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EP0169308A2 - Synthetic underroof membrane - Google Patents

Synthetic underroof membrane Download PDF

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Publication number
EP0169308A2
EP0169308A2 EP85103831A EP85103831A EP0169308A2 EP 0169308 A2 EP0169308 A2 EP 0169308A2 EP 85103831 A EP85103831 A EP 85103831A EP 85103831 A EP85103831 A EP 85103831A EP 0169308 A2 EP0169308 A2 EP 0169308A2
Authority
EP
European Patent Office
Prior art keywords
rafters
roof
film
thermal insulation
layer
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
EP85103831A
Other languages
German (de)
French (fr)
Other versions
EP0169308A3 (en
EP0169308B1 (en
Inventor
Dieter Dipl.-Ing. Jablonka
Klaus Dipl.-Ing. Urban
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.)
Ewald Dorken & Co KG GmbH
EWALD DORKEN GmbH and Co KG
Original Assignee
Ewald Dorken & Co KG GmbH
EWALD DORKEN GmbH and Co KG
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 Ewald Dorken & Co KG GmbH, EWALD DORKEN GmbH and Co KG filed Critical Ewald Dorken & Co KG GmbH
Priority to AT85103831T priority Critical patent/ATE44066T1/en
Publication of EP0169308A2 publication Critical patent/EP0169308A2/en
Publication of EP0169308A3 publication Critical patent/EP0169308A3/en
Application granted granted Critical
Publication of EP0169308B1 publication Critical patent/EP0169308B1/en
Expired legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D12/00—Non-structural supports for roofing materials, e.g. battens, boards
    • E04D12/002—Sheets of flexible material, e.g. roofing tile underlay

Definitions

  • the invention relates to a plastic roof membrane in sheet form for pitched roofs and the like, the roof consisting of beams and rafters, arranged between the rafters thermal insulation material, the rafters and the thermal insulation material by a vapor barrier on the roof inside and the rafters through the roof membrane on the outside of the roof are covered, on which a counter battens with formation of a ventilation space and a roof battens is arranged, which serves as a support for the roof covering.
  • a known underlayment is formed from a PE film.
  • This well-known roofing membrane is used to protect the roof construction parts underneath and the rooms in the loft conversion from drifting snow, rain, dust and soot.
  • the function of this sarking membrane depends largely on the ventilation of the roof working properly.
  • the ventilation of the roof is of increasing importance, because roof spaces are increasingly being expanded for residential purposes and this results in more usage moisture and new building moisture, which is also driven out by more powerful heating systems.
  • Thin aluminum foils are often used as a vapor barrier
  • the planners and structural engineers would have to provide a higher rafter and thus a larger free cross-section so that there is still room for ventilation.
  • the planner especially in the eaves area, would have to provide supply air openings.
  • the perforation has the disadvantage that dripping water can enter capillary from the outside, as a result of which the desired effect cannot be achieved.
  • the water-repellent finish protects the construction parts and the rooms underneath from thawing snow and rain, as well as dust and soot, while the water vapor permeability of the material also enables a vapor pressure equalization between inside and outside.
  • Such a sarking membrane should therefore also allow direct laying on the thermal insulation.
  • the invention has for its object to provide a sarking membrane of the type mentioned, which is so open to diffusion that ventilation is unnecessary, even if the vapor barrier is insufficiently provided, which can be placed directly on the insulation and thus the entire Rafter height usable for thermal insulation, which is also designed so that it is subject to shock loads, for example when driving out the new building moisture, largely prevents the formation of dripping water or the like, and which, with a significantly lower use of material, namely fleece and coating, has high strength and enables large-scale production.
  • the invention proposes that the sarking membrane consists of a polyurethane film which is covered on one side, in the installed position on the inside of the building, with a non-woven layer which is intimately connected to the polyurethane film and is largely exposed on the side facing away from it.
  • the term "largely exposed” is to be understood so that the nonwoven layer is not completely embedded in the PU film, but the PU film only rests on one side of the nonwoven.
  • the inventive combination of a water vapor permeable pole y urethane with a building side inner fabric layer is achieved a certain buffering effect, which makes it possible to receive even when impact loads of water vapor in sufficient degree and to store temporarily, without that this excess of water vapor condenses.
  • the fleece layer thus represents a moisture accumulator that is shielded from the outside by a waterproof but extremely vapor-permeable coating.
  • this sarking membrane according to the invention can also be placed directly on the thermal insulation, it still being irrelevant whether the vapor barrier is provided properly or at all.
  • a particular advantage of the underlayment according to the invention can also be seen in the fact that the fleece layer serves as a carrier for the film-like PU coating, as a result of which an extremely small dimensioning of the thickness of the PU film layer and the fleece layer is possible, which is advantageous for reasons of material costs.
  • Advantageous further developments are described in the subclaims.
  • the PU film layer By integrating the network, it is possible to make the PU film layer so thin that it can only be designed for its function with regard to external shielding and water vapor permeability, while the fleece layer is also only to be designed for its desired storage volume.
  • the network practically takes on the supporting function of this combined roofing membrane.
  • the underlay 1 consists of a polyurethane film 2, a mesh 3 made of plastic and a nonwoven layer 4, for example a random fiber fleece. In the installed position, the fleece layer 3 is arranged on the inside of the building.
  • the PU film 2 is applied on one side to a nonwoven layer 4 by extrusion and is connected to it in a material-locking manner and without connecting aids.
  • the mesh 3 is arranged between the PU film 2 and the fleece layer 4. During manufacture, the mesh 3 and the PU film 2 are placed on the thin fleece layer 4 extruded onto this layer, whereby it forms an intimate connection with the fleece layer 4 and the network 3 is held by the connected layers 2 and 4.
  • the thin PU film 2 is permeable to water vapor, but impermeable to solids and liquids.
  • the fleece layer 4 serves as a liquid store for liquid which temporarily condenses out of the water vapor, which is stored by the fleece layer 4 and is slowly released through the PU film 2 until a vapor pressure equalization is achieved.
  • the fleece layer 4 can be dimensioned to be thinner or thicker in accordance with its desired storage capacity.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)
  • Prostheses (AREA)
  • Laminated Bodies (AREA)
  • Tents Or Canopies (AREA)

