EP0002587B1 - Kehlrinnenverkleidung und Dach mit solchen Kehlrinnen - Google Patents

Kehlrinnenverkleidung und Dach mit solchen Kehlrinnen Download PDF

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Publication number
EP0002587B1
EP0002587B1 EP78300766A EP78300766A EP0002587B1 EP 0002587 B1 EP0002587 B1 EP 0002587B1 EP 78300766 A EP78300766 A EP 78300766A EP 78300766 A EP78300766 A EP 78300766A EP 0002587 B1 EP0002587 B1 EP 0002587B1
Authority
EP
European Patent Office
Prior art keywords
valley
ribs
strip
valley gutter
covering according
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
Application number
EP78300766A
Other languages
English (en)
French (fr)
Other versions
EP0002587A1 (de
Inventor
Dieter Spath
Karl-Heinz Hofmann
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.)
Cambio Ragione Sociale braas GmbH
Original Assignee
Braas GmbH
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 Braas GmbH filed Critical Braas GmbH
Publication of EP0002587A1 publication Critical patent/EP0002587A1/de
Application granted granted Critical
Publication of EP0002587B1 publication Critical patent/EP0002587B1/de
Expired 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
    • E04D13/0445—Drainage channels
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D3/00—Roof covering by making use of flat or curved slabs or stiff sheets
    • E04D3/40—Slabs or sheets locally modified for auxiliary purposes, e.g. for resting on walls, for serving as guttering; Elements for particular purposes, e.g. ridge elements, specially designed for use in conjunction with slabs or sheets
    • 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
    • E04D13/0445—Drainage channels
    • E04D2013/045—Drainage channels on inclined roofs
    • E04D2013/0454—Drainage channels on inclined roofs at the intersection of roof surfaces, e.g. roof valleys

