EP0172898A1 - Fire arrester path with moisture barrier. - Google Patents

Fire arrester path with moisture barrier.

Info

Publication number
EP0172898A1
EP0172898A1 EP85901366A EP85901366A EP0172898A1 EP 0172898 A1 EP0172898 A1 EP 0172898A1 EP 85901366 A EP85901366 A EP 85901366A EP 85901366 A EP85901366 A EP 85901366A EP 0172898 A1 EP0172898 A1 EP 0172898A1
Authority
EP
European Patent Office
Prior art keywords
fire protection
fire
sheet
water
aluminum foil
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
EP85901366A
Other languages
German (de)
French (fr)
Other versions
EP0172898B1 (en
Inventor
Bert Haushofer
Karl Serwane
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.)
Ruetgers Germany GmbH
Original Assignee
AUGUST WILHELM ANDERNACH KG
Andernach KG A W
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 AUGUST WILHELM ANDERNACH KG, Andernach KG A W filed Critical AUGUST WILHELM ANDERNACH KG
Priority to AT85901366T priority Critical patent/ATE30449T1/en
Publication of EP0172898A1 publication Critical patent/EP0172898A1/en
Application granted granted Critical
Publication of EP0172898B1 publication Critical patent/EP0172898B1/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D11/00—Roof covering, as far as not restricted to features covered by only one of groups E04D1/00 - E04D9/00; Roof covering in ways not provided for by groups E04D1/00 - E04D9/00, e.g. built-up roofs, elevated load-supporting roof coverings
    • E04D11/02—Build-up roofs, i.e. consisting of two or more layers bonded together in situ, at least one of the layers being of watertight composition
    • 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
    • E04B1/941—Building elements specially adapted therefor
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
    • E04D13/16—Insulating devices or arrangements in so far as the roof covering is concerned, e.g. characterised by the material or composition of the roof insulating material or its integration in the roof structure
    • E04D13/1606—Insulation of the roof covering characterised by its integration in the roof structure
    • E04D13/1643—Insulation of the roof covering characterised by its integration in the roof structure the roof structure being formed by load bearing corrugated sheets, e.g. profiled sheet metal roofs
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D5/00—Roof covering by making use of flexible material, e.g. supplied in roll form
    • E04D5/10—Roof covering by making use of flexible material, e.g. supplied in roll form by making use of compounded or laminated materials, e.g. metal foils or plastic films coated with bitumen
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/92—Fire or heat protection feature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/92—Fire or heat protection feature
    • Y10S428/921—Fire or flameproofing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31801—Of wax or waxy material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/654—Including a free metal or alloy constituent
    • Y10T442/656—Preformed metallic film or foil or sheet [film or foil or sheet had structural integrity prior to association with the nonwoven fabric]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/696—Including strand or fiber material which is stated to have specific attributes [e.g., heat or fire resistance, chemical or solvent resistance, high absorption for aqueous compositions, water solubility, heat shrinkability, etc.]

