EP0940520B1 - Drain pour toit plat et toit plat avec drain - Google Patents

Drain pour toit plat et toit plat avec drain Download PDF

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Publication number
EP0940520B1
EP0940520B1 EP99104548A EP99104548A EP0940520B1 EP 0940520 B1 EP0940520 B1 EP 0940520B1 EP 99104548 A EP99104548 A EP 99104548A EP 99104548 A EP99104548 A EP 99104548A EP 0940520 B1 EP0940520 B1 EP 0940520B1
Authority
EP
European Patent Office
Prior art keywords
flat roof
base portion
lowered
drain
roof
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.)
Expired - Lifetime
Application number
EP99104548A
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German (de)
English (en)
Other versions
EP0940520A3 (fr
EP0940520A2 (fr
Inventor
Wolfgang Dipl.-Ing. Vahlbrauk
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Individual
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Individual
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Publication date
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Application filed by Individual filed Critical Individual
Publication of EP0940520A2 publication Critical patent/EP0940520A2/fr
Publication of EP0940520A3 publication Critical patent/EP0940520A3/fr
Application granted granted Critical
Publication of EP0940520B1 publication Critical patent/EP0940520B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • E04D13/0431—Drainage outlets, e.g. gullies with horizontal evacuation over the border of the roof

Definitions

  • the invention relates to a flat roof water drain with a Drain box and an adjoining drain pipe, the for essentially horizontal implementation through a roof edge is intended for a downpipe, the drain box has a floor whose width is greater than the clear one The diameter of the drain pipe is and the bottom of the drain box a non-lowered floor section and one over a step has lowered bottom portion.
  • the invention further relates to a flat roof with such a flat roof water drain.
  • the invention further relates to a flat roof water drain a drain box and a drain pipe connected to it, that for essentially horizontal implementation an edge upturn to a downpipe is determined, the Drain box has a bottom whose width is larger than that clear diameter of the drain pipe.
  • the invention relates also a flat roof with such a flat roof water drain.
  • the DIN standard 19619 writes for processes for rainwater maximum damming levels before discharge and minimum discharge quantities for predetermined nominal or nominal widths of the drain pipe.
  • a nominal width of 100 mm for example, is a minimum discharge quantity of 4.5 l / s and a maximum accumulation height of 35 mm specified.
  • GB-A-2 287 042 is a flat roof water drain at the entrance known type known.
  • An essentially L-shaped drain piece draws a trough-shaped lowered section of the floor before, which merges almost continuously into a pipe connection which a horizontally installed drain pipe can be pushed on.
  • the lowered trough of the floor ensures that the water runs off into the horizontal drain pipe.
  • GB-A-2 065 743 and DE-U-1 748 988 also disclose processes with tubes falling downwards.
  • the present invention is therefore based on the problem off, a flat roof drainage through a penetration of a To allow roof edge closure with which the flow rates can be increased and the maximum accumulation levels can be reduced.
  • the invention is based on the knowledge that the previous Considering the drainage problem as a drainage problem with a free surface from a purely hydrostatic point of view, according to which the flow rate and the flow rate by the nominal size of the drain pipe and the dam height before Depending on the mouth of the drain pipe, not only that of the invention can solve the underlying problem.
  • measures influencing the hydrodynamics namely using at least two accelerations of water flow at least one by step-like lowering. there has shown that at least two accelerations are required are to the desired effect of a significant increase to achieve the drainage rate at low water retention levels.
  • the step-like lowering therefore has the effect that a damming reaction of the flowing water on the front dammed water standing at the outlet avoided or at least is significantly reduced, so that a largely backflow free Drainage of water from the flat roof is achieved.
  • the high of step-like lowering of the water flow, that of the acceleration serve the water is already due to the installation conditions limited, the only relatively small step-like subsidence allow (maximum a few centimeters).
  • the acceleration effect according to the invention towards the drain pipe also only when received a continuous flow remains, so the water flow does not at the step-like subsidence tears off like a waterfall.
  • the step-like depressions dimensioned so that after Formation of a constant accumulation height of the water on the Flat roof a steadily flowing water surface in the area of gradual reductions are retained.