Abstract

1. Roof lining made of synthetic sheeting for high pitched roofs and similar constructions, roof consisting of joists and rafters with insulating material between the rafters, rafters and insulating material covered with vapour trap sheeting on the inside of the roof, and on the outside of the roof rafters covered with the roof lining on which lateral rafters are fixed forming space for ventilation and finally rafters to carry the roofing tiles, characterized in that the roof lining (1) is made of polyurethane sheeting (2) coated on the side facing inside the building with bonded fabric (4), wich is closely attached to the polyurethane sheeting (2), the other side of wich is exposed as far as possible.

Description

Die Erfindung betrifft eine Unterspannbahn aus Kunststoff in Folienform für Steildächer und dergleichen, wobei das Dach aus Balken und Sparren besteht, zwischen den Sparren Wärmedämmaterial angeordnet ist, auf der Dachinnenseite die Sparren und das Wärmedämmaterial durch eine Dampfbremse und auf der Dachaußenseite die Sparren durch die Unterspannbahn abgedeckt sind, auf welcher eine Konterlattung unter Bildung ines Belüftungsraumes sowie eine Dachlattung angeordnet ist, welche als Träger der Dacheindeckung dient. Eine bekannte Unterspannbahn ist aus einer PE-Folie gebildet.The invention relates to a plastic roof membrane in sheet form for pitched roofs and the like, the roof consisting of beams and rafters, arranged between the rafters thermal insulation material, the rafters and the thermal insulation material by a vapor barrier on the roof inside and the rafters through the roof membrane on the outside of the roof are covered, on which a counter battens with formation of a ventilation space and a roof battens is arranged, which serves as a support for the roof covering. A known underlayment is formed from a PE film.

Diese bekannte Unterspannbahn dient dazu, die darunterliegenden Dachkonstruktionsteile und die im Dachausbau liegenden Räume vor eingetriebenem auftauendem Flugschnee, Regen sowie Staub und Ruß zu schützen. Die Funktion dieser Unterspannbahn hängt jedoch wesentlich davon ab, daß die Belüftung des Daches einwandfrei funktioniert.This well-known roofing membrane is used to protect the roof construction parts underneath and the rooms in the loft conversion from drifting snow, rain, dust and soot. The function of this sarking membrane, however, depends largely on the ventilation of the roof working properly.

