EP0338495A2 - Roof or wall covering - Google Patents

Roof or wall covering Download PDF

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Publication number
EP0338495A2
EP0338495A2 EP89106897A EP89106897A EP0338495A2 EP 0338495 A2 EP0338495 A2 EP 0338495A2 EP 89106897 A EP89106897 A EP 89106897A EP 89106897 A EP89106897 A EP 89106897A EP 0338495 A2 EP0338495 A2 EP 0338495A2
Authority
EP
European Patent Office
Prior art keywords
roof
fire
cover according
water
wall cover
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.)
Granted
Application number
EP89106897A
Other languages
German (de)
French (fr)
Other versions
EP0338495B1 (en
EP0338495A3 (en
Inventor
Taieb Marzouki
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.)
ROLAND-WERKE DACHBAUSTOFFE UND BAUCHEMIE GMBH & CO
Original Assignee
Roland-Werke Dachbaustoffe und Bauchemie & Co KG 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 Roland-Werke Dachbaustoffe und Bauchemie & Co KG GmbH filed Critical Roland-Werke Dachbaustoffe und Bauchemie & Co KG GmbH
Priority to AT89106897T priority Critical patent/ATE101224T1/en
Publication of EP0338495A2 publication Critical patent/EP0338495A2/en
Publication of EP0338495A3 publication Critical patent/EP0338495A3/en
Application granted granted Critical
Publication of EP0338495B1 publication Critical patent/EP0338495B1/en
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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
    • E04D3/35—Roofing slabs or stiff sheets comprising two or more layers, e.g. for insulation
    • E04D3/351—Roofing slabs or stiff sheets comprising two or more layers, e.g. for insulation at least one of the layers being composed of insulating material, e.g. fibre or foam material
    • E04D3/352—Roofing slabs or stiff sheets comprising two or more layers, e.g. for insulation at least one of the layers being composed of insulating material, e.g. fibre or foam material at least one insulating layer being located between non-insulating layers, e.g. double skin slabs or sheets
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C35/00—Permanently-installed equipment
    • A62C35/02—Permanently-installed equipment with containers for delivering the extinguishing substance
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/92—Protection against other undesired influences or dangers
    • E04B1/94—Protection against other undesired influences or dangers against fire
    • 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
    • E04D13/16—Insulating devices or arrangements in so far as the roof covering is concerned, e.g. characterised by the material or composition of the roof insulating material or its integration in the roof structure
    • E04D13/1606—Insulation of the roof covering characterised by its integration in the roof structure
    • E04D13/1643—Insulation of the roof covering characterised by its integration in the roof structure the roof structure being formed by load bearing corrugated sheets, e.g. profiled sheet metal roofs
    • 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
    • E04D3/35—Roofing slabs or stiff sheets comprising two or more layers, e.g. for insulation
    • E04D3/351—Roofing slabs or stiff sheets comprising two or more layers, e.g. for insulation at least one of the layers being composed of insulating material, e.g. fibre or foam material
    • E04D3/354—Roofing slabs or stiff sheets comprising two or more layers, e.g. for insulation at least one of the layers being composed of insulating material, e.g. fibre or foam material more than one of the layers being composed of insulating material
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00—Coverings or linings, e.g. for walls or ceilings
    • E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
    • E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
    • E04F13/12—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements of metal or with an outer layer of metal or enameled metal

