EP0208650A1 - Façade insulation with backside ventilation - Google Patents

Façade insulation with backside ventilation Download PDF

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Publication number
EP0208650A1
EP0208650A1 EP86810210A EP86810210A EP0208650A1 EP 0208650 A1 EP0208650 A1 EP 0208650A1 EP 86810210 A EP86810210 A EP 86810210A EP 86810210 A EP86810210 A EP 86810210A EP 0208650 A1 EP0208650 A1 EP 0208650A1
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EP
European Patent Office
Prior art keywords
channels
flame arrester
facade
insulation according
facade insulation
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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.)
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EP86810210A
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German (de)
French (fr)
Inventor
Rolf A. Häring
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Haring and Kies AG
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Haring and Kies AG
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Publication of EP0208650A1 publication Critical patent/EP0208650A1/en
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    • 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
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
    • E04B1/7608—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only comprising a prefabricated insulating layer, disposed between two other layers or panels
    • E04B1/7612—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only comprising a prefabricated insulating layer, disposed between two other layers or panels in combination with an air space
    • 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
    • E04B1/945—Load-supporting structures specially adapted therefor

Definitions

  • the invention relates to ventilated facade insulation according to the preamble of claim 1.
  • a problem with facade insulation made of plastic foam panels is their behavior in the event of a fire.
  • the insulation panels are usually not made of heat-resistant material and, on the other hand, a chimney effect is generated by the ventilation channels, which promotes rapid fire spreading, particularly in the vertical direction.
  • the invention also relates to a flame arrester which is suitable for the construction of a facade insulation according to the invention.
  • the flame arrester preferably has the shape of a bar that extends horizontally and that has a plurality of passage channels that connect the ventilation channels in the insulation plates of the wall sections located above and below the flame arrester and in which fire protection means are provided, through which the passage channels if an upper limit temperature occurs in the ventilation channels of the relevant wall insulation panel adjacent to the flame arrester, they are largely or completely closed.
  • the passage channels in the flame barrier are preferably oriented with the same inclination as the ventilation channels in the plastic foam panels of the facade insulation adjacent to the flame barrier at the top and bottom.
  • At least one fire protection plate made of a refractory material which foams up when exposed to heat, which advantageously consists essentially of water-containing sodium silicate reinforced with fibers or wire, is preferably arranged.
  • the passage channels in the flame arrester and the properties of the fire protection plate, in particular the temperature at the start of the reaction and the foam volume produced, are coordinated with one another in such a way that the cross-sectional narrowing of the passage channels caused by the foaming of the fire protection plate is at least 80%. It is particularly favorable if the flame arrester also consists of a non-combustible and / or heat-insulating material.
  • the following materials have at least one of these properties and are therefore suitable as a material for the flame arrester: asbestos fibers, mineral fiber wool, glass wool, cork, pearlite, foamed water glass, flame-retardant polyurethane or a mixture of at least two of these materials.
  • the facade insulation attached to the building G shown in FIG. 1 is essentially constructed as described in EP-A - «. (note 84810196.0) and CH-PS 648 888 already mentioned above. It is composed of individual plastic foam panels P, which are equipped under their surface with a system of continuous vertical, or intersecting and interconnected, ventilation channels K inclined at 45 degrees to the vertical. The usual plaster or abrasion layer is on the plates P.
  • the insulating facade is divided between the ground and upper floors of the building by a horizontal, beam-shaped flame arrester F into two sections 1 and 2.
  • the flame arrester F which consists of a non-combustible insulating material, has a multiplicity of through channels 3 which connect the ventilation channels K in the plates P above and below the flame arrester F.
  • These through-channels 3 are preferably dimensioned approximately the same as the ventilation channels K in the plates P and, furthermore, are preferably also oriented in the same way as these, ie at 45 degrees to the vertical, or also vertically.
  • the number and arrangement of the fire protection panels 4 in the through channels 3 is of secondary importance. It is particularly important that the type of fire protection panels 4 and the dimensions sion of the through channels 3 are coordinated so that the cross-sectional area of the individual through channels is reduced by at least 80% in the event of fire. Preferably, the through channels 3 are practically completely blocked (100% reduction).
  • the fire protection panels 4 consist, for example, of a water-containing sodium silicate with small amounts of organic additives. They can be mechanically reinforced with glass fibers or wires and coated with epoxy resin.
  • a suitable fire protection panel of this type is e.g. offered under the brand name "PALUSOL” by the company BASF, D-6700 Ludwigshafen am Rhein.
  • the beam-shaped flame arrester F e.g. flame retardant polyurethane, cork, glass wool, perlite, synthetic resin-bonded glass fiber plates, asbestos fiber plates or molded glass (foamed water glass) can be used as mentioned above.
  • the number of flame arresters F in the insulating facade depends on their height. As a rule, there should be a flame arrester between two floors. In special cases, more or less flame arresters can of course also be provided in the entire facade.
  • the fire protection plates 4 can be arranged in the through channels 3 in different ways.
  • a particularly easy-to-assemble variant is shown in FIGS. 5 and 6.
  • all fire protection panels are in the form of two long strips 5 and 6, which extend through the entire flame arrester.
  • the fire protection strips 5 and 6 can simply be inserted or inserted lengthways due to the flexibility of the material from which the flame arrester is made.
  • cutouts can also be provided for these strips or plates, in particular in the inner wall of the through-channels near the joint between the flame arrester and the foam plates.
  • the fire protection panels are in a thin film e.g. made of aluminum, which is a good heat conductor and does not prevent the fire protection material from swelling when the critical temperature is reached.
  • the insulation material of the facade insulation can have both heat and sound insulation.
  • FIG. 7 and 8 of the flame arrestor according to the invention consists of two beam halves F1 and F2, F1 is so taken care of F2 that the passage channels 7 and 8 therein are freely connected to each other via an opening 11a in the parting line 11 are.
  • the channel 7 leads in the upper half of the bar F1 in front of the common opening lla closer to the front wall A of the facade and is through its upper opening 7a with the ventilation channel K1 inclined at 45 ° of the upper facade area 1 in free connection. A parallel to this channel K1 'is also shown.
  • the passage channel 8 is in the lower half of the beam F2 through its lower opening 8a with the ventilation channel K2 in the lower facade area 2 in free connection.
  • Another channel K2 ' is shown parallel to the channel K2 inclined at 45 °.
  • this transverse long channel 12 has recesses or grooves 12a and 12b, in which fire protection strips 9 and 10 are inserted.
  • Each of these strips consists of a core 9a, 10a and an envelope 9b, 10b made of aluminum foil which is so loose that it does not hinder expansion of the core by foaming or swelling when the temperature e.g. in the channels K2, K2 ', etc. and in the subsequent section of the passage channel 8 reaches a critical limit at which foaming or the like.
  • the fire protection strips 9 and 10 occur.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Acoustics & Sound (AREA)
  • Building Environments (AREA)
  • Duct Arrangements (AREA)