Grundsätzlich ist die Belüftung des Daches von immer größerer Bedeutung, weil in zunehmendem Maße Dachräume zu Wohnzwecken ausgebaut werden und hierdurch mehr Nutzungsfeuchte und Neubaufeuchte entsteht, die zudem durch stärkere Heizungsanlagen ausgetrieben wird.Basically, the ventilation of the roof is of increasing importance, because roof spaces are increasingly being expanded for residential purposes and this results in more usage moisture and new building moisture, which is also driven out by more powerful heating systems.

Desweiteren werden immer dickere Wärmedämmungen vorgesehen, durch die leizte Wärmeschutzverordnung bis zu 16 cm.Furthermore, increasingly thicker thermal insulation is provided, up to 16 cm thanks to the low thermal insulation regulation.

Bei solchen Dicken ist praktisch der gesamte Sparrenquerschnitt mit Wärmedämmung ausgefüllt, so daß für die Belüftung zwischen der Wärmedämmung und der Unterspannbahn kein Freiraum mehr bleibt. Dies wäre zwar nicht von so wesentlicher Bedeutung, wenn die Dampf sperre bzw. Dampfbremse ihre Funktion immer erfüllen würde.At such thicknesses, practically the entire cross-section of the rafters is filled with thermal insulation so that there is no space left for ventilation between the thermal insulation and the underlay. This would not be so essential if the vapor barrier or vapor barrier would always fulfill its function.

Als Dampfsperre sind häufig dünne Alufolien aufThin aluminum foils are often used as a vapor barrier

Papier, auch einstückig mit der Wärmedämmung, vorgesehen. Die häufig unzulängliche Verarbeitung durch den Handwerker oder den selbstinstallierenden Heimwerker führt jedoch dazu, daß die Funktion garnicht oder nur unzureichend erfüllt werden kann, weil die dünne Alufolie durchstoßen oderPaper, also in one piece with the thermal insulation, is provided. However, the often inadequate processing by the craftsman or the self-installing handyman means that the function cannot be carried out at all or only inadequately because the thin aluminum foil pierces or

an den Stoßstellen nicht ordnungsgemäß überlappend verlegt ist.is not properly overlapped at the joints.

Sofern aber die Dampfsperre nicht ordnungsgemäß angebracht ist, ist die Belüftung zwischen Wärmedämmung und Unterspannbahn äußerst notwendig. Dies findet seinen Ausdruck auch in der neuen DIN 4108 sowie in den überarbeiteten Fachregeln des DDH.However, if the vapor barrier is not properly installed, ventilation between the insulation and the underlay is extremely necessary. This is also reflected in the new DIN 4108 and in the revised DDH rules.

Allerdings werden diese Regeln häufig aus Unkenntnis nicht beachtet.However, these rules are often ignored due to ignorance.

Es müßten nämlich die Planer und die Statiker schon einen höheren Sparren und damit einen größeren freien Querschnitt vorsehen, damit noch Platz für die Belüftung bleibt.The planners and structural engineers would have to provide a higher rafter and thus a larger free cross-section so that there is still room for ventilation.

Desweiteren müßte der Planer, besonders im Traufbereich, Zuluftöffnungen vorsehen.Furthermore, the planner, especially in the eaves area, would have to provide supply air openings.

In der REgel werden aber Ausmauerungen bis zur Oberkante der Sparren ausgeführt.In the RE rule, however, brickwork is carried out up to the top edge of the rafters.

Selbst wenn die Planung ordnungsgemäß abläuft, müßte der Baustellenleiter die Tätigkeit auch des letzten Handwerkers daraufhin überwachen, daß die Zuluftöffnungen nicht aus Unkenntnis von Putzern oder dergleichen wieder zugeputzt werden.Even if the planning is proceeding properly, the site manager would have to monitor the activity of even the last craftsman to ensure that the supply air openings are not plastered again due to ignorance by cleaners or the like.

Sofern die entsprechenden Zuluftöffnungen und der entsprechende Freiraum zwischen Dämmung und Unterspannbahn nicht vorgesehen ist, entsteht in der Wärmedämmung bzw. an der Unterspannbahn Kondenswasserbildung, die zur Durchfeuchtung der Wärmedämmung mit allen negativen Auswirkungen führt.If the corresponding supply air openings and the corresponding free space between the insulation and the underlay are not provided, condensation forms in the thermal insulation or on the underlay, which leads to the dampening of the thermal insulation with all negative effects.

