EP0352394B1 - Bauweise zur Wärmedämmung und Dichtung von Dächern und Dichtungsschicht zu deren Verwendung - Google Patents

Bauweise zur Wärmedämmung und Dichtung von Dächern und Dichtungsschicht zu deren Verwendung Download PDF

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Publication number
EP0352394B1
EP0352394B1 EP88440068A EP88440068A EP0352394B1 EP 0352394 B1 EP0352394 B1 EP 0352394B1 EP 88440068 A EP88440068 A EP 88440068A EP 88440068 A EP88440068 A EP 88440068A EP 0352394 B1 EP0352394 B1 EP 0352394B1
Authority
EP
European Patent Office
Prior art keywords
strip
self
sealing
thermoweldable
adhesive
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.)
Expired - Lifetime
Application number
EP88440068A
Other languages
English (en)
French (fr)
Other versions
EP0352394A1 (de
Inventor
Pierre Geisen
Bernard Ducret
André Bruder
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.)
Soprema SAS
Original Assignee
Soprema SAS
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
Priority claimed from FR8810465A external-priority patent/FR2634808B2/fr
Application filed by Soprema SAS filed Critical Soprema SAS
Priority to AT88440068T priority Critical patent/ATE72473T1/de
Publication of EP0352394A1 publication Critical patent/EP0352394A1/de
Application granted granted Critical
Publication of EP0352394B1 publication Critical patent/EP0352394B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D5/00—Roof covering by making use of flexible material, e.g. supplied in roll form
    • E04D5/12—Roof covering by making use of flexible material, e.g. supplied in roll form specially modified, e.g. perforated, with granulated surface, with attached pads
    • 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

Definitions

  • the present invention relates to roofing systems used for sealing and insulating roofs, in particular but not exclusively in ribbed steel sheets, and it aims at improvements to those of these systems using insulating polystyrene panels. expanded.
  • the insulation and sealing system described in this patent consists in first fixing on the support to be protected common expanded polystyrene sheets by means of a cold glue, then to be applied to these sheets, also cold. , a first sealing layer self-adhesive, and finally to heat cover this first layer with a second self-protected sealing layer.
  • the expanded polystyrene sheets used in this system are simple commercial panels, without surfacing, of expanded polystyrene with a density between about 16 and 25 kg / m3, which can be bonded cold directly to the support, without risk of degradation of the appropriate waterproof layers applied on top.
  • the first sealing layer of this system is also applied cold, thanks to the use of self-adhesive sheets comprising a reinforcement, for example of organic fibers such as non-woven polyester fibers, which allows them to s' adapt without constraints to the movements of the support.
  • a reinforcement for example of organic fibers such as non-woven polyester fibers
  • the second sealing layer is then applied by heat welding to the first, this mode of application improving at the same time the adhesion of the first layer by thermal reduction of the viscosity of its self-adhesive mass and correlative increase in its adhesiveness.
  • This second sealing layer is produced by means of bitumen-based sealing sheets, comprising a reinforcement and self-protected by mineral granules.
  • Such a system is particularly suitable for industrial roofs made of ribbed sheet steel, which have long posed the most acute problems, but it is equally suitable for very different substrates, for example masonry, aerated concrete, ligno- cellulosic, wooden, aluminum sheet and it can even be applied on old waterproofing coatings to renovate.
  • this first sealing layer may not be done immediately during its application, due in particular to unfavorable atmospheric conditions, or for any other reason. It follows that the first sealing layer may not be completely waterproof, in particular at the junctions of the sheets, which is detrimental to the quality of protection of the system.
  • This improvement consists in using, in order to constitute the first sealing layer, self-adhesive sealing sheets having at the edge, unilaterally a heat-weldable space, so that the covering edge of each sheet is constituted of two parts, one of which, set back from the edge, is self-adhesive when cold and the other, at the edge, is heat sealable.
  • the advantage inherent in this improvement resides in the fact that the self-adhesive part of the covering edge provides sufficient sealing of the first sealing layer as well as effective temporary protection of the polystyrene against the flame. or hot air necessary for the welding of the other part, until the hot welding of the heat-weldable part which guarantees the perfect sealing of the system.
  • this sealing system however requires the successive application, on the support to be protected, of expanded polystyrene plates fixed on the support by means of a cold glue, of a first self-sealing layer. - heat-sealable adhesive at the edge and a second sealing layer welded with a torch.
  • the present invention aims to propose a system sealing which implements a single sealing layer instead of two successive sealing layers.
  • the present invention thus relates to a sealing system which consists in successively applying to the support to be protected expanded polystyrene plates fixed on the support by means of a cold glue, then a self-adhesive heat-sealable sealing sheet border and self-protected on its upper face.
  • the present invention also relates to the sealing sheets used to produce the sealing system which constitutes its first object.
  • the heat-sealable braid located at the edge of the sealing sheets according to the invention forms part of the covering selvedge, the other part of which is self-adhesive.
  • this heat-sealable braid can be covered with a film of a hot-melt synthetic material such as polypropylene or polyethylene.
  • the sealing sheet according to the invention may comprise at its upper face, on its non-self-protected edge, and over a width equal to that of the heat-sealable strip, a detachable protective strip intended at be, during installation, facing the heat-sealable braid of the adjacent sheet, so as to prevent spontaneous bonding of said heat-sealable braid before its implementation.
  • Such an embodiment is particularly advantageous in the case where the installation of the sealing sheets according to the invention must be carried out under climatic conditions which make this risk run.
  • the removable protective tape can be made of silicone paper or silicone polypropylene. It is held in place on the sheet until the heat sealing operation of the heat-sealable strip.
  • the sealing sheets according to the invention are preferably made of a material based on oxidized bitumen or on bitumen modified by polymers, reinforced by a reinforcement of organic fibers such as nonwoven polyester fibers.
  • the self-protection of the sealing sheets according to the invention can be carried out using mineral granules or a metallic or synthetic film.
  • the heat-sealable strip formed at the edge of the sealing sheets according to the invention preferably has a width of 4 to 6 cm, approximately equal to half the width of the overlapping selvedge, which is generally 8 to 12 cm wide.
  • the sealing system produced by means of the sealing sheets according to the invention exhibits excellent qualities of insulation and sealing and this by using only one sealing layer. It therefore allows significant savings in resources, both in terms of equipment and in terms of labor.
  • the sealing sheet 4 has on its upper face a self-protection 6 consisting of mineral granules.
  • This self-protection is interrupted at the end 8 of the sheet over a width (l) equal to that of the covering edge of the sheet 4.
  • the sheet 4 has on its underside an adhesive underside 5 extended to the 'other end of the sheet by a heat-sealable strip 7 covered with a hot-melt film 7 ′, so that its covering edge comprises a self-adhesive part 5 ′ and a heat-sealable part constituted by the heat-sealable strip 7 covered with the hot-melt film 7 ′.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Laminated Bodies (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Building Environments (AREA)