Definitions

  • the invention relates to a roof or wall covering for a building or the like. According to the preamble of claim 1.
  • the covers made of profiled steel sheet (trapezoidal sheet) with any insulation materials placed thereon are often used. It has been shown that in the event of a fire, the heat is dissipated from the trapezoidal sheet, which creates the risk that flammable substances ignite above the trapezoidal sheet. In addition, the thermal energy acting on the trapezoidal sheet leads to a gradual reduction in the load-bearing capacity of the trapezoidal sheet. This results in an acute risk of collapse in the event of a fire.
  • the object of the invention is to develop a roof or wall covering of the type mentioned at the outset in such a way that the fire-retardant substance optimally fulfills its intended effect in the event of a fire.
  • Thickened water is expediently used as the fire-retardant liquid, organic substances or a mixture of organic and inorganic substances preferably being used for the thickening. As a result, the thickened liquid can be produced simply and inexpensively.
  • the thickened water is accommodated in enveloping elements arranged in the channels. These reliably ensure that the water can only escape in the event of a fire. If one or more envelope elements melt in the event of a fire, the thickening ensures that the water cannot flow out suddenly through the burnt-out areas and therefore essentially without achieving the intended effect.
  • the enveloping members are expediently designed to be gas-tight. This reliably prevents impairment of the thickened water over time, in particular due to the thickening substance.
  • the embodiment shown in FIG. 1 relates to a roof covering 10 made of several layers.
  • the roof covering 10 is composed (from bottom to top) of a base layer 11, a vapor barrier 12, an insulation layer 13 and three sealing sheets 14, 15 and 16.
  • the base layer 11 is made in the usual way from sheet steel, namely as a trapezoidal sheet 17.
  • the trapezoidal sheet 17 thus has grooves 18 arranged next to one another, which upwards, i.e. towards the vapor barrier 12, are open.
  • the channels 18 are oriented in the direction of parallel to the ridge of the roof, that is to say run approximately horizontally.
  • elongated hollow bodies namely hoses 19, lie in the grooves 18, approximately filling the cross-section thereof.
  • the hoses 19 are shorter than the respective groove 18.
  • a plurality of hoses 19 are arranged one behind the other in each channel 18.
  • the length of the tubes 19 is so ge chooses that these are easy to handle for themselves. From this point of view, it has proven to be expedient to provide the hoses 19 with a length of approximately one meter.
  • Treated, namely thickened, water 21 is used here as the liquid in the tubes 19.
  • the water 21 has a relatively high viscosity, which prevents the water arranged in it from bursting or melting in the event of a fire or in the event of a fire, and the water disposed therein can flow out for a short time and thus almost unused.
  • the thickened water 21 remains almost in the hoses 19, in particular also in the burst or blown hoses 19, where it evaporates.
  • Organic substances are preferably used to thicken the water 21.
  • cellulose ethers or salts of an acrylic acid polymer or copolymer are particularly suitable. These already lead to low very high concentration, i.e. when using small amounts, to an extensive thickening of the water 21. Above all, when using these substances, it is also ensured that the water 21 retains its thickened state even after years, without any rotting or Like. In order to exclude with certainty a risk of rotting, a preservative can be added to the water in addition to the thickening agent.
  • Possible preservatives are: methyl p-hydroxybenzoate, isothiazolynone, p-hydroxybenzoic acid ethyl ester (trade name Solbrol A from Bayer AG), p-hydroxybenzoic acid methyl ester (trade name Solbrol M from Bayer AG), p-hydroxybenzoic acid propyl ester (trade name Solbrol P from Bayer AG), Benzoic acid, sodium benzoate, sorbic acid or potassium sorbate. Because of their toxicological harmlessness, these substances are particularly suitable as preservatives.
  • the thickening of the water 21 arises from the fact that the latter is first mixed with 0.05 to 1% by weight, in particular 0.25% by weight, of acrylic acid, without any significant value Thickening of the water occurs. Only after adding an equivalent amount of a neutralizing agent, for example a 10% sodium hydroxide solution, to the water 21 and the polyacrylic acid already dissolved in this water 21 does the solution suddenly thicken, resulting in a high-viscosity composition.
  • a neutralizing agent for example a 10% sodium hydroxide solution
  • sodium hydroxide solution another alkali can also be used as the neutralizing agent.
  • low molecular weight amines or ammonium hydroxides as neutralizing agents.
  • the preservative which can be the substances mentioned above, is added to the water 21 before the neutralization of the polyacrylic acid, ie even before the thickening occurs.
  • the following example is intended to illustrate the relationship between the water 21 and the thickener and the preservative when using polyacrylic acid as the starting substance.
  • the following mixing ratio is used:
  • the thickening of the water with the aid of cellulose ether can take place with 1-5% by weight, in particular 3% by weight, of methyl cellulose.
  • the following mixing ratio then results:
  • the two mixtures mentioned above can also contain additives, namely texturing agents, for example silica, but also in addition to the additives or, alternatively, inorganic fillers.
  • the hoses 19 used to hold the thickened water 21 are made of a thermoplastic plastic laminate. It preferably consists of two layers, namely an (inner) ethylene vinyl acetate copolymer layer and an (outer) polyethylene layer. Both layers are connected to one another during manufacture.
  • This configuration of the laminate in particular the internal arrangement of the ethylene vinyl acetate copolymer layer, ensures particularly good weldability of the tube 19, since the (inner) ethylene vinyl acetate copolymer layers facing one another can be welded directly to one another in order to form the fin seams 22, which layers compared to polyethylene the outer layer has better welding properties, especially a low melting temperature.
  • the polyethylene outer layer ensures that the hoses 19 are gas-tight even over a long period of time, thereby reliably preventing volatilization or decomposition of the thickened water 21 arranged therein.
  • the outer polyethylene layers of the laminate are thicker than the (inner) ethylene vinyl acetate copolymer layers.
  • the tubes 19 are formed in that an endless, preferably cylindrical tube strand with a wall thickness of about 0.4 mm is opposite to one another
  • the end of the open tube section is cut to the appropriate length and an end face is first welded closed, preferably by a seal weld, whereby a fin seam 22 is formed on one side.
  • the already thickened water 21 is then filled through the then still open end face of the tube prepared so far. Thereafter, the second end face left open for filling in the thickened water is likewise closed by a seal weld, so that a fin seam 22 is also formed here.
  • Due to the method of manufacture described above, a hose 19 according to FIGS. 3 and 4 results. This closes the thickened water contained therein hermetically airtight, so that it is effectively protected from external influences over a longer period of time, in particular from evaporation or decomposition.
  • a three-layer laminate composed of an (inner) polyethylene layer, an intermediate aluminum layer and an (outer) polyester layer can also be used for the hose 19.
  • the aluminum layer can be formed by one-sided, internal vapor deposition of either the polyethylene or the polyester layer.
  • the welding of the tube 19 to form the fin seams 22 takes place here on the mutually directed (inner) polyethylene layers, which have a lower melting temperature than the (outer) polyester layers, so that a perfect welding without appreciable impairment of the outer, higher-melting polyester Layer is possible.
  • FIG. 5 and 6 show an alternative to the hose 19, namely an envelope body designed as a cushion 23 for the thickened water 21.
  • This cushion 23 is formed from two elongated blanks 24 and 25 arranged in two layers. These are first welded to opposite longitudinal edges 26 , so here two parallel ones Longitudinal seams 27 arise. Then one of the two open end faces is pre-closed by a further weld seam, namely again a fin seam 28. The thickened water 21 is then filled into the cushion 23 through the second end face, which is then still open, and this is then completely closed by forming the second fin seam 28.
  • the material for the cushion 23 is either a two-layer thermoplastic laminate from the materials described in connection with the hose 19 or a three-layer laminate with an aluminum intermediate layer.
  • FIG. 7 shows an upright wall cover 29.
  • a (central) foam layer 30 and the cushions 23 shown in FIGS. 5 and 6 are arranged between two base layers 11, namely trapezoidal sheets 17 with horizontally running channels 18.
  • the wall cover 29 thus has a sandwich-like structure.
  • the roof cover 10 shown in FIGS. 1 and 2 and the wall cover 29 shown in FIG. 7 each have hoses 19 or cushions 23 arranged one behind the other in the grooves 18 of the trapezoidal sheets 17.
  • hoses 19 or cushions 23 arranged one behind the other in the grooves 18 of the trapezoidal sheets 17.
  • thinner hoses 19 or pillows 23 with smaller cross-sectional dimensions also next to one another or in several layers one above the other in the channels 18.
  • hoses 19 or pillows 23 with non-thickened water and thickened water 21 are alternately arranged in the channels 18.
  • the pillows 23 or hoses 19 with thickened water 21 then form the channels 18 in a liquid-tight manner closing barriers to prevent the unthickened water from flowing out after the cushions 23 or hoses 19 receiving or bursting have burnt or burned through.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Public Health (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Building Environments (AREA)
  • Laminated Bodies (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)

Abstract

To create a roof or wall covering with fire-retardant properties, it is already known to fill channels (18) of a base layer (11), formed from trapezoidal sheet steel, of the roof covering (10) with water. It has been shown, however, that in the event of a fire leakages, leading to the discharge of the water within a short time, occur rapidly in the base layer (11), and consequently the water can no longer evaporate in order to fulfil the intended fire-protection purpose of dissipating the heat produced by the fire. In the invention, this disadvantage is eliminated. <??>According to the invention, a thickened fire-retardant liquid is arranged in the channels (18) of the base layer (11). As a result of this thickening, the liquid is unable to escape, or can escape only very slowly, from leaks in the base layer (11) in the event of a fire, thereby guaranteeing evaporation of the fire-retardant liquid for dissipating the heat energy produced in the fire. <??>The invention is suitable in particular for buildings with a flat roof covering. <IMAGE>

Description

Die Erfindung betrifft eine Dach- oder Wandabdeckung für ein Gebäude oder dgl. gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a roof or wall covering for a building or the like. According to the preamble of claim 1.