Abstract

Die Fassade ist aus Kunststoffschaumplatten (P) zusammengesetzt, welche unter der Oberfläche mit unter 45 Grad zur Vertikalen oder mit vertikal verlaufenden Belüftungskanälen (K) versehen sind. Die Fassade ist über ihre Höhe in Abschnitte unterteilt, wobei zwischen je zwei Abschnitten eine Flammensperre (F) vorgesehen ist. Die balkenförmige Flammensperre besteht aus einem nicht brennbaren Isolierstoff und besitzt eine Reihe von Durchgangskanälen (3) zur Verbindung der Beluftungskanäle in den angrenzenden Isolierschaumplatten. In den Durchgangskanälen befinden sich Brandschutzplatten (4) aus einem Material, da bei Hitzeeinwirkung aufschäumt, die Durchgangskanäle verschließt und dadurch die Brandausbreitung unterbindet.The facade is composed of plastic foam panels (P), which are provided under the surface with less than 45 degrees to the vertical or with vertical ventilation channels (K). The height of the facade is divided into sections, with a flame arrester (F) being provided between two sections. The bar-shaped flame arrester consists of a non-combustible insulating material and has a series of through-channels (3) for connecting the ventilation channels in the adjacent insulating foam panels. Fire protection panels (4) made of one material are located in the through ducts, as foaming when exposed to heat, closes the through ducts and thus prevents the spread of fire.

Description

Die Erfindung betrifft eine hinterlüftete Fassadenisolation gemäß dem Oberbegriff des Patentanspruchs 1.The invention relates to ventilated facade insulation according to the preamble of claim 1.

Zur thermischen Isolierung von Gebäuden werden deren Fas­saden vielfach mit Isolationen aus Kunststoffschaumplatten eingekleidet, welche unter der Oberfläche mit einem System von Belüftungskanälen versehen sind. Ein typisches Bei­spiel für eine solche hinterlüftete Fassade ist u.a. in der EP-A-........ (Anmeldung 84810196.0) und der CH-PS 648 888 beschrieben.For the thermal insulation of buildings, their facades are often clad with insulation made of plastic foam panels, which are provided with a system of ventilation channels underneath the surface. A typical example of such a ventilated facade is in EP-A -........ (application 84810196.0) and CH-PS 648 888.