Claims (10)

1. Verfahren zur Wärmedämmung und Abdichtung von Dächern, bestehend aus dem aufeinanderfolgenden Aufbringen von Polystyrolschaumtafeln (2), die mittels eines Kaltklebers fixiert werden, und sodann einer selbstklebenden Dichtungsschicht auf der zu schützenden Unterlage (1), dadurch gekennzeichnet, daß die Dichtungsschicht verwirklicht wird durch das Verwenden von Dichtungsfolien (3, 4), die an ihrer Unterseite (5) über die gesamte Fläche hinweg selbstklebend sind, mit Ausnahme einer warmverschweißbaren Borte (7), die seitlich an einem Rand angeordnet ist und die Teil des Überlappsaums dieser Folien bildet und die an ihrer Oberseite über die gesamte Fläche hinweg mit einer Schutzschicht (6) versehen sind, mit Ausnahme eines Bands (8), das seitlich an dem Rand angeordnet ist, der demjenigen gegenüberliegt, der unterseitig die warmverschweißhare Borte trägt, die Breite (l) dieses Bands derjenigen des Überlappsaums entspricht, von dem ein Teil gebildet wird durch die warmverschweißbare Borte (7) und der andere Teil (5′), der versetzt in Bezug auf den Rand ist, selbstklebend ist und die warmverschweißbare Borte warmverschweißt wird, wenn die Dichtungsfolien verlegt sind.
2. Dichtungsfolie (3, 4) zur Ausführung des Verfahrens nach Anspruch 1, dadurch gekennzeichnet, daß sie eine Unterseite (5) aufweist, die über ihre gesamte Fläche hinweg selbstklebend ist, mit Ausnahme einer warmverschweißbaren Borte (7), die seitlich an einem Rand angeordnet ist und die Teil des Überlappbereichs dieser Folie bildet, dessen anderer Teil selbstklebend ist und mit einer Oberseite, die über ihre gesamte Fläche hinweg mit einer Schutzschicht (6) versehen ist, mit Ausnahme eines Bands (8), das seitlich an dem Rand angeordnet ist, der demjenigen gegenüberliegt, der die warmverschweißbare Borte (7) trägt, wobei die Breite (l) dieses Bands derjenigen des die warmverschweißbare Borte (7) aufweisenden Überlappbereichs entspricht.
3. Dichtungsfolie nach Anspruch 2, dadurch gekennzeichnet, daß die warmverschweißbare Borte (7) durch einen Film eines wärmeschmelzbaren Kunststoffmaterials bedeckt ist.
4. Dichtungsfolie nach Anspruch 3, dadurch gekennzeichnet, daß das wärmeschmelzbare Kunststoffmaterial aus der Polypropylen und Polyethylen enthaltenden Gruppe ausgewählt ist.
5. Dichtungsfolie nach einem der Ansprüche 2 bis 4, dadurch gekennzeichnet, daß die Oberseite mittels Mineralgranulat geschützt ist.
6. Dichtungsfolie nach einem der Ansprüche 2 bis 5, dadurch gekennzeichnet, daß die Oberseite mittels einer Metall- oder Kunststoffolie geschützt ist.
7. Dichtungsfolie nach einem der Ansprüche 2 bis 6, dadurch gekennzeichnet, daß sie an ihrer Oberseite auf ihrem nicht geschützten Rand (8) über eine Breite hinweg, die gleich derjenigen der wärmeverschweißbaren Borte (7)ist, ein entfernbares Schutzband aufweist, das beim Verlegen gegenüber der wärmeverschweißbaren Borte der benachbarten Folie zu liegen kommt.
8. Dichtungsfolie nach Anspruch 7, dadurch gekennzeichnet, daß das entfernbare Schutzband ein Band aus Silikonpapier oder aus Silikonpolypropylen ist.
9. Dichtungsfolie nach einem der Ansprüche 2 bis 8, dadurch gekennzeichnet, daß ihre selbstklebende Oberfläche durch eine Folie aus Silikonpapier oder aus Silikonpolypropylen geschützt ist.
10. Dichtungsfolie nach einem der Ansprüche 2 bis 9, dadurch gekennzeichnet, daß sie aus einem Material auf der Basis von elastomerem Bitumen, verstärkt durch eine fasrige Bewehrung, besteht.
EP88440068A 1988-07-29 1988-08-29 Bauweise zur Wärmedämmung und Dichtung von Dächern und Dichtungsschicht zu deren Verwendung Expired - Lifetime EP0352394B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88440068T ATE72473T1 (de) 1988-07-29 1988-08-29 Bauweise zur waermedaemmung und dichtung von daechern und dichtungsschicht zu deren verwendung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8810465A FR2634808B2 (fr) 1983-10-04 1988-07-29 Systeme pour l'isolation des toitures
FR8810465 1988-07-29

