EP0442805B1 - Wasserdichte Deckung auf einem Gerüst befestigt - Google Patents

Wasserdichte Deckung auf einem Gerüst befestigt Download PDF

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Publication number
EP0442805B1
EP0442805B1 EP91400350A EP91400350A EP0442805B1 EP 0442805 B1 EP0442805 B1 EP 0442805B1 EP 91400350 A EP91400350 A EP 91400350A EP 91400350 A EP91400350 A EP 91400350A EP 0442805 B1 EP0442805 B1 EP 0442805B1
Authority
EP
European Patent Office
Prior art keywords
frame
fixing member
layer
covering according
flexible 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
EP91400350A
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English (en)
French (fr)
Other versions
EP0442805A1 (de
Inventor
Francis Ovaert
Henri Desgouilles
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.)
Axter SA
Original Assignee
Axter SA
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Filing date
Publication date
Application filed by Axter SA filed Critical Axter SA
Priority to AT91400350T priority Critical patent/ATE98319T1/de
Publication of EP0442805A1 publication Critical patent/EP0442805A1/de
Application granted granted Critical
Publication of EP0442805B1 publication Critical patent/EP0442805B1/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
    • E04D5/00—Roof covering by making use of flexible material, e.g. supplied in roll form
    • E04D5/14—Fastening means therefor
    • E04D5/144—Mechanical fastening means
    • E04D5/145—Discrete fastening means, e.g. discs or clips
    • 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
    • E04D3/3601—Connecting; Fastening of roof covering supported by the roof structure with interposition of a insulating layer
    • E04D3/3603—Connecting; Fastening of roof covering supported by the roof structure with interposition of a insulating layer the fastening means being screws or nails
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D5/00—Roof covering by making use of flexible material, e.g. supplied in roll form
    • E04D5/14—Fastening means therefor
    • E04D5/141—Fastening means therefor characterised by the location of the fastening means
    • E04D5/143—Fastening means therefor characterised by the location of the fastening means in the field of the flexible material
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D5/00—Roof covering by making use of flexible material, e.g. supplied in roll form
    • E04D5/14—Fastening means therefor
    • E04D5/144—Mechanical fastening means
    • E04D5/147—Mechanical fastening means not perforating the flexible material