Um diese bestehenden Nachteile zu vermeiden, ist schon vorgeschlagen worden, PE-Folien zu perforieren, damit sich in der Wärmedämmung bzw. unterhalb der Unterspannbahn bildende Feuchtigkeit nach außen austreten kann.In order to avoid these existing disadvantages, it has already been proposed to perforate PE films so that moisture forming in the thermal insulation or below the underlay can escape to the outside.

edoch hat die Perforation den Nachteil, daß Tropfwasser von außen kapillar eintreten kann, wodurch der gewünschte Effekt nicht erreichbar ist.However, the perforation has the disadvantage that dripping water can enter capillary from the outside, as a result of which the desired effect cannot be achieved.

Ein anderer Vorschlag geht dahin, die Unterspannbahn aus hochreißfestem Polyester-Spinnvlies mit einer wasserabweisenden und atmungsaktiven Spezialbeschichtung herzustellen. Dazu muß ein relativ dickes Vlies benutzt werden, da dieses Vlies für den Beschichtungsvorgang eine erhebliche Eigenstabilität aufweisen muß. Die Beschichtung mittels einer Paste ist ebenfalls von erheblicher Dicke, was hohen Materialeinsatz nach sich zieht.Another suggestion is to manufacture the underlay from high-tensile polyester spunbond with a water-repellent and breathable special coating. A relatively thick fleece must be used for this, as this Fleece for the coating process must have considerable inherent stability. The coating by means of a paste is also of considerable thickness, which results in a high use of materials.

Die wasserabweisende Ausrüstung schützt dabei die Konstruktionsteile und darunterliegende Räume vor auftauendem Flugschnee und Regen sowie Staub und Ruß, wobei zusätzlich durch die Wasserdampfdurchlässigkeit des Materials ein Dampfdruckausgleich zwischen innen und außen ermöglicht werden soll.The water-repellent finish protects the construction parts and the rooms underneath from thawing snow and rain, as well as dust and soot, while the water vapor permeability of the material also enables a vapor pressure equalization between inside and outside.

Eine derartige Unterspannbahn soll deshalb auch die unmittelbare Verlegung auf der Wärmedämmung ermöglichen.Such a sarking membrane should therefore also allow direct laying on the thermal insulation.

Hiervon ausgehend liegt der Erfindung die Aufgabe zugrunde, eine Unterspannbahn der eingangs bezeichneten Art zu schaffen, die so diffusionsoffen ist, daß eine Belüftung sich erübrigt, selbst wenn die Dampf sperre unzureichend vorgesehen ist, die unmittelbar auf die Wärmedämmung gelegt werden kann und somit die gesamte Sparrenhöhe für die Wärmedämmung nutzbar macht, die darüber hinaus so beschaffen ist, daß sie bei Stoßbelastungen, zum Beispiel beim Austreiben der Neubaufeuchte, die Bildung von Tropfwasser oder dergleichen weitestgehend verhindert, und die bei wesentlich geringerem Einsatz an Material, nämlich Vlies und Beschichtung, eine hohe Festigkeit besitzt und großtechnische Herstellung ermöglicht.Proceeding from this, the invention has for its object to provide a sarking membrane of the type mentioned, which is so open to diffusion that ventilation is unnecessary, even if the vapor barrier is insufficiently provided, which can be placed directly on the insulation and thus the entire Rafter height usable for thermal insulation, which is also designed so that it is subject to shock loads, for example when driving out the new building moisture, largely prevents the formation of dripping water or the like, and which, with a significantly lower use of material, namely fleece and coating, has high strength and enables large-scale production.

Zur Lösung dieser Aufgabe schlägt die Erfindung vor, daß die Unterspannbahn aus einer Polyurethanfolie besteht, die einseitig, in der Einbaulage gebäudeseitig innenliegend mit einer Vliesschicht belegt ist, die mit der Polyurethanfolie innig verbunden ist und auf der dieser abgewandten Seite weitestgehend freiliegt.To achieve this object, the invention proposes that the sarking membrane consists of a polyurethane film which is covered on one side, in the installed position on the inside of the building, with a non-woven layer which is intimately connected to the polyurethane film and is largely exposed on the side facing away from it.

