and the roof.
  • evacuation devices are complicated maintenance because it is necessary to act on the fastening means, such as for example by unscrewing the nuts, or disengaging the fitted parts into one another without damaging the seals. sealing, or by removing the disengaging rod.
  • the present invention aims to solve all or part of these disadvantages, and consists of a device for regulating the evacuation of rainwater from a low slope roof surface, comprising evacuation flow control means for to be arranged upstream of a rainwater discharge pipe, characterized in that it comprises means for weighting said regulating means on said roof surface.
  • the invention allows a simplified installation of the regulating device by means of a ballast of appropriate mass to prevent the device from flying away under the effect of the wind, in particular in the absence of self-supporting slabs which would cover said device , the wind generating a depression at the external surface of the roof likely to lift the regulating device (this depression being in particular a function of the wind speed, the geometry of the roof and the height of the building), and to avoid also that the device does not float under the effect of buoyancy when the water level rises around said device.
  • This regulation device is intended in particular to meet national standards for buildings, such as the French standard NV65 which details, depending on the geographical location, the effects of wind on buildings and dynamic pressures due to wind, as well as the effects height above the ground in terms of dynamic pressure.
  • This device is therefore particularly suitable for the rehabilitation of roof terraces, and can be installed very simply by any person, such as a landscaper in charge of the rehabilitation or design of the external lining of the roof, by placing the regulating means around the opening of the evacuation pipe and by weighing these means.
  • this device allows simplified maintenance because it is sufficient to raise the ballast means to be able to intervene on the control means or on the evacuation pipe.
  • the average density of the regulating device is greater than the density of the water, which is of the order of 1000 kg / m 3 depending on the temperature and the composition of the rainwater, to prevent the device from floating during the rise of rainwater on the roof.
  • the so-called upstream arrangement covers all the arrangements where said regulating means are interposed between the roof surface and the evacuation pipe during the evacuation of the rainwater, so that the rainwater circulates from the roof surface into the exhaust pipe via said regulating means; said regulating means being for example adapted to control the delay of the discharge or the evacuation of rainwater, in other words to control the discharge rate of water according to the level of water reached on the roof surface.
  • said regulating means being for example adapted to control the delay of the discharge or the evacuation of rainwater, in other words to control the discharge rate of water according to the level of water reached on the roof surface.
  • the regulation means comprise a tubular body intended to bear on said roof surface around an opening of said rainwater discharge pipe and in which are formed calibrated rainwater passage openings.
  • the regulation means and more particularly the calibration of the orifices, are adapted to the local constraints of rejection in the networks of collection of rainwater and take into account of course the roof and in particular its surface. It is understood that the calibration of the orifices relate both to their number, their arrangement on the tubular body, their relative arrangement with respect to each other, their shape and their geometry.
  • the orifices can be adapted to control the delay of the discharge or the evacuation of the rainwater by controlling the flow of evacuation of water according to the level of water reached on the roof.
  • said tubular body is integral with a base intended to surround the flange of said opening of the discharge pipe.
  • said tubular body is inclined with respect to the base, in particular to facilitate its cleaning and / or to influence the discharge rate of rainwater.
  • the regulation means may comprise support members projecting from said base and intended to support said weighting means.
  • the ballast means are separate from the regulation means and are intended to be supported by the latter, so that the ballast means cover the regulation means and exert a force on said regulating means so as to press them against the roof surface.
  • This plating force is a function of the predetermined weight of ballast to meet the various constraints mentioned above.
  • the weighting means comprise at least one cavity intended to receive a material of predetermined mass, such as mortar or concrete, or even pieces of steel or chippings, that is to say any material likely to meet the weighting constraints mentioned above.
  • the ballast force is here a function of the volume of said cavity and the density of the material. This volume is of course predetermined to meet the various constraints mentioned above.
  • the installation of the device on a roof comprises a simple step of filling said cavity with a suitable material to ballast the whole against the roof surface.
  • the weighting means comprise a hollow body with a tubular wall plugged by an internal wall so as to delimiting said cavity, said ballast body being intended to cap said regulation means.
  • the weighting means comprise support members projecting from said inner wall of said hollow body and intended to cooperate with support members of said regulating means, so that said weighting means are supported by said regulating means .
  • ballast means are separate from the regulating means and are intended to be supported by the latter.
