EP0959190A2 - Heat insulation element - Google Patents

Heat insulation element Download PDF

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Publication number
EP0959190A2
EP0959190A2 EP99108797A EP99108797A EP0959190A2 EP 0959190 A2 EP0959190 A2 EP 0959190A2 EP 99108797 A EP99108797 A EP 99108797A EP 99108797 A EP99108797 A EP 99108797A EP 0959190 A2 EP0959190 A2 EP 0959190A2
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EP
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Prior art keywords
thermal insulation
cover layers
core plate
insulation element
element according
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Granted
Application number
EP99108797A
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German (de)
French (fr)
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EP0959190B1 (en
EP0959190A3 (en
Inventor
Gerd-Rüdiger Dr.-Ing. Klose
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Deutsche Rockwool Mineralwoll GmbH and Co OHG
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Deutsche Rockwool Mineralwoll GmbH and Co OHG
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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
    • E04B1/78—Heat insulating elements
    • E04B1/80—Heat insulating elements slab-shaped
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/26—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
    • E04C2/284—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating
    • E04C2/296—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating composed of insulating material and non-metallic or unspecified sheet-material
    • 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
    • E04B2001/7683—Fibrous blankets or panels characterised by the orientation of the fibres

Definitions

  • the invention relates to a thermal insulation element for the insulation of Flat roofs and pitched roofs.
  • Thermal insulation elements are laid on flat roofs and sloping roofs.
  • the material thicknesses of the thermal insulation elements laid on flat roofs and sloping roofs have increased continuously as a result of legal requirements. These requirements serve to save heating energy.
  • the current level of the required thermal insulation is defined by a heat transmission coefficient k D ⁇ 0.30 W / m 2 K.
  • mineral wool insulation materials are predominantly installed on flat or sloping roofs. These mineral wool insulation materials are mainly applied to load-bearing roof shells, which mostly consist of profiled sheets for cost reasons.
  • the insulation materials must have sufficient flexural tensile strength so that they can bridge the clear widths between the upper chords of the profiled sheets or are sufficiently load-bearing when cantilevered over an upper chord.
  • the mineral wool insulation materials have bulk densities of more than 120 kg / m 3 , with an average of approx. 145 kg / m 3 being achieved.
  • the basis weight is therefore more than 18.9 kg / m 2 .
  • the use of large format elements with dimensions of 2 mx 1.2 m thus leads to a weight of more than 45 kg per element. Due to their weight, such elements lead to considerable loads on the craftsmen carrying out the laying.
  • rigid foam panels made of expanded or extruded polystyrene, polyurethane or phenolic resin foam instead of the relatively heavy mineral wool insulation panels.
  • these rigid foam panels only have bulk densities of 15 to 20 kg / m 3 , these panels are combustible and, under the influence of high temperatures in the component, tend to change shape, such as irreversible shrinkage or bowls.
  • the invention has for its object to provide a sufficiently stable, in particular tread-resistant thermal insulation element for the insulation of flat roofs and flat-pitched roofs, which is easy to handle due to a low bulk density even with large-sized elements and the requirements in terms of Non-flammability met.
  • a thermal insulation element which consists of a core plate with two large surfaces and top layers of mineral wool fibers arranged on the large surfaces, the core plate consisting of a material whose bulk density is lower than the bulk density of each top layer and the top layers are pressure-resistant in the direction of the surface normal of the large surfaces.
  • thermal insulation element has the advantage that Use a relatively light core plate in combination with two pressure-resistant and fire-resistant cover layers elements with relatively low Weight are created, which is therefore easy to handle are, so that the laying of several layers can be dispensed with.
  • the thermal insulation element according to the invention is therefore suitable for a Covering a flat roof or a flat-pitched roof with sufficiently large elements that allow rapid covering, i.e. in short Periods allowed, so that the requirements in terms of Bridging the top chords is fulfilled.