Der Begriff "weitestgehend freiliegt" ist so zu verstehen, daß die Vliesschicht nicht vollständig in die PU-Folie eingebettet ist, sondern die PU-Folie nur einseitig auf dem Vlies aufliegt.The term "largely exposed" is to be understood so that the nonwoven layer is not completely embedded in the PU film, but the PU film only rests on one side of the nonwoven.

Durch die erfindungsgemäße Kombination einer wasserdampfdurchlässigen Polyurethanfolie mit einer bauseitig innenliegenden Vliesschicht wird eine gewisse Pufferwirkung erreicht, die es ermöglicht, auch bei Stoßbelastungen Wasserdampf in ausreichenden Maße aufzunehmen und vorübergehend zu speichern, ohne daß dieser Wasserdampfüberschuß auskondensiert.The inventive combination of a water vapor permeable pole y urethane with a building side inner fabric layer is achieved a certain buffering effect, which makes it possible to receive even when impact loads of water vapor in sufficient degree and to store temporarily, without that this excess of water vapor condenses.

Die Vliesschicht stellt also einen Feuchtigkeitsspeicher dar, der nach außen hin durch eine wasserdichte aber hervorragend dampfdurchlässige Beschichtung abgeschirmt ist. Überdies kann diese erfindungsgemäße Unterspannbahn auch unmittelbar auf die Wärmedämmung gelegt werden, wobei es weiterhin unerheblich ist, ob die Dampfsperre ordnungsgemäß oder überhaupt vorgesehen ist.The fleece layer thus represents a moisture accumulator that is shielded from the outside by a waterproof but extremely vapor-permeable coating. In addition, this sarking membrane according to the invention can also be placed directly on the thermal insulation, it still being irrelevant whether the vapor barrier is provided properly or at all.

Ein besonderer Vorteil der erfindungsgemäßen Unterspannbahn ist noch darin zu sehen, daß die Vliesschicht als Träger für die folienartige PU-Beschichtung dient, wodurch eine äußerst geringe Dickenbemessung der PU-Folienschicht und der Vliesschicht möglich ist, was aus Gründen der Materialkosten vorteilhaft ist. Vorteilhafte Weiterbildungen sind in den Unteransprüchen bezeichnet.A particular advantage of the underlayment according to the invention can also be seen in the fact that the fleece layer serves as a carrier for the film-like PU coating, as a result of which an extremely small dimensioning of the thickness of the PU film layer and the fleece layer is possible, which is advantageous for reasons of material costs. Advantageous further developments are described in the subclaims.

Durch die Einbindung des Netzes ist es möglich, die PU-Folienschicht so dünn auszubilden, daß diese nur ihre Funktion hinsichtlich der Abschirmung nach außen und der Wasserdampfdurchlässigkeit ausgelegt werden kann, während auch die Vliesschicht lediglich auf ihr gewünschtes Speichervolumen auszulegen ist.By integrating the network, it is possible to make the PU film layer so thin that it can only be designed for its function with regard to external shielding and water vapor permeability, while the fleece layer is also only to be designed for its desired storage volume.

Das Netz übernimmt praktisch die tragende Funktion dieser kombinierten Unterspannbahn.The network practically takes on the supporting function of this combined roofing membrane.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und im folgenden näher beschrieben.An embodiment of the invention is shown in the drawing and described in more detail below.

Es zeigt:

  • Fig. 1 eine Unterspannbahn als Ausschnitt in Ansicht;
  • Fig. 2 desgleichen im Schnitt II-II der Fig. l.
It shows:
  • Fig. 1 a sarking membrane as a detail in view;
  • Fig. 2 likewise in section II-II of Fig. L.

Die Unterspannbahn 1 besteht aus einer Polyurethanfolie 2, einem Netz 3 aus Kunststoff sowie einer Vliesschicht 4, beispielsweise einem Wirrfaservlies. In der Einbaulage ist die Vliesschicht 3 gebäudeinnenseitig angeordnet.The underlay 1 consists of a polyurethane film 2, a mesh 3 made of plastic and a nonwoven layer 4, for example a random fiber fleece. In the installed position, the fleece layer 3 is arranged on the inside of the building.

Die PU-Folie 2 ist einseitig auf eine Vliesschicht 4 im Wege des Extrudierens aufgebracht und mit dieser stoffschlüssig und ohne Verbindungshilfsmittel verbunden.The PU film 2 is applied on one side to a nonwoven layer 4 by extrusion and is connected to it in a material-locking manner and without connecting aids.