  • the support members of the weighting means and the regulating means comprise pairs of protuberances and cavities of complementary shape and intended to engage one into the other.
  • the protuberances and the cavities may be integral with one or the other of the weighting and regulation means. They also provide a centering function of the ballast means on the control means.
  • the protuberances and the cavities are of frustoconical general shape. They may also consist of a straight section, continuous section such as cross section or any other suitable section.
  • the regulating device comprises filtering means arranged around said regulating means and having filtering orifices arranged so as to retain elements external to said device such as detritus, chippings, leaves, in order to avoid that these elements clog the regulating means, and in particular its calibrated orifices.
  • the filtering means are arranged at a distance from the base of said tubular body of the regulating means.
  • This arrangement can for example be obtained by means of wedges arranged on the base of the tubular body of the regulating means.
  • the filtering means and the weighting means are integral with one another, in particular by forming a single piece.
  • the filtering means can thus be made of material with the weighting means, so that they form a single piece which is for example obtained by a molding process of a plastic material.
  • the characteristic relating to the fact that the filtering means are arranged at a distance from the base of said tubular body of the regulating means can be achieved by an adequate geometry of the support members of the weighting means and the means of regulation.
  • the filtering means comprise a tubular wall in which said filtering orifices are formed, said filtering wall projecting from the inner wall of the ballast hollow body and being opposite to the tubular wall of said weighting means.
  • the first piece 1 is illustrated alone figures 1 and 6 , with a variant partially illustrated in figure 7 .
  • the first piece 1 comprises a tubular body 10, open at both ends, and a flat base 11 surrounding at least partially one of the ends, said lower end, of said tubular body 10.
  • the base 11 and the lower end open of the tubular body 10 are intended to abut against the roof surface S.
  • the opposite open end of the tubular body 10, said upper end, is in turn intended to serve as an overflow for the evacuation of water.
  • the tubular body 10 is of revolution about a vertical axis Z and has a concave or frustoconical shape. This tubular body 10 is inclined relative to its base 11 in the direction of a reduction of its section between its lower end and its upper end.
  • Calibrated orifices 12, 13 are formed in the wall of the tubular body 10.
  • the orifices 12, 13 are calibrated and positioned according to the local stresses of discharge in the rainwater collection networks and also of the roof concerned, as its surface or other parameters related to the different layers placed on said roof.
  • the orifices 12 consist of vertical slots, in other words parallel to the vertical axis Z, extending from the lower end and therefore from the base 11.
  • the number, the width, the height and the inclination of the orifices 12 are of course predetermined to meet the requirements mentioned above. It is thus conceivable that these orifices 12 extend horizontally or in an inclined manner (between the vertical position and the horizontal position) from or away from the lower end and thus from the base 11.
  • the figure 7 illustrates an alternative embodiment of said tubular body 10, wherein the orifices consist of the vertical slots 12 already mentioned above, but also of horizontal slots 13 extending perpendicular to the vertical axis Z. These horizontal slots 13 are arranged above the vertical slots 12 and are arranged close of the upper end of the tubular body 10. These horizontal slots 13 are adapted to allow additional passage of rainwater before reaching the overflow. The number, width, height and inclination of the orifices 13 are of course predetermined to meet the requirements mentioned above.
  • These parameters are, at least in part, a function, in particular, of the surface of the roof, the intensity of the rains to be taken into account, the reception capacity of the sewers in terms of the evacuation flow of the rainwater, the dimensions the rainwater drainage pipe (such as its diameter), etc.
  • tubular body 10 may comprise internal ribs 14 integral with the internal face of said body 10, and intended to stiffen the first piece 1, in particular to enable it to withstand the force exerted by the weighting means 2, and possibly to allow a centering of said tubular body 10 on an opening of the discharge pipe.
  • the first part 1 also has protuberances 15 protruding from the base 11 in the direction of the upper end of the tubular body 10.
  • These protuberances 15 are in a general form of frustoconical stud. These protuberances 15 exceed the upper end of the tubular body 10 having a height greater than the height of the tubular body 10.
  • These protuberances 15 extend parallel to the vertical axis Z. These protuberances 15 are regularly distributed around the vertical axis Z, for example every 90 ° being four in number.
  • the second piece 2 is illustrated alone figures 2 , 3 and 5 , with a variant partially illustrated in figure 8 .
  • the second piece 2 comprises a hollow body 20 open at both ends, comprising a tubular wall 21 whose internal space is divided in two by an inner wall 22.
  • the tubular wall 21 is of revolution about a vertical axis Z ' and is generally cylindrical in shape.
  • the inner wall 22 is substantially perpendicular to the vertical axis Z 'and completely fills the inner face of the tubular wall 21.