Definitions

  • the present invention relates to insulating and waterproof covers and very particularly to industrial building covers.
  • These covers fixed on a frame include thermal insulation between the load-bearing element and the waterproofing coating. This insulation is mainly achieved by plates or panels placed contiguously. The joining of these plates with the carrier element is carried out by mechanical fixing when the support is made of ribbed steel sheets.
  • a mechanical fastening consists of a screw, or a rivet or a stud, made integral with the ribbed steel sheet by drilling or welding.
  • the head of the screw, rivet, stud includes a washer of small dimensions, with a diameter of the order of 50 to 70 mm.
  • the waterproofing coating is made integral with the insulation plates by gluing or by welding using a hot source, most often by a flame or air torch, over the entire surface of the insulating panels and or right of the washers of the mechanical fixings; these can be improved for welding by a suitable surface coating or by a washer of the same material as the sealing coating, and of larger dimensions, interposed between the metal washer and the underlying insulating panel.
  • a more recent technique provides for the dry unwinding on the insulating panels of a first bed of sheets constituting the lower part of the waterproofing coating; the mechanical fixings then pass through the bed of sheets and the insulating panels.
  • a preliminary heat shield can be used on the insulation.
  • the upper part of the waterproof coating is then glued or welded to the lower part with its visible washers.
  • Another technique provides for mechanical fastenings to the right of the covering joints of the strips of the waterproofing coating.
  • the covered part is glued or welded, on the one hand on the edge of the adjacent strip and, on the other hand, on the small washers of the fixings.
  • the wind creates significant compression and depression forces, in places, on the roof (swirls, mask effect behind a wall or an emergence of the roof).
  • the forces are exerted on the exterior surface, therefore on the waterproofing coating, which ultimately stresses the load-bearing element and the structure of the building.
  • At least one sheet of the sealing coating is pierced by the mechanical fixing.
  • the rupture is located at the level of the bonding plane of the sealing coating on the washer, or by unbuttoning the fixing head through the washer, or by tearing off the fixing through the ribbed steel sheet.
  • the breaking values are relatively homogeneous, of the order of 900 to 1300 N.
  • the object of the present invention is to provide a cover whose implementation is simpler and faster than that of conventional openings and whose wind resistance is also improved.
  • a waterproof cover in particular for an industrial building, comprising a load-bearing element adapted to be fixed to a structural element of the building, a layer of insulating material placed on the the carrier element and a sealing coating covering the layer of insulating material, connecting means being provided to keep these three components assembled, characterized in that the connecting means comprise a first fixing member fixing the support element to the frame and comprising above it an extension of length substantially equal to the thickness of the insulating layer, and a flexible plate and a second fixing member bearing on this flexible plate by means of an enlarged head and / or a rigid washer and coming to be fixed on said extension, the dimension, in a direction perpendicular to said extension, of the head or of the rigid washer being intermediate between the maximum dimension, in said direction, of the first or second member in the vicinity of the external surface of the layer of insulating material, and the dimension, in said direction, of the flexible plate, and in that the sealing coating is fixed only on the flexible plates and on
  • the sealing coating which will be fixed on the flexible plates will be made integral with the frame: moreover, the invention also makes it possible to secure the load-bearing element with the frame, so that all the efforts of depression suffered by the cover will be transferred to the structural element, purlin or beam.
  • This high-performance device makes it possible to use a maximum of one fixing per m2 of coverage (or even one for 2 m2), thus dividing by more than 5, compared with the conventional techniques previously described, the total number of fastenings.
  • the aforementioned screw can be a self-tapping screw.
  • the aforementioned screw is engaged in a metal insert of the frame element.
  • DE-A-28 38 566 describes a waterproof cover in accordance with the preamble of claim 1, with a wooden deck interposed between the insulating layer and the waterproofing coating.
  • a frame element consisting of a steel beam 1 constituting a breakdown of a frame: a load-bearing element 2 constituted by a ribbed steel sheet is placed transversely on the purlins 1.
  • An insulating layer 3 constituted, for example, by plates of insulating material, is placed on the carrier element 2; the cover or roof is completed by a sealing coating 10 which is placed on the outer face of the insulating layer 3.
  • the fixing device comprises a first fixed member comprising a screw 4 which is fixed to the purlin 1 with the interposition of the support element 2, which is thus thus secured to the frame.
  • This first member serves first of all to fix the carrier element 2 on the frame failure 1; it also constitutes a constitutive element of the means of connection of the three constituents of the cover, namely the carrier element 2, the insulating layer 3 and the sealing coating 10.
  • the screw 4 is a self-tapping screw. In the case of a concrete frame, this screw engages in a metal insert of the frame element.