Das Netz 3 ist zwischen PU-Folie 2 und Vliesschicht 4 angeordnet. Bei der Fertigung wird auf die dünne Vliesschicht 4 das Netz 3 gelegt und die PU-Folie 2 auf diese Schicht extrudiert, wobei sie eine innige Verbindung mit der Vliesschicht 4 eingeht und das Netz 3 durch die verbundenen Schichten 2 und 4 gehalten ist.The mesh 3 is arranged between the PU film 2 and the fleece layer 4. During manufacture, the mesh 3 and the PU film 2 are placed on the thin fleece layer 4 extruded onto this layer, whereby it forms an intimate connection with the fleece layer 4 and the network 3 is held by the connected layers 2 and 4.

Die dünne PU-Folie 2 ist wasserdampfdurchlässig, aber feststoff- und flüssigkeitsundurchlässig.The thin PU film 2 is permeable to water vapor, but impermeable to solids and liquids.

Die Vliesschicht 4 dient als Flüssigkeitsspeicher für vorübergehend aus dem Wasserdampf auskondensierende Flüssigkeit, die von der Vliesschicht 4 gespeichert und langsam durch die PU-Folie 2 abgegeben wird bis ein Dampfdruckausgleich erreicht ist.The fleece layer 4 serves as a liquid store for liquid which temporarily condenses out of the water vapor, which is stored by the fleece layer 4 and is slowly released through the PU film 2 until a vapor pressure equalization is achieved.

Die Vliesschicht 4 kann entsprechend ihrer gewünschten Speicherkapazität dünner oder dicker bemessen sein.The fleece layer 4 can be dimensioned to be thinner or thicker in accordance with its desired storage capacity.

Claims (4)

1. Unterspannbahn aus Kunststoff in Folienform für Steildächer und dergleichen, wobei das Dach aus Balken und Sparren besteht, zwischen den Sparren Wärmedämmaterial angeordnet ist, auf der Dachinnenseite die Sparren und das Wärmedämmaterial durch eine Dampfsperrfolie und auf der Dachaußenseite die Sparren durch die Unterspannbahn abgedeckt sind, auf welcher eine Konterlattung unter Bildung eines Belüftungsraur.es sowie eine Dachlattung angeordnet ist, welche als Träger der Dacheindeckung dient, dadurch gekennzeichnet, daß die Unterspannbahn (1) aus einer Polyrethanfolie (2) besteht, die einseitig in der Einbaulage gebäudeseitig innenliegend mit einer Vliesschicht (4) belegt ist, die mit der Polyurethanfolie (2) innig verbunden ist und auf der dieser abgewandten Seite weitestgehend freiliegt.1. Plastic roofing membrane in film form for pitched roofs and the like, the roof consisting of beams and rafters, thermal insulation material is arranged between the rafters, the rafters and the thermal insulation material are covered by a vapor barrier film on the inside of the roof and the rafters are covered by the roofing membrane on the outside of the roof , on which a counter batten is formed to form a ventilation duct as well as a roof batten which serves as a support for the roof covering, characterized in that the underlayment (1) consists of a polyrethane film (2), which on the one side in the installation position is on the inside with a Fleece layer (4) is occupied, which is intimately connected to the polyurethane film (2) and is largely exposed on the side facing away from this. 2. Unterspannbahn nach Anspruch 1, dadurch gekennzeichnet, daß die PU-Folie (2) durch ein eingeformtes Netz (3) verstärkt ist.2. sarking membrane according to claim 1, characterized in that the PU film (2) is reinforced by a molded network (3). 3. Unterspannbahn nach Anspruch 1 und 2, dadurch gekennzeichnet, daß die PU-Folie (2) einseitig auf die Vliesschicht (4), z.B. ein PE-Vlies, aufgebracht und unter Einschließung des Netzes (3) aus Kunststoff, z.B. PE, zwischen PU-Folie (2) und Vliesschicht (4) mit dieser stoffschlüssig, verbindungsmittelfrei verbunden ist.3. sarking membrane according to claim 1 and 2, characterized in that the PU film (2) on one side on the non-woven layer (4), e.g. a PE fleece, applied and including the net (3) made of plastic, e.g. PE, between the PU film (2) and the nonwoven layer (4) is bonded to the latter in a cohesive, connector-free manner. 4. Unterspannbahn nach eir -m der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß das Gewicht der Unterspannbahn (1) ca. 100 g/m2 zuzüglich Netz (3) beträgt.4. sarking membrane according to eir -m of claims 1 to 3, characterized in that the weight of the sarking membrane (1) is approximately 100 g / m 2 plus network (3).
EP85103831A 1984-07-13 1985-03-29 Synthetic underroof membrane Expired EP0169308B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85103831T ATE44066T1 (en) 1984-07-13 1985-03-29 PLASTIC SURFACE RAILWAY.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3425794A DE3425794A1 (en) 1984-07-13 1984-07-13 PLASTIC UNDERLAYER
DE3425794 1984-07-13