Publications (2)

Publication Number Publication Date
EP0352394A1 EP0352394A1 (de) 1990-01-31
EP0352394B1 true EP0352394B1 (de) 1992-02-05

Family

ID=9369060

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88440068A Expired - Lifetime EP0352394B1 (de) 1988-07-29 1988-08-29 Bauweise zur Wärmedämmung und Dichtung von Dächern und Dichtungsschicht zu deren Verwendung

Country Status (5)

Country Link
EP (1) EP0352394B1 (de)
AT (1) ATE72473T1 (de)
DE (1) DE3868323D1 (de)
ES (1) ES2029899T3 (de)
GR (1) GR3004496T3 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024030549A1 (en) * 2022-08-05 2024-02-08 Bmic Llc Roofing membrane with selvage edges and associated method and article

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4022338A1 (de) 1990-04-04 1991-10-10 Kebulin Ges Kettler & Co Kg Bituminoese schweissbahn fuer verwahrungszwecke von bauten
DE19937111C1 (de) * 1999-08-06 2001-02-01 Bauder Paul Gmbh & Co Verfahren zum Verlegen kaltselbstklebender Bitumenabdichtungsbahnen und Bitumenabdichtungsbahn
US7101598B2 (en) 2002-05-22 2006-09-05 Om Nova Solutions Inc. Self adhering membrane for roofing applications

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4091135A (en) * 1972-02-19 1978-05-23 Tajima Roofing Co., Ltd. Laminated bituminous roofing membrane
JPS5413104B2 (de) * 1975-03-18 1979-05-28
IT1052809B (it) * 1975-04-12 1981-07-20 Ruetgerswerke Ag Struttura portante per coperture di edifici
US4622252A (en) * 1982-09-29 1986-11-11 Phillips Petroleum Company Laminate with plastic film
JPS6059184A (ja) * 1983-09-12 1985-04-05 Tajima Le-Fuingu Kk アスファルト系積層ル−フィングシ−ト
GB2148346A (en) * 1983-10-19 1985-05-30 Gen Electric Built-up roofing comprising silicone-rubber-coated glass fabric
FR2556391B1 (fr) * 1983-12-07 1988-05-06 Siplast Sa Feuilles d'etancheite perfectionnees a base d'un materiau bitumineux et structures pourvues d'un revetement d'etancheite constitue par lesdites feuilles
EP0156536B1 (de) * 1984-03-23 1990-07-04 Minnesota Mining And Manufacturing Company Schweissbare Membran und Übertragungsband zum Gebrauch bei der Herstellung derselben
EP0178353B1 (de) * 1984-10-16 1988-06-01 Coal Industry (Patents) Limited Bedachungen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024030549A1 (en) * 2022-08-05 2024-02-08 Bmic Llc Roofing membrane with selvage edges and associated method and article

Also Published As

Publication number Publication date
DE3868323D1 (de) 1992-03-19
ES2029899T3 (es) 1992-10-01
EP0352394A1 (de) 1990-01-31
ATE72473T1 (de) 1992-02-15
GR3004496T3 (de) 1993-03-31

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