Die hier angesprochenen Abdeckungen aus Stahlprofilblech (Trapezblech) mit ggf. darauf angeordneten Dämmstoffen finden vielfach Verwendung. Dabei hat sich gezeigt, daß im Brandfalle vom Trapezblech die Wärme nach oben abgeführt wird, wobei die Gefahr entsteht, daß brennbare Stoffe oberhalb des Trapezblechs sich entzünden. Außerdem führt die auf das Trapezblech einwirkende Wärmeenergie zur all­mählichen Verringerung der Tragfähigkeit des Trapezble­ches. Hieraus resultiert im Brandfalle eine akute Ein­sturzgefahr.The covers made of profiled steel sheet (trapezoidal sheet) with any insulation materials placed thereon are often used. It has been shown that in the event of a fire, the heat is dissipated from the trapezoidal sheet, which creates the risk that flammable substances ignite above the trapezoidal sheet. In addition, the thermal energy acting on the trapezoidal sheet leads to a gradual reduction in the load-bearing capacity of the trapezoidal sheet. This results in an acute risk of collapse in the event of a fire.

Damit im Brandfalle die Stabilität des Trapezbleches er­halten bleibt, ist es bekannt, unter das Trapezblech eine aus Spezialplatten zusammengesetzte Feuerschutzschicht zu hängen. Diese Lösung ist jedoch aufwendig und somit teuer. Darüber hinaus wird durch die Feuerschutzschicht die Hit­zestrahlung vom Trapezblech lediglich abgeschirmt, nicht aber abgebaut, woraufhin sich ein Hitzestau im brennenden Raum bildet, der eine Intensivierung des Brandes bewirken kann. Schließlich können die Spezialplatten der Feuer­schutzschicht Gase freisetzen, die nachteilige Folgen in mehrfacher Hinsicht haben, beispielsweise Löscharbeiten erschweren.In order to maintain the stability of the trapezoidal sheet in the event of a fire, it is known to hang a fire protection layer composed of special panels under the trapezoidal sheet. However, this solution is complex and therefore expensive. In addition, the fire protection layer only shields the heat radiation from the trapezoidal sheet, but does not reduce it, whereupon heat builds up in the burning room, which can intensify the fire. Finally, the special plates of the fire protection layer can release gases that have negative consequences in several respects, for example making fire-fighting work more difficult.

Um diese Nachteile zu beseitigen, ist es aus der DE-OS 36 15 116 bereits bekannt, in den Rinnen des Trapezbleches mit Wasser gefüllte Behälter oder dgl. anzuordnen. Dies hat jedoch den Nachteil, daß beim Durchbrennen der in den Rinnen angeordneten Behälter im Brandfalle hieraus Wasser oder dgl. austritt und wirkungslos abfließen kann, sofern die aus den einzelnen (streifenförmigen) Trapezblechen zu­sammengesetzte Tragschicht nicht in aufwendiger Weise was­serdicht ausgebildet ist. Aber selbst bei wasserdicht aus­gebildeten Tragschichten läuft, inbesondere bei geneigten Abdeckungen, das Wasser aus der durchgebrannten Stelle im Behälter (seitlich) ab. Dadurch kann das Wasser in außer­halb des Brandherdes liegende Regionen gelangen, in denen es so gut wie wirkungslos ist.In order to eliminate these disadvantages, it is already known from DE-OS 36 15 116 to arrange containers filled with water or the like in the channels of the trapezoidal sheet. However, this has the disadvantage that when the containers arranged in the gutters burn through, water or the like escapes from them in the event of a fire and can flow off ineffectively, provided that the base layer composed of the individual (strip-shaped) trapezoidal sheets is not designed to be watertight in a complex manner. But even in the case of watertight base layers, especially in the case of inclined covers, the water runs off from the burnt-out point in the container (to the side). This allows the water to reach regions outside the source of the fire where it is practically ineffective.

Hiervon ausgehend, liegt der Erfindung die Aufgabe zugrun­de, eine Dach- oder Wandabdeckung der eingangs genannten Art so weiterzubilden, daß die brandhemmende Substanz im Brandfalle ihre vorgesehene Wirkung möglichst optimal er­füllt.Proceeding from this, the object of the invention is to develop a roof or wall covering of the type mentioned at the outset in such a way that the fire-retardant substance optimally fulfills its intended effect in the event of a fire.

Diese Aufgabe wird gelöst durch eine Dach- oder Wandab­deckung mit den Merkmalen des Anspruchs 1. Durch das Ein­dicken der in den Rinnen angeordneten Flüssigkeit wird er­ reicht, daß diese nicht oder nur unwesentlich vom Brand­herd wegfließen kann.This object is achieved by a roof or wall cover with the features of claim 1. By thickening the liquid arranged in the channels, it becomes is enough that this can not flow away or only insignificantly from the source of the fire.

Zweckmäßigerweise wird als brandhemmende Flüssigkeit ein­gedicktes Wasser verwendet, wobei zum Eindicken vorzugs­weise organische Substanzen oder ein Gemisch aus organi­schen und anorganischen Substanzen verwendet werden. Hier­durch läßt sich die eingedickte Flüssigkeit einfach und kostengünstig herstellen.Thickened water is expediently used as the fire-retardant liquid, organic substances or a mixture of organic and inorganic substances preferably being used for the thickening. As a result, the thickened liquid can be produced simply and inexpensively.

Gemäß einer besonders vorteilhaften Ausbildung der erfin­dungsgemäßen Dach- oder Wandabdeckung ist das eingedickte Wasser in in den Rinnen angeordneten Hüllorganen unterge­bracht. Diese stellen zuverlässig sicher, daß das Wasser nur im Brandfalle austreten kann. Wenn bei einem Brand ein oder mehrere Hüllorgane aufschmelzen, wird durch die Ein­dickung gewährleistet, daß durch die durchgebrannten Stel­len das Wasser nicht schlagartig und dadurch im wesentli­chen ohne Erzielung der beabsichtigten Wirkung abfließen kann. Zweckmäßigerweise sind die Hüllorgane gasdicht aus­gebildet. Im Laufe der Zeit entstehende Beeinträchtigungen des eingedickten Wassers, insbesondere durch die Eindik­kungssubstanz, werden dadurch zuverlässig vermieden.According to a particularly advantageous embodiment of the roof or wall covering according to the invention, the thickened water is accommodated in enveloping elements arranged in the channels. These reliably ensure that the water can only escape in the event of a fire. If one or more envelope elements melt in the event of a fire, the thickening ensures that the water cannot flow out suddenly through the burnt-out areas and therefore essentially without achieving the intended effect. The enveloping members are expediently designed to be gas-tight. This reliably prevents impairment of the thickened water over time, in particular due to the thickening substance.

