EP0524061B1 - Insulating panel for roofs and method and apparatus for the manufacture thereof - Google Patents

Insulating panel for roofs and method and apparatus for the manufacture thereof Download PDF

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Publication number
EP0524061B1
EP0524061B1 EP92401974A EP92401974A EP0524061B1 EP 0524061 B1 EP0524061 B1 EP 0524061B1 EP 92401974 A EP92401974 A EP 92401974A EP 92401974 A EP92401974 A EP 92401974A EP 0524061 B1 EP0524061 B1 EP 0524061B1
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EP
European Patent Office
Prior art keywords
covering
felt
recesses
insulating panel
panel according
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Expired - Lifetime
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EP92401974A
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German (de)
French (fr)
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EP0524061A1 (en
Inventor
René Hecquet
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Saint Gobain Isover SA France
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Saint Gobain Isover SA France
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    • 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
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
    • E04B1/78—Heat insulating elements
    • E04B1/80—Heat insulating elements slab-shaped
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D3/00—Roof covering by making use of flat or curved slabs or stiff sheets
    • E04D3/35—Roofing slabs or stiff sheets comprising two or more layers, e.g. for insulation
    • E04D3/351—Roofing slabs or stiff sheets comprising two or more layers, e.g. for insulation at least one of the layers being composed of insulating material, e.g. fibre or foam material