  • the core plate consists of a rigid foam, such as expanded or extruded polystyrene, polyurethane or phenolic resin foam. These materials have a bulk density between 10 and 30 kg / m 3 , preferably between 15 and 20 kg / m 3.
  • An 8 cm thick core plate with the dimensions 2 mx 1.2 m and a bulk density of 30 kg / m 3 then weighs accordingly 5.76 kg and is easy to handle, even with applied top layers, the top layers providing the necessary pressure resistance and fire resistance of the thermal insulation element.
  • the cover layers are preferably non-positively with the core plate connected, whereby the gluing of the cover layers to the core plate as has proven advantageous.
  • cover layers have fibers that predominantly at right angles to the large surfaces of the core plate are aligned.
  • the hard foam core plate prevents the Sheets over the cavity between the upper chords of the profile sheets when Commit or other stresses are punched.
  • the invention Arrangement of the fibers in the cover layers leads to a higher one Compressive strength or allows the bulk density for a given compressive strength of the mineral wool insulation boards as top layers, thereby reducing considerable cost reductions in the production of corresponding Have thermal insulation elements implemented.
  • the Cover layers are at least 2 cm, preferably 3 cm thick, so that a effective protection against fire from above - flying flames and radiant heat - as is achieved in the event of a fire attack from below.
  • cover layers can be both immediate Inflammation as well as the start of fire prevented or significantly delayed become.
  • thermal decoupling of the cover layers made of mineral wool fibers from the core plate made of rigid foam which is thermal conditional irreversible change in shape of the rigid foam from expanded Polystyrene can be significantly reduced or prevented.
  • the cover layers are preferably slightly laterally above the core plate forth.
  • the supernatant of the Form cover layers in a range between 2 and 5 mm.
  • the cover layers is relatively compressible, a joint-tight To allow laying of the thermal insulation elements.
  • the drawing shows a thermal insulation element 1 for the insulation of Flat roofs and pitched roofs.
  • the thermal insulation element 1 consists of a core plate 2, which has two large surfaces 3 and 4. The large surfaces 3 and 4 run parallel to one another.
  • a covering layer 5 is arranged on each large surface 3 and 4.
  • the Cover layers 5 consist of mineral wool insulation panels, which individual fibers are produced in a manner known per se.
  • the fibers are in the drawing indicated by the reference number 6 and run in substantially perpendicular to the large surfaces 3, 4 of the core plate 2.
  • the core plate 2 consists of a rigid foam, such as expanded or extruded polystyrene, polyurethane or Phenolic resin foam.
  • the large surfaces 3, 4 of the core plate 2 are with the Cover layers 5 glued.
  • cover layers 5 laterally slightly over the The core plate 2 protrude, with the fibers aligned in parallel Flexibility of the cover layers 5 parallel to the large surfaces 3, 4 of the Allow core plate 2, whereas the cover layers 5 parallel to Surface normals of the surfaces 3, 4 have a high compressive strength.
  • a thermal insulation element 1 described above can consist, for example, of a polystyrene rigid foam plate as the core plate 2 with a material thickness of 8 cm and a bulk density of 20 kg / m 3 .
  • On this core plate 2 two cover layers of 3 cm material thickness are applied from mineral wool insulation boards, which have a bulk density of 150 kg / m 3 .
  • the cover layers 5 are glued to the core plate 2 with an adhesive which has a weight of 1 kg / m 2 .
  • Such a thermal insulation element 1 has a weight per unit area of 11.6 kg / m 2 .
  • Compared to a conventional mineral wool insulation board with a normal basis weight of 20.6 kg / m 2 there is a 43% weight reduction, which means a significant simplification of handling.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Cable Accessories (AREA)
  • Thermistors And Varistors (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Building Environments (AREA)
  • Laminated Bodies (AREA)

Abstract

The element consists of a core panel (2) with two large upper surfaces (3,4), and cover layers (5) located on the upper surfaces. The core panel consists of a material whose density is less than the density of the cover layer, whereby the cover layers are compression-proof in the direction normal to the surface. The core panel consists of a hard foam such as expanded polysterol or polyurethane, and has a density of between 15 and 20 kg/m<3>. The cover layers are non-positively connected to the core panel using e.g. adhesive.

Description

Die Erfindung betrifft ein Wärmedämmelement für die Dämmung von Flachdächern und flachgeneigten Dächern.The invention relates to a thermal insulation element for the insulation of Flat roofs and pitched roofs.