Definitions

  • the invention relates to a fire protection membrane with a vapor barrier for covering roof and wall surfaces and the like with a load-bearing membrane and a flame-retardant membrane made of a non-woven glass fiber and containing crystalline water.
  • fire protection membranes are attached to roof structures and membranes that are not "hard roofing” in the sense of DIN 4102 and are therefore not resistant to flight fire and radiant heat. With these fire protection membranes you can achieve the desired "hard roofing”.
  • the fire protection sheets are inserted between the insulation material and a top layer. They are mainly used for plastic films or high polymer webs. An example of a "hard roof” achieved in this way is described in DE-OS 3,220,821.
  • EPS means expanded polystyrene.
  • Poly styrene is a thermoplastic.
  • this synthetic foam is the ideal solution.
  • thermoplastics laid as insulation on steel profile sheets behave particularly favorably in the initial phase of a fire.
  • they sinter or melt and absorb heat.
  • the transfer of heat to the steel profile sheet is delayed. It is said that the temperature flows upwards. If the fire continues, however, the roof skin is subjected to greater stress. After the insulating material has burned away or disappeared, the temperature breaks down. If the fire lasts longer, the surface may burn through.
  • a melting thermoplastic or a non-melting material was used as the insulating material.
  • the object of the present invention is to develop a roofing membrane which forms both a fire protection membrane and a vapor barrier.
  • the fire protection sheet should be equipped so that in the event of a fire, burn-through from below until the steel profile sheet collapses is reliably prevented.
  • the solution to this problem according to the invention results from the fact that the load-bearing sheet is an aluminum foil, plastic foils are laminated onto both sides of the aluminum foil and have a content of crystalline water ⁇ pointing glass fiber fleece is laminated onto one of the plastic films and coated on its free surface with a wax layer.
  • the glass fiber fleece, which contains the crystal-bound water, is designed, for example, according to DE-OS 3 220 821.
  • This fire protection membrane with vapor barrier according to the invention is laid over the load-bearing roof structure, for example the steel profile sheet, and under the insulation membrane.
  • the wax layer applied to the free surface of the glass fiber fleece is water-repellent but permeable to water vapor. This ensures that the water bound in the glass fiber fleece or the fire protection agent is not flushed out during laying on the construction site. With this feature, sufficient moisture security is achieved for the laying time on the construction site.
  • the fire protection membrane according to the invention can and should be covered with additional membranes immediately after it has been laid.
  • the plastic film coated on the underside of the aluminum film is expediently made of polyester, while the plastic film laminated on the upper side consists of polyethylene.
  • the fire protection sheet according to the invention When the fire protection sheet according to the invention is laid on a profiled sheet, the profile spaces which are then left free can be partitioned off.
  • rods or cubes made of plastic foam can be inserted around them. These bars or cubes close the profiles or beads of the profile sheet. This prevents combustible gases, smoke and the like from continuing to flow and spread.
  • the rods or cubes consisting of a plastic foam are expediently impregnated with a fire protection agent.
  • the use of such rods or cubes made of plastic foam for closing the profile cavities or beads of the profile sheets is known per se. What is new, however, is the use of these cubes or rods in the fire protection membrane according to the invention. It is also new to treat or soak these cubes or rods with a fire protection agent. Instead of using plastic foam, the remaining profile cavities can also be sealed off with sand or gravel. This is simply poured into the profile cavities.
  • the branch protection sheet according to the invention has a high tear resistance. It can therefore be laid on steel profile sheets or steel trapezoidal sheets and over their beads. It is protected against corrosion by the thin polyethylene foils.
  • the fire protection membrane according to the invention can be stuck on with a bitumen cold adhesive which itself brings only few flammable components onto the roof. The overlaps between adjacent fire protection membranes can also be glued with a bitumen cold adhesive. In the case of special fire protection requirements, the fire protection membrane can also be nailed on. The entire layer package including the first layer of the roof skin is nailed on. In the event of a fire from below, the fire protection sheet on top releases about 200 g of water per square meter as a result of the water crystallized in the glass fiber fleece. This leads to larger amounts of water vapor. This water vapor fills the caverns of the thermoplastic material, which have resulted from the temperature radiation from below, so strongly with water vapor that burn-through is no longer possible.
  • the fire protection sheet according to the invention can, as stated, be laid directly on steel profile sheets, such as trapezoidal steel sheets. It can also be placed on other substructures in need of fire protection. It forms the vapor barrier necessary for building physics reasons and, at the same time, prevents burnout, as stated.
  • FIG. 1 is a perspective view, not to scale, of the fire protection sheet, the sheets being drawn broken for better understanding,
  • Fig. 2 on a different scale, a perspective view of the steel trapezoidal sheet used with inserted rods made of plastic foam and
  • FIG. 3 shows a representation corresponding to FIG. 2 with sand poured in. Description of an embodiment
  • Fig. 1 shows the steel profile sheet 12, which is a trapezoidal sheet.
  • the fire protection membrane according to the invention lies on this. This includes the aluminum foil 14 and the plastic foils 16 and 18 laminated on both sides thereof.
  • the glass fiber fleece 20 is laminated onto the plastic foil 16 lying on top. This is treated with a fire protection agent and / or enriched with crystalline water.
  • the cavities or beads of the trapezoidal sheet 12 are designated by 24.
  • cubes or rods 26 made of plastic foam lie in these beads.
  • These rods can also be treated with a fire protection agent or contain crystalline water. As stated, they prevent smoke and combustible gas from flowing through the beads 24 in the event of a fire and thus being distributed in the building and the roof structure. 3, small piles 28 of gravel or sand are filled into the beads.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Building Environments (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
  • Laminated Bodies (AREA)
  • Panels For Use In Building Construction (AREA)