Definitions

  • the invention relates to insulating panels for roofs and more particularly to panels designed to respond to the problem of insulating waterproofing support for flat or low-slope roofs, with metal frame, wood or concrete.
  • These panels are formed of a felt or mattress of mineral wool, rock or glass, and of a coating for example a glass veil impregnated with bitumen, the coating being intended to receive at least one layer of a material d sealing.
  • These panels are fixed directly to the ground or the roof framework, generally by gluing when the surface to be covered is flat, or by mechanical fixing, in particular with screws and washers, when it is a pose on a framework. metallic or wooden.
  • the panels are coated with at least one sealing layer, generally a bituminous coating stickable with bitumen or weldable by flame heating.
  • Document US-A-4 766 024 describes an anchoring of the waterproofing coating deposited on site on a perlite panel provided with a layer of flame-protective coating, the panel with its coating layer being formed by a papermaking process then provided with recesses for the subsequent anchoring of the waterproofing coating on the site.
  • the invention provides an insulating panel making the reliability of the roof less dependent on scrupulous compliance with the installation conditions.
  • the invention provides an insulating panel having a reinforced adhesion between the mineral wool mattress and the waterproofing support coating, in particular providing better resistance to tearing or peeling of the cover in the event of severe storms.
  • the panel according to the invention comprises a mattress or felt of mineral wool having on its surface intended to receive the waterproofing support coating, recesses forming anchor points for the adhesive serving to adhere the waterproofing support coating to the felt. before the panel is put on site.
  • the recesses according to the invention must be large enough in section and in depth to allow satisfactory anchoring, that is to say resistant to different shear forces. Indeed, the plaintiff realized that the tearing of the cover in the event of a severe storm was due, in particular, to a weakening of the adhesion between the covering and the mattress during the realization of the insulation, due to the shear forces to which the panel is subjected when the applicator steps on it, which is generally the case when making the seal.
  • the recesses must not, however, be too large, in particular with respect to the thickness of the mattress, in order not to create points of mechanical weakness in the panel, or else in order to avoid a loss of qualities. insulation.
  • the recesses have a depth of between 5 and 10 mm.
  • the sectional shape of the recesses can be very varied. It can be squares, rectangles, circles or other geometric shapes, making it possible to anchor the glue and therefore the coating.
  • the recesses can advantageously be made by punching the panel.
  • the shapes of the recesses then obviously depend on the shapes of the punches.
  • each recess In addition to the shape of each recess, the arrangement of the recesses with respect to each other is a characteristic of the panel according to the invention.
  • the recesses can thus be arranged along lines of very different shapes. However, care should be taken not to use provisions which could weaken the mechanical characteristics of the panels. With this in mind, it is preferable to avoid a layout following a straight line parallel to the short side of the panel.
  • the cross-sectional area of the recesses is preferably within a determined range, and depends on the desired gripping forces and the adhesive used, this preferably being bitumen as in the case of known panels and for the same reasons which made it its selection: reduced cost, ease of application, compatibility with the sealing coating, etc.
  • the surface of the recesses is advantageously between 0.2 and 2 cm2.
  • the ratio p / S of the depth (p) of a recess on its average section (S), expressed in unit mm / mm2 is generally less than 0.3 unit and preferably less than or equal to 0 , 1 unit.
  • the ratio of the surface of the recesses to the total surface of the panel is between 0.05 and 0.15.
  • the panel covering may consist of a sheet or a veil, preferably a glass veil, impregnated with bitumen or another glue (adhesive) which can be housed in the recesses or anchoring points provided on the mineral wool mattress.
  • the coating can overlap two sides of the panel and comprise, in addition to the glass veil, a hot-melt film such as that described in the document already cited EP-A-0 109 879.
  • the invention also relates to a method and a device for the continuous manufacture of the insulating panels described above.
  • a rigid insulation blanket is made continuously of high density mineral fibers, by conventional methods for rock wool or glass wool, recesses are then advantageously created by punching the surface intended for receive the glued coating, in order to form anchoring points regularly distributed over the surface for the glue used for gluing the coating, the glue and the coating are then applied to the face provided with the recesses.
  • One of the advantages of punching compared to other techniques for producing the recesses is its simplicity of production. Another advantage is that it does not generate dust compared to machining the mattress.
  • the adhesive is applied to the mattress simultaneously with the covering. This is particularly the case when the coating uses bitumen as an adhesive and is impregnated with it before it is applied to the mattress.
  • the coating which is applied continuously has a width corresponding to the width of the mattress increased by a little less than twice the thickness of the latter, which allows partial overlap on both sides of the panel.
  • the coating may advantageously include a sheet of plastic material called separation as in the case of the panel described in EP-A-0 109 879 already cited and whose description is incorporated here by this reference.
  • the invention also relates to a device for implementing the method and manufacturing the panel. insulating.
  • the device comprises the known manufacturing means for producing the insulating panel, that is to say a fiberizing device with incorporation of the binder at the time of fiberizing, a conveyor receiving the fibers, means bringing the mattress to the thickness desired and an oven for the polymerization of the binder, means for supplying the coating and its bonding to the underside of the panel, cutting means.
  • a system arranged between the oven for the polymerization of the binder and the coating bonding station which comprises a stamping roller rotating on its axis at line speed, projecting bosses or punches distributed over its periphery, and plumb with, above the conveyor, means making it possible to apply constant pressure to the mineral wool felt to keep it in contact with the stamping roller, these means advantageously being a roller presser rotating on its axis.
  • the stamping roller rotates freely on its axis while the pressing roller is motorized at line speed.
  • the stamping roller can be motorized.
  • Means for adjusting the height of the rollers make it possible to vary the penetration of the punches in the mineral wool according to the desired depth for the recesses thus created, which, as indicated previously, may advantageously be between 5 and 10 mm.
  • This insulating panel can be used for the insulation of flat or slightly inclined roofs.
  • the fixed panels are coated on site with a waterproof coating.
  • the waterproofing coating can be formed from a glass veil impregnated with adhesive, preferably bitumen.
  • a suitable glass veil can be based on insulating glass fibers or so-called textile fibers, obtained by the dry or wet method. This veil can be reinforced with longitudinal reinforcing glass strands.
  • the coating can also be a composite formed of a glass veil and a grid reinforcing the tear resistance of the veil, the whole being impregnated with bitumen.
  • the insulating panel according to the invention has very good resistance when it is subjected to trampling forces, and in particular the adhesion between the felt and the coating remains high, compared to an insulating panel of the same composition, but without dots. anchor.
  • FIG 2 there is shown a device for punching the panels. This device is placed between the oven (not shown), in which the felt, in form of a continuous strip, stiffens by polymerization of the binder and the coating application station on the underside of the panel.
  • the felt 10 arrives at the punching station 11 after cutting and possible machining of the strips 12, 13.
  • a stamping roller 14 which can rotate freely around its axis 15, provided on its periphery with punches in the form of a pyramid trunk with rectangular base 16 placed along lines 17 in the form propeller.
  • a pressure roller 18 motorized at line speed is disposed in line with this stamping roller.
  • This pressure roller 18 is supported at its ends 19 and 20 by two bent arms 21, 22 mounted to pivot at the elbows 23, 24 around axes 25, 26 carried by bearings 27, 28 on a frame 29 and connected to the rods 30, 31 of two jacks 32, 33 by their ends 34, 35.
  • the two jacks are mounted articulated around axes 36, 37 carried by the frame 29.
  • the device Downstream of the stamping roller, the device comprises a roller 38 allowing the application of the coating 39 soaked in bitumen 41 on the underside 40 freshly punched of the felt 10.
  • the anchoring according to the invention of the covering which will serve as a support thereafter on site for the waterproofing covering, by being produced on an industrial manufacturing line ensures the reliability of the insulation system, in contrast to an anchoring waterproofing coating directly in the panel produced on site as described in document US-A-4,766,024.

Abstract

The invention relates to panels comprising a mineral wall felt and a waterproofing support covering. The panels according to the invention have, at the surface of the felt (2) on which a covering (6) is adhesively bonded, recesses (4) distributed over its entire surface which are used as anchoring points for the adhesive of the covering (6). These recesses are produced by punching. These panels may be used to insulate flat or mildly sloping roofs. <IMAGE>

Description

L'invention concerne des panneaux isolants pour toiture et plus particulièrement des panneaux conçus pour répondre au problème d'isolation support d'étanchéité pour les toitures planes ou à faible pente, à ossature métallique, en bois ou en béton.The invention relates to insulating panels for roofs and more particularly to panels designed to respond to the problem of insulating waterproofing support for flat or low-slope roofs, with metal frame, wood or concrete.