Auf Flachdächern und flachgeneigten Dächern werden Wärmedämmelemente verlegt. Die Materialstärken der auf Flachdächern und flachgeneigten Dächern verlegten Wärmedämmelemente sind als Folge gesetzlicher Vorgaben ständig gestiegen. Diese Vorgaben dienen der Einsparung von Heizenergie. Das derzeitige Niveau der erforderlichen Wärmedämmung wird durch einen Wärmedurchlaßkoeffizienten kD≤ 0,30 W/m2 K definiert. Aus schallschutztechnischen Gründen und insbesondere aufgrund ihrer Nichtbrennbarkeit werden überwiegend Mineralwoll-Dämmstoffe auf flachen oder flachgeneigten Dächern eingebaut. Diese Mineralwoll-Dämmstoffe werden im wesentlichen auf tragenden Dachschalen aufgebracht, die aus Kostengründen zumeist aus Profilblechen bestehen. Die Dämmstoffe müssen eine ausreichende Biegezugfestigkeit aufweisen, damit sie die lichten Weiten zwischen den Obergurten der Profilbleche überbrücken können bzw. beim Auskragen über einen Obergurt ausreichend tragfähig sind. Um den Anforderungen nach DIN 18165, Teil 1 zu entsprechen, weisen die Mineralwolle-Dämmstoffe Rohdichten von mehr als 120 kg/m3 auf, wobei im Mittel ca. 145 kg/m3 erreicht wird. Bei einer Dämmstoffdicke von mehr als 13 cm beträgt das Flächengewicht somit mehr als 18,9 kg/m2. Die Verwendungen von großformatigen Elementen mit Abmessungen von 2 m x 1,2 m führt somit zu einem Gewicht von mehr als 45 kg pro Element. Derartige Elemente führen aufgrund ihres Gewichtes zu erheblichen Belastungen der die Verlegung ausführenden Handwerker.Thermal insulation elements are laid on flat roofs and sloping roofs. The material thicknesses of the thermal insulation elements laid on flat roofs and sloping roofs have increased continuously as a result of legal requirements. These requirements serve to save heating energy. The current level of the required thermal insulation is defined by a heat transmission coefficient k D ≤ 0.30 W / m 2 K. For reasons of noise protection and especially due to their non-combustibility, mineral wool insulation materials are predominantly installed on flat or sloping roofs. These mineral wool insulation materials are mainly applied to load-bearing roof shells, which mostly consist of profiled sheets for cost reasons. The insulation materials must have sufficient flexural tensile strength so that they can bridge the clear widths between the upper chords of the profiled sheets or are sufficiently load-bearing when cantilevered over an upper chord. In order to meet the requirements of DIN 18165, Part 1, the mineral wool insulation materials have bulk densities of more than 120 kg / m 3 , with an average of approx. 145 kg / m 3 being achieved. With an insulation material thickness of more than 13 cm, the basis weight is therefore more than 18.9 kg / m 2 . The use of large format elements with dimensions of 2 mx 1.2 m thus leads to a weight of more than 45 kg per element. Due to their weight, such elements lead to considerable loads on the craftsmen carrying out the laying.

Um die Verlegung von Wärmedämmelementen auf Flachdächern und flachgeneigten Dächern zu vereinfachen ist es bekannt, die Wärmedämmelemente in zwei Lagen zu verlegen. Diese Vorgehensweise hat aber den Nachteil, daß sie einen höheren Zeitaufwand bedarf und somit die Dachkonstruktion wesentlich verteuert. Weiterhin ist es nachteilig, daß bei dieser Vorgehensweise die Dicken der beiden Lagen nicht ausreicht, um die lichten Weiten zwischen den Obergurten sicher zu überbrücken. Hierbei ist darauf hinzuweisen, daß in den Flachdachrichtlinien Mindestdicken festgelegt sind. Für die in der Regel eingesetzten Großprofile mit einer lichten Weite zwischen den Obergurten von mehr als 150 mm beträgt die Mindestdicke der tragfähigen Mineralwolle-Dämmschicht 120 mm.To lay thermal insulation elements on flat roofs and It is known to simplify flat-pitched roofs Thermal insulation elements to be laid in two layers. This approach has but the disadvantage that it requires more time and thus the Roof construction significantly more expensive. It is also disadvantageous that at this approach the thicknesses of the two layers are not sufficient to to safely bridge clear spaces between the upper chords. Here is to point out that minimum thicknesses are specified in the flat roof guidelines are. For the large profiles usually used with a clear width the minimum thickness between the top chords of more than 150 mm is load-bearing mineral wool insulation layer 120 mm.

