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EP0410822B1 - Metalldacheindeckung und Auflagen für solche Eindeckung - Google Patents

Metalldacheindeckung und Auflagen für solche Eindeckung Download PDF

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Publication number
EP0410822B1
EP0410822B1 EP90401296A EP90401296A EP0410822B1 EP 0410822 B1 EP0410822 B1 EP 0410822B1 EP 90401296 A EP90401296 A EP 90401296A EP 90401296 A EP90401296 A EP 90401296A EP 0410822 B1 EP0410822 B1 EP 0410822B1
Authority
EP
European Patent Office
Prior art keywords
plates
frustoconical
metal plates
shaped
intermediate plate
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
EP90401296A
Other languages
English (en)
French (fr)
Other versions
EP0410822A1 (de
Inventor
Patrick Blosseville
Claude Dubrac
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.)
UNION MINIERE FRANCE S.A. TE BAGNOLET, FRANKRIJK.
Original Assignee
Vieille-Montagne France SA
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 Vieille-Montagne France SA filed Critical Vieille-Montagne France SA
Priority to AT90401296T priority Critical patent/ATE74989T1/de
Publication of EP0410822A1 publication Critical patent/EP0410822A1/de
Application granted granted Critical
Publication of EP0410822B1 publication Critical patent/EP0410822B1/de
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
    • E04D3/00—Roof covering by making use of flat or curved slabs or stiff sheets
    • E04D3/36—Connecting; Fastening
    • E04D3/361—Connecting; Fastening by specially-profiled marginal portions of the slabs or sheets
    • E04D3/362—Connecting; Fastening by specially-profiled marginal portions of the slabs or sheets by locking the edge of one slab or sheet within the profiled marginal portion of the adjacent slab or sheet, e.g. using separate connecting elements
    • 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
    • E04D13/17—Ventilation of roof coverings not otherwise provided for
    • 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
    • E04D3/36—Connecting; Fastening
    • E04D3/361—Connecting; Fastening by specially-profiled marginal portions of the slabs or sheets
    • E04D2003/3615—Separate fastening elements fixed to the roof structure and consisting of parts permitting relative movement to each other, e.g. for thermal expansion