Ces panneaux sont formés d'un feutre ou matelas de laine minérale, de roche ou de verre, et d'un revêtement par exemple un voile de verre imprégné de bitume, le revêtement étant destiné à recevoir au moins une couche d'un matériau d'étanchéité.These panels are formed of a felt or mattress of mineral wool, rock or glass, and of a coating for example a glass veil impregnated with bitumen, the coating being intended to receive at least one layer of a material d sealing.

Ce type de panneaux est décrit par exemple dans la publication de brevet EP-A-0 109 879 qui concerne en particulier un panneau rigide de laine minérale de forte densité, revêtu d'un voile de verre imprégné de bitume et rebordé sur deux côtés, et d'un film de surface. Dans ce type de panneau, l'adhésion entre le revêtement et le matelas de laine minérale est obtenue par le bitume d'imprégnation du voile.This type of panel is described for example in patent publication EP-A-0 109 879 which relates in particular to a rigid panel of high density mineral wool, coated with a glass veil impregnated with bitumen and flipped on two sides, and a surface film. In this type of panel, the adhesion between the covering and the mineral wool mattress is obtained by the bitumen for impregnating the veil.

Ces panneaux sont fixés directement sur le sol ou l'ossature du toit, généralement par collage lorsque la surface à recouvrir est plane, ou par fixation mécanique, notamment avec vis et rondelles, lorsqu'il s'agit d'une pose sur une ossature métallique ou en bois.These panels are fixed directly to the ground or the roof framework, generally by gluing when the surface to be covered is flat, or by mechanical fixing, in particular with screws and washers, when it is a pose on a framework. metallic or wooden.

Puis les panneaux sont revêtus d'au moins une couche d'étanchéité, généralement un revêtement bitumineux collable avec du bitume ou soudable par chauffage à la flamme.Then the panels are coated with at least one sealing layer, generally a bituminous coating stickable with bitumen or weldable by flame heating.

Ces panneaux et leur pose donnent généralement entière satisfaction lorsqu'ils sont utilisés pour isoler des toitures de bâtiments situés dans des zones climatiques très variées, même celles sujettes à de violentes tempêtes, à condition toutefois de respecter les règles de pose. En particulier lorsque cette pose utilise des fixations métalliques, il est de règle de ne pas circuler de manière incessante sur les panneaux posés avant qu'ils ne soient pourvus de la ou des couches d'étanchéité.These panels and their installation generally give complete satisfaction when they are used to insulate roofs of buildings located in a wide variety of climatic zones, even those subject to severe storms, provided, however, that the installation rules are respected. In particular when this installation uses metal fasteners, it is a rule not to circulate incessantly on the panels installed before they are provided with the sealing layer or layers.

Le non respect de ces règles, semble-t-il a pu rendre des couvertures sujettes à détérioration lors de très violentes tempêtes. On a pu ainsi observer des phénomènes d'arrachement partiel de la couverture.Failure to comply with these rules, it seems, could have made blankets subject to deterioration during very severe storms. We were thus able to observe phenomena of partial tearing of the cover.

Le document US-A-4 766 024 décrit un ancrage du revêtement d'étanchéité déposé sur le chantier sur un panneau de perlite muni d'une couche de revêtement de protection contre la flamme, le panneau avec sa couche de revêtement étant formé par un procédé papetier puis pourvu d'évidements pour l'ancrage ultérieur du revêtement d'étanchéité sur le chantier.Document US-A-4 766 024 describes an anchoring of the waterproofing coating deposited on site on a perlite panel provided with a layer of flame-protective coating, the panel with its coating layer being formed by a papermaking process then provided with recesses for the subsequent anchoring of the waterproofing coating on the site.

Le bon ancrage et la fiabilité ultérieure de la couverture dépendent encore ici des conditions de pose sur le chantier.The good anchoring and the subsequent reliability of the roofing still depend here on the conditions of installation on the site.

L'invention propose un panneau isolant rendant la fiabilité de la couverture moins tributaire des respects scrupuleux des conditions de pose.The invention provides an insulating panel making the reliability of the roof less dependent on scrupulous compliance with the installation conditions.

L'invention propose un panneau isolant présentant une adhésion renforcée entre le matelas de laine minérale et le revêtement support d'étanchéité, procurant notamment une meilleure résistance à l'arrachement ou au pelage de la couverture en cas de tempêtes violentes.The invention provides an insulating panel having a reinforced adhesion between the mineral wool mattress and the waterproofing support coating, in particular providing better resistance to tearing or peeling of the cover in the event of severe storms.

Le panneau selon l'invention comprend un matelas ou feutre de laine minérale présentant à sa surface destinée à recevoir le revêtement support d'étanchéité des évidements formant des points d'ancrage pour la colle servant à coller le revêtement support d'étanchéité sur le feutre avant la mise sur le chantier du panneau.The panel according to the invention comprises a mattress or felt of mineral wool having on its surface intended to receive the waterproofing support coating, recesses forming anchor points for the adhesive serving to adhere the waterproofing support coating to the felt. before the panel is put on site.