  • the tubular wall 21 and the inner wall 22 delimit two cavities, respectively an upper cavity 23 and a lower cavity. 24, which are not directly in communication with each other.
  • the upper cavity 23 is part of the weighting means of the regulating device according to the invention, being intended to receive an adequate amount of material, such as for example concrete or mortar.
  • this upper cavity 23 is delimited by a portion 21a of the tubular wall 21, said upper wall, and the inner wall 22 which thus forms the bottom of said upper cavity 23 on which said material will rest.
  • the lower cavity 24 is delimited by the other part 21b of the tubular wall 21, called the lower wall, and by the inner wall 22 which thus forms the cover of said lower cavity 24.
  • the regulating device comprises filtering means 3 which are intended to at least partially surround the tubular body 10 of the regulating means 1, and which are provided with filtering orifices 30 in order to act as a filter for the elements external to said device.
  • these filtering orifices 30 are formed in the lower part 21b of the tubular wall 21 of the second part 2.
  • These orifices 30, for example of cylindrical shape, are regularly distributed both vertically and at the same time. along the perimeter of the lower portion 21b of the wall 21, forming for example two parallel lines of orifices 30 regularly spaced.
  • this lower portion 21b of the tubular wall 21 is part of the filtering means 3 of the regulating device according to the invention, and therefore the filtering means 3 are integrated with the weighting means so as to form only one and even piece 2.
  • the second piece 2 also comprises hollow protuberances 25 protruding from the inner wall 22 inside the upper cavity 23. These hollow protuberances 25 delimit an internal cavity 27 opening into the lower cavity 24. These hollow protuberances 25 are presented under a general form of hollow frustoconical stud, the internal cavities 27 also being of frustoconical shape. These hollow protuberances 25 extend parallel to the vertical axis Z '. These hollow protuberances 25 are regularly distributed around the vertical axis Z ', for example every 90 ° being four in number.
  • the second component 2 comprises internal ribs 28 disposed in the upper cavity 23 and integral with both the inner wall 22 and the tubular wall 21, so as to stiffen said second body 2.
  • the figure 8 illustrates an alternative embodiment of said second part 2, where the internal ribs 28 are no longer present.
  • the inner wall 22 has a central curved portion 220 extending into the upper cavity 23; said curved portion 220 being arranged to fit at least partially the tubular body 10 of the regulating means, without covering the overflow.
  • the curved portion 220 advantageously has a shape complementary to that of the tubular body 10, for example being of concave or frustoconical shape.
  • the filtering orifices 30 are here in the form of vertical slots opening at the lower end 29 of the tubular wall 21.
  • the first piece 1 can be obtained by a molding process of a plastic material, such as a polymeric material such as high density polyethylene.
  • the second piece 2 can be obtained by the same method.
  • the first part 1 is placed in abutment on the roof surface S above an opening 40 of a pipe evacuation 4 rainwater of said roof.
  • the base 10 abuts against said surface S and surrounds the rim of said opening 4.
  • the second piece 2 is capped on the first piece 1 by engaging the protuberances 15 of the first piece 1 in the internal cavities 27 of the corresponding hollow protuberances 25 of the second piece 2.
  • the shape of the protuberances 15 and internal cavities 27 are complementary and their respective dimensions are adapted so that there remains a game or a space 28 between the second body 2 and the base 11, and more particularly between the lower end 29 of the tubular wall 21 and said base 11.
  • the dimensions, or diameter, of the tubular wall 21 are greater than those of the tubular body 10.
  • the first body 10 supports the second body 2 via the complementary protuberances 15, 25.
  • the vertical axes Z and Z 'of the two parts 1, 2 are confused once styling done.
  • the upper cavity 23 is filled with the second body 2 of material in order to ballast the device.
  • it can then cover the roof surface S of different layers 5, 6 as layers of gravel or topsoil, or draining or filtering layers.
  • the rainwater flows first via the space 28 provided between the two parts 1, 2, as illustrated by the arrow E1, then via the calibrated orifices 12 of the first body 1, as illustrated by the arrow E2, to be finally discharged into the exhaust pipe 4, as illustrated by the arrow E3.
  • the control device according to the invention could for example take the shape of a half of the device described above.
  • the device described above and illustrated in the figures being of revolution about a vertical axis, this half would be for example obtained by symmetrical division along a vertical plane passing through said vertical axis of revolution.
  • this variant of the device would comprise a half-base that would always bear against the roof surface, and a vertical flat surface, corresponding to the surface contained in the dividing plane, which would bear against the wall, so that in the end to surround the orifice.
  • the dimensions of the device would of course be adapted to the dimensions of the orifice and also to the position of the orifice in said wall.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Sewage (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
EP20090152779 2008-02-15 2009-02-13 Vorrichtung zur Regulierung des Regenwasserablaufs von einer Dachfläche Withdrawn EP2090712A2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0800836A FR2927638A1 (fr) 2008-02-15 2008-02-15 Dispositif de regulation de l'evacuation des eaux pluviales d'une surface de toiture