Abstract

La voie pare-feu est posée en plus des voies de toit et d'isolation habituelles sur un pan de toit. Elle doit empêcher le développement d'incendies en nappe ou au moins les retarder. Elle doit former simultanément une barrière de vapeur. A cet effet, elle contient deux feuilles de plastique entourant une feuille d'aluminium servant de voie porteuse. Un non-tissé de fibre de verre avec une certaine teneur en eau à liaison cristalline est contre-plaqué sur une feuille de plastique. L'eau se vaporise en cas d'incendie. La vapeur d'eau qui en résulte empêche ou retarde un incendie en nappe ou un incendie total.The firewall is laid in addition to the usual roof and insulation tracks on a roof panel. It must prevent the development of slick fires or at least delay them. It must simultaneously form a vapor barrier. For this purpose, it contains two plastic sheets surrounding an aluminum sheet serving as a carrier. A glass fiber nonwoven with a certain crystal-bonded water content is plywood on a plastic sheet. Water vaporizes in the event of a fire. The resulting water vapor prevents or delays a pool fire or a total fire.

Description

Brandschutzbahn mit Da pfsperre Fire protection lane with barrier
Gebiet der ErfindungField of the Invention
Die Erfindung betrifft eine Brandschutzbahn mit Dampfsperre zum Belegen von Dach- und Wandflächen und dergleichen mit einer tragenden Bahn und einer auf diese aufkaschierten Flammschutzbahn aus einem Glasfaservlies mit einem Gehalt an kristallin gebundenem Wasser.The invention relates to a fire protection membrane with a vapor barrier for covering roof and wall surfaces and the like with a load-bearing membrane and a flame-retardant membrane made of a non-woven glass fiber and containing crystalline water.
Stand der TechnikState of the art
Auf Dachkonstruktionen und -bahnen, die keine "harte Beda¬ chung" im Sinne der DIN 4102 und damit nicht beständig ge¬ genüber Flugfeuer und strahlender Wärme sind, bringt man so¬ genannte Brandschutzbahnen an. Mit diesen Brandschutzbahnen erreicht man die gewünschte "harte Bedachung". Die Brand¬ schutzbahnen werden zwischen dem Dämmstoff und einer Ober¬ lage eingelegt. Hauptsächlich werden sie bei Kunststoffolien oder hochpolymeren Bahnen verwendet. Ein Beispiel für eine auf diese Weise erzielte "harte Bedachung" wird in der DE-OS 3 220 821 beschrieben.So-called fire protection membranes are attached to roof structures and membranes that are not "hard roofing" in the sense of DIN 4102 and are therefore not resistant to flight fire and radiant heat. With these fire protection membranes you can achieve the desired "hard roofing". The fire protection sheets are inserted between the insulation material and a top layer. They are mainly used for plastic films or high polymer webs. An example of a "hard roof" achieved in this way is described in DE-OS 3,220,821.
Es wurde auch schon vorgeschlagen (DE-Patentanmeldung P 33 22 283.5), Flachdächer mit einem Brandschutzanstrich¬ mittel, das Elastomerbitumen enthält, gegen einen Brand von oben zu schützen. Dieser Brandschutzanstrich wirkt ähnlich wie eine Kiesaufschüttung.It has also already been proposed (DE patent application P 33 22 283.5) to protect flat roofs against fire from above with a fire protection paint containing elastomer bitumen. This fire protection coating works like a gravel fill.
Bei Dächern und Flachdächern, insbesondere wenn große Flä¬ chen abgedeckt werden, wird als Unterkonstruktion häufig ein Stahlprofilblech verwendet. Als Dämmstoff wird dabei aus bauphysikalischen Gründen überwiegend EPS-Hartschäum ver¬ wendet. EPS bedeutet dabei expandiertes Polystyrol. Poly¬ styrol ist ein Thermoplast. In bezug auf Windlast, Feuch¬ tigkeitsaufnähme, Elastizität, Preiswürdigkeit und gute Verlegemöglichkeit stellt dieser Kunstschaumstoff die op¬ timale Lösung dar.With roofs and flat roofs, especially when large areas are covered, a is often used as the substructure Steel profile sheet used. For structural reasons, mainly EPS rigid foam is used as the insulation material. EPS means expanded polystyrene. Poly styrene is a thermoplastic. With regard to wind load, moisture absorption, elasticity, value for money and good laying options, this synthetic foam is the ideal solution.