Les évidements selon l'invention doivent être suffisamment importants en section et en profondeur pour permettre un ancrage satisfaisant, c'est-à-dire résistant à différents efforts en cisaillement. En effet, la demanderesse s'est aperçue que l'arrachement de la couverture en cas de tempête violente était dû, notamment, à un affaiblissement de l'adhésion entre le revêtement et le matelas au cours de la réalisation de l'isolation, dû aux forces de cisaillement auxquelles est soumis le panneau lorsque l'applicateur marche sur lui, ce qui est généralement le cas lors de la réalisation de l'étanchéité.The recesses according to the invention must be large enough in section and in depth to allow satisfactory anchoring, that is to say resistant to different shear forces. Indeed, the plaintiff realized that the tearing of the cover in the event of a severe storm was due, in particular, to a weakening of the adhesion between the covering and the mattress during the realization of the insulation, due to the shear forces to which the panel is subjected when the applicator steps on it, which is generally the case when making the seal.

Les évidements ne doivent cependant pas être trop importants, notamment par rapport à l'épaisseur du matelas, afin de ne pas créer de points de faiblesse mécanique dans le panneau, ou encore afin d'éviter une perte des qualités d'isolation. Ainsi, selon une caractéristique avantageuse de l'invention, les évidements présentent une profondeur comprise entre 5 et 10 mm.The recesses must not, however, be too large, in particular with respect to the thickness of the mattress, in order not to create points of mechanical weakness in the panel, or else in order to avoid a loss of qualities. insulation. Thus, according to an advantageous characteristic of the invention, the recesses have a depth of between 5 and 10 mm.

La forme en section des évidements peut être très variée. Ce peut être des carrés, des rectangles, des cercles ou autres formes géométriques, permettant d'assurer l'ancrage de la colle et donc du revêtement.The sectional shape of the recesses can be very varied. It can be squares, rectangles, circles or other geometric shapes, making it possible to anchor the glue and therefore the coating.

Les évidements peuvent être avantageusement réalisés par poinçonnage du panneau. Les formes des évidements dépendent alors évidemment des formes des poinçons.The recesses can advantageously be made by punching the panel. The shapes of the recesses then obviously depend on the shapes of the punches.

Outre la forme de chaque évidement, la disposition des évidements les uns par rapport aux autres est une caractéristique du panneau selon l'invention.In addition to the shape of each recess, the arrangement of the recesses with respect to each other is a characteristic of the panel according to the invention.

Les évidements peuvent ainsi être disposés suivant des lignes de formes très diverses. Il faut cependant éviter d'utiliser des dispositions pouvant affaiblir les caractéristiques mécaniques des panneaux. Dans cet esprit, il est préférable d'éviter une disposition suivant une ligne droite parallèle au petit côté du panneau.The recesses can thus be arranged along lines of very different shapes. However, care should be taken not to use provisions which could weaken the mechanical characteristics of the panels. With this in mind, it is preferable to avoid a layout following a straight line parallel to the short side of the panel.

En revanche, une disposition selon une forme en hélice se révèle avantageuse.On the other hand, an arrangement in a helical shape proves to be advantageous.

Comme pour leur profondeur, la surface en section des évidements se situe de préférence dans une fourchette déterminée, et fonction des forces d'accrochage désirées et de la colle utilisée, celle-ci étant de préférence du bitume comme dans le cas des panneaux connus et pour les mêmes raisons qui en ont fait sa sélection : coût réduit, facilité d'application, compatibilité avec le revêtement d'étanchéité, etc... Ainsi la surface des évidements est avantageusement comprise entre 0,2 et 2 cm².As for their depth, the cross-sectional area of the recesses is preferably within a determined range, and depends on the desired gripping forces and the adhesive used, this preferably being bitumen as in the case of known panels and for the same reasons which made it its selection: reduced cost, ease of application, compatibility with the sealing coating, etc. Thus the surface of the recesses is advantageously between 0.2 and 2 cm².

D'autre part, le rapport p/S de la profondeur (p) d'un évidement sur sa section (S) moyenne, exprimé en unité mm/mm² est généralement inférieur à 0,3 unité et de préférence inférieur ou égal à 0,1 unité.On the other hand, the ratio p / S of the depth (p) of a recess on its average section (S), expressed in unit mm / mm² is generally less than 0.3 unit and preferably less than or equal to 0 , 1 unit.

Selon une caractéristique de l'invention, le rapport de la surface des évidements à la surface totale du panneau est compris entre 0,05 et 0,15.According to a characteristic of the invention, the ratio of the surface of the recesses to the total surface of the panel is between 0.05 and 0.15.

Le revêtement du panneau peut être constitué d'une feuille ou d'un voile, de préférence un voile de verre, imprégné de bitume ou d'une autre colle (adhésif) pouvant se loger dans les évidements ou points d'ancrage prévus sur le matelas de laine minérale.The panel covering may consist of a sheet or a veil, preferably a glass veil, impregnated with bitumen or another glue (adhesive) which can be housed in the recesses or anchoring points provided on the mineral wool mattress.