Definitions

  • the invention relates to a valley gutter covering for valleys formed between two intersecting pitched surfaces of roofs covered with roofing slabs or tiles, comprising a deformable valley strip in the form of at least one band made of plastics material for fastening to the roof structure and whose longitudinal edges have a barrier which prevents the ingress of water, dust and/or driven snow, on which barrier rest in use the roofing tiles adjoining the valley and overlapping the lateral zones of the valley strip, which band of the valley strip comprises on both sides of a centre line a relatively non-distortable central zone.
  • valley strip made of plastics.
  • the known valley strip is designed as a relatively rigid flat strip which has a corrugation extending longitudinally along the centre line, which corrugation separates two flat areas from one another.
  • the barrier along each longitudinal edge is formed by a double-over layer of the strip, so that a hollow fold is formed for receiving clips or nails.
  • valley sheet or flashing having a web extending along the centre line in longitudinal direction, which web serves as a splash-guard and prevents rain water streaming down off of one roof surface from running under the covering of the other roof surface.
  • the object on which the invention is based lies in providing for a valley channel or gutter covering of the aforementioned type a valley strip which can be easily installed, which can be adapted to valley gutters of various shapes, which after installation forms a stable and durable valley gutter, and which enables the mechanical stresses caused by temperature variations and/or expansion and contraction of the roof structure to be taken up without visible distortion.
  • This invention provides a valley strip made of flexible and deformable plastics. To effect installation it is merely necessary to fit the valley strip, which thus undergoes flexible deformation, to the valley boarding and to fasten it in the edge zones by means of nails or the like. In this way there is provided a valley strip which can be readily installed and which can be adapted to almost all valley gutters existing in practice. Even the ribbed central area of the valley strip can be deformed flexibly to a small extent but, because of the ribs, is so strong that a stable and durable lining is obtained.
  • the valley strip In the ribless lateral zones between the edge zones and the central area, the valley strip merely has sufficient strength for these lateral zones to be capable of taking up, with possibly visible distortion, the mechanical stresses caused by temperature variations and/or the expansion and contraction of the roof structure. Since the chiselled ends of the roofing tiles overlap these lateral zones, such distortions are not visible on the finished roof. Accordingly, only the ribbed central area of the valley strip is visible from the exterior, which in view of its strength is not subject to any distortion. Consequently, an easily installed and stable valley gutter covering is obtained, which can be fitted to match a variety of valley gutter shapes and which always offers a neat and aesthetically attractive appearance.
  • the valley strip 10 consists of a flexible band 11 with a smooth underside and having ribs 12, 13, 14 and bulbous thickened portions 15 on the upper side.
  • the ribs and thickened portions are formed integrally with the band.
  • material for the valley strip 10 there may be used rot-resistant, weatherproof plastics materials which are flexibly deformable.
  • the valley strip consists of moderately hard, flexibly deformable polyvinyl chloride (PVC) and is manufactured by extrusion.
  • the width e of the valley strip 10 is preferably between 40 and 80 cm. It is possible for the valley strip 10 to be produced practically endlessly with a length of 10 m or more and is then sufficiently flexible that the endless valley strip can be rolled up into a roll.
  • the valley strip 10 consists of separate pieces of determinate length, preferably between 100 and 250cm. These valley strip pieces have at one end a ribless zone 17 (see Figure 2) across the entire width, which zone ensures reliable overlapping when the individual pieces are juxtaposed, so that an absolutely watertight valley strip covering is obtained.
  • the linear extension of this ribless zone 17 is about from 10 to 30 cm.
  • the thickness of the valley strip is chosen depending on the respective material and its flexural rigidity so that, on the one hand, satisfactory stability is ensured and, on the other hand, it is possible for the zones not strengthened with ribs to take up the mechanical stresses caused by temperature variations and/or the expansion and contraction of the roof structure by undergoing deformation but without splitting.
  • the valley strip consists, for example, of moderately hard polyvinyl chloride (PVC)
  • the flat band 11 has a uniform thickness of preferably 1.0 to 1.5 mm over its entire width e.
  • Ribs are formed in the central zone b on either side of the centre line a on the upper side of the flat band 11. This central zone b preferably extends over 1/4 to 1/2 of the entire width e of the valley strip 10. The ribs are arranged parallel at a distance from one another and extend without interruption in the longitudinal direction of the valley strip 10.
  • first narrow ribs 12, second broad ribs 13 and third low ribs 14 The majority of all the ribs is designed in the shape of the narrow ribs 12. Only the rib extending along the centre line a and also two outlying ribs adjacent the edges of the central zone b are designed as broad ribs 13.
  • the broad centre rib facilitates the determination of the centre line a when installing the valley strip 10 and assists in improving its cross-sectional rigidity.