Definitions

  • the present invention relates to a metal covering for building roofs placed on a non-ventilated roofing support, for example of rigid concrete forming a reception table, and consisting of metal plates made of a corrosion-resistant material, such as zinc, intended to fit together in contact with each other by creating channels arranged in the direction of the slope of the roof. It also relates to angle supports for the cover according to the invention.
  • Metal covers, in particular zinc, as described for example in DE-A-3 600 026, are now used for roofs or cladding or gutters in a highly corrosive industrial environment or in an urban environment that is also very polluted.
  • the frames of these roofs are generally no longer made of ventilated wood like that of noble or urban roofs of previous centuries, but concrete which theoretically constitutes a more resistant material over time than wood. Many corrosion phenomena of these roofs placed on concrete supports are however reported.
  • sealed continuous intermediate plates made of a soft and elastic material, electrically and chemically neutral with respect to the metal plates, for example made of plastic, are fixed directly to the resistant support forming a table, using rods or screws which pass through the intermediate plate in a sealed manner and the head of which comes into contact with this plate and the metal plates are attached to support pieces placed on the intermediate plates and fixed to the support roofing using rods or screws sealingly passing through said intermediate plates, while asperities or intermediate elements distributed regularly over said intermediate plates are interposed between the metal plates and the intermediate plates, so as to provide ventilation space under metal plates and to use the intermediate plate assembly areas such as an under-roof capable of recovering possible leaks from the main roof made up of metal plates as well as the condensations likely to appear under the main roof.
  • the support pieces of the metal plates are fixed to the intermediate plates by pressing on the asperities or intermediate elements to allow a ventilation space to remain under these support pieces.
  • the support pieces of the metal plates are fixed to the intermediate plates by resting on the asperities or intermediate elements with interposition, at least in places, between the support piece and the intermediate plate, a sealing and / or support element such as an elastomer foam seal.
  • the asperities or intermediate elements are preferably formed in one piece with the intermediate plate and can constitute surface irregularities capable of at least partially absorbing the expansion of said intermediate plate.
  • the protrusions or monobloc intermediate elements with the plate are advantageously constituted by studs in a hollow truncated cone and with a substantially flat head which are evenly projecting on one side of a flat plate made of thin plastic material.
  • said wing when the support pieces have an angle section of which one of the wings is intended to be placed flat on the flat heads of several contiguous studs in truncated cone, said wing has truncated cone cavities whose small base is directed on the opposite side to the other wing of the support piece intended to cooperate with the metal plates and said truncated cone cavities have a projection height substantially equal to the height of projection of the truncated cones of the intermediate plate, so that said wing can come to bear simultaneously on the flat heads of the truncated cones of the intermediate plate and, by the bottom of its truncated cone cavities, directly on the intermediate plate .
  • the small base of the frustoconical cavities of the wing of the support part generally comprises a hole in which is likely to come to engage a rod or screw for fixing the support part on the non-ventilated support, with interposition of sealing means between this rod or screw and the intermediate plate.
  • the rods or screws passing through the intermediate plates are substantially sealed at the crossing of these plates by the simple fact of the close contact of the periphery of these rods or screws with the inner wall of a circular hole provided in these plates whose material is much more elastic than the metal of said rods or screws.
  • Roof or roof supports according to the invention having an angle section and intended to be fixed by one of the wings of the angle iron on a receiving surface are characterized in that the wing intended for the fixing presents cavities in frustoconical cone whose small base is directed on the side opposite to the other wing of the angle iron and in that the substantially flat bottom of the small base constitutes a bearing and fixing surface on said receiving surface.
  • the small base of the truncated cones has a hole for a fastening means on the receiving surface.
  • FIG. 4 there is shown the main elements of a zinc roof placed on a support non-ventilated concrete 1 here forming rigid reception table.
  • Adjacent zinc plates 2 and 3 form a central channel 4 which is arranged in the direction of the roof slope to evacuate water from the weather.
  • These zinc plates 2 and 3 which can be superimposed at the end have, on the lateral edge, different folds which combine.
  • the right fold 5 (according to the figure) has a wall at right angles with an edge 6 folded once on itself.
  • the left fold 7 (shown on the plate 3) is folded twice on itself on the edge 8, so as to surround the edge 6 of the plate 2 and to prevent any rise in water in the event of heavy rain.
  • the right and left folds 5 and 7 of the two adjacent zinc plates 2 and 3 are hung on a support piece 9 (see FIG. 3) which has the shape of an angle iron one of the wings 10 of which is disposed vertically between the two vertical walls of the folds 5 and 7.
  • the wing 10 has a longitudinal slot 11 in which engage the tabs 12 of hooks (not shown) crimped on the vertical walls of the edge folds 5 and 7.
  • each intermediate plate 14 is formed from a continuous flat plate 14a made of plastic material on which we have formed in the mass, for example by thermoforming, asperities 15 in a truncated cone constituting on the back surface of the plate 14 studs projecting at a low height h between 5 and 10 mm.
  • the frustoconical studs can have a diameter of large base comprised between 15 and 20 mm and a diameter of small base from 8 to 12 mm, the spacing between the studs being between 25 and 40 mm, preferably according to a square mesh.
  • FIG. 2 shows the attachment to the rigid concrete support 1 of the support piece 9 made of a material very resistant to corrosion such as stainless steel and in the form of an angle.