Le revêtement peut reborder deux côtés du panneau et comporter outre le voile de verre, un film thermofusible tel que celui décrit dans le document déjà cité EP-A-0 109 879.The coating can overlap two sides of the panel and comprise, in addition to the glass veil, a hot-melt film such as that described in the document already cited EP-A-0 109 879.

L'invention concerne également un procédé et un dispositif pour la fabrication en continu des panneaux isolants décrits ci-dessus.The invention also relates to a method and a device for the continuous manufacture of the insulating panels described above.

Selon le procédé, on fabrique en continu un matelas d'isolation rigide en fibres minérales, de forte densité, par les procédés classiques pour la laine de roche ou la laine de verre, on crée ensuite des évidements avantageusement par poinçonnage de la surface destinée à recevoir le revêtement collé, afin de former des points d'ancrage régulièrement répartis sur la surface pour la colle utilisée pour le collage du revêtement, on applique ensuite la colle et le revêtement sur la face pourvue des évidements.According to the method, a rigid insulation blanket is made continuously of high density mineral fibers, by conventional methods for rock wool or glass wool, recesses are then advantageously created by punching the surface intended for receive the glued coating, in order to form anchoring points regularly distributed over the surface for the glue used for gluing the coating, the glue and the coating are then applied to the face provided with the recesses.

Un des avantages du poinçonnage par rapport à d'autres techniques de réalisation des évidements est sa simplicité de réalisation. Un autre avantage est qu'il ne génère pas de poussières comparé à un usinage du matelas.One of the advantages of punching compared to other techniques for producing the recesses is its simplicity of production. Another advantage is that it does not generate dust compared to machining the mattress.

Dans une forme préférée, la colle est apportée sur le matelas simultanément au revêtement. C'est le cas notamment lorsque le revêtement utilise du bitume en tant que colle et qu'il en est imprégné avant son application sur le matelas.In a preferred form, the adhesive is applied to the mattress simultaneously with the covering. This is particularly the case when the coating uses bitumen as an adhesive and is impregnated with it before it is applied to the mattress.

Avantageusement le revêtement que l'on applique en continu présente une largeur correspondant à la largeur du matelas augmentée d'un peu moins de deux fois l'épaisseur de celui-ci, ce qui permet un recouvrement partiel des deux côtés du panneau.Advantageously, the coating which is applied continuously has a width corresponding to the width of the mattress increased by a little less than twice the thickness of the latter, which allows partial overlap on both sides of the panel.

Le revêtement peut comprendre avantagement une feuille de matière plastique dite de séparation comme dans le cas du panneau décrit dans l'EP-A-0 109 879 déjà cité et dont on incorpore ici la description par cette référence.The coating may advantageously include a sheet of plastic material called separation as in the case of the panel described in EP-A-0 109 879 already cited and whose description is incorporated here by this reference.

L'invention concerne également un dispositif pour la mise en oeuvre du procédé et la fabrication du panneau isolant.The invention also relates to a device for implementing the method and manufacturing the panel. insulating.

Le dispositif comprend les moyens de fabrication connus pour la réalisation du panneau isolant, c'est-à-dire un dispositif de fibrage avec incorporation du liant au moment du fibrage, un convoyeur recevant les fibres, des moyens amenant le matelas à l'épaisseur désirée et une étuve pour la polymérisation du liant, des moyens pour l'apport du revêtement et son collage sur la face inférieure du panneau, des moyens de découpe. Il comprend en outre selon l'invention un système disposé entre l'étuve pour la polymérisation du liant et le poste de collage du revêtement, qui comprend un rouleau emboutisseur tournant sur son axe à la vitesse de la ligne, portant en saillie des bossages ou poinçons répartis sur sa périphérie, et à l'aplomb duquel, au-dessus du transporteur, des moyens permettant d'appliquer une pression constante sur le feutre en laine minérale pour le maintenir en contact avec le rouleau emboutisseur, ces moyens étant avantageusement un rouleau presseur tournant sur son axe.The device comprises the known manufacturing means for producing the insulating panel, that is to say a fiberizing device with incorporation of the binder at the time of fiberizing, a conveyor receiving the fibers, means bringing the mattress to the thickness desired and an oven for the polymerization of the binder, means for supplying the coating and its bonding to the underside of the panel, cutting means. It further comprises according to the invention a system arranged between the oven for the polymerization of the binder and the coating bonding station, which comprises a stamping roller rotating on its axis at line speed, projecting bosses or punches distributed over its periphery, and plumb with, above the conveyor, means making it possible to apply constant pressure to the mineral wool felt to keep it in contact with the stamping roller, these means advantageously being a roller presser rotating on its axis.

Dans une réalisation du dispositif, le rouleau emboutisseur tourne librement sur son axe alors que le rouleau presseur est motorisé à la vitesse de la ligne.In one embodiment of the device, the stamping roller rotates freely on its axis while the pressing roller is motorized at line speed.

Dans une variante, le rouleau emboutisseur peut être motorisé.Alternatively, the stamping roller can be motorized.

