EP0316497B1 - System for the heat insulation and the impermeability of roofs, and impermeable membrane for its application - Google Patents
System for the heat insulation and the impermeability of roofs, and impermeable membrane for its application Download PDFInfo
- 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
Links
- 239000012528 membrane Substances 0.000 title abstract 4
- 238000009413 insulation Methods 0.000 title description 5
- 238000007789 sealing Methods 0.000 claims description 43
- 239000000853 adhesive Substances 0.000 claims description 21
- -1 polypropylene Polymers 0.000 claims description 7
- 239000010426 asphalt Substances 0.000 claims description 5
- 239000004794 expanded polystyrene Substances 0.000 claims description 5
- 239000004743 Polypropylene Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 229920001155 polypropylene Polymers 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 3
- 239000004952 Polyamide Substances 0.000 claims description 2
- 239000004698 Polyethylene Substances 0.000 claims description 2
- 239000003292 glue Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 229920002647 polyamide Polymers 0.000 claims description 2
- 229920000573 polyethylene Polymers 0.000 claims description 2
- 229920002994 synthetic fiber Polymers 0.000 claims description 2
- 239000004745 nonwoven fabric Substances 0.000 claims 2
- 229920001971 elastomer Polymers 0.000 claims 1
- 239000000806 elastomer Substances 0.000 claims 1
- 238000007688 edging Methods 0.000 abstract 2
- 239000000203 mixture Substances 0.000 description 4
- FACXGONDLDSNOE-UHFFFAOYSA-N buta-1,3-diene;styrene Chemical compound C=CC=C.C=CC1=CC=CC=C1.C=CC1=CC=CC=C1 FACXGONDLDSNOE-UHFFFAOYSA-N 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 229920000468 styrene butadiene styrene block copolymer Polymers 0.000 description 3
- 229920001296 polysiloxane Polymers 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 241001639412 Verres Species 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229920006149 polyester-amide block copolymer Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
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)
- Tents Or Canopies (AREA)
- Roof Covering Using Slabs Or Stiff Sheets (AREA)
Abstract
Description
La présente invention concerne les systèmes de couverture utilisés pour assurer l'étanchéi té et l'isolation des toitures, notamment mais non exclusivement en tôles d'acier nervurées, et elle vise des perfectionnements à ceux de ces systèmes faisant appel à des panneaux isolants en polystyrène expansé.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.
L'emploi de tels panneaux s'était heurté pendant longtemps à des difficultés techniques qui avaient conduit à des réglementations restrictives et à certaines habitudes contractées par les techniciens, en raison des propriétés de ces panneaux.The use of such panels had encountered technical difficulties for a long time which had led to restrictive regulations and certain habits contracted by technicians, due to the properties of these panels.
Tous les inconvénients et limitations inhérents à l'emploi de ces panneaux isolants ont pu être écartés grâce à un système mis au point par la Demanderesse et qui fait l'objet de son brevet français no 2 552 801.All drawbacks and limitations inherent in the use of these insulating panels have been separated through a system developed by the applicant and which is the subject of the French Patent No. 2,552,801.
Le système d'isolation et d'étanchéisation décrit dans ce brevet consiste à fixer dans un premier temps sur le support à protéger des plaques de polystyrène expansé courantes au moyen d'une colle à froid, puis à appliquer sur ces plaques, également à froid, une première couche d'étanchéité auto-adhésive et enfin à recouvrir cette première couche par une seconde couche d'étanchéité soudée au chalumeau.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.
Si ce système présente un progrès appréciable par rapport à ceux précédemment existants, sa mise en oeuvre comporte toutefois le risque que l'autocollage de cette première couche d'étanchéité peut ne pas se faire immédiatement lors de son application, en raison en particulier de conditions atmosphériques défavorables, ou pour toute autre raison. Il s'ensuit que la première couche d'étanchéité peut ne pas être complètement étanche, notamment aux jonctions des feuilles, ce qui nuit à la qualité de protection du système.If 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.
D'autre part, on sait que la mise en oeuvre de feuilles d'étanchéité munies d'une lisière de recouvrement thermosoudable, telles que décrites dans le document EP-A O 156 536, se heurte à la difficulté créée par l'absence d'étanchéité de l'assemblage tant que la lisière n'a pas été soudée à chaud.On the other hand, it is known that the use of sealing sheets provided with a heat-sealable edge of covering, as described in document EP-A 0 156 536, comes up against the difficulty created by the absence of tightness of the assembly until the selvage has not been heat welded.
La présente invention vise à remédier à ces inconvénients en proposant un moyen qui garantit l'étanchéité de la première couche d'étanchéité auto-adhésive d'un système d'étanchéité du type de celui décrit ci-dessus.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.