  • the broad ribs 13 at the edge of the central profiled portion also ensure increased cross-sectional rigidity and they delimit those areas of the flat band 11 into which the distortion 18 (see Figure 6) can extend in a controlled manner.
  • the ribs 12 also assist in increasing the cross sectional rigidity of the strip 10.
  • the narrow ribs 12 and the broad ribs 13 have substantially the same height which corresponds approximately to between 2 and 5 times the thickness of the flat band 11. Additionally, a small number of low ribs 14 can be provided in the edge zone of the central region b. the low ribs 14 essentially have a visual purpose and are intended to make less harsh the transition from the central zone b into the ribless lateral zones c and they do not allow these ribless lateral zones to appear so wide. Preferably, about 16 to 24 ribs are formed in the central zone b, an equal distance being provided between each rib.
  • the valley strip 10 is also deformable in the central zone b and can be fitted to match the shape of the respective valley gutter, while, on the other hand, a durable valley gutter covering is obtained which enables relatively small gaps in the valley boarding to be readily spanned.
  • the valley strip 10 On the valley strip 10 the ribbed central zone b is adjoined on either side by a ribless lateral zone c. As evident from . Figures 3 and 4, these lateral zones c are each overlapped on the finished roof by the roofing slabs or tiles 20 bordering on the valley. In the lateral zones c the valley strip 10 merely has the thickness of the flexible band 11, so that these lateral zones c are more flexible and more readily deformable than the central zone b.
  • the lateral zones c are intended, in particular, to take up the mechanical stresses caused by temperature variations and/or the expansion and contraction of the roof structure, in which case it is possible for distortions 18 to develop, which are plainly visible (see Figure 6).
  • the lateral zones c are adjoined in each case by the edge zones d.
  • a barrier is formed which in the finished roof prevents the ingress of water, dust and/or driving snow beneath the roof covering.
  • this barrier it is possible, for example, to fold over the flat band 11 inwards, so that a hollow fold is formed in the edge zones d.
  • the barrier is designed as a bulbous thickened portion 15 of the valley strip 10 in the edge zones d. As evident from figures 3 and 4, the underside of those roofing tiles 20 bordering on the valley rests directly on this bulbous thickened portion 15.
  • a longitudinally extending nailing groove 16 is recessed in the bulbous thickened portion 15, through which groove nails 21 are driven into the underlying valley boarding 22 or into a support batten 23 mounted thereon.
  • the height of the bulbous thickened portion 15 corresponds, preferably, to the height of the ribs 12 and 13.
  • Figures 3 and 4 each illustrate diagrammatically a valley gutter covering according to the invention.
  • the valley strip 10 rests in each case on the valley boarding 22.
  • the valley boarding 22 is mounted on a valley beam 24; alternatively, the valley boarding 22 can be fastened to the rafters 25 or can be lowered between them.
  • nails 21 are driven into the valley boarding 22, or into the support batten 23 resting on the valley boarding 22, in the vicinity of the bulbous thickened portion 15 along the nailing groove 16; the additional use of the support batten 23 ( Figure 4) is recommended particularly for roofs with shallow pitch.
  • the roofing tiles 20 bordering on the valley rest with their underside on the bulbous thickened portion 15, so as to form a tight seal which reliably prevents the ingress of water, dust and/or driving snow beneath the roofing.
  • the roofing tiles 20 overlap the ribbed central zone b of the valley strip 10 is visible, which zone is in close contact with the valley boarding 22, has no distortions and, therefore, always presents a neat and aesthetically attractive appearance.
  • Figure 5 illustrates diagrammatically the installation of a valley strip 10 composed of separate pieces.
  • the valley boarding 22 is fastened to the valley beam 24 and to the rafters 25.
  • An individual valley strip piece 10 is placed on the valley boarding 22, fitted to match the shape thereof and fastened by means of nails 21 in the vicinity of the bulbous thickened portion 15 along the nailing groove 16.
  • the individual valley strip piece 10 has at one end a ribless zone 17 which extends across the entire width and in which a fluidtight overlap with the underside of the adjacent valley strip piece 10 is possible, so that a fluidtight valley gutter covering is obtained.
  • Figure 6 illustrates diagrammatically the formation of distortions in the valley strip.
  • the fastening is effected merely by means of nails 21 which in the vicinity of the bulbous thickened portion 15 along the nailing groove 16 are driven through the valley strip 10 into the valley boarding 22.
  • the illustrated distortions 18 develop between the fastening points.
  • These distortions 18 develop by design in the ribless lateral zones c which in both directions exhibit relatively small moments of resistance.
  • FIGS. 7 and 8 each illustrate a finished roof with the valley gutter covering according to the invention. In conventional manner the roofing tiles 20 approach the valley gutter obliquely, so that the tiles have to be cut at this point and an edge composed of chiselled ends is formed.
  • This edge overlaps with the chiselled ends the ribless lateral zones c of the valley strip 10. Accordingly, only the central zone b provided with ribs 12, 13 is visible to an observer, said central zone being free of distortions, as a result of its increased cross-sectional rigidity.
  • the central zone b forms a stable and durable lining, so that the roof can be walked on without danger in the region of the valley, even if the valley boarding 22 has small gaps.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)