Publications (3)

Publication Number Publication Date
EP0169308A2 true EP0169308A2 (en) 1986-01-29
EP0169308A3 EP0169308A3 (en) 1987-03-04
EP0169308B1 EP0169308B1 (en) 1989-06-14

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP85103831A Expired EP0169308B1 (en) 1984-07-13 1985-03-29 Synthetic underroof membrane

Country Status (3)

Country Link
EP (1) EP0169308B1 (en)
AT (1) ATE44066T1 (en)
DE (2) DE3425794A1 (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0570215A2 (en) † 1992-05-13 1993-11-18 DON & LOW (HOLDINGS) LIMITED Improvements in and relating to liquid impermeable and liquid vapour permeable laminates
EP0708212A1 (en) * 1994-10-20 1996-04-24 Ewald Dörken Ag Under-roof membrane, particularly suited for heat insulated sloping roofs
WO1996018781A1 (en) * 1994-12-12 1996-06-20 Klöber, Johannes Diffusion sheet, in particular in the form of a braced undersheetfor roofs
DE19504017A1 (en) * 1995-02-07 1996-08-08 Borries Horst Von Vapour-permeable building foil prodn., esp. for roof sarking
WO1996037668A1 (en) * 1995-05-22 1996-11-28 Akzo Nobel N.V. Air barrier and use thereof in roofs
WO1996037667A1 (en) * 1995-05-22 1996-11-28 Akzo Nobel N.V. Insulating subfloor web for roofs and its use
EP0767284A1 (en) * 1995-10-07 1997-04-09 Paul Bauder GmbH & Co. Vapor permeable substrate and underroof membrane
WO1997030244A3 (en) * 1996-02-13 1997-09-25 Peter Wirz Roof-lining material allowing diffusion and production method therefor
WO1999061720A1 (en) * 1998-05-26 1999-12-02 Klöber, Johannes Insulating system inserted in-between roof rafters
EP0874099A3 (en) * 1997-04-21 2001-02-21 Klöber, Johannes Diffusion sheet, in particular in the form of a braced undersheet for roofs
WO2007012463A1 (en) 2005-07-25 2007-02-01 Ewald Dörken Ag Method for the production of a web
DE102006000655A1 (en) * 2006-01-03 2007-07-05 Matthias Chachulski Roof structure for use in e.g. garage, has breathable unit e.g. foil, mounted in sections at distance from roof unit in such a manner that gap is formed, where gap is ventilated only by breathable unit that is permeable to water vapor
US8535786B2 (en) 2006-08-18 2013-09-17 Ewald Dorken Ag Web and adhesive strip
DE102012111168A1 (en) 2012-11-20 2014-05-22 Monier Roofing Components Gmbh Roof underlay with fabric strip grid

