EP0316497B1 - Bauweise zur Wärmedämmung und Dichtung von Dächern und Dichtungsschicht zu ihrer Verwendung - Google Patents

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

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Publication number
EP0316497B1
EP0316497B1 EP87440087A EP87440087A EP0316497B1 EP 0316497 B1 EP0316497 B1 EP 0316497B1 EP 87440087 A EP87440087 A EP 87440087A EP 87440087 A EP87440087 A EP 87440087A EP 0316497 B1 EP0316497 B1 EP 0316497B1
Authority
EP
European Patent Office
Prior art keywords
sealing
self
adhesive
strip
thermo
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
EP87440087A
Other languages
English (en)
French (fr)
Other versions
EP0316497A1 (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 FR8716231A external-priority patent/FR2623542B2/fr
Application filed by Soprema SAS filed Critical Soprema SAS
Priority to AT87440087T priority Critical patent/ATE65570T1/de
Publication of EP0316497A1 publication Critical patent/EP0316497A1/de
Application granted granted Critical
Publication of EP0316497B1 publication Critical patent/EP0316497B1/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
    • 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
    • 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

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 panels in expanded polystyrene.
  • 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 self-adhesive sealing layer and finally to cover this first layer with a second sealing layer welded with a torch.
  • this system presents an appreciable progress compared to those previously existing, its implementation however involves the risk that the bonding of this first sealing layer may not be done immediately during its application, due in particular to conditions adverse weather 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.
  • the present invention seeks to remedy these drawbacks by proposing a means which guarantees the sealing of the first self-adhesive sealing layer of a sealing system of the type described above.
  • the present invention consists in using, with a view to constituting the first sealing layer, self-adhesive sealing sheets having at the edge, unilaterally, a heat-weldable space, so that the edge of overlap of each sheet is made up 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 present invention thus relates to an insulation and sealing process comprising the successive application, on the support to be protected, of expanded polystyrene plates fixed by means of a cold adhesive, then a first layer of self-adhesive sealing and finally of a second heat-sealed sealing layer on the first, this process having the characteristic of using self-adhesive sealing sheets which also constitute an object of the invention.
  • the sealing sheets according to the invention have the characteristic of having a self-adhesive lower face over their entire surface, with the exception of a heat-sealable strip located at the edge, unilaterally, and constituting part of the edge of overlap of said sheets. , the other part of this selvedge being self-adhesive.
  • 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 polyester or polyamide fibers woven or nonwoven, as described in document EP-A-0 178 353.
  • the self-adhesive face of the sealing sheets according to the invention is protected by a protective sheet detachable at the time of use, such as a sheet of silicone paper or a sheet of silicone polypropylene.
  • the braid formed at the edge of the sealing sheets according to the invention preferably has a width of the order of 5 cm, approximately equal to half the width of the covering edge, which is generally 8 to 12 cm wide. It can advantageously be covered with a film of a heat-fusible synthetic material, such as polypropylene or polyethylene, intended to facilitate welding.
  • a heat-fusible synthetic material such as polypropylene or polyethylene
  • the advantage inherent in the present invention resides in the fact that the self-adhesive part of the covering edge provides sufficient sealing of the first sealing layer until the heat sealing of the other part, which guarantees perfect sealing of said layer.
  • the support 1 to be protected is seen covered with a layer of expanded polystyrene 2 to which is applied a first sealing layer formed of sheets 3 and 4 comprising an adhesive underside 5.
  • the selvedge covering sheets 3 and 4 is formed by a part 5 ' self-adhesive and part 6 hot welded.
  • the first sealing layer 3-4 is covered by a second sealing layer 7 heat welded.
  • sealing sheets according to the invention if they find a particularly advantageous application in the insulation and sealing system which has just been described, can also be used with advantage in systems of different sealing using self-adhesive sealing sheets.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)
  • Laminated Bodies (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
  • Tents Or Canopies (AREA)

Claims (5)