Ein Problem bei Fassadenisolationen aus Kunststoffschaum­platten besteht in deren Verhalten im Brandfall. Einerseits bestehen die Isolationsplatten gewöhnlich nicht aus hitze­festem Material und andererseits wird durch die Belüftungs­kanäle eine Kaminwirkung erzeugt, welche eine rasche Brand­ausbreitung insbesondere in vertikaler Richtung begünstigt.A problem with facade insulation made of plastic foam panels is their behavior in the event of a fire. On the one hand, the insulation panels are usually not made of heat-resistant material and, on the other hand, a chimney effect is generated by the ventilation channels, which promotes rapid fire spreading, particularly in the vertical direction.

Durch die Erfindung soll nun dieses Problem gelöst werden, d.h., es soll eine hinterlüftete Fassadenisolation geschaf­fen werden, bei der eine Brandausbreitung weitestgehend un­terbunden ist.This problem is now to be solved by the invention, i.e. a ventilated facade insulation is to be created in which fire spread is largely prevented.

Die erfindungsgemäße Fassadenisolation, die diesen Anforde­rungen gerecht wird, ist im Patentanspruch 1 beschrieben. Bevorzugte Ausführungsformen ergeben sich aus den abhängi­gen Ansprüchen.The facade insulation according to the invention, which meets these requirements, is described in claim 1. Preferred embodiments result from the dependent claims.

Die Erfindung betrifft auch gemäß einem weiteren Aspekt eine Flammensperre, die für den Aufbau einer erfindungs­gemäßen Fassadenisolation geeignet st. Die Flammensperre hat dabei vorzugsweise die Gestalt eines Balkens, der sich horizontal erstreckt und der eine Vielzahl von Durchgangs­kanälen aufweist, welche die Belüftungskanäle in den Iso­lationsplatten der sich oberhalb und unterhalb der Flam­mensperre befindlichen Wandabschnitte miteinander verbin­den und in welchen Brandschutzmittel vorgesehen sind, durch die die Durchgangskanäle bei Auftreten einer oberen Grenztemperatur in den an die Flammensperre angrenzenden Belüftungskanälen der betreffenden Wandisolationsplatte weitgehend bis vollständig verschlossen werden. Die Durch­gangskanäle in der Flammensperre sind vorzugsweise mit der gleich Neigung verlaufend orientiert wie die Beluftungska­näle in den oben und unten an die Flammensperre angrenzen­den Kunststoffschaumplatten der Fassadenisolation.According to a further aspect, the invention also relates to a flame arrester which is suitable for the construction of a facade insulation according to the invention. The flame arrester preferably has the shape of a bar that extends horizontally and that has a plurality of passage channels that connect the ventilation channels in the insulation plates of the wall sections located above and below the flame arrester and in which fire protection means are provided, through which the passage channels if an upper limit temperature occurs in the ventilation channels of the relevant wall insulation panel adjacent to the flame arrester, they are largely or completely closed. The passage channels in the flame barrier are preferably oriented with the same inclination as the ventilation channels in the plastic foam panels of the facade insulation adjacent to the flame barrier at the top and bottom.

In den Durchgangskanälen der Flammensperre ist vorzugs­weise wenigstens eine Brandschutzplatte aus einem feuer­festen, bei Hitzeeinwirkung aufschäumenden Material, das vorteilhaft im wesentlichen aus mit Fasern oder Draht ver­stärktem wasserhaltigem Natriumsilikat besteht, angeordnet. Die Durchgangskanäle in der Flammensperre und die Eigen­schaften der Brandschutzplatte,insbesondere Temperatur des Reaktionsbeginns und erzeugtes Schaumvolumen,sind so aufeinander abgestimmt, daß die durch das Aufschäumen der Brandschutzplatte verursachte Querschnittsverengung der Durchgangskanäle mindestens 80 % beträgt. Besonders gün­stig ist es, wenn auch die Flammensperre aus einem nicht­brennbaren und/oder wärmeisolierenden Material besteht. Die folgenden Materialien besitzen mindestens eine dieser Eigenschaften und eignen sich daher als Material für die Flammensperre: Asbestfasern, mineralische Faserwolle, Glas­wolle, Kork, Perlit, geschäumtes Wasserglas, schwerent­flammbares Polyurethan oder eine Mischung aus mindestens je zwei dieser Materialien.In the passage channels of the flame arrester, at least one fire protection plate made of a refractory material which foams up when exposed to heat, which advantageously consists essentially of water-containing sodium silicate reinforced with fibers or wire, is preferably arranged. The passage channels in the flame arrester and the properties of the fire protection plate, in particular the temperature at the start of the reaction and the foam volume produced, are coordinated with one another in such a way that the cross-sectional narrowing of the passage channels caused by the foaming of the fire protection plate is at least 80%. It is particularly favorable if the flame arrester also consists of a non-combustible and / or heat-insulating material. The following materials have at least one of these properties and are therefore suitable as a material for the flame arrester: asbestos fibers, mineral fiber wool, glass wool, cork, pearlite, foamed water glass, flame-retardant polyurethane or a mixture of at least two of these materials.