Durch Untersuchungen des IVH, Industrieverband Hartschaum e.V., Heidelberg, und des Landes Nordrhein-Westfalen ist es bekannt, daß sich als Dämmstoffe auf Stahlprofilblechen ver¬ legte Thermoplaste in der Anfangsphase eines Brandes beson¬ ders günstig verhalten. In der Anfangsphase eines Brandes sintern oder zerfließen sie und nehmen dadurch Wärme auf. Dadurch wird der tibergang der Wärme auf das Stahlprofil¬ blech verzögert. Man spricht davon, daß die Temperatur nach oben abfließt. Bei anhaltendem Brand wird die Dachhaut je¬ doch stärker belastet. Nach einem Wegbrennen oder Verschwin¬ den des Dämmstoffes schlägt die Temperatur durch. Bei län¬ ger anhaltendem Brand kann es zu einem Durchbrand in der Fläche kommen. In der Endphase des Brandes, wenn das Stahl¬ profilblech einstürzt, ist es dann gleichgültig, ob als Dämmstoff ein schmelzender Thermoplast oder ein nicht schmelzender Werkstoff verwendet wurde.Investigations by the IVH, Industrieverband Hartschaum e.V., Heidelberg, and the state of North Rhine-Westphalia have shown that thermoplastics laid as insulation on steel profile sheets behave particularly favorably in the initial phase of a fire. In the initial phase of a fire, they sinter or melt and absorb heat. As a result, the transfer of heat to the steel profile sheet is delayed. It is said that the temperature flows upwards. If the fire continues, however, the roof skin is subjected to greater stress. After the insulating material has burned away or disappeared, the temperature breaks down. If the fire lasts longer, the surface may burn through. In the final phase of the fire, when the steel profile sheet collapses, it is immaterial whether a melting thermoplastic or a non-melting material was used as the insulating material.
Um die verhältnismäßig häufig auftretende Mittelphase des Brandes gut zu überstehen, werden immer wieder Dämmstoffe aus einem nicht schmelzenden Werkstoff verwendet. In den USA werden zum Beispiel Gipskartonplatten und auf diesen zusätzlich EPS-Platten auf die Stahlprofilbleche aufgelegt. Dies erfolgt in zwei Arbeitsgängen. Deshalb ist es verhält¬ nismäßig teuer. Weiter muß, um den bauphysikalischen Forde¬ rungen zu entsprechen, im Regelfall eine Dampfsperre unter den Gipskartonplatten angeordnet werden.In order to survive the relatively common middle phase of the fire, insulation materials made of a non-melting material are used again and again. In the USA, for example, gypsum plasterboard and, in addition, EPS plates are placed on the steel profile sheets. This is done in two steps. It is therefore relatively expensive. Furthermore, in order to meet the building physics requirements, a vapor barrier must generally be arranged under the plasterboard.
Weiter ist es bekannt, als Dampfsperre eine beidseitig mit Bitumen beschichtete Aluminiumfolie auf dem Stahlprofilblech anzuordnen. Wegen der Beschichtung mit Bitumen brennt die¬ se Folie jedoch leicht und trägt nicht zum Brandschutz bei.It is also known as a vapor barrier, an aluminum foil coated on both sides with bitumen on the steel profile sheet to arrange. Because of the coating with bitumen, however, this film burns easily and does not contribute to fire protection.
Kurze Beschreibung der ErfindungBrief description of the invention