Darüber hinaus ist es nachteilig, daß das lose Aufeinanderlegen mehrerer Dämmstoffplatten bzw. -elemente nicht dazu führt, daß die erforderliche Biegefestigkeit erreicht wird.In addition, it is disadvantageous that the loose stacking of several Insulation panels or elements do not result in the required Flexural strength is achieved.

Alternativ zu der voranstehend beschriebenen Vorgehensweise ist es bekannt, anstelle der relativ schweren Mineralwolle-Dämmstoffplatten Hartschaumplatten aus expandiertem oder extrudiertem Polystyrol, Polyurethan oder Phenolharzschaum einzusetzen. Zwar weisen diese Hartschaumplatten lediglich Rohdichten von 15 bis 20 kg/m3 auf, jedoch sind diese Platten brennbar und neigen unter dem Einfluß von hohen Temperaturen in dem Bauteil zu Formänderungen, wie irreversiblem Schrumpfen oder Schüsseln.As an alternative to the procedure described above, it is known to use rigid foam panels made of expanded or extruded polystyrene, polyurethane or phenolic resin foam instead of the relatively heavy mineral wool insulation panels. Although these rigid foam panels only have bulk densities of 15 to 20 kg / m 3 , these panels are combustible and, under the influence of high temperatures in the component, tend to change shape, such as irreversible shrinkage or bowls.

Ausgehend von diesem Stand der Technik liegt der Erfindung die Aufgabe zugrunde, ein ausreichend stabiles, insbesondere trittfestes Wärmedämmelement für die Dämmung von Flachdächern und flachgeneigten Dächern zu schaffen, welches aufgrund einer geringen Rohdichte selbst bei großformatigen Elementen in einfacher Weise handhabbar ist und die Anforderungen hinsichtlich der Nichtbrennbarkeit erfüllt.Based on this prior art, the invention has for its object to provide a sufficiently stable, in particular tread-resistant thermal insulation element for the insulation of flat roofs and flat-pitched roofs, which is easy to handle due to a low bulk density even with large-sized elements and the requirements in terms of Non-flammability met.

Die Lösung dieser Aufgabe sieht ein Wärmedämmelement vor, welches aus einer Kernplatte mit zwei großen Oberflächen und auf den großen Oberflächen angeordneten Deckschichten aus Mineralwollfasern besteht, wobei die Kernplatte aus einem Material besteht, dessen Rohdichte geringer ist, als die Rohdichte jeder Deckschicht und wobei die Deckschichten in Richtung der Flächennormalen der großen Oberflächen druckfest sind.The solution to this problem is provided by a thermal insulation element which consists of a core plate with two large surfaces and top layers of mineral wool fibers arranged on the large surfaces, the core plate consisting of a material whose bulk density is lower than the bulk density of each top layer and the top layers are pressure-resistant in the direction of the surface normal of the large surfaces.

Ein derart ausgebildetes Wärmedämmelement hat den Vorteil, daß durch die Verwendung einer relativ leichten Kernplatte in Verbindung mit zwei druckfesten und feuerresistenten Deckschichten Elemente mit relativ geringem Gewicht geschaffen werden, die demzufolge in einfacher Weise handhabbar sind, so daß auf das Verlegen von mehreren Schichten verzichtet werden kann. Das erfindungsgemäße Wärmedämmelement eignet sich demzufolge für eine Eindeckung eines Flachdaches bzw. eines flachgeneigten Daches mit ausreichend großen Elementen, die eine schnelle Eindeckung, d.h. in kurzen Zeiträumen ermöglicht, so daß auch die Anforderungen hinsichtlich der Überbrückung der Obergurte erfüllt wird.Such a thermal insulation element has the advantage that Use a relatively light core plate in combination with two pressure-resistant and fire-resistant cover layers elements with relatively low Weight are created, which is therefore easy to handle are, so that the laying of several layers can be dispensed with. The thermal insulation element according to the invention is therefore suitable for a Covering a flat roof or a flat-pitched roof with sufficiently large elements that allow rapid covering, i.e. in short Periods allowed, so that the requirements in terms of Bridging the top chords is fulfilled.