Im folgenden wird die Erfindung anhand der Zeichnung näher erläutert. Es zeigen:

  • Fig. 1 eine Ansicht einer mit der erfindungsgemäßen Fas­sadenisolation versehenen Fassade eines Gebäudes,
  • Fig. 2 einen Detailquerschnitt nach der Linie II-II in Fig. 1,
  • Fig. 3 einen Schnitt nach der Linie III-III in Fig. 2,
  • Fig. 4 einen Detailschnitt analog Fig. 2, jedoch mit auf-­geschäumten Brandschutzplatten, und
  • Fig. 5 und 6 zwei Schnitte analog Fig. 2 durch eine Vari-­ante der Flammensperre nach der Erfindung.
The invention is explained in more detail below with reference to the drawing. Show it:
  • 1 is a view of a facade of a building provided with the facade insulation according to the invention,
  • 2 shows a detailed cross section along the line II-II in FIG. 1,
  • 3 shows a section along the line III-III in FIG. 2,
  • Fig. 4 shows a detail section analogous to FIG. 2, but with fire protection plates foamed on, and
  • 5 and 6 two sections analogous to FIG. 2 through a variant of the flame arrester according to the invention.

Die an dem in Fig. 1 dargestellten Gebäude G angebrachte Fassadenisolation ist im wesentlichen so aufgebaut, wie in der vorstehend schon angeführten EP-A-....... (Anm. 84810196.0) und der CH-PS 648 888 beschrieben. Sie ist aus einzelnen Kunststoffschaumplatten P zusammenge­setzt, welche unter ihrer Oberfläche mit einem System von durchgehenden vertikal verlaufenden, oder sich kreuzenden und untereinander verbundenen,unter 45 Grad zur Vertikalen geneigt verlaufenden Belüftungskanälen K ausgestattet sind. Auf den Platten P befindet sich die übliche Putz- oder Ab­riebschicht.The facade insulation attached to the building G shown in FIG. 1 is essentially constructed as described in EP-A -....... (note 84810196.0) and CH-PS 648 888 already mentioned above. It is composed of individual plastic foam panels P, which are equipped under their surface with a system of continuous vertical, or intersecting and interconnected, ventilation channels K inclined at 45 degrees to the vertical. The usual plaster or abrasion layer is on the plates P.

Die Isolierfassade ist zwischen Erd- und Obergeschoß des Gebäudes durch eine horizontale, balkenförmige Flammen­sperre F in zwei Abschnitte 1 und 2 unterteilt. Die Flam­mensperre F, welche aus einem nicht-brennbaren Isolier­material besteht, besitzt eine Vielzahl von Durchgangs­kanälen 3, welche die Belüftungskanäle K in den Platten P oberhalb und unterhalb der Flammensperre F verbinden. Die­se Durchgangskanäle 3 sind vorzugsweise etwa gleich dimen­sioniert wie die Belüftungskanäle K in den Platten P und ferner vorzugsweise auch gleich gerichtet wie diese, also unter 45 Grad zur Vertikalen, oder auch vertikal.The insulating facade is divided between the ground and upper floors of the building by a horizontal, beam-shaped flame arrester F into two sections 1 and 2. The flame arrester F, which consists of a non-combustible insulating material, has a multiplicity of through channels 3 which connect the ventilation channels K in the plates P above and below the flame arrester F. These through-channels 3 are preferably dimensioned approximately the same as the ventilation channels K in the plates P and, furthermore, are preferably also oriented in the same way as these, ie at 45 degrees to the vertical, or also vertically.