Hiervon ausgehend stellt sich für die vorliegende Erfindung die Aufgabe, eine Dachbahn zu entwickeln, die sowohl eine Brandschutzbahn als auch eine Dampfsperre bildet. Dabei soll die Brandschutzbahn so ausgerüstet sein, daß bei ei¬ nem Brand von unten ein Durchbrand bis zum Einsturz des Stahlprofilbleches mit Sicherheit verhindert wird. Bei ei¬ ner Brandschutzbahn der eingangs genannten Gattung ergibt sich die Lösung für diese Aufgabe nach der Erfindung da¬ durch, daß die tragende Bahn eine Aluminiumfolie ist, Kunst¬ stoffolien auf beide Seiten der Aluminiumfolie aufkaschiert sind, das einen Gehalt an kristallin gebundenem Wasser auf¬ weisende Glasfaservlies auf eine der Kunststoffolien aufka¬ schiert und auf seiner freien Oberfläche mit einer Wachs¬ schicht beschichtet ist. Das Glasfaservlies, das das kri¬ stallin gebundene Wasser enthält, ist zum Beispiel gemäß der DE-OS 3 220 821 ausgebildet. Diese erfindungsgemäße Brandschutzbahn mit Dampfsperre wird über der tragenden Dachkonstruktion, zum Beispiel dem Stahlprofilblech, und unter der Dämmbahn verlegt.Proceeding from this, the object of the present invention is to develop a roofing membrane which forms both a fire protection membrane and a vapor barrier. The fire protection sheet should be equipped so that in the event of a fire, burn-through from below until the steel profile sheet collapses is reliably prevented. In the case of a fire protection sheet of the type mentioned at the outset, the solution to this problem according to the invention results from the fact that the load-bearing sheet is an aluminum foil, plastic foils are laminated onto both sides of the aluminum foil and have a content of crystalline water ¬ pointing glass fiber fleece is laminated onto one of the plastic films and coated on its free surface with a wax layer. The glass fiber fleece, which contains the crystal-bound water, is designed, for example, according to DE-OS 3 220 821. This fire protection membrane with vapor barrier according to the invention is laid over the load-bearing roof structure, for example the steel profile sheet, and under the insulation membrane.
Die auf der freien Oberfläche des Glasfaservlieses aufge¬ brachte Wachsschicht ist in einer zweckmäßigen Ausgestal¬ tung wasserabweisend, aber wasserdampfdurchlässig. Damit wird sichergestellt, daß das in dem Glasfaservlies kristal¬ lin gebundene Wasser oder das Brandschutzmittel während des Verlegens auf der Baustelle nicht ausgeschwemmt wird. Mit diesem Merkmal wird eine ausreichende Feuchtigkeitssicher¬ heit für die Verlegezeit auf der Baustelle erreicht. Zu er¬ wähnen ist dabei, daß die erfindungsgemäße Brandschutzbahn nach ihrem Verlegen sofort mit weiteren Bahnen abgedeckt werden kann und soll. Zweckmäßig besteht die auf die Unterseite der Aluminiumfo¬ lie auf aschierte Kunststoffolie aus Polyester, während die auf die Oberseite aufkaschierte Kunststoffolie aus Poly¬ äthylen besteht.In an expedient embodiment, the wax layer applied to the free surface of the glass fiber fleece is water-repellent but permeable to water vapor. This ensures that the water bound in the glass fiber fleece or the fire protection agent is not flushed out during laying on the construction site. With this feature, sufficient moisture security is achieved for the laying time on the construction site. It should be mentioned that the fire protection membrane according to the invention can and should be covered with additional membranes immediately after it has been laid. The plastic film coated on the underside of the aluminum film is expediently made of polyester, while the plastic film laminated on the upper side consists of polyethylene.