La présente invention consiste à mettre en oeuvre, en vue de constituer la première couche d'étanchéité, des feuilles d'étanchéité auto-adhésives comportant en bordure, unilatéralement, un espace soudable à chaud, en sorte que la lisière de recouvrement de chaque feuille soit constituée de deux parties dont l'une, en retrait par rapport à la bordure, est auto-adhésive à froid et l'autre, en bordure, est thermosoudable.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.
La présente invention a ainsi pour objet un procédé d'isolation et d'étanchéité comprenant l'application successive, sur le support à protéger, de plaques de polystyrène expansé fixées au moyen d'une colle à froid, puis d'une première couche d'étanchéité auto-adhésive et enfin d'une seconde couche d'étanchéité soudée à chaud sur la première, ce procédé présentant la caractéristique de mettre en oeuvre des feuilles d'étanchéité auto-adhésives qui constituent également un objet de l'invention.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.
Les feuilles d'étanchéité selon l'invention présentent la caractéristique de comporter une face inférieure auto-adhésive sur toute leur surface, à l'exception d'un galon thermosoudable situé en bordure, unilatéralement, et constituant partie de la lisière de recouvrement desdites feuilles, l'autre partie de cette lisière étant auto-adhésive.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.
Les feuilles d'étanchéité selon l'invention sont de préférence réalisées en un matériau à base de bitume oxydé ou de bitume modifié par des polymères, renforcé par une armature en fibres organiques telles que des fibres de polyester ou de polyamide tissées ou non tissées, tel que décrit dans le document EP-A-0 178 353.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.
La face auto-adhésive des feuilles d'étanchéité selon l'invention est protégée par une feuille de protection détachable au moment de l'emploi, telle qu'une feuille de papier siliconé ou une feuille de polypropylène siliconé.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.
Le galon ménagé en bordure des feuilles d'étanchéité selon l'invention a de préférence une largeur de l'ordre de 5 cm, approximativement égale à la moitié de la largeur de la lisière de recouvrement, laquelle est généralement large de 8 à 12 cm. Il peut être avantageusement recouvert d'un film d'une matière synthétique thermo-fusible, telle que le polypropylène ou le polyéthylène, destiné à en faciliter le soudage.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.
L'avantage inhérent à la présente invention réside dans le fait que la partie auto-adhésive de la lisière de recouvrement assure une étanchéité suffisante de la première couche d'étanchéité jusqu'au soudage à chaud de l'autre partie, lequel garantit la parfaite étanchéité de ladite couche.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.
La présente invention est décrite plus en détail ci-après en référence au dessin annexé, qui représente une coupe d'un système d'isolation et d'étanchéité selon l'invention, étant bien entendu que cette description ne présente aucun caractère limitatif.The present invention is described in more detail below with reference to the accompanying drawing, which shows a section of an insulation and sealing system according to the invention, it being understood that this description has no limiting character.
Sur le dessin annexé, on voit le support 1 à protéger recouvert d'une couche de polystyrène expansé 2 sur laquelle est appliquée une première couche d'étanchéité formée de feuilles 3 et 4 comportant une sous-face adhésive 5. La lisière de recouvrement des feuilles 3 et 4 est formée d'une partie 5' auto-adhésive et d'une partie 6 soudée à chaud. La première couche d'étanchéité 3-4 est recouverte par une seconde couche d'étanchéité 7 soudée à chaud.In the accompanying drawing, 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
A titre d'exemple de feuilles d'étanchéité selon l'invention, on peut donner celle présentant les caractéristiques ci-après :
- composition : mélange de bitume et de styrène-butadiène-styrène (SBS)
- armature : nappe complexe de fibres de polyester non tissées et d'une grille de verre, d'un grammage de 180 g/m².
- sous-face auto-adhésive
- bordure thermosoudable de 5 cm de large, recouverte par un film de polypropylène d'épaisseur 8 micromètres.
- composition: mixture of bitumen and styrene-butadiene-styrene (SBS)
- frame: complex sheet of non-woven polyester fibers and a glass grid, weighing 180 g / m².
- self-adhesive backing
- 5 cm wide heat sealable edge, covered with a polypropylene film 8 microns thick.
Cette feuille possède, entre autres propriétés :
- résistance à la traction : 1 000 newton/5 c
- allongement à la rupture : 30 %
- résistance au poinçonnement statique : supérieure à 15 kg
- souplesse à froid à - 15°C : pas de fissure
- tenue à la chaleur : supérieure à 100°C.
- résistance à la déchirure : supérieure à 300 N.
- épaisseur nominale : 3 mm.
- tensile strength: 1000 newton / 5 c
- elongation at break: 30%
- resistance to static punching: greater than 15 kg
- cold flexibility at - 15 ° C: no crack
- heat resistance: greater than 100 ° C.
- tear resistance: greater than 300 N.