In den Durchgangskanälen 3 sind je zwei dünne Brandschutz­platten 4 aus einem feuerfesten, unter Hitzeeinwirkung aufschäumenden Material angeordnet. Im Brandfall schäumen diese Brandschutzplatten 4 auf und verschließen dadurch, wie Fig. 4 zeigt, die Durchgangskanäle 3 in der Flammen­sperre F. Dadurch wird die sonst bei Bränden in den Belüf­tungskanälen auftretende Kaminwirkung unterbrochen und der Brandherd eingedämmt.In the passageways 3, two thin fire protection plates 4 each made of a refractory material that foams under the influence of heat are arranged. In the event of a fire, these fire protection plates 4 foam up and, as shown in FIG. 4, thereby close the passageways 3 in the flame arrester F. As a result, the chimney effect which otherwise occurs in the ventilation ducts during fires is interrupted and the source of the fire is contained.

Die Anzahl und Anordnung der Brandschutzplatten 4 in den Durchgangskanälen 3 ist zweitrangig. Wichtig ist vor al­lem, daß die Art der Brandschutzplatten 4 und die Dimen­ sion der Durchgangskanäle 3 so aufeinander abgestimmt sind, daß im Brandfall die Querschnittsfläche der einzelnen Durchgangskanäle um wenigstens 80% reduziert wird. Vor­zugsweise werden die Durchgangskanäle 3 praktisch voll­ständig verstopft (Reduktion um 100%).The number and arrangement of the fire protection panels 4 in the through channels 3 is of secondary importance. It is particularly important that the type of fire protection panels 4 and the dimensions sion of the through channels 3 are coordinated so that the cross-sectional area of the individual through channels is reduced by at least 80% in the event of fire. Preferably, the through channels 3 are practically completely blocked (100% reduction).

Die Brandschutzplatten 4 bestehen beispielsweise aus einem wasserhaltigen Natriumsilikat mit geringen Mengen organi­scher Zusätze. Sie können mit Glasfasern oder Drähten mechanisch verstärkt und mit Epoxiharz beschichtet sein. Eine geeignete Brandschutzplatte dieser Art wird z.B. un­ter der Markenbezeichnung "PALUSOL" von der Firma BASF, D-6700 Ludwigshafen am Rhein, angeboten.The fire protection panels 4 consist, for example, of a water-containing sodium silicate with small amounts of organic additives. They can be mechanically reinforced with glass fibers or wires and coated with epoxy resin. A suitable fire protection panel of this type is e.g. offered under the brand name "PALUSOL" by the company BASF, D-6700 Ludwigshafen am Rhein.

Als Material für die balkenförmige Flammensperre F können z.B. schwer entflammbares Polyurethan, Kork, Glaswolle, Perlit, kunstharzgebundene Glasfaserplatten, Asbestfaser­platten oder Formglas (geschäumtes Wasserglas) wie oben erwähnt verwendet werden.As a material for the beam-shaped flame arrester F, e.g. flame retardant polyurethane, cork, glass wool, perlite, synthetic resin-bonded glass fiber plates, asbestos fiber plates or molded glass (foamed water glass) can be used as mentioned above.

Die Anzahl der Flammensperren F in der Isolierfassade richtet sich nach deren Höhe. In der Regel sollte sich je­weils zwischen zwei Geschoßen eine Flammensperre befinden. In besonderen Fällen können natürlich auch in der ganzen Fassade mehr oder weniger Flammensperren vorgesehen sein.The number of flame arresters F in the insulating facade depends on their height. As a rule, there should be a flame arrester between two floors. In special cases, more or less flame arresters can of course also be provided in the entire facade.

Die Brandschutzplatten 4 können in den Durchgangskanälen 3 auf verschiedene Weise angeordnet sein. Eine besonders montagegünstige Variante ist in Figuren 5 und 6 darge­stellt. Hier liegen sämtliche Brandschutzplatten in Form von zwei langen Streifen 5 und 6 vor, die sich durch die gesamte Flammensperre erstrecken. Die Brandschutzstreifen 5 und 6 können dabei aufgrund der Nachgiebigkeit des Mate­rials, aus dem die Flammensperre besteht, einfach der Län­ge nach in dieses eingesteckt oder eingelegt werden.The fire protection plates 4 can be arranged in the through channels 3 in different ways. A particularly easy-to-assemble variant is shown in FIGS. 5 and 6. Here all fire protection panels are in the form of two long strips 5 and 6, which extend through the entire flame arrester. The fire protection strips 5 and 6 can simply be inserted or inserted lengthways due to the flexibility of the material from which the flame arrester is made.