Publications (1)

Publication Number Publication Date
EP2090712A2 true EP2090712A2 (de) 2009-08-19

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Application Number Title Priority Date Filing Date
EP20090152779 Withdrawn EP2090712A2 (de) 2008-02-15 2009-02-13 Vorrichtung zur Regulierung des Regenwasserablaufs von einer Dachfläche

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EP (1) EP2090712A2 (de)
FR (1) FR2927638A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106703305A (zh) * 2017-01-21 2017-05-24 广东省第建筑工程有限公司 机械式浮球弃流装置、雨水收集系统及屋面降温结构

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2633961A1 (fr) 1988-07-06 1990-01-12 Siplast Sa Systeme d'evacuation d'eaux pluviales
FR2747144A1 (fr) 1996-04-05 1997-10-10 Pont A Mousson Dispositif d'evacuation des eaux pluviales de la surface d'une toiture de batiment
FR2791722A1 (fr) 1999-04-01 2000-10-06 Pont A Mousson Dispositif d'evacuation des eaux pluviales a debit regule
FR2862676A1 (fr) 2003-11-21 2005-05-27 Saint Gobain Pont A Mousson Dispositif d'evacuation d'un liquide et dispositif de guidage de liquide correspondant

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1806527C3 (de) * 1968-11-02 1978-12-21 Josam Manufacturing Co., Michigan City, Ind. (V.St.A.) Flachdachablauf
US4400272A (en) * 1981-06-08 1983-08-23 Logsdon Duane D Drain grate with adjustable weirs
CA1179392A (en) * 1981-06-08 1984-12-11 Duane D. Logsdon Drain grate with adjustable weirs
DE19860160C2 (de) * 1998-12-24 2001-03-08 Wolfgang Vahlbrauk Wasserablauf
US6631588B1 (en) * 2002-03-19 2003-10-14 John W. Distler Clog-free roof drain cover
DE102004024904A1 (de) * 2004-05-19 2005-12-15 Wavin B.V. Wasserablauf für versiegelte ebene Flächen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2633961A1 (fr) 1988-07-06 1990-01-12 Siplast Sa Systeme d'evacuation d'eaux pluviales
FR2747144A1 (fr) 1996-04-05 1997-10-10 Pont A Mousson Dispositif d'evacuation des eaux pluviales de la surface d'une toiture de batiment
FR2791722A1 (fr) 1999-04-01 2000-10-06 Pont A Mousson Dispositif d'evacuation des eaux pluviales a debit regule
FR2862676A1 (fr) 2003-11-21 2005-05-27 Saint Gobain Pont A Mousson Dispositif d'evacuation d'un liquide et dispositif de guidage de liquide correspondant

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106703305A (zh) * 2017-01-21 2017-05-24 广东省第建筑工程有限公司 机械式浮球弃流装置、雨水收集系统及屋面降温结构

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