  • the head 5 of the screw 4 has an extension aligned with the barrel of the screw and disposed on the other side of the head 5.
  • this extension consists of a hollow cylindrical intermediate piece 6 internally threaded, open at its free end and the bottom 20 of which is fixed to the carrier element by means of the screw 4.
  • the extension consists of a threaded rod 7.
  • the length of the cylinder 6 or of the rod 7 is substantially equal to the sum of the thicknesses of the insulating layer 3 and of the carrier element.
  • a second member comprising a part constituting a rigid washer comes to join with the first aforementioned member.
  • it is a screw 8 which engages in the cylinder 6, which has a flat countersunk head and on which is engaged a rigid washer 9 of diameter a .
  • the second member is constituted by a kind of plug 11 which has a tubular part 12 internally threaded which cooperates with the rod 7 and which is surmounted by a rigid flat head 13 constituting a washer support similar to the rigid washer 9.
  • the fixing device finally comprises a flexible plate 21 which is interposed between the washer rigid 9 or the rigid flat head 13 and the insulating panels 3.
  • This plate 21 is preferably circular with diameter D and large dimensions.
  • This flexible plate is, for example, made of thin metal and may include a surface coating compatible with the material constituting the sealing coating. It is also possible to use a material comprising a woven or nonwoven reinforcement, made of glass, polyester, organic material or a mixture of these components; in this case, the plate is coated with a material identical or compatible with that of the sealing coating.
  • the aforementioned plate can be made previously integral with the washer 9 or with the rigid head 13 by gluing or welding.
  • FIG. 1 comprising a first member constituted by a screw
  • the rigid washer 9 or the flat head 13 may have a diameter a of the order of 80 mm.
  • the flexible plate 21 must have a mechanical tensile strength corresponding to the relationship R t ⁇ a> 5000 N and preferably of the order of 8000 N, the mechanical tensile strength R t being expressed in Newtons per cm of width and measured according to standard NF G07-001. It must also have a tear resistance Rd (measured according to the UEATC method 5.4.1., July 1982) which is at least equal to 200 N and preferably of the order of 400 N.
  • the diameter d of cylindrical part 6, in the embodiment of Figure 1, or the second member 11, in the embodiment of Figure 2, in the vicinity of the outer surface of the layer 3 of insulating material should not be less than 6 mm and preferably of the order of 10 mm.
  • the difference between the diameter D of the plate 21 and the diameter a of the rigid washer or of the flat head 13 must be at least equal to 100 mm and preferably of the order of 170 mm.
  • the diameter of the washer or rigid head a and the diameter d of the fastening element are chosen such that the difference (ad) is approximately equal to 90 mm and in any case greater than 70 mm. This prevents the flexible plate 21 from “escaping" the rigid part 8 or 13 by sliding, tearing or unbuttoning.
  • Figure 3 is a sectional view perpendicular to Figure 2 and shows the method of fixing the carrier element 2 on the purlin 1.
  • the rod 7 is secured to the head of the self-tapping screw 4, which is fixed in a hollow in the ribbed sheet 2 on the purlin 1 with interruption of a washer 14.
  • the fixing device according to the invention comprises at least one thermally insulating element to avoid the formation of thermal bridges.
  • FIGS 4 and 5 show an alternative embodiment of the invention. This is intended in particular in the case of bank failures 41 which are directly adjacent to an acroterion 42.
  • the axis of the fixing point of the sealing coating is offset relative to the axis of fixing of the carrier element on the purlin.
  • the first member is constituted by two screws 51 and 52 arranged symmetrically with respect to the axis of the purlin 41, which constitutes the axis of attachment of the ribbed sheet 44 on the purlin 1.
  • This base preferably has, in cross section ( Figure 5) the shape of a U.
  • This base 43 carries at one of its ends a hollow cylindrical part 45 similar to the cylindrical part 6 of FIG. 1.
  • the axis of the hollow part is offset relative to the axis of the purlin 41. It is obviously possible to provide a similar arrangement in which the base 43 supports a rod similar to the rod 7 of FIG. 2.
  • the load-bearing element (ribbed sheet) is fixed to the beams or purlins of the frame by means of the fixed members 4; the insulating layer panels are put in place by "impaling" them on the extensions 6 and 7 respectively of these first members; the flexible plates are put in place in the event that they are not secured to the rigid washers, and then the second members 8, 11 are fixed to the first members so as to secure the latter with the carrier element and the purlin or beam.
  • the sealing coating is then put in place and it is fixed by welding or gluing on the flexible plate and the rigid washer of the devices according to the invention.
  • the various mechanical elements are dimensioned so as to have a pull-out resistance of the order of 5000 N; in this way, a homogeneous assembly is obtained which has a tear resistance of 5000 N and all the forces resulting from a depression undergone by the waterproofing coating are transmitted directly to the frame by the fixing members.
  • the sealing coating follows the movements of the flexible plate and therefore cannot be torn off at the periphery of the rigid washer.
  • rock wool having a density lower than 120 kg / m3 and preferably equal to 100 kg / m3 instead of the rock wool of 150 kg / m3 currently used.
  • Glass wool with a density less than 90 kg / m3 can also be used in place of glass wool with a density of 110 kg / m3.