  • the other wing 17 of the support piece 9 has several frustoconical cavities 18 obtained by cold forming.
  • the cavities 18 engage in the spaces 19b formed between series of four frustoconical studs 15 (see FIG. 1) while the rest of the wing 17 comes to bear on two adjacent flat surfaces 16 of the frustoconical studs 15.
  • the bottom 19 of the cavity 18 comes to rest on the flat base part 16 of the intermediate plate 14 where it is fixed by a screw 20 which passes through a hole 19a made through the bottom 19 (see the FIG. 3) and which is screwed, for example, into an expansion sleeve 21 made of plastic, force-fitted with anti-extraction claws 21b inside a hole 22 drilled in the concrete of the rigid support 1.
  • screws 20a regularly distributed and which are screwed into expansion sleeves 21a, possibly shorter than the sleeve 21, and which are forcibly housed in holes 22a drilled in the concrete 1.
  • the head 23a of the screws 20a comes to bear on the flat surface 14a of the plate directly or by means of a flexible and rigid washer and may be surrounded if necessary by an elastomeric sealing layer 38.
  • the rod of the screws 20 and 20a can pass through a hole in the plate 14 drilled at a diameter slightly smaller than that of the rod of the screw, so that the elasticity of the walls of the hole ensures a tight tightness of the material of the plate 14, relatively soft on the rod of the screw 20 or 20a.
  • the heads 23, 23a of the screws 20 and 20a can, if necessary, be sealed on the bottom of the cavity 18 by the interposition of an elastomer material surrounding the screw head.
  • each screw placed can be sealed, at its head, by a layer of liquid binder based on elastomer 38 which comes s '' spread around of the screw head 23 or 23a (see Figure 2).
  • the connecting bar 26 placed in the direction of the slope of the roof has here a trapezoidal section with a small upper base 27 and a large lower base 28 which is placed on the flat faces 16 of the frustoconical studs 15.
  • the bar 26 which can also have a rectangular or square or other section, is fixed to the rigid concrete support 1 using screws 29 which generally come to be screwed into sleeves blocked in the concrete like the sleeve 21 shown in Figure 2.
  • the screws 29 must pass through the intermediate plate 14 in a sealed manner and one can interpose under the bar 26 between the generally planar part of the intermediate plate 14 and the large base 28 of the bar a seal 30 made of elastomer foam.
  • This elastomer seal ensures at the same time better carrying of the bar on the plate 14 than that produced by the studs 15 which can be wobbly in certain places.
  • each cover profile 34 may have at its end edges curved parts 35a and 36a which hook to the curved edges 34b of the hooks 34a.
  • the cover profile 34 can also be retained by hooks fixed on the top of the bar 26 and folded over one end of the profile 34.
  • the raised edge portions 24a and 24b of these plates slide under the lateral strips 35 and 36 of the cover profile 34 with trough section, being retained in position by the double hooks 32 which can of course be replaced by simple hooks which are, for example, nailed to the inclined lateral faces 26a and 26b of the wooden bar 26.
  • the zinc tanks 24 and 25 oriented in the direction of the greatest slope of the roof are covered by the lateral bands 35 and 36 of the cover profile 34, which provides good protection against rising water under the action of the wind.
  • the installation of zinc trays 24 and 25 thus allows the free expansion of the metal plates in all directions, which is essential because the temperatures of zinc can go from 80 ° C in full summer sunshine to -20 ° C in winter .
  • the zinc tanks 24 and 25 are also placed on the flat heads 16 of the studs 15 which provide a ventilation space 37 of the same height as the projection h of the studs 15 (on the flat part 14a of the intermediate plates 14) between these plates and the metal cover plates (see also ventilation space 37 in Figure 4).
  • the set of intermediate plates constitutes an assembly which is impermeable to the flow of water in the direction of the slope of the roof and which can fulfill the role of sub-roofing recovering the leaks and possible condensations of the metal plates to lead them to taste.
  • the installation method shown in FIG. 5 can be adapted, in certain countries which do not use wood, to the use of entirely metal cleats interposed in interleaves between zinc tanks provided with vertical lateral faces with lateral rim.
  • the metal strip consists of a U-shaped profile also made of zinc and placed by the U-bar (the branches of the U being vertical) on the rigid support 1 where it is fixed by any suitable means such as screws or nails.
  • the projecting legs of the U-profile are covered with a zinc cap which closes the profile and also has edges.
  • the successive superimposed edges of the cap, the U-shaped profile and the vertical face of the adjacent zinc tank are then folded together vertically to seal the simultaneous connection of the tank, the cleat and the hat against water splashes.
  • the U profile of the cleat is fixed to the intermediate plate 14 with interposition in places of a simple seal such as the seal 30 , so as to also have under the metal U-shaped battens a ventilation space 37.
  • the installation of a roof according to the invention on a rigid support such as concrete or a metal structure begins with the installation of intermediate plates 14 which overlap each other at the edges in all directions and are retained on the metal support generally by screws whose bushings are sealed by direct contact with the plastic of the intermediate plate 14 or, if necessary, with the interposition of an elastomeric seal 38 between the screw head and the intermediate plate.
  • the intermediate plates being placed, we then fix intermediate supports 9 or cover profiles 26, 34 depending on the type of metal plate chosen.
  • the support pieces 9 or 26 being in place, we then proceed to the installation of the metal plates which are slid laterally into each other in the direction of the slope of the roof.
  • the metal plates come to rest on the flat heads 16 of the studs 15 while providing ventilation space 37 which prevents condensation from settling below the zinc and initiating corrosion in association with an acidic aqueous phase, the risk of which is reduced because the intermediate plates 14 are made of a chemically neutral plastic material.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
  • Building Environments (AREA)
  • Laminated Bodies (AREA)
  • Tents Or Canopies (AREA)