Des moyens de réglage en hauteur des rouleaux permettent de faire varier la pénétration des poinçons dans la laine minérale selon la profondeur désirée pour les évidements ainsi crées, qui comme indiquée préalablement, peut avantageusement être comprise entre 5 et 10 mm.Means for adjusting the height of the rollers make it possible to vary the penetration of the punches in the mineral wool according to the desired depth for the recesses thus created, which, as indicated previously, may advantageously be between 5 and 10 mm.

D'autres avantages et caractéristiques de l'invention apparaîtront dans la description suivante faite en référence aux figures qui représentent :

  • . figure 1 : un panneau selon l'invention,
  • . figure 2 : une vue schématique d'une partie du dispo-tif de fabrication du panneau.
Other advantages and characteristics of the invention will appear in the following description made with reference to the figures which represent:
  • . FIG. 1 : a panel according to the invention,
  • . Figure 2 : a schematic view of part of the panel manufacturing device.

Le panneau 1 représenté sur la figure 1 est formé d'un feutre 2 de laine de roche dont le taux de liant est de 5 % en poids. Il présente une masse volumique de 160 kg/m³ et une épaisseur de 80 mm. Sa surface supérieure 3 présente des évidements 4 obtenus par poinçonnement et disposés suivant des lignes 5 non parallèles au petit côté du panneau, chacun d'eux présentant une forme tronconique avec une section rectangulaire à la base de 1 cm² environ de surface et une profondeur de 10 mm environ (rapport p/S = 0,1). Sur cette face 3 est collé un revêtement composite 6 formé par un voile de verre 7 imprégné de bitume 8 et d'un film thermoplastique 9, l'application du revêtement s'effectuant directement après l'imprégnation du voile par le bitume afin que cette colle puisse pénétrer dans les évidements prévus sur la face 3 du feutre et former ainsi des ancrages pour le revêtement, améliorant par là l'adhésion entre le revêtement et le feutre.The panel 1 shown in FIG. 1 is formed from a felt 2 of rock wool whose binder content is 5% by weight. It has a density of 160 kg / m³ and a thickness of 80 mm. Its upper surface 3 presents recesses 4 obtained by punching and arranged along lines 5 not parallel to the short side of the panel, each of them having a frustoconical shape with a rectangular section at the base of approximately 1 cm² of surface and a depth of approximately 10 mm (ratio p / S = 0.1). On this face 3 is bonded a composite coating 6 formed by a glass veil 7 impregnated with bitumen 8 and with a thermoplastic film 9, the application of the coating taking place directly after the impregnation of the veil by the bitumen so that this adhesive can penetrate into the recesses provided on the face 3 of the felt and thus form anchors for the covering, thereby improving the adhesion between the covering and the felt.

Ce panneau isolant peut être utilisé pour l'isolation des toitures planes ou peu inclinées.This insulating panel can be used for the insulation of flat or slightly inclined roofs.

Lorsqu'il s'agit d'isoler une toiture à ossature métallique, horizontale, formée de profilés, les panneaux sont fixés mécaniquement sur les profilés à l'aide de vis et rondelles, le revêtement étant évidemment orienté vers l'extérieur.When it comes to insulating a metal frame roof, horizontal, formed of profiles, the panels are mechanically fixed on the profiles using screws and washers, the covering being obviously oriented towards the outside.

Pour compléter l'étanchéité, les panneaux fixés sont revêtus sur le chantier par un revêtement d'étanchéité.To complete the waterproofing, the fixed panels are coated on site with a waterproof coating.

Le revêtement (ou parement) d'étanchéité peut être formé d'un voile de verre imprégné d'adhésif, de préférence le bitume. Un voile de verre adapté peut être à base de fibres de verre d'isolation ou de fibres dites textiles, obtenu par voie sèche ou voie humide. Ce voile peut être renforcé par des fils de verre de renfort longitudinaux.The waterproofing coating (or facing) can be formed from a glass veil impregnated with adhesive, preferably bitumen. A suitable glass veil can be based on insulating glass fibers or so-called textile fibers, obtained by the dry or wet method. This veil can be reinforced with longitudinal reinforcing glass strands.

Le revêtement peut aussi être un composite formé d'un voile de verre et d'une grille renforçant la résistance au déchirement du voile, le tout étant imprégné par du bitume.The coating can also be a composite formed of a glass veil and a grid reinforcing the tear resistance of the veil, the whole being impregnated with bitumen.

Le panneau isolant selon l'invention présente une très bonne tenue lorsqu'il est soumis à des efforts de piétinement, et en particulier l'adhérence entre le feutre et le revêtement reste élevée, comparé à un panneau isolant de même composition, mais sans points d'ancrage.The insulating panel according to the invention has very good resistance when it is subjected to trampling forces, and in particular the adhesion between the felt and the coating remains high, compared to an insulating panel of the same composition, but without dots. anchor.