Bei einem Verlegen der erfindungsgemäßen Brandschutzbahn auf einem Profilblech können die dann freibleibenden Pro¬ filräume abgeschottet werden. Hierzu können Stäbe oder Wür¬ fel aus Kunststoffsch um indiese eingelegt werden. Diese Stäbe oder Würfel verschließen die Profile oder Sicken des Profilbleches. Damit werden brennbare Gase, Rauch und der¬ gleichen an einem Weiterströmen und einer Verbreitung ge¬ hindert. Zweckmäßig sind die aus einem Kunststoffschäum bestehenden Stäbe oder Würfel mit einem Brandschutzmittel getränkt. Die Verwendung solcher Stäbe oder Würfel aus Kunststoffschäum zum Verschließen der Profilhohlräume oder Sicken der Profilbleche ist an sich bekannt. Neu ist jedoch die Verwendung dieser Würfel oder Stäbe bei der erfindungs¬ gemäßen Brandschutzbahn, Ebenso ist es neu, diese Würfel oder Stäbe mit einem Brandschutzmittel zu behandeln oder zu tränken. Statt mit Kunststoffschäum können die frei¬ bleibenden Profilhohlräume auch mit Sand oder Kies abge¬ schottet werden. Dieser wird einfach in die Profilhohlräume hineingeschüttet.When the fire protection sheet according to the invention is laid on a profiled sheet, the profile spaces which are then left free can be partitioned off. For this purpose, rods or cubes made of plastic foam can be inserted around them. These bars or cubes close the profiles or beads of the profile sheet. This prevents combustible gases, smoke and the like from continuing to flow and spread. The rods or cubes consisting of a plastic foam are expediently impregnated with a fire protection agent. The use of such rods or cubes made of plastic foam for closing the profile cavities or beads of the profile sheets is known per se. What is new, however, is the use of these cubes or rods in the fire protection membrane according to the invention. It is also new to treat or soak these cubes or rods with a fire protection agent. Instead of using plastic foam, the remaining profile cavities can also be sealed off with sand or gravel. This is simply poured into the profile cavities.
Die erfindungsgemäße Branüschutzbahn hat eine hohe Reißfe¬ stigkeit. Sie kann daher auf Stahlprofilblechen bzw. Stahl¬ trapezblechen und über deren Sicken verlegt werden. Durch die dünnen Polyäthylenfolien ist sie gegen Korrosion ge¬ schützt. Die erfindungsgemäße Brandschutzbahn läßt sich mit einem Bitumen-Kaltkleber, der selbst nur wenig brennbare Bestandteile auf das Dach bringt, aufkleben. Auch die Über¬ lappungen zwischen benachbarten Brandschutzbahnen können mit einem Bitumen-Kaltkleber verklebt werden. Bei besonde¬ ren Brandschutzforderungen kann die Brandschutzbahn auch aufgenagelt werden. Dabei wird das gesamte Schichtenpaket einschließlich der ersten Lage der Dachhaut aufgenagelt. Bei einem Brand von unten gibt die oben liegende Brand¬ schutzbahn infolge des in dem Glasfaservlies kristallin ge¬ bundenen Wassers pro Quadratmeter zirka 200 g Wasser ab. Dies führt zu größeren Mengen Wasserdampf. Dieser Wasser¬ dampf füllt die Kavernen des thermoplastischen Werkstoffes, die sich durch die Temperatureinstrahlung von unten ergeben haben, so stark mit Wasserdampf, daß ein Durchbrand nicht mehr möglich ist.The branch protection sheet according to the invention has a high tear resistance. It can therefore be laid on steel profile sheets or steel trapezoidal sheets and over their beads. It is protected against corrosion by the thin polyethylene foils. The fire protection membrane according to the invention can be stuck on with a bitumen cold adhesive which itself brings only few flammable components onto the roof. The overlaps between adjacent fire protection membranes can also be glued with a bitumen cold adhesive. In the case of special fire protection requirements, the fire protection membrane can also be nailed on. The entire layer package including the first layer of the roof skin is nailed on. In the event of a fire from below, the fire protection sheet on top releases about 200 g of water per square meter as a result of the water crystallized in the glass fiber fleece. This leads to larger amounts of water vapor. This water vapor fills the caverns of the thermoplastic material, which have resulted from the temperature radiation from below, so strongly with water vapor that burn-through is no longer possible.