  • the drain pipe arranged so that it is due to low water levels on the flat roof is already completely filled, as it is with its cross section does not cover the surface of the flat roof protrudes. It is thus offset in level compared to the Flat roof surface arranged.
  • the causes the measures according to the invention accelerated water flow in the drain pipe an additional suction effect, the acceleration effect transfers to the water to be drained on the flat roof and thus contributes to an increase in drainage performance.
  • the second acceleration of the flowing water becomes special executed effectively when the free diameter of the pipe end piece at least more than half below the lowered one Bottom section is located.
  • the method is particularly advantageous if the first step-like acceleration of the water across a flow range takes place, which is much larger than the flow width in the drain pipe. This also makes the filling the drain pipe is already supported at low accumulation heights.
  • the piece falling down according to the invention can be part of a be a piece of pipe sloping downwards, which may be together with a possibly only slightly inclined pipe section the drain pipe forms.
  • the sloping piece can be one have a larger diameter than a remnant of the drain pipe, whose diameter determines the nominal width of the drain pipe.
  • the piece sloping downwards can join with a mouth connect the lowered floor section.
  • the mouth can are only in the lowered section of the floor, in some cases, however, the lowered ones are also advantageous Bottom section and in a rear end wall of the drain box extend so the drain pipe is not too strong lower compared to the surface of the flat roof.
  • the stage for forming the lowered floor section and the The beginning of the piece falling down can flow be spaced apart.
  • For a minor Longitudinal expansion, especially for assembly of the whole Flat roof water drain inside the roof edge is useful is the beginning of the bottom section lowered by the step with the beginning of the sloping piece coincide.
  • Drain box with the piece falling down a uniform is prefabricated component.
  • the drain box can Roof surface be closed with a sieve arrangement, the can also be formed as a separate part.
  • the flat roof water drain according to the invention can be divided into several install advantageous arrangements.
  • According to the invention is therefore a flat roof with one over Roof insulation layer applied sealing layer and with a Flat roof water drain of the type mentioned above in a first principle embodiment characterized in that the lowered bottom section in one is only over part the thickness of the roof insulation layer extending recess the roof insulation layer is used.
  • the flat roof water drainage according to the invention therefore requires not that interfering with the load-bearing roof layer become. Rather, it is sufficient if only within the roof insulation layer penetration is provided. It can the mouthpiece of the flat roof water drain that slopes downwards below the lowered section of the floor and inside the roof insulation layer or that falling down Piece connected to the lowered floor section be that it is performed essentially within the edging is.
  • the flat roof is included the flat roof water drain according to the invention provided that the sunken bottom section of the flat roof water drain essentially completely arranged within the roof edge is.
  • FIG. 1 shows a load-bearing Ceiling structure 1, for example in the form of a concrete ceiling.
  • a barrier film 2 To the ceiling structure is covered by a barrier film 2, a Insulating insulating layer 3 of greater thickness and a sealing layer 4 completed, generally by several bitumen roofing membranes etc. is formed.
  • the edge of the roof structure 1 is closed by a roof edge 5 formed, which encloses the flat roof structure 1 trough-shaped and a supporting core 6, for example also from a concrete layer, having.
  • a roof edge 5 formed, which encloses the flat roof structure 1 trough-shaped and a supporting core 6, for example also from a concrete layer, having.
  • the core 6 Connects to the inside of the roof the core 6 to the seamlessly installed barrier film 2, which also covers the top of the core 6 and on the outside of the Roof edge finish 5 ends.
  • a corresponding insulation layer 7 is located on the outside of the core 6 and of the roof structure 1.
  • To the outside is the insulating layer 7 through a facade layer 8, for example in the form of a plaster layer, completed.
  • the edge upstand 5 is at the top by means of a crown material 9 spanning the entire width completed.
  • the sealing layer 4 is on the vertical inside the roof edge termination 5 continued and extends over the top of the wreath material 9 to the outside of the roof edge termination 5, so that there is an overlap with the Facade layer 8 results.