- nominal thickness: 3 mm.
Bien entendu, les feuilles d'étanchéité selon l'invention, si elles trouvent une application particulièrement avantageuse dans le système d'isolation et d'étanchéité qui vient d'être décrit, peuvent également être mises en oeuvre avec profit dans des systèmes d'étanchéité différents faisant appel à des feuilles d'étanchéité auto-adhésives.Of course, the 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.
Claims (5)
- A method of thermally insulating and sealing roofs, comprising the successive application, to the support (1) for protection, of expanded polystyrene panels (2) fixed by means of a cold glue, followed by a second self-adhesive sealing layer, and finally a second sealing layer (7) hot-welded to the first said layer, characterised in that the first sealing layer is formed by applying sealing films (3, 4) having an adhesive underside (5) over their entire surface, except for a thermo-weldable strip (6) situated at the edge, unilaterally, and forming part of the overlap edge of said films, of which the other part (5' ), which is set back from the strip (6), is self-adhesive, the application of the said sealing films (3, 4) being carried out by using, in a first stage, the self-adhesive part (5' ) of the overlap strip and then, in a second stage, the thermo-weldable strip (6) which is hot-welded.
- A sealing film for performing the method according to claim 1, characterised in that it is made from a bitumen-based material reinforced by a fibrous reinforcement and in that it comprises a self-adhesive underside over its entire surface except for a thermo-weldable strip (6) situated at the edge, unilaterally, and forming part of the overlap strip of the said film, the other part (5' ) of which is self-adhesive.
- A sealing film according to claim 2, characterised in that the said thermo-weldable strip (6) is covered with a film of thermo-fusible synthetic material selected from the group comprising polypropylene and polyethylene.
- A sealing film according to any one of the preceding claims, characterised in that it is reinforced elastomer bitumen based.
- A sealing film according to any one of the preceding claims, characterised in that it is reinforced by a fibrous reinforcement selected from the group comprising wovens and non-wovens made of polyesters and wovens and non-wovens made of polyamides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT87440087T ATE65570T1 (en) | 1987-11-19 | 1987-12-24 | CONSTRUCTION FOR THERMAL INSULATION AND SEALING OF ROOFS AND SEALING COAT FOR THEIR USE. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8716231 | 1987-11-19 | ||
| FR8716231A FR2623542B2 (en) | 1983-10-04 | 1987-11-19 | ROOF INSULATION SYSTEM |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0316497A1 EP0316497A1 (en) | 1989-05-24 |
| EP0316497B1 true EP0316497B1 (en) | 1991-07-24 |
Family
ID=9357079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP87440087A Expired - Lifetime EP0316497B1 (en) | 1987-11-19 | 1987-12-24 | System for the heat insulation and the impermeability of roofs, and impermeable membrane for its application |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0316497B1 (en) |
| AT (1) | ATE65570T1 (en) |
| CA (1) | CA1333321C (en) |
| DE (1) | DE3771723D1 (en) |
| ES (1) | ES2023938B3 (en) |
| GR (1) | GR3002933T3 (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2552801B1 (en) * | 1983-10-04 | 1986-05-30 | Soprema Sa | ROOF INSULATION SYSTEM |
| DE3578504D1 (en) * | 1984-03-23 | 1990-08-09 | Minnesota Mining & Mfg | WELDABLE MEMBRANE AND TRANSMISSION TAPE FOR USE IN MANUFACTURING THE SAME. |
| EP0178353B1 (en) * | 1984-10-16 | 1988-06-01 | Coal Industry (Patents) Limited | Improvements in roofing |
| DK150586C (en) * | 1985-05-31 | 1987-10-05 | Villadsens Fab As Jens | PROCEDURE FOR THE PREPARATION OF A WATERPROOF COATING ON A SUBSTRATE AND THE COATED MATERIAL FOR USE BY THE PROCEDURE |
-
1987
- 1987-12-24 DE DE8787440087T patent/DE3771723D1/en not_active Expired - Lifetime
- 1987-12-24 ES ES87440087T patent/ES2023938B3/en not_active Expired - Lifetime
- 1987-12-24 EP EP87440087A patent/EP0316497B1/en not_active Expired - Lifetime
- 1987-12-24 AT AT87440087T patent/ATE65570T1/en active
-
1988
- 1988-01-08 CA CA000556095A patent/CA1333321C/en not_active Expired - Fee Related
-
1991
- 1991-10-17 GR GR91401566T patent/GR3002933T3/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| ES2023938B3 (en) | 1992-02-16 |
| CA1333321C (en) | 1994-12-06 |
| DE3771723D1 (en) | 1991-08-29 |
| EP0316497A1 (en) | 1989-05-24 |
| GR3002933T3 (en) | 1993-01-25 |
| ATE65570T1 (en) | 1991-08-15 |
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