Weitere Unteransprüche beziehen sich auf die konstruktive Ausbildung der Hüllorgane.Further subclaims relate to the constructive design of the enveloping elements.

Bevorzugte Ausführungsformen der Erfindung werden nachste­hend anhand der Zeichnung näher erläutert. In dieser zei­gen:

  • Fig. 1 eine Dachabdeckung mit einer als Trapezblech aus­gebildeten Tragschicht mit weiteren darüberlie­genden Schichten in aufgeschnittener, perspekti­vischer Darstellung.
  • Fig. 2 einen Teil der Dachabdeckung mit in einer Rinne des Trapezbleches angeordneten Schläuchen gemäß der Fig. 1 in vergrößerter Querschnittsdarstel­lung,
  • Fig. 3 den gefüllten Schlauch in einer Seitenansicht,
  • Fig. 4 den Schlauch der Fig. 3 in einer Draufsicht,
  • Fig. 5 ein gefülltes Kissen als Alternative zum Schlauch in einer Seitenansicht,
  • Fig. 6 das Kissen in einer Seitenansicht, und
  • Fig. 7 einen Querschnitt durch eine Wandabdeckung.
Preferred embodiments of the invention are explained below with reference to the drawing. In this show:
  • Fig. 1 is a roof covering with a support layer formed as a trapezoidal sheet with further layers above in a cut, perspective view.
  • Fig. 2 shows a part of the roof covering in a gutter of the trapezoidal sheet arranged hoses according to FIG. 1 in an enlarged cross-sectional view,
  • 3 shows the filled hose in a side view,
  • 4 is a top view of the hose of FIG. 3,
  • 5 a filled pillow as an alternative to the hose in a side view,
  • Fig. 6 shows the pillow in a side view, and
  • Fig. 7 shows a cross section through a wall cover.

Die in Fig. 1 gezeigte Ausführungsform bezieht sich auf eine Dachabdeckung 10 aus mehreren Schichten. Die Dachab­deckung 10 setzt sich (von unten nach oben) zusammen aus einer Tragschicht 11, einer Dampfsperre 12, einer Dämm­stoffschicht 13 sowie drei Abdichtungsbahnen 14, 15 und 16.The embodiment shown in FIG. 1 relates to a roof covering 10 made of several layers. The roof covering 10 is composed (from bottom to top) of a base layer 11, a vapor barrier 12, an insulation layer 13 and three sealing sheets 14, 15 and 16.

Die Tragschicht 11 ist in üblicher Weise aus Stahlblech gefertigt, nämlich als Trapezblech 17 ausgebildet. Das Trapezblech 17 verfügt dadurch über nebeneinander angeord­nete Rinnen 18, die nach oben, d.h. zur Dampfsperre 12 hin, offen sind. Bei geneigter Anordnung der Dachabdeckung 10 sind die Rinnen 18 in Parallelerstreckungsrichtung zum Dachfirst orientiert, verlaufen also etwa horizontal.The base layer 11 is made in the usual way from sheet steel, namely as a trapezoidal sheet 17. The trapezoidal sheet 17 thus has grooves 18 arranged next to one another, which upwards, i.e. towards the vapor barrier 12, are open. When the roof covering 10 is inclined, the channels 18 are oriented in the direction of parallel to the ridge of the roof, that is to say run approximately horizontally.

Bei der in der Fig. 1 dargestellten Dachabdeckung 10 lie­gen in den Rinnen 18 jeweils langgestreckte, den Quer­schnitt derselben annähernd ausfüllende Hohlkörper, näm­lich Schläuche 19. Gemäß der Fig. 2 sind die Schläuche 19 kürzer als die jeweilige Rinne 18 ausgebildet. Demzufolge sind in jeder Rinne 18 mehrere Schläuche 19 hintereinander liegend angeordnet. Die Länge der Schläuche 19 ist so ge­ wählt, daß diese für sich problemlos handhabbar sind. Un­ter diesem Gesichtspunkt hat es sich als zweckmäßig erwie­sen, die Schläuche 19 mit einer Länge von etwa einem Meter zu versehen.In the roof covering 10 shown in FIG. 1, elongated hollow bodies, namely hoses 19, lie in the grooves 18, approximately filling the cross-section thereof. According to FIG. 2, the hoses 19 are shorter than the respective groove 18. Accordingly, a plurality of hoses 19 are arranged one behind the other in each channel 18. The length of the tubes 19 is so ge chooses that these are easy to handle for themselves. From this point of view, it has proven to be expedient to provide the hoses 19 with a length of approximately one meter.

Im Brandfalle kommt es darauf an, die Tragschicht 11 vor Überhitzung zu schützen, damit diese nicht an Festigkeit verliert. Dieses wird durch die in den Schläuchen 19 ein­geschlossene Flüssigkeit erreicht. Die bei einem Brand entstehende Hitzeentwicklung bringt die sich im Bereich des Brandherdes befindlichen Schläuche 19 zum Platzen oder sie schmilzt Löcher in die Schläuche 19, wodurch die darin angeordnete Flüssigkeit freigesetzt wird.In the event of a fire, it is important to protect the base layer 11 from overheating so that it does not lose its strength. This is achieved by the liquid enclosed in the tubes 19. The development of heat during a fire causes the hoses 19 located in the area of the fire to burst or it melts holes in the hoses 19, as a result of which the liquid arranged therein is released.