  • On the top of the roof edge 5 is a roof covering 5 completely overlapping Final profile 10 applied to the vertical Sides spaced from the sealing layer 4 ends.
  • An essentially horizontal drain pipe 11 opens out on the outside of the roof edge finish 5 in a vertical Downpipe 12, which is regularly a on its top Has ventilation opening.
  • the drain pipe 11 is through a pipe end piece 12 is formed, which via a conventional pipe socket connection 13 in an angled, falling down Piece 14 merges with an opening 15 connects to a substantially rectangular drain box 16.
  • the drain box 16 is shown in FIG Embodiment with a lying on the insulating layer 3 Connection base piece 17 provided, which is at right angles trained step 18 in a lowered bottom portion 19 passes.
  • the insulating layer 3 with a corresponding recess 20 provided in the illustrated Embodiment less than half of the The thickness of the insulating layer 3 extends.
  • the drain box 16 is through a rear end wall 21 and an upper cover wall 22 completed.
  • the drain box 16 extends in depth of the roof edge termination 5, so that the roof edge termination 5 with a corresponding recess 23 in the region of the insulating layer 3 and the core 6 is provided.
  • the cover wall 22 closes with the roof edge finish 5.
  • the mouth opening 15 thus extends over approximately half of the lowered bottom section 19 and half the height of the rear End wall 21.
  • the piece 14 is at an acute angle of about 30 ° down and angled so that it is only slightly (between 1 and 5 °) inclined drain pipe 12 continues.
  • the insertion movement of the drain box 16 into the recess 23 the roof edge finish 5 is through a vertical wall piece 24 limited.
  • the L-shaped inlet opening of the drain box 16 is through a correspondingly angled screen grid 25 covered, which retains coarse impurities.
  • Figure 2 shows that the drain box 16 in one piece with the falling piece 14 is formed and in this form can be assembled as a standard component.
  • the approach of the drain pipe 12 on the piece 14 allows adaptation to different thicknesses the edge upstand 5 and the respective local conditions.
  • Figure 3 shows that the stage 18 not only in the flow direction but is also formed laterally and a width of lowered bottom section 19 defines that much wider than the diameter of the tubular piece 14 or the mouth opening 15 is.
  • the corresponding context also leaves recognize the frontal top view according to Figure 4.
  • Figure 5 shows that the roof structure described regularly by a gravel fill 25 is covered and that keeping the Inlet opening of the drain box 16 through a mesh cage 26 can take place, which is designed as a separate part.
  • the drain box 16 is completely in the recess 20 the insulating layer 3 housed. Accordingly, that closes Piece 14 sloping downwards and goes into the with End pipe section 12 of the drain pipe 11 overlapping leg, which is passed through the roof edge termination 5.
  • the pipe end piece 12 of this embodiment is thus opposite the pipe end piece 12 extended in the embodiment of Figure 1.
  • the leg of piece 14 running diagonally downward is exclusive performed in the insulating layers 3, 7.
  • Figures 7 to 9 illustrate that the rest of the arrangement stage 18 and the second acceleration causing downward mouth opening 15 is completely the same as in the first embodiment shown in Figures 1 to 5.
  • Figure 10 illustrates that the opening of the drain box 16 the level of the flat roof is larger and therefore a larger one Mesh box 26 needed.
  • FIGS. 11 to 14 A third exemplary embodiment is shown in FIGS. 11 to 14 shown.
  • the drain box 16 is completely in the roof edge termination 5, so that the insulating layer 3 of the Flat roofs remain practically untouched.
  • a lateral drain is available stands, is by the inventive design of a stage 18th and a second acceleration due to the falling Piece 14 the DIN-compliant minimum flow rate by a given Nominal diameter of the drain pipe 11 reached.
  • the mouth opening 15 of the piece 14 is in this embodiment completely in the range of that lowered by level 18 Bottom section 19. Incidentally, the one that slopes downwards Piece 14 in turn angled to the connection to produce the drain pipe 11.
  • the drain box 16 is only in the area of the roof edge finish 5. However, it is essential shorter, so that the mouth opening 15 both in the lowered bottom section 19 as well as in the rear End wall 21 extends into it.
  • the drain box 16 is the front edge of the mouth opening 15 under level 18, which is at the butt joint between the roof edge 5 and the insulating layer 3 of the roof structure 1 is. Since the width of the stage 18 is much larger than the width of the mouth opening 15 finds the invention Accelerating the outflowing water twice in relevant Way instead.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
  • Sink And Installation For Waste Water (AREA)