Claims (10)

1. Auf einen nicht belüfteten Dachträger (1) eines Gebäudedachs ruhender, eine Tragtafel bildender metallischer Dachbelag, bestehend aus korrosionsfesten Metallplatten (2, 3), wie Zinkplatten, die unter Bildung von sich im Sinn der Dachneigung erstreckenden Kanälen oder Rinnen ineinander eingreifen, dadurch gekennzeichnet, dass durchgehende, dichte Zwischenplatten (14) aus weichem, elastischem, elektrisch und chemisch in bezug auf die Metallplatten (2, 3) neutralem Material, wie Kunststoff, unmittelbar an dem tafelförmigen, nicht belüfteten Träger (1) befestigt sind unter Verwendung von die Zwischenplatte (14) dicht durchquerenden Stangen (20, 20a), deren Köpfe (23a) sich an diese Platte (14) anlegen; und dass die Metallplatten (2, 3; 24, 25) an Stützteilen (9, 34) befestigt sind, die auf den Zwischenplatten (14) angeordnet und am Dachträger (1) vermittels die Zwischenplatten (14) dicht durchquerender Stangen bzw. Schrauben (20) befestigt sind, wobei Vorsprünge oder Zwischenteile (15) gleichmässig über die Zwischenplatten (14) verteilt und zwischen den Metallplatten und den Zwischenplatten derart angeordnet sind, dass unter den Metallplatten ein Lüftungsraum (37) gebildet wird und die aus den Zwischenplatten (14) bestehende Baueinheit als ggf. am Hauptdach auftretendes Leck- oder Kondenswasser auffangendes Unterdach dient.
2. Metallischer Dachbelag nach Anspruch 1, dadurch gekennzeichnet, dass die Stützteile (9, 34) der Metallplatten (2, 3; 24, 25) derart an den Zwischenplatten (14) befestigt sind, dass sie sich an den Vorsprüngen bzw. Zwischenteilen (15) abstützen, um unter diesen Stützteilen (9, 34) einen Lüftungsraum (37) zu bilden.
3. Metallischer Dachbelag nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Stützteile (26, 24) der Metallplatten derart an den Zwischenplatten (14) befestigt sind, dass sie sich an den Vorsprüngen bzw. Zwischenteilen (15) über zumindest stellenweise zwischen dem Stützteil (26) und der Zwischenplatte (14) angeordnete Dichtungs- bzw. Tragelemente, wie Dichtungen (30) aus gummielastischem Kunststoffschaum abstützen.
4. Metallischer Dachbelag nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Vorsprünge bzw. Zwischenteile (15) mit der Zwischenplatte (14) einstückig ausgebildet sind.
5. Metallischer Dachbelag nach Anspruch 4, dadurch gekennzeichnet, dass die mit der Zwischenplatte (14) einstückig ausgebildeten Vorsprünge bzw. Zwischenteile (15) durch je einen wesentlich flachen Kopf (16) aufweisende Hohlkegelstümpfe (15) gebildet werden, die als gleichmässig verteilte Vorsprünge an einer Oberfläche einer dünnwandigen, ebenen Kunststoffplatte (14a) angeordnet sind.
6. Metallischer Dachbelag nach Anspruch 5, dadurch gekennzeichnet, dass die Stützteile als Winkelprofilstücke ausgebildet sind, bei denen einer ihrer Flansche (17) auf die flachen Köpfe (16) mehrerer einander benachbarter Kegelstümpfe (15) auflegbar ist und kegelstumpfförmige Ausnehmungen (18) aufweist, deren kleine Basis (19) auf den anderen Flansch (10) des Trag- oder Stützteils (9) ausgerichtet ist, der mit den Metallplatten (2, 3) zusammenwirkt; und dass die kegelstumpfförmigen Ausnehmungen (18) eine Vorsprunghöhe besitzen, die der Vorsprunghöhe (h) der Kegelstümpfe der Zwischenplatte (14) wesentlich gleich ist, derart, dass der betreffende Flansch (17) gleichzeitig einerseits auf den flachen Köpfen (16) der Kegelstümpfe der Zwischenplatte und andererseits mit dem Boden (19) der kegelstumpfförmigen Ausnehmungen unmittelbar auf die Zwischenplatte (14) auflegbar ist.
7. Metallischer Dachbelag nach Anspruch 6, dadurch gekennzeichnet, dass die kleine Basis (19) der kegelstumpfförmigen Ausnehmungen (18) des betreffenden Flansches (17) des Stützteils (9) eine Bohrung (19a) aufweist, in welche eine Schraube bzw. Stange (20) zur Befestigung des Stützteils (9) an dem nicht belüfteten Dachträger (1) einführbar ist.
8. Metallischer Dachbelag nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass die die Zwischenplatten (14) durchquerenden Stangen bzw. Schrauben (20, 20a) wesentlich dicht in den Platten angeordnet sind, lediglich dank des engen Kontakts zwischen dem Umfang dieser Stangen bzw. Schrauben und der Innenwandung einer in diesen Platten vorgesehenen Bohrung, wobei das die letzteren bildende Material erheblich elastischer ist, als das die Stangen bzw. Schrauben bildende Metall.
9. Träger für einen metallischen Dachbelag nach einem der Ansprüche 1 bis 8, welcher Träger einen Winkeleisenquerschnitt besitzt und mit einem seiner Flansche an einer Aufnahmefläche befestigbar ist, dadurch gekennzeichnet, dass dieser Befestigungsflansch (17) kegelstumpfförmige Ausnehmungen (18) aufweist, deren kleine Basis (19) nach der dem anderen Flansch (10) entgegengesetzten Seite weist, und dass der wesentlich flache Boden der kleinen Basis (19) eine Stütz- und Befestigungsfläche zwecks Anbringung an der Aufnahmefläche (14a) bildet.
10. Träger nach Anspruch 9, dadurch gekennzeichnet, dass die kleine Basis (19) der Kegelstümpfe eine Bohrung (19a) zur Aufnahme eines Mittels (20) zur Befestigung an der Aufnahmefläche (14a) aufweist.
EP90401296A 1989-07-26 1990-05-16 Metalldacheindeckung und Auflagen für solche Eindeckung Expired - Lifetime EP0410822B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90401296T ATE74989T1 (de) 1989-07-26 1990-05-16 Metalldacheindeckung und auflagen fuer solche eindeckung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8910071 1989-07-26
FR8910071A FR2650319B1 (fr) 1989-07-26 1989-07-26 Couverture metallique pour toiture et supports pour une telle couverture