Als Flüssigkeit in den Schläuchen 19 findet hier in beson­derer Weise behandeltes, nämlich eingedicktes Wasser 21 Verwendung. Hierdurch erhält das Wasser 21 eine relativ hohe Viskosität, wodurch verhindert wird, daß bei Platzen oder Durchschmelzen eines oder mehrerer Schläuche(s) im Brandfalle das darin angeordnete Wasser kurzfristig und somit nahezu ungenutzt abfließen kann. Vielmehr bleibt das eingedickte Wasser 21 nahezu in den Schläuchen 19, und zwar insbesondere auch in den geplatzten bzw. durchge­brannten Schläuchen 19, wo es verdampft. Durch die großeTreated, namely thickened, water 21 is used here as the liquid in the tubes 19. As a result, the water 21 has a relatively high viscosity, which prevents the water arranged in it from bursting or melting in the event of a fire or in the event of a fire, and the water disposed therein can flow out for a short time and thus almost unused. Rather, the thickened water 21 remains almost in the hoses 19, in particular also in the burst or blown hoses 19, where it evaporates. By the big one

Wärmekapazität des Wassers (und zwar auch im gelierten Zu­stand) sowie die benötigte Verdampfungsenergie wird die Wärme von der Tragschicht 11 abgeleitet. Beeinträchtigun­gen der Tragschicht 11 in statischer Hinsicht treten somit in nennenswertem Umfang nicht auf. Die aufsteigende Feuch­tigkeit schafft außerdem ein ungünstiges Klima für das Entstehen eines Brandes im Dachausbau, insbesondere in den über der Tragschicht 11 angeordneten Schichten.Heat capacity of the water (even in the gelled state) and the required evaporation energy, the heat is derived from the base layer 11. Impairments of the base layer 11 from a static point of view therefore do not occur to any appreciable extent. The rising moisture also creates an unfavorable climate for the occurrence of a fire in the loft, particularly in the layers arranged above the base layer 11.

Zur Eindickung des Wassers 21 finden bevorzugt organische Substanzen Verwendung. Als solche kommen insbesondere in Betracht Zelluloseäther bzw. Salze eines Acrylsäurepoly­mers oder - copolymers. Diese führen bereits bei gering­ ster Konzentration, also beim Einsatz kleiner Mengen, zu einer ausgiebigen Verdickung des Wassers 21. Vor allem ist bei Verwendung dieser Substanzen auch gewährleistet, daß das Wasser 21 auch nach Jahren noch nahezu unverändert sei-nen verdickten Zustand beibehält, und zwar ohne eine Fäulnisbildung oder dgl. Um eine Fäulnisgefahr mit Sicher­heit auszuschließen, kann dem Wasser neben dem Verdik­kungsmittel noch ein Konservierungsmittel zugefügt werden. Als Konservierungsmittel kommen in Betracht: Methyl-p-Hy­droxybenzoat,Isothiazolynone, p-Hydroxybenzoesäureethyl­ester (Handelsname Solbrol A der Bayer AG), p-Hydroxyben­zoesäuremethylester (Handelsname Solbrol M der Bayer AG), p-Hydroxybenzoesäurepropylester (Handelsname Solbrol P der Bayer AG), Benzoesäure, Natriumbenzoat, Sorbinsäure oder Kaliumsorbat. Diese Substanzen eignen sich wegen ihrer toxikologischen Unbedenklichkeit in besonders vorteilhaf­ter Weise als Konservierungsmittel.Organic substances are preferably used to thicken the water 21. As such, cellulose ethers or salts of an acrylic acid polymer or copolymer are particularly suitable. These already lead to low very high concentration, i.e. when using small amounts, to an extensive thickening of the water 21. Above all, when using these substances, it is also ensured that the water 21 retains its thickened state even after years, without any rotting or Like. In order to exclude with certainty a risk of rotting, a preservative can be added to the water in addition to the thickening agent. Possible preservatives are: methyl p-hydroxybenzoate, isothiazolynone, p-hydroxybenzoic acid ethyl ester (trade name Solbrol A from Bayer AG), p-hydroxybenzoic acid methyl ester (trade name Solbrol M from Bayer AG), p-hydroxybenzoic acid propyl ester (trade name Solbrol P from Bayer AG), Benzoic acid, sodium benzoate, sorbic acid or potassium sorbate. Because of their toxicological harmlessness, these substances are particularly suitable as preservatives.

Bei Verwendung von Poly-Acralsäure als Ausgangssubstanz für das Verdickungsmittel entsteht die Verdickung des Wassers 21 dadurch, daß letzteres zunächst mit 0,05 bis 1 Gew.%, insbesondere 0,25 Gew.%, Acrylsäure vermischt wird, ohne daß dabei bereits eine nennenswerte Verdickung des Wassers eintritt. Erst nach Hinzufügen einer äquiva­lenten Menge eines Neutralisationsmittels, beispielsweise einer 10 %igen Natronlauge, zum Wasser 21 und der in die­sem Wasser 21 bereits gelösten Poly-Acrylsäure erfolgt ei­ne schlagartige Verdickung der Lösung, wodurch eine Hoch­viskosemasse entsteht. Anstatt Natronlauge kann als Neu­tralisationsmittel auch eine andere Lauge Verwendung fin­den. Weiter ist es alternativ möglich, niedermolekulare Amine oder Ammoniumhydroxide als Neutralisationsmittel zu verwenden.When using polyacrylic acid as the starting substance for the thickener, the thickening of the water 21 arises from the fact that the latter is first mixed with 0.05 to 1% by weight, in particular 0.25% by weight, of acrylic acid, without any significant value Thickening of the water occurs. Only after adding an equivalent amount of a neutralizing agent, for example a 10% sodium hydroxide solution, to the water 21 and the polyacrylic acid already dissolved in this water 21 does the solution suddenly thicken, resulting in a high-viscosity composition. Instead of sodium hydroxide solution, another alkali can also be used as the neutralizing agent. It is also alternatively possible to use low molecular weight amines or ammonium hydroxides as neutralizing agents.

Das Konservierungsmittel, bei dem es sich um die weiter oben genannten Substanzen handeln kann, wird dem Wasser 21 vor der Neutralisation der Poly-Acrylsäure zugegeben, also noch vor dem Eintritt der Verdickung.The preservative, which can be the substances mentioned above, is added to the water 21 before the neutralization of the polyacrylic acid, ie even before the thickening occurs.

Das nachfolgende Beispiel soll die Relation zwischen dem Wasser 21 und dem Verdickungsmittel sowie dem Konservie­rungsmittel bei Verwendung von Poly-Acrylsäure als Aus­gangssubstanz verdeutlichen. Demnach wird folgendes Mi­schungsverhältnis verwendet:

Figure imgb0001
The following example is intended to illustrate the relationship between the water 21 and the thickener and the preservative when using polyacrylic acid as the starting substance. The following mixing ratio is used:
Figure imgb0001

Um die Neutralisation des Verdickungsmittels bei der Her­stellung des verdickten Wassers 21 zu vermeiden, ist es auch denkbar, dem zu verdickenden Wasser unmittelbar das Natriumsalz eines Copolymers (Hostacerin der Firma Hoechst) zuzugeben. Die Verwendung eines Neutralisations­mittels, beispielweise einer 10 %igen Natronlauge, ist dann zur Fertigstellung des verdickten Wassers 21 nicht mehr erforderlich.In order to avoid the neutralization of the thickener during the production of the thickened water 21, it is also conceivable to directly add the sodium salt of a copolymer (Hostacerin from Hoechst) to the water to be thickened. The use of a neutralizing agent, for example a 10% sodium hydroxide solution, is then no longer necessary to complete the thickened water 21.

