EP0304352B1 - Low elasticity modulus insulation panel and lining process using such a panel - Google Patents
Low elasticity modulus insulation panel and lining process using such a panel Download PDFInfo
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- EP0304352B1 EP0304352B1 EP19880401862 EP88401862A EP0304352B1 EP 0304352 B1 EP0304352 B1 EP 0304352B1 EP 19880401862 EP19880401862 EP 19880401862 EP 88401862 A EP88401862 A EP 88401862A EP 0304352 B1 EP0304352 B1 EP 0304352B1
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/10—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
- E04C2/20—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products of plastics
- E04C2/205—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products of plastics of foamed plastics, or of plastics and foamed plastics, optionally reinforced
Definitions
- the present invention relates to thermal insulating panels comprising a layer of cellular plastic material ensuring the thermal insulation of constructions.
- thermal insulation panels of this kind comprising a layer of expanded polystyrene or polyurethane foam, have advantageous thermal resistance characteristics, due to their low coefficient of thermal conductivity.
- they have a dynamic elastic modulus E of between 2 and 4 MPa depending on their density.
- FR-A-2508028 proposes to reduce the dynamic rigidity by so-called “elasticized” products, the foam of which has been subjected to a compression operation between two plates causing the rupture of certain cell walls.
- Such panels have a dynamic elastic modulus E of between 0.4 and 0.7 MPa.
- the double wall behaves acoustically substantially like a single wall.
- the isolation of the doubled wall increases as one moves away from the resonant frequency.
- the presence of insulating complexes with layers of expanded polystyrene can even significantly reduce the overall acoustic insulation of the support wall on which they are placed (drop of 5 to 6 dB (A)).
- a 14 cm thick concrete wall has an acoustic reduction index R of 52 dB (A).
- This same wall coated with expanded polystyrene sheets 60 mm thick and gypsum plasterboard 10 mm thick has a sound reduction index R of 50 dB (A).
- a 22 cm thick reinforced concrete floor has a sound reduction index R of 61 dB (A), while this same floor, coated on the underside with a sandwich panel made of a expanded polystyrene 80 mm thick and two fibragglo siding 20 mm thick, has an acoustic reduction index R of 55 to 58 dB (A) depending on the nature of the polystyrene and the degree of elasticity.
- the object of the invention is to avoid these drawbacks.
- FR-A-1 272 618 describes a system for damping the acoustic energy accompanying the flow of a fluid in a closed space, which uses blocks of multicellular glass limiting this space, having slots of rectilinear profile.
- the slots are contained in planes parallel to the direction of the thickness of the parallelepipedic blocks. If such slots were made in the plastic foam layer of an insulating panel, they would have no influence on the elasticity of this layer in the direction of the thickness and therefore on the acoustic insulation characteristics of the panel.
- the invention relates to an insulating panel comprising at least one layer of cellular plastic foam, characterized in that said layer has a multiplicity of elongated slots with chevron profile extending parallel to each other and in a longitudinal direction parallel to the faces of the layer, the successive slots opening alternately in the two faces of the layer.
- the foam layer is in particular a sheet of expanded polystyrene with a thickness of the order of 8 to 20 cm and a format varying from 1.20 by 3.00 m to 0.50 m by 1.00 m.
- the expanded polystyrene can be elasticized according to the traditional technique mentioned above, then cut and machined to the desired shape.
- the layer obtained is associated by bonding with one or two fibbraglo facings which may have a thickness of the order of 20 mm.
- this same layer of expanded polystyrene is associated with one or two smooth facings, with a thickness of 1 to 20 mm approximately, for example one or two gypsum plasterboards of 9.5 mm, 12, 5 mm or 15 mm thick approximately.
- the dynamic elastic modulus E of the sandwich or composite panel in the thickness direction is of the order of 0.2 to 0.3 MPa.
- the layer of elastic material working in shear dissipates much more energy. It follows that the vibration level of the wall under the action of a sound field is reduced by this process.
- the reduction in the vibration level is such that the resonant frequency is no longer marked. Since this resonance frequency is no longer marked, it follows that there is no longer any fall in isolation at this frequency and, as a result, the overall isolation of the wall is no longer reduced.
- the layer of expanded polystyrene, cut and machined remains as it is, without additional facings.