Publications (2)

Publication Number Publication Date
EP0410822A1 EP0410822A1 (de) 1991-01-30
EP0410822B1 true EP0410822B1 (de) 1992-04-15

Family

ID=9384160

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90401296A Expired - Lifetime EP0410822B1 (de) 1989-07-26 1990-05-16 Metalldacheindeckung und Auflagen für solche Eindeckung

Country Status (9)

Country Link
US (1) US4977721A (de)
EP (1) EP0410822B1 (de)
JP (1) JPH0359254A (de)
AT (1) ATE74989T1 (de)
DE (1) DE69000072D1 (de)
DK (1) DK0410822T3 (de)
ES (1) ES2031018T3 (de)
FR (1) FR2650319B1 (de)
GR (1) GR3004373T3 (de)

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Also Published As

Publication number Publication date
FR2650319A1 (fr) 1991-02-01
ATE74989T1 (de) 1992-05-15
JPH0359254A (ja) 1991-03-14
GR3004373T3 (de) 1993-03-31
US4977721A (en) 1990-12-18
DK0410822T3 (da) 1992-08-17
FR2650319B1 (fr) 1991-11-08
DE69000072D1 (de) 1992-05-21
ES2031018T3 (es) 1992-11-16
EP0410822A1 (de) 1991-01-30

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