Die Verdickung des Wassers unter Zuhilfenahme von Zellu­loseäther kann mit 1 - 5 Gew.%, insbesondere 3 Gew.%, Methylzellulose erfolgen. Es ergibt sich dann folgendes Mischungsverhältnis:

Figure imgb0002
The thickening of the water with the aid of cellulose ether can take place with 1-5% by weight, in particular 3% by weight, of methyl cellulose. The following mixing ratio then results:
Figure imgb0002

Die beiden vorstehend genannten Mischungen können alterna­tiv noch Zusatzstoffe, nämlich Texotopiermittel, bei­spielsweise Kieselsäure, aber auch zusätzlich zu den Zu­satzstoffen oder alternativ hierzu anorganische Füllstoffe aufweisen.As an alternative, the two mixtures mentioned above can also contain additives, namely texturing agents, for example silica, but also in addition to the additives or, alternatively, inorganic fillers.

Die zur Aufnahme des verdickten Wassers 21 dienenden Schläuche 19 sind hergestellt aus einem thermoplastischen Kunststofflaminat. Vorzusgweise besteht dieses aus zwei Schichten, nämlich einer (inneren) Äthylenvinylacetatco­polymer-Schicht und einer (äußeren) Polyäthylen-Schicht. Beide Schichten sind bei der Herstellung miteinander ver­bunden. Durch diese Ausbildung des Laminats, insbesondere die innenliegende Anordnung der Äthylenvinylacetatcopoly­mer-Schicht, ist eine besonders gute Schweißbarkeit des Schlauchs 19 gewährleistet, da zur Bildung der Flossennäh­te 22 die zueinander gerichteten (inneren) Äthylenvinyl­acetatcopolymer-Schichten unmittelbar miteinander ver­schweißbar sind, die im Vergleich zum Polyäthylen der Au­ßenlage über bessere Schweißeigenschaften, insbesondere über eine niedrige Schmelztemperatur, verfügen. Demgegen­über gewährleistet die Polyäthylen-Außenlage eine auch auf längere Dauer zuverlässige Gasdichtigkeit der Schläuche 19, wodurch eine Verflüchtigung bzw. Zersetzung des darin angeordneten verdickten Wassers 21 zuverlässig vermieden wird. Vorzugsweise sind die äußeren Polyäthylen-Schichten des Laminats dicker als die (inneren) Äthylenvinylacetat­copolymer-Schichten.The hoses 19 used to hold the thickened water 21 are made of a thermoplastic plastic laminate. It preferably consists of two layers, namely an (inner) ethylene vinyl acetate copolymer layer and an (outer) polyethylene layer. Both layers are connected to one another during manufacture. This configuration of the laminate, in particular the internal arrangement of the ethylene vinyl acetate copolymer layer, ensures particularly good weldability of the tube 19, since the (inner) ethylene vinyl acetate copolymer layers facing one another can be welded directly to one another in order to form the fin seams 22, which layers compared to polyethylene the outer layer has better welding properties, especially a low melting temperature. In contrast, the polyethylene outer layer ensures that the hoses 19 are gas-tight even over a long period of time, thereby reliably preventing volatilization or decomposition of the thickened water 21 arranged therein. Preferably the outer polyethylene layers of the laminate are thicker than the (inner) ethylene vinyl acetate copolymer layers.

Gebildet werden die Schläuche 19 dadurch, daß von einem endlosen, vorzugsweise zylindrischen Schlauchstrang mit einer Wandstärke von etwa 0,4 mm ein an entgegengesetzten Stirnseiten offener Schlauchabschnitt in entsprechender Länge abgetrennt und zunächst eine Stirnseite zugeschweißt wird, vorzugsweise durch eine Siegelschweißung, wodurch an einer Seite eine Flossennaht 22 entsteht. Durch die dann noch offene Stirnseite des soweit vorbereiteten Schlauchs wird dann das bereits verdickte Wasser 21 eingefüllt. Hiernach wird die zum Einfüllen des verdickten Wassers of­fengelassene zweite Stirnseite ebenfalls durch eine Sie­gelschweißung verschlossen, so daß auch hier eine Flos­sennaht 22 entsteht. Aufgrund der vorstehend beschriebenen Herstellungsweise ergibt sich ein Schlauch 19 gemäß der Fig. 3 und 4. Dieser schließt das darin enthaltene, einge­dickte Wasser hermetisch luftdicht ab, so daß dieses vor äußeren Einflüssen auch über einen längeren Zeitraum hin­weg wirksam geschützt ist, und zwar insbesondere vor einem Verdunsten bzw. Zersetzen.The tubes 19 are formed in that an endless, preferably cylindrical tube strand with a wall thickness of about 0.4 mm is opposite to one another The end of the open tube section is cut to the appropriate length and an end face is first welded closed, preferably by a seal weld, whereby a fin seam 22 is formed on one side. The already thickened water 21 is then filled through the then still open end face of the tube prepared so far. Thereafter, the second end face left open for filling in the thickened water is likewise closed by a seal weld, so that a fin seam 22 is also formed here. Due to the method of manufacture described above, a hose 19 according to FIGS. 3 and 4 results. This closes the thickened water contained therein hermetically airtight, so that it is effectively protected from external influences over a longer period of time, in particular from evaporation or decomposition.

Für den Schlauch 19 kann auch ein dreischichtiges Laminat aus einer (inneren) Polyäthylen-Schicht, einer dazwischen­liegen Aluminium-Schicht und einer (äußeren) Polyester-­Schicht Verwendung finden. Dabei kann die Aluminium-­Schicht durch einseitiges, inneres Bedampfen entweder der Polyäthylen- oder der Polyester-Schicht gebildet sein. Die Verschweißung des Schlauchs 19 zur Bildung der Flossennäh­te 22 erfolgt hier an den zueinander gerichteteten (inne­ren) Polyäthylen-Schichten, die gegenüber den (äußeren) Polyester-Schichten eine geringere Schmelztemperatur auf­weisen, so daß eine einwandfreie Verschweißung ohne nen­nenswerte Beeinträchtigung der äußeren, höherschmelzenden Polyester-Schicht möglich ist.A three-layer laminate composed of an (inner) polyethylene layer, an intermediate aluminum layer and an (outer) polyester layer can also be used for the hose 19. The aluminum layer can be formed by one-sided, internal vapor deposition of either the polyethylene or the polyester layer. The welding of the tube 19 to form the fin seams 22 takes place here on the mutually directed (inner) polyethylene layers, which have a lower melting temperature than the (outer) polyester layers, so that a perfect welding without appreciable impairment of the outer, higher-melting polyester Layer is possible.