Selbstverständlich können für diese Streifen oder Platten auch Aussparungen insbesondere in der Innenwand der Durchgangskanäle nahe der Trennfuge zwischen Flammensperre und Schaumstoffplatten vorgesehen werden.Of course, cutouts can also be provided for these strips or plates, in particular in the inner wall of the through-channels near the joint between the flame arrester and the foam plates.

Vorzugsweise sind die Brandschutzplatten in eine dünne Folie, z.B. aus Aluminium eingehüllt, das gut wärmeleitend ist und ein Quellen des Brandschutzmaterials bei Erreichen der kritischen Temperatur nicht behindert.Preferably the fire protection panels are in a thin film e.g. made of aluminum, which is a good heat conductor and does not prevent the fire protection material from swelling when the critical temperature is reached.

Das Isoliermaterial der Fassadenisolätion kann sowohl wärme- als auch schalldämmend wirken.The insulation material of the facade insulation can have both heat and sound insulation.

Die in den Figuren 7 und 8 gezeigte Ausführungsform der Flammensperre nach der Erfindung besteht aus zwei Balken­hälften F₁ und F₂, wobei F₁ so auf F₂ aufgepaßt ist, daß die in ihnen befindlichen Durchlaßkanäle 7 und 8 miteinander über eine Öffnung lla in der Trennfuge 11 frei verbunden sind.The embodiment shown in Figures 7 and 8 of the flame arrestor according to the invention consists of two beam halves F₁ and F₂, F₁ is so taken care of F₂ that the passage channels 7 and 8 therein are freely connected to each other via an opening 11a in the parting line 11 are.

Der Kanal 7 führt in der oberen Balkenhälfte F₁ vor der gemeinsamen Öffnung lla näher an die Frontwand A der Fassade heran und steht durch seine obere Öffnung 7a mit dem unter 45° geneigten Belüftungskanal K₁ des oberen Fassadenbe­reichs 1 in Freier Verbindung. Ein zu diesem parallel ver­laufender Kanal K₁' ist gleichfalls gezeigt.The channel 7 leads in the upper half of the bar F₁ in front of the common opening lla closer to the front wall A of the facade and is through its upper opening 7a with the ventilation channel K₁ inclined at 45 ° of the upper facade area 1 in free connection. A parallel to this channel K₁ 'is also shown.

In gleicher Weise steht der Durchlaßkanal 8 in der unteren Balkenhälfte F₂ durch seine untere Öffnung 8a mit dem Belüf­tungskanal K₂ im unteren Fassadenbereich 2 in freier Verbin­dung. Parallel zum unter 45° geneigten Kanal K₂ ist noch ein weiterer Kanal K₂' gezeigt.In the same way, the passage channel 8 is in the lower half of the beam F₂ through its lower opening 8a with the ventilation channel K₂ in the lower facade area 2 in free connection. Another channel K₂ 'is shown parallel to the channel K₂ inclined at 45 °.

Durch den der Trennfuge 11 benachbarten Endbereich des Kanals 8 und den entsprechenden Bereichen der mit ihm paral­lelen Durchlaßkanäle der unteren Balkenhälfte F₂ erstreckt sich quer hindurch ein langer Kanal 12, der parallel mit der Fassadenfront A verläuft und dessen Bodenfläche mit 13 bezeichnet ist. In der linken und der rechten Seitenwand weist dieser querverlaufende lange Kanal 12 Ausnehmungen oder Nuten 12a bzw. 12b auf, in die Brandschutzstreifen 9 und 10 eingelegt sind. Jeder dieser Streifen besteht aus einem Kern 9a, lOa und einer Umhüllung 9b, lOb aus Alumini­umfolie, die so lose ist, daß sie ein Expandieren des Kerns durch Schäumen oder Quellen nicht behindert, wenn die Tempe­ratur z.B. in den Kanälen K₂, K₂', usw. und im anschließen­den Abschnitt des Durchlaßkanals 8 eine kritische Grenze er­reicht, bei der ein Auschäumen oder dergl. der Brandschutz­streifen 9 und 10 eintritt.Through the parting line 11 adjacent end region of the channel 8 and the corresponding areas of the parallel passage channels of the lower half of the beam F₂ extends transversely through a long channel 12, which runs parallel to the facade front A and whose bottom surface is designated by 13. In the left and the right side wall, this transverse long channel 12 has recesses or grooves 12a and 12b, in which fire protection strips 9 and 10 are inserted. Each of these strips consists of a core 9a, 10a and an envelope 9b, 10b made of aluminum foil which is so loose that it does not hinder expansion of the core by foaming or swelling when the temperature e.g. in the channels K₂, K₂ ', etc. and in the subsequent section of the passage channel 8 reaches a critical limit at which foaming or the like. The fire protection strips 9 and 10 occur.