- Such a monolayer panel has substantially the same modulus of elasticity as the composite panels described above in the direction of the thickness.
- it has a dynamic elastic modulus in the direction parallel to its faces and perpendicular to the length of the slots of the order of 0.05 to 0.2 MPa and can be compressed elastically in this same direction in a proportion of at least two centimeters per meter, which may represent several millimeters to several centimeters depending on the format of the panel.
- the invention also relates to a method of insulating lining of a wall by a panel as defined above comprising at least one facing, in which one sticks the facing on the wall, the facing preventing the adhesive from reaching the slots of the foam layer.
- the panel illustrated in FIG. 3 is constituted by a sheet of expanded polystyrene 1 previously elasticized according to a traditional process, in which, in a regular pitch 4, cuts or slots 2 and 3 with a herringbone profile have been produced, alternately and respectively from the lower face and the upper face of the plate. These slots extend along the length of the plate and open at its two ends. They can be made using a heated wire with a width of about 1 mm.
- One of the faces of the expanded polystyrene plate has grooves 5, each of which joins two consecutive slots 3.
- the chevron-shaped cutouts and the grooves could also be made across the width of the plate.
- the panel according to the invention shown in Figure 1 is obtained ( Figure 4) by association of the expanded polystyrene plate 1 of Figure 3 with fibragglo facings 6 and 7 fixed on the expanded polystyrene plate by gluing.
- This plate differs from that of FIG. 3 by the absence of the grooves 5.
- the panels, according to FIG. 1, are generally used as insulated lost formwork for concrete floors as shown in section in FIG. 7.
- the panel according to the invention is distinguished therewith its insulating core of expanded polystyrene 1 and its facings 6 and 7 in fibragglo. It is associated with a solid concrete slab 12.
- the panels, according to Figure 2 are mainly used as insulating linings of concrete or masonry walls, as shown in section in Figure 8.
- This assembly also functions as a particular "mass-spring-mass" system and allows to improve the acoustic insulation R of the wall 14 alone, uncoated.
- the panels according to FIG. 6 are generally used to insulate sloping roofs, as illustrated in FIG. 9.
- the panel according to the invention in expanded polystyrene 1 is shown there in section, placed between two rafters 15 and 16 of the roof. To put it in place, it was compressed according to effort 10.
- the elasticity of the panel allows it to be held in place between the rafters 15 and 16.
- the panels according to the invention can in particular be used when it is sought to achieve thermal insulation of a wall and when it is desired simultaneously to improve its sound reduction index.
- Particularly interesting applications can be envisaged for making separating floors between underground car parks and housing, or separating housing walls.
- the panels with facing may or may not have grooves.
- the panels according to the invention can optionally include one or two facings, whether these are made of fibragglo or another type.
- the panels according to the invention are applicable to the insulating lining of the walls as illustrated in FIG. 8, it has been found in this case that the adhesive partially penetrates into the slots and, if necessary, into the grooves of the layer. foam, reducing their effectiveness. This results in an increase in the dynamic elastic modulus and a deterioration in the acoustic characteristics of the lined wall.
- This method uses a panel as described above and which comprises, at least on the face of the layer of foam facing the wall to be lined, a facing preventing the adhesive from reaching the slots.
- This facing is interposed between the foam layer 1 and the adhesive pads 13 of FIG. 8.
- the adhesive cannot therefore penetrate into the slots and, if necessary, into the grooves and the acoustic characteristics of the panel are preserved.
- Such an air-permeable facing may consist of a glass veil, preferably with a thickness of between 1 and 2 mm approximately.
- a light and economical facing can be provided by a second layer of plastic foam, for example of elasticized expanded polystyrene, the face of which faces the wall is free of cuts.
- a layer can have a thickness of between 5 and 10 mm approximately.
- the face of the layer of foam turned away from the wall can also be covered with a facing, for example made of cardboard plaster, such as that indicated at 8 in FIG. 8.
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Description
La présente invention concerne les panneaux isolants thermiques comprenant une couche de matière plastique alvéolaire permettant d'assurer l'isolation thermique des constructions.The present invention relates to thermal insulating panels comprising a layer of cellular plastic material ensuring the thermal insulation of constructions.