Nach einem weiteren Merkmal der Erfindung ist vorgesehen, daß die Kernplatte aus einem Hartschaum, wie beispielsweise expandiertem oder extrudiertem Polystyrol, Polyurethan oder Phenolharzschaum besteht. Diese Materialien weisen eine Rohdichte zwischen 10 und 30 kg/m3, vorzugsweise zwischen 15 und 20 kg/m3 auf Eine 8 cm dicke Kernplatte mit den Abmessungen 2 m x 1,2 m und einer Rohdichte von 30 kg/m3 wiegt dann demzufolge 5,76 kg und ist selbst mit aufgebrachten Deckschichten in einfacher Weise handhabbar, wobei die Deckschichten die notwendige Druckfestigkeit und Feuerbeständigkeit des Wärmedämmelementes bereitstellen.According to a further feature of the invention it is provided that the core plate consists of a rigid foam, such as expanded or extruded polystyrene, polyurethane or phenolic resin foam. These materials have a bulk density between 10 and 30 kg / m 3 , preferably between 15 and 20 kg / m 3. An 8 cm thick core plate with the dimensions 2 mx 1.2 m and a bulk density of 30 kg / m 3 then weighs accordingly 5.76 kg and is easy to handle, even with applied top layers, the top layers providing the necessary pressure resistance and fire resistance of the thermal insulation element.

Die Deckschichten sind vorzugsweise kraftschlüssig mit der Kernplatte verbunden, wobei sich das Verkleben der Deckschichten mit der Kernplatte als vorteilhaft erwiesen hat. The cover layers are preferably non-positively with the core plate connected, whereby the gluing of the cover layers to the core plate as has proven advantageous.

Weiterhin ist vorgesehen, daß die Deckschichten Fasern aufweisen, die überwiegend rechtwinklig zu den großen Oberflächen der Kernplatte ausgerichtet sind. Hierbei verhindert die Kernplatte aus Hartschaum, daß die Platten über dem Hohlraum zwischen den Obergurten der Profilbleche beim Begehen oder sonstigen Belastungen gestanzt werden. Die erfindungsgemäße Anordnung der Fasern in den Deckschichten führt zu einer höheren Druckfestigkeit oder erlaubt es bei vorgegebener Druckfestigkeit die Rohdichte der Mineralwolle-Dämmplatten als Deckschichten zu senken, wodurch sich erhebliche Kostenreduzierungen bei der Herstellung entsprechender Wärmedämmelemente realisieren lassen.It is further provided that the cover layers have fibers that predominantly at right angles to the large surfaces of the core plate are aligned. The hard foam core plate prevents the Sheets over the cavity between the upper chords of the profile sheets when Commit or other stresses are punched. The invention Arrangement of the fibers in the cover layers leads to a higher one Compressive strength or allows the bulk density for a given compressive strength of the mineral wool insulation boards as top layers, thereby reducing considerable cost reductions in the production of corresponding Have thermal insulation elements implemented.

Nach einem weiteren Merkmal der Erfindung ist vorgesehen, daß die Deckschichten zumindest 2 cm, vorzugsweise 3 cm dick sind, so daß ein wirksamer Schutz gegen einen Brandangriff von oben - Flugfeuer und strahlende Wärme - als auch bei einem Brandangriff von unten erzielt wird. Mit derart ausgebildeten Deckschichten kann sowohl eine unmittelbare Entflammung als auch das Inbrandsetzen verhindert bzw. deutlich verzögert werden. Weiterhin kann durch die thermische Entkopplung der Deckschichten aus Mineralwollefasern von der Kernplatte aus Hartschaum die thermisch bedingte irreversible Fomänderung des Hartschaums aus expandiertem Polystyrol deutlich verringert bzw. verhindert werden.According to a further feature of the invention it is provided that the Cover layers are at least 2 cm, preferably 3 cm thick, so that a effective protection against fire from above - flying flames and radiant heat - as is achieved in the event of a fire attack from below. With such cover layers can be both immediate Inflammation as well as the start of fire prevented or significantly delayed become. Furthermore, the thermal decoupling of the cover layers made of mineral wool fibers from the core plate made of rigid foam which is thermal conditional irreversible change in shape of the rigid foam from expanded Polystyrene can be significantly reduced or prevented.