Claims (11)

1. Hinterlüftete Fassadenisolation aus Kunststoffschaum­platten für Fassaden mit einem oberen und einem unteren Endbereich, versehen mit Belüftungskanälen, die sich vom einen der beiden Fassadenendbereiche zum anderen hin im wesentlichen über die gesamte Fassadenhöhe erstrecken, dadurch gekennzeichnet, daß die Platte in wenigstens zwei übereinander liegende Abschnitte unterteilt ist, und daß zwischen je zwei Abschnitten eine Flammensperre angeordnet ist.1. Ventilated facade insulation made of plastic foam panels for facades with an upper and a lower end area, provided with ventilation channels that extend from one of the two facade end areas to the other substantially over the entire facade height, characterized in that the plate in at least two superimposed sections is divided, and that a flame arrester is arranged between two sections. 2. Fassadenisolation nach Anspruch 1, dadurch gekennzeich­net, daß die Flammensperre eine Vielzahl von Durchgangs­kanälen aufweist, welche die Belüftungskanäle in den Ab­schnitten oberhalb und unterhalb der Flammensperre mit­einander verbinden, und daß sie Brandschutzmittel aufweist, durch welche die Durchgangskanäle bei Auftreten einer obe­ren Grenztemperatur in den an die Flammensperre angrenzen­den Belüftungskanälen weitgehend bis vollständig ver­schlossen werden.2. Facade insulation according to claim 1, characterized in that the flame arrester has a plurality of through channels which connect the ventilation channels in the sections above and below the flame arrester, and that it has fire protection means through which the through channels when an upper limit temperature occurs in the ventilation channels adjacent to the flame arrester are largely or completely closed. 3. Fassadenisolation nach Anspruch 2, dadurch gekennzeich­net, daß die Durchgangskanäle in der Flammensperre mit der gleichen Neigung verlaufend orientiert sind wie die Belüf­tungskanäle in den Kunststoffschaumplatten.3. Facade insulation according to claim 2, characterized in that the through-channels in the flame arrester are oriented with the same inclination as the ventilation channels in the plastic foam panels. 4. Fassadenisolation nach Anspruch 2, dadurch gekennzeich­net, daß in den Durchgangskanälen der Flammensperre wenig­stens eine Brandschutzplatte aus einem feuerfesten, bei Hitzeeinwirkung aufschäumenden Material angeordnet ist.4. facade insulation according to claim 2, characterized in that in the through-channels of the flame arrestor at least one fire protection plate made of a refractory, foaming under the influence of heat is arranged. 5. Fassadenisolation nach Anspruch 4, dadurch gekennzeich­net, daß die Brandschutzplatte im wesentlichen aus mit Fasern oder Draht verstärktem wasserhaltigen Natriumsilikat besteht.5. facade insulation according to claim 4, characterized in that the fire protection plate consists essentially of fibers or wire reinforced water-containing sodium silicate. 6. Fassadenisolation nach Anspruch 4, dadurch gekennzeich­net, daß die Durchgangskanäle und die wenigstens eine Brandschutzplatte so aufeinander abgestimmt sind, daß die durch Aufschäumen der Brandschutzplatte bedingte Quer­schnittsreduktion der Durchgangskanäle wenigstens 80% be­trägt.6. Facade insulation according to claim 4, characterized in that the through-channels and the at least one fire protection plate are matched to one another in such a way that the cross-sectional reduction of the through channels caused by foaming of the fire protection plate is at least 80%. 7. Fassadenisolation nach einem der Ansprüche 1-2, dadurch gekennzeichnet, daß die Flammensperre aus einem nicht brennbaren, wärmeisolierenden Material besteht.7. facade insulation according to one of claims 1-2, characterized in that the flame arrester consists of a non-combustible, heat-insulating material. 8. Fassadenisolation nach Anspruch 7, dadurch gekennzeich­net, daß die Flammensperre aus Asbestfasern, mineralischer Faserwolle, Glaswolle, Kork, Perlit, geschäumtem Wasser­glas, schwer entflammbaren Polyurethan oder einer Mischung aus mindestens zwei dieser Materialien besteht.8. facade insulation according to claim 7, characterized in that the flame arrester consists of asbestos fibers, mineral fiber wool, glass wool, cork, perlite, foamed water glass, flame-retardant polyurethane or a mixture of at least two of these materials. 9. Fassadenisolation nach einem der Ansprüche 1-8, dadurch gekennzeichnet, daß die Flammensperre balkenförmig ausge­bildet ist.9. facade insulation according to one of claims 1-8, characterized in that the flame arrester is bar-shaped. 10. Fassadenisolation nach einem der Ansprüche 1-8, da­durch gekennzeichnet, daß die Flammensperre horizontal an­geordnet ist.10. facade insulation according to one of claims 1-8, characterized in that the flame arrester is arranged horizontally. 11. Flammensperre für eine hinterlüftete Fassadenisolation nach einem oder mehreren der Ansprüche 2-8.11. flame arrester for ventilated facade insulation according to one or more of claims 2-8.
EP86810210A 1985-05-08 1986-05-09 Façade insulation with backside ventilation Withdrawn EP0208650A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH194385 1985-05-08