Claims (14)

1. Kehlrinnenabdeckung für Kehlen, die zwischen zwei zusammentreffenden geneigten Flächen von mit Dachplatten oder Dachzeigeln eingedeckten Dächern gebildet werden, bestehend aus einem verformbaren Kehlstreifen (10) in Form von wenigstens einem Band (11) aus Kunststoff zur Befestigung an der Dachkonstruktion, dessen Längsränder (d) eine Sperre (15) aufweisen, die das Eindringen von Wasser, Staub und/oder Flugschnee verhindert, wobei die an die Kehle angrenzenden und die Seitenbereiche (c) des Kehlstreifens (10) überdeckenden Dacheindeckungsplatten nach der Verlegung auf der Sperre (15) aufliegen, und das Band (11) des Kehlstreifens (10) beidseitig der Mittellinie (a) einen relative verformungsfreien Mittenbereich (b) aufwesit, dadurch gekennzeichnet, daß das Band (11) flexibel ist, der Mittenbereich (b) auf seiner Oberseite eine Anzahl von im Abstand zueinander angeordneten Rippen (12, 13, 14) aufweist, die sich in Längsrichtung des Bandes zur Verstärkung desselben erstrecken, und ein Seitenbereich (c) vorgesehen ist, der an den jeweiligen Mittenbereich (b) angrenzt, wobei der Seitenbereich (c) in einer Zone anzuordnen ist, die im wesentlichen von den Dachplatten (20) bedeckt wird, und der genannte Seitenbereich (c) rippenfrei ist, so daß durch Ausdehnung und Zusammenziehung verursachte Verformungen durch Biegung des Seitenbereichs (c), bevorzugt gegenüber dem Mittenbereich (b), aufgenommen werden.
2. Kehlrinnenabdeckung nach Anspruch 1, dadurch gekennzeichnet, daß der Mittenbereich (b), der mit Rippen (12, 13, 14) versehen ist, 1/4 bis 1/2 der Breite (e) des Kehlstreifens (10) beträgt.
3. Kehlrinnenabdeckung nach Anspruch 1 oder Anspruch 2, dadurch gekennzeichnet, daß erste Rippen (12) und zweite Rippen (13) mit größerer Dicke als die ersten Rippen (12) vorgesehen sind, wobei die Rippen entlang der Mittellinie (a) und eine Rippen in der Nähe des jeweiligen Randes des Mittenbereichs (b) aus zweiten Rippen (13) bestehen.
4. Kehlrinnenabdeckung nach Anspruch 3, dadurch gekennzeichnet, daß die ersten und zweiten Rippen (12, 13) im wesentlichen die gleiche Höhe aufweisen, und diese Höhe der 2- bis 5-fachen Dicke des flexiblen Bandes (11) entspricht.
5. Kehlrinnenabdeckung nach einem der Ansprüche 3 oder 4, dadurch gekennzeichnet. daß zwischen 16 und 24 erste und zweite Rippen (12, 13) vorgesehen sind.
6. Kehlrinnenabdeckung nach einem der Ansprüche 3 bis 5, dadurch gekennzeichnet, daß dritte Rippen (14) mit geringerer Höhe als die ersten und zweiten Rippen an die zweiten Rippen (13) angrenzend ausgebildet sind.
7. Kehlrinnenabdeckung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Sperre die Form einer wulstartigen Verdickung (15) im Randbereich (d) des Kehlstreifens (10) aufweist.
8. Kehlrinnenabdeckung nach Ansprüch 7, dadurch gekennzeichnet, daß eine Nagelrillo (16) in der wulstartigen Verdickung (15) ausgespart ist.
9. Kehlrinnenabdeckung nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß die Dicke des flexiblen Bandes (11) etwa 1,0 bis 1,5 mm beträgt.
10. Kehlrinnenabdeckung nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß die Breite (e) des Kehlstreifens (10) etwa 40 bis 80 cm beträgt.
11. Kehlrinnenabdeckung nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, daß der Kehlstreifen (10) in Längen vin 10m oder mehr ausgebildet ist und zu einer Rolle aufgewickelt werden kann.
12. Kehlrinnenabdeckung nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, daß der Kehlstreifen (10) aus Stücken bestimmter Länge von 100 bis 250 cm besteht, die an einem Ende einen rippenfreien Bereich (17) aufweisen, der sich über die gesamte Breite (e) erstreckt.
13. Kehlrinnenabdeckung nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, daß der Kehlstreifen (10) aus mittelhartem, flexiblem und verformbaren PVC besteht und durch Extrudieren hergestellt worden ist.
14. Dach mit einer Kehlrinne und bestehend aus einer Dachkonstruktion, einer Kehlrinnenabdeckung, die an der Dachkonstruktion befestigt ist, sowie einer Anzahl von Dachplatten oder Dachziegeln, die das Dach eindecken und Randbereiche der Kehlrinnenabdeckung überdecken, dadurch gekennzeichnet, daß die Kehlrinnenabdeckung, wie in einem der vorhergehenden Ansprüche beansprucht, ausgeführt ist.
EP78300766A 1977-12-09 1978-12-07 Kehlrinnenverkleidung und Dach mit solchen Kehlrinnen Expired EP0002587B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19772755011 DE2755011A1 (de) 1977-12-09 1977-12-09 Kehlrinneneindeckung
DE2755011 1977-12-09