Sur la figure 2, on a représenté un dispositif pour le poinçonnement des panneaux. Ce dispositif est placé entre l'étuve (non représentée), dans laquelle le feutre, en forme d'une bande continue, se rigidifie par polymérisation du liant et le poste d'application du revêtement sur la face inférieure du panneau.In Figure 2, there is shown a device for punching the panels. This device is placed between the oven (not shown), in which the felt, in form of a continuous strip, stiffens by polymerization of the binder and the coating application station on the underside of the panel.

Le feutre 10 arrive au poste de poinçonnement 11 après découpe et usinage éventuel des bandes 12, 13.The felt 10 arrives at the punching station 11 after cutting and possible machining of the strips 12, 13.

Sous toute la largeur du ruban continu de feutre est disposé transversalement un rouleau emboutisseur 14 pouvant tourner librement autour de son axe 15, muni sur sa périphérie de poinçons en forme de tronc de pyramide à base rectangulaire 16 placés suivant des lignes 17 en forme d'hélice. A l'aplomb de ce rouleau emboutisseur est disposé un rouleau presseur 18 motorisé à la vitesse de la ligne. Ce rouleau presseur 18 est supporté en ses extrémités 19 et 20 par deux bras coudés 21, 22 montés pivotant au niveau des coudes 23, 24 autour d'axes 25, 26 portés par des paliers 27, 28 sur un bâti 29 et reliés aux tiges 30, 31 de deux vérins 32, 33 par leur extrémités 34, 35. Les deux vérins sont montés articulés autour d'axes 36, 37 portés par le bâti 29.Across the entire width of the continuous felt tape is arranged transversely a stamping roller 14 which can rotate freely around its axis 15, provided on its periphery with punches in the form of a pyramid trunk with rectangular base 16 placed along lines 17 in the form propeller. In line with this stamping roller is disposed a pressure roller 18 motorized at line speed. This pressure roller 18 is supported at its ends 19 and 20 by two bent arms 21, 22 mounted to pivot at the elbows 23, 24 around axes 25, 26 carried by bearings 27, 28 on a frame 29 and connected to the rods 30, 31 of two jacks 32, 33 by their ends 34, 35. The two jacks are mounted articulated around axes 36, 37 carried by the frame 29.

En position de travail, le rouleau presseur 18 est appliqué sur le feutre 10, forçant celui-ci à subir le poinçonnement par le rouleau emboutisseur 14.In the working position, the pressure roller 18 is applied to the felt 10, forcing the latter to undergo punching by the stamping roller 14.

En position de repos, le rouleau presseur 18 est relevé par l'intermédiaire des vérins 32, 33.In the rest position, the pressure roller 18 is raised by means of the jacks 32, 33.

En aval du rouleau emboutisseur, le dispositif comporte un rouleau 38 permettant l'application du revêtement 39 imbibé de bitume 41 sur la face inférieure 40 fraîchement poinçonnée du feutre 10.Downstream of the stamping roller, the device comprises a roller 38 allowing the application of the coating 39 soaked in bitumen 41 on the underside 40 freshly punched of the felt 10.

L'ancrage selon l'invention du revêtement qui servira de support par la suite sur le chantier pour le revêtement d'étanchéité, en étant réalisé sur une ligne de fabrication industrielle assure la fiabilité du système d'isolation, à contrario d'un ancrage du revêtement d'étanchéité directement dans le panneau réalisé sur le chantier comme il est décrit dans le document US-A-4 766 024.The anchoring according to the invention of the covering which will serve as a support thereafter on site for the waterproofing covering, by being produced on an industrial manufacturing line ensures the reliability of the insulation system, in contrast to an anchoring waterproofing coating directly in the panel produced on site as described in document US-A-4,766,024.

Claims (14)