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US (1) US4823530A (en)
EP (1) EP0208650A1 (en)
DK (1) DK165342C (en)
ES (1) ES8706886A1 (en)
GR (1) GR861203B (en)

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DE4036865A1 (en) * 1990-11-19 1992-05-21 Hoechst Ag Flame prevention in resin bonded wall cladding - by blocking vertical airflow in airgap behind cellulose fibre panel across horizontal width
DE19643618A1 (en) * 1996-10-22 1998-04-23 Sto Ag Polystyrene cladding system for buildings with defence against inferno
EP0982444A1 (en) * 1998-08-27 2000-03-01 Baukork AG Device to avoid fire spreading in buildings
EP2426284A1 (en) * 2010-09-06 2012-03-07 Linzmeier Bauelemente GmbH Fire protection device for buildings
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EP3056623A1 (en) * 2015-02-13 2016-08-17 HILTI Aktiengesellschaft Façade module, building structure and method for installing the façade module
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US4823530A (en) * 1985-05-08 1989-04-25 Haering Rolf A Thermic insulating covers for facade and the like walls
DE4036865A1 (en) * 1990-11-19 1992-05-21 Hoechst Ag Flame prevention in resin bonded wall cladding - by blocking vertical airflow in airgap behind cellulose fibre panel across horizontal width
DE4036865C2 (en) * 1990-11-19 2000-03-02 Trespa Int Bv Ventilated facade cladding
DE19643618C5 (en) * 1996-10-22 2006-03-16 Sto Ag Wärmedämmverbundsystem
DE19643618A1 (en) * 1996-10-22 1998-04-23 Sto Ag Polystyrene cladding system for buildings with defence against inferno
DE19643618C2 (en) * 1996-10-22 2002-06-13 Sto Ag Wärmedämmverbundsystem
EP0982444A1 (en) * 1998-08-27 2000-03-01 Baukork AG Device to avoid fire spreading in buildings
EP2426284A1 (en) * 2010-09-06 2012-03-07 Linzmeier Bauelemente GmbH Fire protection device for buildings
WO2013110109A1 (en) 2012-01-24 2013-08-01 Laminati Prodotti Fzco. Façade system
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AT512530B1 (en) * 2012-01-24 2013-09-15 Syriamica FACADE SYSTEM
EP3056623A1 (en) * 2015-02-13 2016-08-17 HILTI Aktiengesellschaft Façade module, building structure and method for installing the façade module
WO2016128302A1 (en) * 2015-02-13 2016-08-18 Hilti Aktiengesellschaft Façade assembly, building construction, and method for mounting the façade assembly
WO2019174792A1 (en) * 2018-03-16 2019-09-19 Saint-Gobain Isover Rear-ventilated building facade as well as process for manufacturing same
US11299890B2 (en) 2018-03-16 2022-04-12 Saint-Gobain Isover Rear-ventilated building facade as well as process for manufacturing same

Also Published As

Publication number Publication date
ES555203A0 (en) 1987-07-01
DK211086D0 (en) 1986-05-07
US4823530A (en) 1989-04-25
DK211086A (en) 1986-11-09
ES8706886A1 (en) 1987-07-01
DK165342B (en) 1992-11-09
GR861203B (en) 1986-09-15
DK165342C (en) 1993-04-05

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