Vorzugsweise stehen die Deckschichten seitlich geringfühig über die Kernplatte hervor. Es hat sich in der Praxis als vorteilhaft erwiesen, den Überstand der Deckschichten in einem Bereich zwischen 2 und 5 mm auszubilden. Insbesondere in Kombination mit der zu den großen Oberflächen rechtwinkligen Anordnung der Fasern der Deckschichten ergibt sich der Vorteil, da der Überstand der Deckschichten relativ kompressibel ist, eine fugendichte Verlegung der Wärmedämmelemente zu ermöglichen. The cover layers are preferably slightly laterally above the core plate forth. In practice, the supernatant of the Form cover layers in a range between 2 and 5 mm. Especially in combination with the large surfaces right-angled arrangement of the fibers of the outer layers gives the advantage since the overlap of the cover layers is relatively compressible, a joint-tight To allow laying of the thermal insulation elements.

Weitere Merkmale und Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung der zugehörigen Zeichnung, in der eine bevorzugte Ausführungsform des erfindungsgemäßen Wärmedämmelementes dargestellt ist.Further features and advantages of the invention result from the following Description of the accompanying drawings in which a preferred embodiment of the thermal insulation element according to the invention is shown.

Die Zeichnung zeigt ein Wärmedämmelement 1 für die Dämmung von Flachdächern und flachgeneigten Dächern. Das Wärmedämmelement 1 besteht aus einer Kernplatte 2, die zwei große Oberflächen 3 und 4 aufweist. Die großen Oberflächen 3 und 4 verlaufen parallel zueinander.The drawing shows a thermal insulation element 1 for the insulation of Flat roofs and pitched roofs. The thermal insulation element 1 consists of a core plate 2, which has two large surfaces 3 and 4. The large surfaces 3 and 4 run parallel to one another.

Auf jeder großen Oberflächen 3 und 4 ist eine Deckschicht 5 angeordnet. Die Deckschichten 5 bestehen aus Mineralwolledämmstoffplatten, die aus einzelnen Fasern in ansich bekannter Weise hergestellt sind. Die Fasern sind in der Zeichnung durch die Bezugsziffer 6 angedeutet und verlaufen im wesentlichen rechtwinklig zu den großen Oberflächen 3, 4 der Kernplatte 2.A covering layer 5 is arranged on each large surface 3 and 4. The Cover layers 5 consist of mineral wool insulation panels, which individual fibers are produced in a manner known per se. The fibers are in the drawing indicated by the reference number 6 and run in substantially perpendicular to the large surfaces 3, 4 of the core plate 2.

Die Kernplatte 2 besteht aus einem Hartschaum, wie beispielsweise expandiertem oder extrudiertem Polystyrol, Polyurethan oder Phenolharzschaum. Die großen Oberflächen 3, 4 der Kernplatte 2 sind mit den Deckschichten 5 verklebt.The core plate 2 consists of a rigid foam, such as expanded or extruded polystyrene, polyurethane or Phenolic resin foam. The large surfaces 3, 4 of the core plate 2 are with the Cover layers 5 glued.

Es ist ferner zu erkennen, daß die Deckschichten 5 seitlich geringfügig über die Kernplatte 2 hervorstehen, wobei die parallel ausgerichteten Fasern eine Flexibilität der Deckschichten 5 parallel zu den großen Oberflächen 3, 4 der Kernplatte 2 erlauben, wohingegen die Deckschichten 5 parallel zur Flächennormalen der Oberflächen 3, 4 eine hohe Druckfestigkeit haben.It can also be seen that the cover layers 5 laterally slightly over the The core plate 2 protrude, with the fibers aligned in parallel Flexibility of the cover layers 5 parallel to the large surfaces 3, 4 of the Allow core plate 2, whereas the cover layers 5 parallel to Surface normals of the surfaces 3, 4 have a high compressive strength.