  1. Verfahren zur Wärmedämmung und Abdichtung von Dächern, bestehend aus dem aufeinanderfolgenden Anbringen von mittels eines Kaltleims befestigten Polystyrolschaumplatten (2) auf dem zu schützenden Träger (1), sodann von einem ersten selbstklebenden Dichtungsbelag und letztlich von einem zweiten, auf dem ersten warmverschweißten Dichtungsbelag (7), dadurch gekennzeichnet, daß der erste Dichtungsbelag durch das Aufbringen von Dichtungsbahnen (3,4) verwirklicht wird, welche eine auf ihrer gesamten Fläche klebende Unterseite (5) mit Ausnahme einer einseitig am Rand angeordneten warmverschweißbaren Borte (6) aufweisen, die Teil des Überlapprandes der Bahnen ist, dessen anderer gegenüber der Borte (6) versetzter Teil (5') selbstklebend ist, wobei das Aufbringen der Dichtungsbahnen bewirkt wird, indem in einem ersten Schritt der selbstklebende Teil (5') des Überlapprandes und sodann in einem zweiten Schritt die warmverschweißbare Borte (6), die warm verschweißt wird, verarbeitet werden.
  2. Dichtungsbahn zur Ausführung des Verfahrens nach Anspruch 1, dadurch gekennzeichnet, daß sie aus einem Material auf Bitumenbasis, das durch eine fasrige Bewehrung verstärkt ist, besteht und eine auf ihrer gesamten Fläche selbstklebende Unterseite mit Ausnahme einer einseitig am Rand angeordneten warmverschweißbaren Borte (6) aufweist, die Teil des Überlapprandes dieser Bahn ist, dessen anderer Teil (5') selbstklebend ist.
  3. Dichtungsbahn nach Anspruch 2, dadurch gekennzeichnet, daß die warmverschweißbare Borte (6) beschichtet ist mit einem warmverschweißbaren Kunststoffilm, der aus der Gruppe ausgewählt ist, die von Polypropylen und Polyäthylen gebildet wird.
  4. Dichtungsbahn nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß sie auf der Basis von elastomerverstärktem Bitumen aufgebaut ist.
  5. Dichtungsbahn nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß sie durch eine fasrige Bewehrung verstärkt ist, die aus der Gruppe ausgewählt ist, die von Geweben und Nichtgeweben des Polyesters und Geweben und Nichtgeweben des Polyamids gebildet wird.
EP87440087A 1987-11-19 1987-12-24 Bauweise zur Wärmedämmung und Dichtung von Dächern und Dichtungsschicht zu ihrer Verwendung Expired - Lifetime EP0316497B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87440087T ATE65570T1 (de) 1987-11-19 1987-12-24 Bauweise zur waermedaemmung und dichtung von daechern und dichtungsschicht zu ihrer verwendung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8716231A FR2623542B2 (fr) 1983-10-04 1987-11-19 Systeme pour l'isolation des toitures
FR8716231 1987-11-19

Publications (2)

Publication Number Publication Date
EP0316497A1 EP0316497A1 (de) 1989-05-24
EP0316497B1 true EP0316497B1 (de) 1991-07-24

Family

ID=9357079

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87440087A Expired - Lifetime EP0316497B1 (de) 1987-11-19 1987-12-24 Bauweise zur Wärmedämmung und Dichtung von Dächern und Dichtungsschicht zu ihrer Verwendung

Country Status (6)

Country Link
EP (1) EP0316497B1 (de)
AT (1) ATE65570T1 (de)
CA (1) CA1333321C (de)
DE (1) DE3771723D1 (de)
ES (1) ES2023938B3 (de)
GR (1) GR3002933T3 (de)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2552801B1 (fr) * 1983-10-04 1986-05-30 Soprema Sa Systeme pour l'isolation des toitures
DE3578504D1 (de) * 1984-03-23 1990-08-09 Minnesota Mining & Mfg Schweissbare membran und uebertragungsband zum gebrauch bei der herstellung derselben.
DE3471708D1 (en) * 1984-10-16 1988-07-07 Coal Industry Patents Ltd Improvements in roofing
DK150586C (da) * 1985-05-31 1987-10-05 Villadsens Fab As Jens Fremgangsmaade til fremstilling af en vandtaet belaegning paa et underlag samt baneformet materiale til brug ved fremgangsmaaden

Also Published As

Publication number Publication date
GR3002933T3 (en) 1993-01-25
ES2023938B3 (es) 1992-02-16
DE3771723D1 (de) 1991-08-29
ATE65570T1 (de) 1991-08-15
CA1333321C (fr) 1994-12-06
EP0316497A1 (de) 1989-05-24

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