Landscapes

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

Claims (10)

  1. Dichte Abdeckung, insbesondere für Industriebauten, mit einem Trägerelement (2; 44), das an einem Gebälkelement (1; 41) des Gebäudes befestigbar ist, einer auf dem Trägerelement angeordneten Isoliermaterialschicht (3; 46) und einer die Isoliermaterialschicht abdeckenden Dichtverkleidung (10), wobei Verbindungseinrichtungen zum Zusammenhalten der drei Bestandteile vorgesehen sind, dadurch gekennzeichnet, daß die Verbindungseinrichtungen aufweisen:
    - ein erstes Befestigungsorgan (4, 6; 4; 43, 45, 51, 52), das zur Befestigung des Trägerelements (2; 44) an dem Gebälk (1; 41) dient und über diesem eine Verlängerung aufweist, deren Länge im wesentlichen gleich der Dicke der Isolierschicht (3; 46) ist; und
    - eine biegsame Platte (21) und ein zweites Befestigungsorgan (8, 9; 11), das über einen verbreiterten Kopf (13) und/oder eine starre Scheibe (9) an der biegsamen Scheibe abgestützt ist und an der Verlängerung fixierbar ist, wobei die rechtwinklig zur Verlängerung verlaufende Abmessung (a) des verbreiterten Kopfes oder der starren Scheibe zwischen der in dieser Richtung verlaufenden maximalen Abmessung (d) des ersten (6; 45) oder des zweiten Organs (11) in der Nähe der Außenfläche der Isoliermaterialschicht (3; 46) und der Abmessung (D) der biegsamen Platte (21) in dieser Richtung liegt;
    - und daß die Dichtverkleidung (10) ausschließlich auf den biegsamen Platten (21) und auf den verbreiterten Köpfen oder auf den starren Scheiben befestigt ist.
  2. Abdeckung nach Anspruch 1, dadurch gekennzeichnet, daß das erste Befestigungsorgan (4, 6; 4; 43, 45, 51, 52) eine in das Gebälkelement (1; 41) eingeschraubte Schraube (4; 51. 52) und ein hohlzylindrisches Zwischenstück (6; 45) aufweist, dessen Boden (20; 43) an dem Trägerelement (2; 44) mittels der Schraube befestigt ist.
  3. Abdeckung nach Anspruch 1, dadurch gekennzeichnet, daß das erste Befestigungsorgan eine in das Gebälkelement (1) eingeschraubte Schraube (4) ist, wobei der Kopf (5) der Schraube (4) nach oben durch eine Stange (7) verlängert ist.
  4. Abdeckung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Achse der Verlängerung (45) gegenüber dem Befestigungspunkt des Trägerelements (44) an dem Gebälk (41) versetzt ist.
  5. Abdeckung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß, wenn a den Durchmesser des verbreiterten Kopfes (13) oder der starren Scheibe (9), d den Durchmesser des ersten (6; 45) oder des zweiten Befestigungsorgans (11) in der Nähe der Außenfläche der Isoliermaterialschicht (3; 46), D den Durchmesser der biegsamen Platte (21) und Rt die mechanische Zugfestigkeit der biegsamen Platte bezeichnet, die folgenden Bedingungen gelten: Rtπa > 5000 N
    Figure imgb0004
     a - d > 70 mm
    Figure imgb0005
     D - a > 100 mm.
    Figure imgb0006
  6. Abdeckung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die biegsame Platte (21) eine Reißfestigkeit Rd aufweist, die größer oder gleich 200 N ist, und daß der Durchmesser d des ersten (6; 45) oder des zweiten Befestigungsorgans (11) in der Nähe der Außenfläche der Isoliermaterialschicht (3; 46) wenigstens gleich 6 mm ist.
  7. Abdeckung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Befestigung des zweiten Befestigungsorgans an dem ersten Befestigungsorgan durch Verschrauben, durch Klemmen oder Bajonettbefestigung erfolgt.
  8. Abdeckung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die biegsame Platte (21) mit der starren Scheibe (9) verbunden ist.
  9. Abdeckung nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß die biegsame Platte (21) zwischen zwei starren Scheiben eingesetzt ist.
  10. Abdeckung nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß die Isoliermaterialschicht (3; 46) aus Mineralwolle, die eine Dichte unter 120 kg/m³ aufweist, oder aus einer Glaswolle besteht, die eine Dichte unter 90 kg/m³ aufweist.
EP91400350A 1990-02-14 1991-02-12 Wasserdichte Deckung auf einem Gerüst befestigt Expired - Lifetime EP0442805B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT91400350T ATE98319T1 (de) 1990-02-14 1991-02-12 Wasserdichte deckung auf einem geruest befestigt.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9001755 1990-02-14
FR9001755A FR2658223A1 (fr) 1990-02-14 1990-02-14 Couverture etanche fixee sur une charpente.