Claims (14)

  1. Drain pour toit plat, comprenant une boíte d'évacuation (16) et un tube d'évacuation (11) qui s'y raccorde et qui est destiné à traverser sensiblement horizontalement une fermeture de bord de toit (5) ou un bord relevé, en direction d'une conduite descendante (12), la boíte d'évacuation (16) présentant un fond (17, 19) dont la largeur est supérieure au diamètre de passage du tube d'évacuation (11), et le fond (17, 19) de la boíte d'évacuation (16) présentant une partie de fond non-surbaissée (17) et une partie (19) du fond qui est surbaissée par un décrochement (18), caractérisé en ce que le tube d'évacuation (11) comprenant une pièce descendant vers le bas (14) et un embout tubulaire (11') tout au plus légèrement incliné se raccorde à la partie surbaissée (19) du fond de telle manière que le diamètre de l'embout tubulaire (11') s'étend entièrement en-dessous de la partie non-surbaissée (17) du fond.
  2. Drain pour toit plat selon la revendication 1, caractérisé en ce que le diamètre de l'embout tubulaire (11') s'étend en outre d'au moins plus que la moitié en-dessous de la partie surbaissée du fond (19).
  3. Drain pour toit plat selon la revendication 1 ou 2, caractérisé en ce que la pièce descendant vers le bas (14) présente un plus grand diamètre que l'embout tubulaire (11') du tube d'évacuation (11).
  4. Drain pour toit plat selon l'une des revendications 1 à 3, caractérisé en ce que l'embouchure (15) de la pièce descendant vers le bas (14) se trouve exclusivement dans la partie surbaissée du fond (19).
  5. Drain pour toit plat selon l'une des revendications 1 à 4, caractérisé en ce que l'embouchure (15) de la pièce descendant vers le bas (14) s'étend dans la partie surbaissée (19) du fond et dans une paroi d'extrémité arrière (21) de la boíte d'évacuation (16).
  6. Drain pour toit plat selon l'une des revendications 1 à 5, caractérisé en ce que le décrochement (18) et le début de la pièce (14) sont agencés à distance l'un de l'autre dans la direction d'écoulement.
  7. Drain pour toit plat selon l'une des revendications 1 à 6, caractérisé en ce que le début de la partie (19) du fond qui est surbaissée par le décrochement (18) coïncide avec le début de la pièce (14).
  8. Drain pour toit plat selon l'une des revendications 1 à 7, caractérisé en ce que la boíte d'évacuation (16) forme avec la pièce (14) un composant préfabriqué unitaire.
  9. Drain pour toit plat selon l'une des revendications 1 à 8, caractérisé en ce que la boíte d'évacuation (16) est fermée vers la surface du toit au moyen d'un agencement de tamis (25, 26).
  10. Drain pour toit plat selon la revendication 9, caractérisé en ce que l'agencement de tamis (25, 26) est constitué par une pièce séparée.
  11. Toit plat comprenant une couche d'étanchéité (4) placée sur une couche d'isolation (3) et comprenant un drain pour toit plat selon l'une des revendications 1 à 10, caractérisé en ce que la partie surbaissée (19) du fond est insérée dans un évidement (20) de la couche d'isolation du toit (3), lequel évidement ne s'étend que sur une partie de l'épaisseur de la couche d'isolation du toit (3).
  12. Toit plat selon la revendication 11, caractérisé en ce que la pièce descendant vers le bas (14) passe sous la partie surbaissée (19) du fond et à l'intérieur de la couche d'isolation du toit (3).
  13. Toit plat selon la revendication 11 ou 12, caractérisé en ce que la pièce descendant vers le bas (14) est raccordée à la partie surbaissée (19) du fond de manière à passer pour l'essentiel à l'intérieur de la fermeture de bord de toit (5).
  14. Toit plat comprenant un drain pour toit plat selon l'une des revendications 1 à 10, caractérisé en ce que la partie surbaissée (19) du fond est pour l'essentiel entièrement agencée à l'intérieur de la fermeture de bord de toit (5).
EP99104548A 1998-03-06 1999-03-08 Drain pour toit plat et toit plat avec drain Expired - Lifetime EP0940520B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19809488 1998-03-06
DE19809488A DE19809488C2 (de) 1998-03-06 1998-03-06 Flachdach-Wasserablauf und Flachdach mit einem Flachdach-Wasserablauf

Publications (3)

Publication Number Publication Date
EP0940520A2 EP0940520A2 (fr) 1999-09-08
EP0940520A3 EP0940520A3 (fr) 2001-01-03
EP0940520B1 true EP0940520B1 (fr) 2003-07-30

Family

ID=7859845

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99104548A Expired - Lifetime EP0940520B1 (fr) 1998-03-06 1999-03-08 Drain pour toit plat et toit plat avec drain

Country Status (4)

Country Link
EP (1) EP0940520B1 (fr)
AT (1) ATE246292T1 (fr)
DE (1) DE19809488C2 (fr)
DK (1) DK0940520T3 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10104530A1 (de) * 2001-01-31 2002-08-14 Sita Bauelemente Vorrichtung zur Entwässerung von Flachdächern mit einem Randabschluss
DE102008034016A1 (de) * 2008-07-17 2010-02-04 Vahlbrauk, Wolfgang, Dipl.-Ing. Ablaufeinrichtung mit einer durch einen Randabschluss hindurchführenden Rohrleitung
DE202012001550U1 (de) * 2012-02-15 2012-04-02 Kessel Ag Ablauf mit einem Ablaufkörper

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1784988C3 (de) * 1967-01-21 1974-06-06 Traugott Baden Aargau Schoop (Schweiz) Dachwassereinlauf. Ausscheidung aus: 1600597
GB2065743A (en) * 1979-11-16 1981-07-01 Medical & Scient Structures Lt Rainwater drainage system for prefabricated building
JP2670237B2 (ja) * 1994-03-04 1997-10-29 株式会社アルテック 横型ドレーン

Also Published As

Publication number Publication date
DE19809488C2 (de) 2002-08-08
DE19809488A1 (de) 1999-09-23
ATE246292T1 (de) 2003-08-15
EP0940520A3 (fr) 2001-01-03
DK0940520T3 (da) 2003-11-17
EP0940520A2 (fr) 1999-09-08

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