Die Fig. 5 und 6 zeigen eine Alternative zum Schlauch 19, nämlich einen als Kissen 23 ausgebildeten Hüllkörper für das verdickte Wasser 21. Dieses Kissen 23 wird gebildet aus zwei doppellagig angeordneten, länglichen Zuschnitten 24 und 25. Diese werden zunächst an gegenüberliegenden Längsrändern 26 verschweißt, wodurch hier zwei parallele Längsnähte 27 entstehen. Sodann wird eine der beiden offe­nen Stirnseiten durch eine weitere Schweißnaht, nämlich wiederum eine Flossennaht 28, vorschlossen. Durch die dann noch offene zweite Stirnseite wird das verdickte Wasser 21 in das Kissen 23 eingefüllt und dieses hiernach vollstän­dig verschlossen durch Bildung der zweiten Flossennaht 28.5 and 6 show an alternative to the hose 19, namely an envelope body designed as a cushion 23 for the thickened water 21. This cushion 23 is formed from two elongated blanks 24 and 25 arranged in two layers. These are first welded to opposite longitudinal edges 26 , so here two parallel ones Longitudinal seams 27 arise. Then one of the two open end faces is pre-closed by a further weld seam, namely again a fin seam 28. The thickened water 21 is then filled into the cushion 23 through the second end face, which is then still open, and this is then completely closed by forming the second fin seam 28.

Als Material für das Kissen 23 kommt entweder ein zwei­schichtiges thermoplastisches Laminat aus den im Zusammen­hang mit dem Schlauch 19 beschriebenen Materialien oder ein dreilagiges Laminat mit einer Aluminium-Zwischen­schicht in Betracht.The material for the cushion 23 is either a two-layer thermoplastic laminate from the materials described in connection with the hose 19 or a three-layer laminate with an aluminum intermediate layer.

Die Fig. 7 zeigt eine aufrechte Wandabdeckung 29. Bei die­ser sind zwischen zwei Tragschichten 11, nämlich Trapez­blechen 17 mit horizontal verlaufenden Rinnen 18, eine (mittige) Schaumstoffschicht 30 und die in den Fig. 5 und 6 dargestellten Kissen 23 angeordnet. Die Wandabdeckung 29 verfügt somit über einen sandwichartigen Aufbau.FIG. 7 shows an upright wall cover 29. In this case, a (central) foam layer 30 and the cushions 23 shown in FIGS. 5 and 6 are arranged between two base layers 11, namely trapezoidal sheets 17 with horizontally running channels 18. The wall cover 29 thus has a sandwich-like structure.

Alternativ ist möglich, in den Rinnen 18 der Trapezbleche 17 anstatt der Kissen 23 Schläuche 19 unterzubringen.Alternatively, it is possible to accommodate tubes 19 instead of the pillows 23 in the grooves 18 of the trapezoidal sheets 17.

Die in den Fig. 1 und 2 gezeigte Dachabdeckung 10 bzw. die in der Fig. 7 dargestellte Wandabdeckung 29 verfügen in den Rinnen 18 der Trapezbleche 17 jeweils über in einer Lage hintereinander angeordnete Schläuche 19 bzw. Kissen 23. Im Gegensatz hierzu ist es alternativ denkbar, dünnere Schläuche 19 bzw. Kissen 23 mit geringeren Querschnittsab­messungen auch nebeneinander- bzw. in mehreren Schichten übereinanderliegend in den Rinnen 18 anzuordnen.The roof cover 10 shown in FIGS. 1 and 2 and the wall cover 29 shown in FIG. 7 each have hoses 19 or cushions 23 arranged one behind the other in the grooves 18 of the trapezoidal sheets 17. In contrast, it is alternative it is conceivable to arrange thinner hoses 19 or pillows 23 with smaller cross-sectional dimensions also next to one another or in several layers one above the other in the channels 18.

Gemäß einer bevorzugten Weiterbildung der Erfindung sind in den Rinnen 18 abwechselnd Schläuche 19 bzw. Kissen 23 mit unverdicktem Wasser und verdicktem Wasser 21 ange­ordnet. Die Kissen 23 bzw. Schläuche 19 mit verdicktem Wasser 21 bilden dann die Rinnen 18 flüssigkeitsdicht verschließenden Barrieren gegen ein Abfließen des unver­dickten Wassers nach einem Platzen oder Durchbrennen der dieses aufnehmenden Kissen 23 oder Schläuche 19. Auch ist es denkbar, zwischen jeweils zwei Kissen 23 oder Schläuchen 19 mit verdicktem Wasser 21 mehrere Kissen 23 oder Schläuche 19 mit unverdicktem Wasser an­zuordnen.According to a preferred development of the invention, hoses 19 or pillows 23 with non-thickened water and thickened water 21 are alternately arranged in the channels 18. The pillows 23 or hoses 19 with thickened water 21 then form the channels 18 in a liquid-tight manner closing barriers to prevent the unthickened water from flowing out after the cushions 23 or hoses 19 receiving or bursting have burnt or burned through.

Bezugszeichenliste:Reference symbol list:

  • 10 Dachabdeckung10 roof cover
  • 11 Tragschicht11 base layer
  • 12 Dampfsperre12 vapor barrier
  • 13 Dämmstoffschicht13 layer of insulation
  • 14 Abdichtungsbahn14 waterproofing membrane
  • 15 Abdichtungsbahn15 waterproofing membrane
  • 16 Abdichtungsbahn16 waterproofing membrane
  • 17 Trapezblech17 trapezoidal sheet
  • 18 Rinne18 gutter
  • 19 Schlauch19 hose
  • 21 Wasser (verdickt)21 water (thickened)
  • 22 Flossennaht22 fin seam
  • 23 Kissen23 pillows
  • 24 Zuschnitt24 cut
  • 25 Zuschnitt25 cut
  • 26 Längsrand26 longitudinal edge
  • 27 Längsnaht27 longitudinal seam
  • 28 Flossennaht28 fin seam
  • 29 Wandabdeckung29 Wall cover
  • 30 Schaumstoffschicht30 foam layer

Claims (10)