Publications (2)

Publication Number Publication Date
EP0442805A1 EP0442805A1 (de) 1991-08-21
EP0442805B1 true EP0442805B1 (de) 1993-12-08

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP91400350A Expired - Lifetime EP0442805B1 (de) 1990-02-14 1991-02-12 Wasserdichte Deckung auf einem Gerüst befestigt

Country Status (6)

Country Link
US (1) US5177922A (de)
EP (1) EP0442805B1 (de)
AT (1) ATE98319T1 (de)
DE (1) DE69100728T2 (de)
ES (1) ES2047990T3 (de)
FR (1) FR2658223A1 (de)

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DE19504463A1 (de) * 1995-02-10 1996-08-14 Hilti Ag Befestigungselement für Isolationsmaterialien
DE19504984A1 (de) * 1995-02-15 1996-08-22 Hilti Ag Befestigungselement für Isolationsmaterialien
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US9637926B2 (en) 2008-04-10 2017-05-02 Velcro BVBA Membrane roofing
CA2763058C (en) * 2012-01-05 2014-10-14 Cascadia Windows Ltd. Thermally insulative spacer and methods involving use of same
US8905697B2 (en) * 2012-04-23 2014-12-09 Illinois Tool Works Inc. Thermal break fastener
JP6303343B2 (ja) * 2013-09-04 2018-04-04 アーキヤマデ株式会社 防水シート固定構造
JP6420564B2 (ja) * 2014-04-16 2018-11-07 アーキヤマデ株式会社 防水下地パネルの設置構造及びその設置方法
JP6707343B2 (ja) * 2015-12-21 2020-06-10 ロンシール工業株式会社 防水シートの固定構造および固定方法
US10934716B2 (en) 2018-09-17 2021-03-02 Velcro Ip Holdings Llc Construction underpayment
US11536308B2 (en) 2018-12-03 2022-12-27 Arrowhead Design and Innovation, LLC Adjustable fastener system
EP3786378A1 (de) * 2019-08-29 2021-03-03 Hilti Aktiengesellschaft Befestigungsvorrichtung
US11542702B2 (en) 2020-06-25 2023-01-03 Advanced Architectural Products, Llc Adjustable support system for a building structure and a wall structure having an adjustable support system
US11566421B2 (en) 2020-06-25 2023-01-31 Advanced Architectural Products, Llc Adjustable support system for a building structure and a wall structure having an adjustable support system
USD1017840S1 (en) * 2021-08-25 2024-03-12 Up Way Systems, Lda. Waterproof screw cover

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Also Published As

Publication number Publication date
FR2658223A1 (fr) 1991-08-16
DE69100728T2 (de) 1994-06-09
US5177922A (en) 1993-01-12
ES2047990T3 (es) 1994-03-01
EP0442805A1 (de) 1991-08-21
ATE98319T1 (de) 1993-12-15
DE69100728D1 (de) 1994-01-20

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