Die erfindungsgemäße Brandschutzbahn läßt sich, wie ausge¬ führt, unmittelbar auf Stahlprofilbleche, wie Stahltrapez¬ bleche, verlegen. Ebenso kann sie auch auf andere brand¬ schutzbedürftige Unterkonstruktionen aufgelegt werden. Dabei bildet sie die aus bauphysikalischen Gründen notwendige Dampfsperre und verhindert gleichzeitig, wie ausgeführt, einen Durchbrand.The fire protection sheet according to the invention can, as stated, be laid directly on steel profile sheets, such as trapezoidal steel sheets. It can also be placed on other substructures in need of fire protection. It forms the vapor barrier necessary for building physics reasons and, at the same time, prevents burnout, as stated.
Beschreibung der ZeichnungDescription of the drawing
Am Beispiel der in der Zeichnung gezeigten Ausführungsfor¬ men wird die Brandschutzbahn nun weiter beschrieben. In der Zeichnung ist:The fire protection membrane is now further described using the example of the embodiment shown in the drawing. In the drawing is:
Fig. 1 eine perspektivische, nicht maßstäbliche Darstellung der Brandschutzbahn, wobei die Bahnen zum besseren Verständnis gebrochen gezeichnet sind,1 is a perspective view, not to scale, of the fire protection sheet, the sheets being drawn broken for better understanding,
Fig. 2 in anderem Maßstab eine perspektivische Darstellung des verwendeten Stahltrapezbleches mit eingelegten Stäben aus Kunststoffschäum undFig. 2 on a different scale, a perspective view of the steel trapezoidal sheet used with inserted rods made of plastic foam and
Fig. 3 eine Darstellung entsprechend Fig. 2 mit eingeschüt¬ tetem Sand. Beschreibung eines Ausführungsbeispiels3 shows a representation corresponding to FIG. 2 with sand poured in. Description of an embodiment
Fig. 1 zeigt das Stahlprofilblech 12, bei dem es sich um ein Trapezblech handelt. Auf diesem liegt die erfindungs¬ gemäße Brandschutzbahn. Zu dieser gehören die Aluminiumfo¬ lie 14 und die auf deren beiden Seiten aufkaschierten Kunst¬ stoffolien 16 und 18. Auf die oben liegende Kunststoffolie 16 ist das Glasfaservlies 20 aufkaschiert. Dieses ist mit einem Brandschutzmittel behandelt und/oder mit kristallin gebundenem Wasser angereichert. Auf dem Glasfaservlies 20 befindet sich eine dünne Wachsschicht 22. Die Hohlräume oder Sicken des Trapezbleches 12 sind mit 24 bezeichnet.Fig. 1 shows the steel profile sheet 12, which is a trapezoidal sheet. The fire protection membrane according to the invention lies on this. This includes the aluminum foil 14 and the plastic foils 16 and 18 laminated on both sides thereof. The glass fiber fleece 20 is laminated onto the plastic foil 16 lying on top. This is treated with a fire protection agent and / or enriched with crystalline water. There is a thin wax layer 22 on the glass fiber fleece 20. The cavities or beads of the trapezoidal sheet 12 are designated by 24.
Gemäß der Darstellung in Fig. 2 liegen in diesen Sicken Wür¬ fel oder Stäbe 26 aus Kunststoffschäum. Hierbei kann es sich um expandiertes Polystyrol = EPS handeln. Diese Stäbe können ebenfalls mit einem Brandschutzmittel behandelt sein oder kristallin gebundenes Wasser enthalten. Wie ausgeführt verhindern sie, daß bei einem Brand Rauch und brennbare Ga¬ se durch die Sicken 24 strömen und sich damit im Bauwerk und der Dachkonstruktion verteilen. Gemäß der Darstellung in Fig. 3 sind in die Sicken kleine Häufchen 28 aus Kies oder Sand eingefüllt. According to the illustration in FIG. 2, cubes or rods 26 made of plastic foam lie in these beads. This can be expanded polystyrene = EPS. These rods can also be treated with a fire protection agent or contain crystalline water. As stated, they prevent smoke and combustible gas from flowing through the beads 24 in the event of a fire and thus being distributed in the building and the roof structure. 3, small piles 28 of gravel or sand are filled into the beads.