Ein voranstehend beschriebenes Wärmedämmelement 1 kann beispielsweise aus einer Polystyrol-Hartschaumplatte als Kernplatte 2 mit einer Materialstärke von 8 cm und einer Rohdichte von 20 kg/m3 bestehen. Auf diese Kernplatte 2 sind zwei Deckschichten von jeweils 3 cm Materialstärke aus Mineralwolle-Dämmplatten aufgebracht, die eine Rohdichte von 150 kg/m3 aufweisen. Die Deckschichten 5 werden mit einem Kleber auf die Kernplatte 2 aufgeklebt, der ein Gewicht von 1 kg/m2 aufweist. Ein derartiges Wärmedämmelement 1 hat ein Flächengewicht von 11,6 kg/m2. Im Vergleich zu einer üblichen Mineratwolle-Dämmplatte mit einem üblichen Flächengewicht von 20,6 kg/m2 ergibt sich eine 43 %ige Gewichtsverminderung, die eine wesentliche Handhabungsvereinfachung bedeutet.A thermal insulation element 1 described above can consist, for example, of a polystyrene rigid foam plate as the core plate 2 with a material thickness of 8 cm and a bulk density of 20 kg / m 3 . On this core plate 2 two cover layers of 3 cm material thickness are applied from mineral wool insulation boards, which have a bulk density of 150 kg / m 3 . The cover layers 5 are glued to the core plate 2 with an adhesive which has a weight of 1 kg / m 2 . Such a thermal insulation element 1 has a weight per unit area of 11.6 kg / m 2 . Compared to a conventional mineral wool insulation board with a normal basis weight of 20.6 kg / m 2 , there is a 43% weight reduction, which means a significant simplification of handling.

Claims (9)

Wärmedämmelement für die Dämmung von Flachdächern und flachgeneigten Dächern, bestehend aus einer Kernplatte (2) mit zwei großen Oberflächen (4, 5), und auf den großen Oberflächen (4, 5) angeordneten Deckschichten (5) aus Mineralwollefasern, wobei die Kernplatte (2) aus einem Material besteht, dessen Rohdichte geringer ist, als die Rohdichte jeder Deckschicht (5) und wobei die Deckschichten (5) in Richtung der Flächennormalen der großen Oberflächen (3, 4) druckfest sind.Thermal insulation element for the insulation of flat roofs and flat-pitched roofs, consisting of a core plate (2) with two large ones Surfaces (4, 5), and arranged on the large surfaces (4, 5) Cover layers (5) made of mineral wool fibers, the core plate (2) a material whose bulk density is lower than the bulk density each cover layer (5) and wherein the cover layers (5) in the direction of Surface normals of the large surfaces (3, 4) are pressure-resistant. Wärmedämmelement nach Anspruch 1,
dadurch gekennzeichnet,
daß die Kernplatte (2) aus einem Hartschaum, wie beispielsweise expandiertem oder extrudiertem Polystyrol, Polyurethan oder Phenolharzschaum besteht.Thermal insulation element according to claim 1,
characterized,
that the core plate (2) consists of a rigid foam, such as expanded or extruded polystyrene, polyurethane or phenolic resin foam. Wärmedämmelement nach Anspruch 2,
dadurch gekennzeichnet,
daß die Kernplatte (2) eine Rohdichte zwischen 10 und 30 kg/m3, vorzugsweise zwischen 15 und 20 kg/m3 aufweist.Thermal insulation element according to claim 2,
characterized,
that the core plate (2) has a bulk density between 10 and 30 kg / m 3 , preferably between 15 and 20 kg / m 3 . Wärmedämmelement nach Anspruch 1,
dadurch gekennzeichnet,
daß die Deckschichten (5) kraftschlüssig mit der Kernplatte (2) verbunden, insbesondere verklebt sind.Thermal insulation element according to claim 1,
characterized,
that the cover layers (5) are non-positively connected to the core plate (2), in particular glued. Wärmedämmelement nach Anspruch 1,
dadurch gekennzeichnet,
daß die Deckschichten (5) Fasern (6) aufweisen, die überwiegend rechtwinklig zu den großen Oberflächen (3, 4) der Kernplatte (2) ausgerichtet sind.Thermal insulation element according to claim 1,
characterized,
that the cover layers (5) have fibers (6) which are oriented predominantly at right angles to the large surfaces (3, 4) of the core plate (2). Wärmedämmelement nach Anspruch 1,
dadurch gekennzeichnet,
daß die Deckschichten (5) zumindest 2 cm, vorzugsweise 3 cm dick sind.Thermal insulation element according to claim 1,
characterized,
that the cover layers (5) are at least 2 cm, preferably 3 cm thick. Wärmedämmelement nach Anspruch 1,
dadurch gekennzeichnet,
daß die Deckschichten (5) seitlich geringfügig über die Kernplatte (2) hervorstehen.Thermal insulation element according to claim 1,
characterized,
that the cover layers (5) protrude slightly over the side of the core plate (2). Wärmedämmelement nach Anspruch 7,
dadurch gekennzeichnet,
daß die Deckschichten (5) zumindest in ihrem Randbereich parallel zu den großen Oberflächen (3, 4) flexibel sind.Thermal insulation element according to claim 7,
characterized,
that the cover layers (5) are flexible at least in their edge area parallel to the large surfaces (3, 4). Wärmedämmelement nach Anspruch 7,
dadurch gekennzeichnet,
daß die Deckschichten (5) 2 bis 5 mm über den Rand der Kernplatte (2) überstehen.Thermal insulation element according to claim 7,
characterized,
that the cover layers (5) protrude 2 to 5 mm beyond the edge of the core plate (2).
EP99108797A 1998-05-16 1999-05-03 Heat insulation element Expired - Lifetime EP0959190B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29808924U 1998-05-16
DE29808924U DE29808924U1 (en) 1998-05-16 1998-05-16 Thermal insulation element