Publications (2)

Publication Number Publication Date
EP0002587A1 EP0002587A1 (de) 1979-06-27
EP0002587B1 true EP0002587B1 (de) 1982-10-20

Family

ID=6025756

Family Applications (1)

Application Number Title Priority Date Filing Date
EP78300766A Expired EP0002587B1 (de) 1977-12-09 1978-12-07 Kehlrinnenverkleidung und Dach mit solchen Kehlrinnen

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Country Link
EP (1) EP0002587B1 (de)
AT (1) AT364509B (de)
DE (2) DE2755011A1 (de)
DK (1) DK144628C (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2121082A (en) * 1982-06-01 1983-12-14 Danelaw Laminates Ltd Roof weatherproofing element
DE3511089A1 (de) * 1984-10-24 1986-04-24 Oskar 4354 Datteln Fleck Verkleidungselement fuer eine dachkehle
GB2197359B (en) * 1986-11-12 1990-11-14 Raymond William Bunting Roof flashing
DE3828297C2 (de) * 1988-06-14 1994-01-20 Alfons Knoche Abdeckungselement für Kehlrinnen
DE19629804A1 (de) * 1996-07-24 1998-02-05 Gima Gipser Und Malerbedarf Gm Dachseiher

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1769648A1 (de) * 1967-06-26 1971-10-21 Trelleborgs Gummifabriks Ab Elastische,witterungsfeste Dichtungshaut

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE215451C (de) * 1908-05-13 1909-11-02
US1028512A (en) * 1911-09-05 1912-06-04 Jacob F Weitzel Drainage-gutter.
US1696159A (en) * 1926-04-05 1928-12-18 Lord & Burnham Company Combination outlet and gutter construction for greenhouses
US2258078A (en) * 1940-01-22 1941-10-07 James D Tennison Roof valley
GB1248204A (en) * 1967-10-30 1971-09-29 Plastriers Ltd Improvements in gutter members
GB1251269A (de) * 1969-05-23 1971-10-27
DE2334922A1 (de) * 1973-07-10 1975-01-30 Inefa Kunststoffe Ag Dichtungsstreifen, insbesondere fuer kunststoffdachrinnenteile mit halbrundprofil und/oder kunststoffrohre

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1769648A1 (de) * 1967-06-26 1971-10-21 Trelleborgs Gummifabriks Ab Elastische,witterungsfeste Dichtungshaut

Also Published As

Publication number Publication date
DE2755011A1 (de) 1979-06-13
DE2862067D1 (en) 1982-11-25
AT364509B (de) 1981-10-27
DK144628C (da) 1982-09-27
EP0002587A1 (de) 1979-06-27
DK144628B (da) 1982-04-19
ATA754978A (de) 1981-03-15
DK554478A (da) 1979-06-10

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