  1. Insulating panel (1) for insulating horizontal or slightly inclined roofs, comprising a mineral wool felt (2,10) and a sealing support covering (6,39) adhered to one surface of the felt, characterised in that the surface of the felt onto which the covering is adhered has recesses (4) distributed over the entire surface thereof and forming anchorage points for the covering adhesive, which acts to adhere the sealing support covering (6,39) to the felt before the panel is placed on the site of works.
  2. Insulating panel according to Claim 1, characterised in that the recesses (4) are obtained by punching the surface of the felt.
  3. Insulating panel according to either of Claims 1 and 2, characterised in that the recesses have a geometric section, the surface of which is between 0.5 and 2 cm² and the depth of which is between 5 and 10mm.
  4. Insulating panel according to any one of Claims 1 to 3, characterised in that the recesses are disposed adjacent one another along lines which are different from the parallel lines on the short side of the panel.
  5. Panel according to any one of Claims 1 to 4, characterised in that the covering is adhered using bitumen.
  6. Insulating panel according to Claim 5, characterised in that the covering is impregnated with bitumen immediately prior to its application to the felt.
  7. Insulating panel according to any one of Claims 1 to 6, characterised in that the covering (6) is a glass sheet (7) impregnated with bitumen (8).
  8. Insulating panel according to Claim 7, characterised in that the covering is formed of a sheet of glass (7) and a thermofusible film (9).
  9. Process for the production of an insulating panel according to any one of Claims 1 to 8, characterised in that a continuous, rigid mineral wool felt is formed, in that recesses are created, in particular by punching, on the surface thereof which is intended to receive the sealing support covering, and downstream of the punching, the adhesive and the sealing support covering are applied to the surface with recesses, and the covered panel is cut.
  10. Process according to Claim 9, characterised in that the adhesive and the covering are applied simultaneously, the covering being impregnated with the adhesive immediately prior to the application thereof to the felt.
  11. Device for the production of an insulating panel according to either of Claims 1 to 2, characterised in that it comprises a production line for a mineral wool panel and, located between the oven and the station for adhering the covering (6,39), a system comprising an embossing roller (14) and, facing this, means (18) enabling pressure to be applied to the felt in a manner such that punching is possible, means for supplying the sealing support covering and for adhering it to the lower surface of the panel.
  12. Device according to Claim 11, characterised in that the means applying pressure to the felt is a pressure roller (18).
  13. Insulating panel according to any one of Claims 1 to 3, characterised in that the ratio of the surface of the recesses to the total surface of the panel is between 0.05 and 0.15.
  14. Insulating panel according to any one of Claims 1 to 3, characterised in that the ratio of the depth of a recess on the median section thereof is less than 0.3 and preferably less than or equal to 0.1
EP92401974A 1991-07-15 1992-07-09 Insulating panel for roofs and method and apparatus for the manufacture thereof Expired - Lifetime EP0524061B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9108862A FR2679279B1 (en) 1991-07-15 1991-07-15 INSULATING PANEL FOR ROOFING, METHOD AND DEVICE FOR ITS MANUFACTURE.
FR9108862 1991-07-15

Publications (2)

Publication Number Publication Date
EP0524061A1 EP0524061A1 (en) 1993-01-20
EP0524061B1 true EP0524061B1 (en) 1995-09-20

Family

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Application Number Title Priority Date Filing Date
EP92401974A Expired - Lifetime EP0524061B1 (en) 1991-07-15 1992-07-09 Insulating panel for roofs and method and apparatus for the manufacture thereof

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EP (1) EP0524061B1 (en)
KR (1) KR930002625A (en)
AT (1) ATE128204T1 (en)
AU (1) AU659162B2 (en)
CA (1) CA2073729C (en)
CZ (1) CZ213792A3 (en)
DE (1) DE69204931T2 (en)
DK (1) DK0524061T3 (en)
ES (1) ES2079155T3 (en)
FI (1) FI923229A (en)
FR (1) FR2679279B1 (en)
HR (1) HRP920211B1 (en)
HU (1) HU215362B (en)
NO (1) NO179018C (en)
PL (2) PL55695Y1 (en)
SI (1) SI9200133A (en)
SK (1) SK280008B6 (en)
TR (1) TR26411A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2848582B1 (en) 2002-12-17 2019-07-05 Saint-Gobain Isover PANEL FOR ENSURING THE THERMO-ACOUSTIC INSULATION OF WALLS
RU2683734C2 (en) 2015-01-15 2019-04-01 АЙВИС Инсулейтион Ватерпруфинг Индастриал Системс С.Р.Л. High-efficiency flame-processed heat-insulating panel for buildings roofs
RU2675388C1 (en) * 2018-03-13 2018-12-19 Дмитрий Владимирович Русецкий Thermal and sound insulation panel system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2535246A1 (en) * 1982-10-29 1984-05-04 Saint Gobain Isover ROOF SEALING INSULATION PANELS, METHOD AND DEVICES FOR THEIR MANUFACTURE
US4766024A (en) * 1986-05-07 1988-08-23 International Permalite, Inc. Roofing system

Also Published As

Publication number Publication date
NO922779L (en) 1993-01-18
EP0524061A1 (en) 1993-01-20
HU215362B (en) 1998-12-28
FI923229A0 (en) 1992-07-14
CA2073729C (en) 2003-09-30
SI9200133A (en) 1993-03-31
ES2079155T3 (en) 1996-01-01
HRP920211A2 (en) 1995-06-30
AU659162B2 (en) 1995-05-11
NO179018C (en) 1996-07-17
FR2679279B1 (en) 1995-02-24
TR26411A (en) 1995-03-15
PL55695Y1 (en) 1998-01-30
SK280008B6 (en) 1999-07-12
CZ213792A3 (en) 1993-02-17
ATE128204T1 (en) 1995-10-15
HRP920211B1 (en) 1998-04-30
NO922779D0 (en) 1992-07-14
CA2073729A1 (en) 1993-01-16
NO179018B (en) 1996-04-09
HU9202266D0 (en) 1992-10-28
SK213792A3 (en) 1994-06-08
FI923229A (en) 1993-01-16
PL295286A1 (en) 1993-05-04
FR2679279A1 (en) 1993-01-22
AU1854392A (en) 1993-01-21
KR930002625A (en) 1993-02-23
DK0524061T3 (en) 1996-01-22
DE69204931T2 (en) 1996-04-04
DE69204931D1 (en) 1995-10-26
HUT64263A (en) 1993-12-28

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