Publications (3)

Publication Number Publication Date
EP0959190A2 true EP0959190A2 (en) 1999-11-24
EP0959190A3 EP0959190A3 (en) 2000-02-23
EP0959190B1 EP0959190B1 (en) 2005-09-07

Family

ID=8057304

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99108797A Expired - Lifetime EP0959190B1 (en) 1998-05-16 1999-05-03 Heat insulation element

Country Status (4)

Country Link
EP (1) EP0959190B1 (en)
AT (1) ATE304091T1 (en)
DE (2) DE29808924U1 (en)
DK (1) DK0959190T3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014102713A1 (en) * 2012-12-31 2014-07-03 Rockwool International A/S Rigid insulating panel

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10104737A1 (en) * 2001-02-02 2002-09-12 Rommersbach Carmen Structural plate for light engineering has inner core layer with outer cover layers having integrated mineral fibre plates as fire protection layers
PL204114B1 (en) † 2001-06-02 2009-12-31 Rockwool Mineralwolle Flat or flat inclined roof construction and associated insulating element
DE10261988B4 (en) * 2002-07-19 2007-01-25 Deutsche Rockwool Mineralwoll Gmbh + Co Ohg Insulating layer of mineral fibers
EP2136010A1 (en) * 2008-06-17 2009-12-23 Rockwool International A/S A building system for a building structure

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE755178A (en) * 1969-09-04 1971-02-01 Weinsheim Gmbh Chem Werke PREFABRICATED COVERING ELEMENT FOR FLAT ROOFS
DK3693D0 (en) * 1993-01-14 1993-01-14 Rockwool Int A METHOD OF PRODUCING A MINERAL FIBER INSULATING WEB, A PLANT FOR PRODUCING A MINERAL FIBER WEB, AND A MINERAL FIBER INSULATED PLATE
BE1009158A6 (en) * 1995-02-24 1996-12-03 Cospi Naamloze Vennootschap Connection element for insulating panels.
NL1002686C2 (en) * 1996-03-22 1997-09-23 Isobouw Systems Bv Assembly for forming a roof and roof element for such an assembly.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014102713A1 (en) * 2012-12-31 2014-07-03 Rockwool International A/S Rigid insulating panel

Also Published As

Publication number Publication date
DE59912514D1 (en) 2005-10-13
EP0959190B1 (en) 2005-09-07
DK0959190T3 (en) 2006-01-16
EP0959190A3 (en) 2000-02-23
DE29808924U1 (en) 1998-09-03
ATE304091T1 (en) 2005-09-15

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