Claims

Patentansprüche Claims
1. Brandschutzbahn mit Dampfsperre zum Belegen von Dach- und Wandflächen und dergleichen mit einer tragenden Bahn und einer auf diese aufkaschierten Flammschutzbahn aus einem Glasfaservlies mit einem Gehalt an kristallin ge¬ bundenem Wasser, dadurch gekennzeichnet, daß die tragen¬ de Bahn eine Aluminiumfolie (14) ist, Kunststoffolien (16, 18) auf beide Seiten der Aluminiumfolie (14) aufka¬ schiert sind, das einen Gehalt an kristallin gebundenem Wasser aufweisende Glasfaservlies (20) auf eine (16) der Kunststoffolien aufkaschiert und auf seiner freien Ober¬ fläche mit einer Wachsschicht (22) beschichtet ist.1. Fire protection sheet with a vapor barrier for covering roof and wall surfaces and the like with a load-bearing sheet and a flame-retardant sheet made of a glass fiber fleece laminated thereon and containing crystalline-bound water, characterized in that the supporting sheet comprises an aluminum foil (14 ), plastic foils (16, 18) are laminated onto both sides of the aluminum foil (14), the glass fiber fleece (20) with a content of crystalline water is laminated onto one (16) of the plastic foils and with it on its free surface a wax layer (22) is coated.
2. Brandschutzbahn nach Anspruch 1, dadurch gekennzeichnet, daß die Wachsschicht (22) wasserabweisend und wasser¬ dampfdurchlässig ist.2. Fire protection membrane according to claim 1, characterized in that the wax layer (22) is water-repellent and water-vapor permeable.
3. Brandschutzbahn nach Anspruch 1, dadurch gekennzeichnet, daß die auf die Unterseite der Aluminiumfolie (14) auf¬ kaschierte Kunststoffolie (18) aus Polyester besteht.3. Fire protection sheet according to claim 1, characterized in that the auf¬ laminated on the underside of the aluminum foil (14) plastic film (18) consists of polyester.
4. Brandschutzbahn nach Anspruch 1, dadurch gekennzeichnet, daß die auf die Oberseite der Aluminiumfolie (14) auf- kaschierte Kunststoffolie (16) aus Polyäthylen besteht. 4. Fire protection sheet according to claim 1, characterized in that the plastic film (16) laminated onto the top of the aluminum foil (14) consists of polyethylene.
EP19850901366 1984-03-17 1985-03-15 Fire arrester path with moisture barrier Expired EP0172898B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85901366T ATE30449T1 (en) 1984-03-17 1985-03-15 FIRE PROTECTION MEMBRANE WITH VAPOR BARRIER.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843409897 DE3409897A1 (en) 1984-03-17 1984-03-17 FIRE PROTECTION RAILWAY WITH STEAM BARRIER
DE3409897 1984-03-17

Publications (2)

Publication Number Publication Date
EP0172898A1 true EP0172898A1 (en) 1986-03-05
EP0172898B1 EP0172898B1 (en) 1987-10-28

Family

ID=6230845

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (13)

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US (1) US4601943A (en)
EP (1) EP0172898B1 (en)
JP (1) JPS615938A (en)
AU (1) AU4003985A (en)
CA (1) CA1241173A (en)
DE (2) DE3409897A1 (en)
DK (1) DK158394C (en)
ES (1) ES285421Y (en)
GR (1) GR850597B (en)
IT (1) IT1212113B (en)
NZ (1) NZ211466A (en)
WO (1) WO1985004209A1 (en)
ZA (1) ZA851947B (en)

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DE3615116A1 (en) * 1986-05-03 1987-11-05 Roland Werke Dachbaustoffe U B BUILDING ROOF OR WALL COVER
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DE9211849U1 (en) * 1992-09-08 1992-12-03 Roland-Werke Dachbaustoffe u. Bauchemie GmbH & Co KG, 28832 Achim Covering, in particular for roofs, and waterproofing sheet for such a covering
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Also Published As

Publication number Publication date
WO1985004209A1 (en) 1985-09-26
EP0172898B1 (en) 1987-10-28
JPS615938A (en) 1986-01-11
US4601943A (en) 1986-07-22
ZA851947B (en) 1985-11-27
ES285421U (en) 1985-11-01
DK158394C (en) 1990-10-22
JPH0455104B2 (en) 1992-09-02
IT8519924A0 (en) 1985-03-15
GR850597B (en) 1985-07-23
NZ211466A (en) 1988-06-30
DK118285A (en) 1985-09-18
DK118285D0 (en) 1985-03-15
DE3409897A1 (en) 1985-09-19
IT1212113B (en) 1989-11-08
AU4003985A (en) 1985-09-19
ES285421Y (en) 1987-01-16
CA1241173A (en) 1988-08-30
DK158394B (en) 1990-05-14
DE3560842D1 (en) 1987-12-03

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