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DE3914041C1 (en) * 1989-04-28 1990-07-12 Paul Bauder Gmbh & Co, 7000 Stuttgart, De Under-trussing web used in roof constructions - has hydrophilic nonwoven laid on bottom of web and having carrier coated with bitumen on both sides
DE4008043A1 (en) * 1990-03-14 1991-09-19 Hoechst Ag TRAILER RAIL FOR ROOF TENSION RAILWAYS
EP0700779A3 (en) 1994-08-10 1996-06-26 Von Borries Horst Permeable sheets for construction and process for their manufacture
DE4442380A1 (en) 1994-11-29 1996-05-30 Wolff Walsrode Ag Waterproof and breathable fabrics made from resin mixtures of thermoplastic polyurethanes
DE29511308U1 (en) * 1995-07-13 1995-10-26 Christian Heinrich Sandler GmbH & Co. KG, 95126 Schwarzenbach a d Saale Breathable roof membrane
DE29602475U1 (en) * 1996-02-13 1996-04-18 Spielau, Paul, Dipl.-Chem. Dr., 53844 Troisdorf Diffusion-open roofing membrane
DE19725451A1 (en) * 1997-06-16 1998-12-24 Caplast Kunststoffverarbeitung Foamed plastic composite especially for use as underroof membrane
DE19819085A1 (en) 1998-04-29 1999-11-11 Braas Gmbh Waterproof, water vapor permeable flat material
DE10012997B4 (en) * 2000-03-16 2008-09-18 Metallhandelgesellschaft Wanzleben mbH - mewa-, Arrangement of a condensate absorption mat
DE102008033891A1 (en) 2008-07-18 2010-02-04 Ipt Gmbh & Co. Kg Roof substrate strip consists of strip-shaped base material made of polypropylene spunbonded nonwoven with a surface coating based on polyacrylate or pure acrylate, where the coating is subjected in two coating orders and/or in fluid form

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DE1945686A1 (en) * 1969-09-10 1971-03-18 Metallgesellschaft Ag Roofing membrane
DE3118468A1 (en) * 1981-05-09 1982-11-25 Fa.Hans Klöber, 5828 Ennepetal Arrangement on tile-covered roofs equipped with a sheet-like trussing web

Cited By (17)

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Publication number Priority date Publication date Assignee Title
EP0570215B2 (en) † 1992-05-13 2008-08-27 Don & Low Limited Use of improved liquid impermeable and liquid vapour permeable laminates as roofing underlay material
EP0570215A2 (en) † 1992-05-13 1993-11-18 DON & LOW (HOLDINGS) LIMITED Improvements in and relating to liquid impermeable and liquid vapour permeable laminates
EP0708212A1 (en) * 1994-10-20 1996-04-24 Ewald Dörken Ag Under-roof membrane, particularly suited for heat insulated sloping roofs
DE4437521A1 (en) * 1994-10-20 1996-04-25 Doerken Ewald Ag Roofing membrane, especially for pitched, thermally insulated roofs
WO1996018781A1 (en) * 1994-12-12 1996-06-20 Klöber, Johannes Diffusion sheet, in particular in the form of a braced undersheetfor roofs
DE19504017A1 (en) * 1995-02-07 1996-08-08 Borries Horst Von Vapour-permeable building foil prodn., esp. for roof sarking
WO1996037668A1 (en) * 1995-05-22 1996-11-28 Akzo Nobel N.V. Air barrier and use thereof in roofs
WO1996037667A1 (en) * 1995-05-22 1996-11-28 Akzo Nobel N.V. Insulating subfloor web for roofs and its use
EP0767284A1 (en) * 1995-10-07 1997-04-09 Paul Bauder GmbH & Co. Vapor permeable substrate and underroof membrane
WO1997030244A3 (en) * 1996-02-13 1997-09-25 Peter Wirz Roof-lining material allowing diffusion and production method therefor
EP0874099A3 (en) * 1997-04-21 2001-02-21 Klöber, Johannes Diffusion sheet, in particular in the form of a braced undersheet for roofs
WO1999061720A1 (en) * 1998-05-26 1999-12-02 Klöber, Johannes Insulating system inserted in-between roof rafters
WO2007012463A1 (en) 2005-07-25 2007-02-01 Ewald Dörken Ag Method for the production of a web
US8808481B2 (en) 2005-07-25 2014-08-19 Ewald Dorken Ag Method for the production of a web
DE102006000655A1 (en) * 2006-01-03 2007-07-05 Matthias Chachulski Roof structure for use in e.g. garage, has breathable unit e.g. foil, mounted in sections at distance from roof unit in such a manner that gap is formed, where gap is ventilated only by breathable unit that is permeable to water vapor
US8535786B2 (en) 2006-08-18 2013-09-17 Ewald Dorken Ag Web and adhesive strip
DE102012111168A1 (en) 2012-11-20 2014-05-22 Monier Roofing Components Gmbh Roof underlay with fabric strip grid

Also Published As

Publication number Publication date
EP0169308A3 (en) 1987-03-04
DE3425794A1 (en) 1986-01-23
DE3571057D1 (en) 1989-07-20
EP0169308B1 (en) 1989-06-14
ATE44066T1 (en) 1989-06-15

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