1. Dach- oder Wandabdeckung für ein Gebäude oder dgl. mit einer offene Rinnen (18) aufweisenden Tragschicht (11), vorzugsweise aus Trapezblech (17), und einer in den Rinnen (18) angeordneten brandhemmenden Flüssigkeit, da­durch gekennzeichnet, daß zumindest ein Teil der brandhemmenden Flüssigkeit eingedickt ist.1. roof or wall covering for a building or the like. With an open channels (18) having a base layer (11), preferably made of trapezoidal sheet (17), and a fire-retardant liquid arranged in the channels (18), characterized in that at least one Part of the fire retardant liquid is thickened. 2. Dach- oder Wandabdeckung nach Anspruch 1, dadurch ge­kennzeichnet, daß die brandhemmende Flüssigkeit durch eine organische Substanz (Verdickungsmittel) eingedicktes Was­ser (21) ist.2. Roof or wall cover according to claim 1, characterized in that the fire-retardant liquid is thickened water (21) by an organic substance (thickener). 3. Dach- oder Wandabdeckung nach Anspruch 1 oder 2, da­ durch gekennzeichnet, daß das Verdickungsmittel Zellulo­seäther ist, insbesondere Methylzellulose mit einer Kon­zentration von 1 bis 5 Gew.%, vorzugsweise 3 Gew.%.3. Roof or wall cover according to claim 1 or 2, there characterized in that the thickener is cellulose ether, in particular methyl cellulose with a concentration of 1 to 5% by weight, preferably 3% by weight. 4. Dach- oder Wandabdeckung nach Anspruch 1 oder 2, da­durch gekennzeichnet, daß das Verdickungsmittel ein neu­tralisiertes Acrylsäurepolymer bzw. -copolymer, insbeson­dere Polyacrylsäure mit einer Konzentration von 0,05 bis 1 Gew.%, vorzugsweise 0,25 Gew.%, ist.4. Roof or wall covering according to claim 1 or 2, characterized in that the thickener is a neutralized acrylic acid polymer or copolymer, in particular polyacrylic acid with a concentration of 0.05 to 1% by weight, preferably 0.25% by weight . 5. Dach- oder Wandabdeckung nach einem oder mehreren der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß dem Ver­dickungsmittel ein Konservierungsmittel, insbesondere Iso­thiazolynone, Methyl-p-Hydroxybenzoat, p-Hydroxybenzoesäu­reethylester, p-Hydroxybenzoesäuremethylester, p-Hydroxy­benzoesäurepropylester, Benzoesäure, Natriumbenzoat, Sor­binsäure oder Kaliumsorbat, zugefügt ist.5. Roof or wall cover according to one or more of claims 1 to 4, characterized in that the thickener is a preservative, in particular isothiazolynones, methyl p-hydroxybenzoate, ethyl p-hydroxybenzoate, methyl p-hydroxybenzoate, propyl p-hydroxybenzoate, benzoic acid, sodium benzoate, Sorbic acid or potassium sorbate is added. 6. Dach- oder Wandabdeckung nach einem oder mehreren der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß das einge­dickte Wasser (21) in Hüllorganen untergebracht ist, die vorzugsweise als gasdicht abgeschlossene Schläuche (19) bzw. Kissen (23) ausgebildet sind.6. Roof or wall cover according to one or more of claims 1 to 5, characterized in that the thickened water (21) is housed in enveloping elements, which are preferably designed as gas-tight hoses (19) or pillows (23). 7. Dach- oder Wandabdeckung nach Anspruch 6, dadurch ge­kennzeichnet, daß die Schläuche (19) bzw. Kissen (23) aus einem Kunststofflaminat gebildet sind, insbesondere aus einem mit Äthylenvinylacetatcopolymer modifizierten Poly­äthylen.7. Roof or wall cover according to claim 6, characterized in that the hoses (19) or pillows (23) are formed from a plastic laminate, in particular from a modified with ethylene-vinyl acetate copolymer polyethylene. 8. Dach- oder Wandabdeckung nach Anspruch 6, dadurch ge­kennzeichnet, daß die Schläuche (19) bzw. Kissen (23) aus einem dreischichtigen Polyäthylen/Aluminium/Polystyrol-­Laminat gebildet sind.8. Roof or wall cover according to claim 6, characterized in that the hoses (19) or pillows (23) are formed from a three-layer polyethylene / aluminum / polystyrene laminate. 9. Dach- oder Wandabdeckung nach Anspruch 6, dadurch ge­kennzeichnet, daß die Schläuche (19) an ihren gegenüber­ liegenden Stirnseiten zugeschweißt sind, vorzugsweise durch jeweils eine Flossennaht (22).9. Roof or wall cover according to claim 6, characterized in that the hoses (19) on their opposite lying end faces are welded, preferably by a fin seam (22). 10. Dach- oder Wandabdeckung nach Anspruch 7, dadurch ge­kennzeichnet, daß die Kissen (23) aus ringsherum ver­schweißten Zuschnitten (24, 25) gebildet sind.10. Roof or wall cover according to claim 7, characterized in that the pillows (23) from welded blanks (24, 25) are formed.
EP89106897A 1988-04-21 1989-04-18 Roof or wall covering Expired - Lifetime EP0338495B1 (en)

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CN110080469A (en) * 2019-06-04 2019-08-02 赵善富 A kind of gymnasium metal Roof
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EP0244795A1 (en) * 1986-05-03 1987-11-11 Roland-Werke Dachbaustoffe und Bauchemie GmbH &amp; Co. KG Building, roof or wall covering
FR2602257A1 (en) * 1986-08-01 1988-02-05 Auger Jean Fire-resisting construction element

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FR2239566A1 (en) * 1973-08-03 1975-02-28 Openroll Heat retarding fire cut off door - is steel asbestos sandwich contg. bags of low boiling point liquid
DE2518943A1 (en) * 1975-04-29 1976-11-11 Planacord Sa Insulating wall, ceiling, or door element - has at least one layer contg. high proportion of water within the cross-section of the element
EP0244795A1 (en) * 1986-05-03 1987-11-11 Roland-Werke Dachbaustoffe und Bauchemie GmbH &amp; Co. KG Building, roof or wall covering
FR2602257A1 (en) * 1986-08-01 1988-02-05 Auger Jean Fire-resisting construction element

Also Published As

Publication number Publication date
EP0338495B1 (en) 1994-02-02
DE8805266U1 (en) 1989-08-24
EP0338495A3 (en) 1990-05-16
DE58906859D1 (en) 1994-03-17
US5088249A (en) 1992-02-18
ATE101224T1 (en) 1994-02-15

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