Les panneaux isolants thermiques connus de ce genre, comprenant une couche de polystyrène expansé ou de mousse de polyuréthanne, présentent des caractéristiques intéressantes de résistance thermique, du fait de leur faible coefficient de conductibilité thermique. Par contre, ils possèdent un module d'élasticité dynamique E compris entre 2 et 4 MPa suivant leur masse volumique.Known thermal insulation panels of this kind, comprising a layer of expanded polystyrene or polyurethane foam, have advantageous thermal resistance characteristics, due to their low coefficient of thermal conductivity. On the other hand, they have a dynamic elastic modulus E of between 2 and 4 MPa depending on their density.
FR-A-2508028 propose de réduire la rigidité dynamique par des produits dits "élastifiés", dont la mousse a été soumise à une opération de compression entre deux plateaux provoquant la rupture de certaines parois des cellules. De tels panneaux possèdent un module d'élasticité dynamique E compris entre 0,4 et 0,7 MPa.FR-A-2508028 proposes to reduce the dynamic rigidity by so-called "elasticized" products, the foam of which has been subjected to a compression operation between two plates causing the rupture of certain cell walls. Such panels have a dynamic elastic modulus E of between 0.4 and 0.7 MPa.
Ces valeurs relativement fortes du module d'élasticité dynamique ont une répercussion sur les caractéristiques d'isolement acoustique des parois dans la composition desquelles entrent de tels panneaux.These relatively high values of the dynamic elastic modulus have an impact on the acoustic insulation characteristics of the walls in the composition of which such panels are used.
En effet, on peut comparer l'ensemble d'une paroi doublée à l'aide d'un complexe polystyrène + parement à un système mécanique où le polystyrène joue le rôle d'un ressort reliant deux masses constituées par la paroi support et le parement. L'ensemble du système masse-ressort-masse a une fréquence propre de vibration (fréquence de résonance). A cette fréquence, l'isolement de la paroi baisse considérablement.Indeed, we can compare the whole of a wall lined with a polystyrene + facing complex to a mechanical system where the polystyrene acts as a spring connecting two masses formed by the support wall and the facing . The whole mass-spring-mass system has a natural frequency of vibration (resonance frequency). At this frequency, the insulation of the wall drops considerably.
Pour une fréquence de son incident inférieure à la fréquence de résonance du système, la paroi double se comporte au plan acoustique sensiblement comme une paroi simple.For a frequency of its incident lower than the resonance frequency of the system, the double wall behaves acoustically substantially like a single wall.
Pour une fréquence de son incident supérieure à la fréquence de résonance du système, l'isolement de la paroi doublée va en augmentant au fur et à mesure que l'on s'éloigne de la fréquence de résonance.For a frequency of its incident greater than the resonant frequency of the system, the isolation of the doubled wall increases as one moves away from the resonant frequency.
Dans certains cas, la présence de complexes isolants avec couches de polystyrène expansé peut même réduire sensiblement l'isolement acoustique global de la paroi support sur laquelle ils sont posés (chute de 5 à 6 dB (A)).In some cases, the presence of insulating complexes with layers of expanded polystyrene can even significantly reduce the overall acoustic insulation of the support wall on which they are placed (drop of 5 to 6 dB (A)).
A titre d'exemple, une paroi en béton de 14 cm d'épaisseur présente un indice d'affaiblissement acoustique R de 52 dB (A). Cette même paroi revêtue de plaques de polystyrène expansé de 60 mm d'épaisseur et de plaques de plâtre cartonné de 10 mm d'épaisseur a un indice d'affaiblissement acoustique R de 50 dB (A).For example, a 14 cm thick concrete wall has an acoustic reduction index R of 52 dB (A). This same wall coated with expanded polystyrene sheets 60 mm thick and
De même, un plancher en béton armé de 22 cm d'épaisseur a un indice d'affaiblissement acoustique R de 61 dB (A), alors que ce même plancher, revêtu en sous-face par un panneau sandwich constitué d'une âme en polystyrène expansé de 80 mm d'épaisseur et de deux parements de fibragglo de 20 mm d'épaisseur, a un indice d'affaiblissement acoustique R de 55 à 58 dB (A) suivant la nature du polystyrène et le degré d'élastification.Similarly, a 22 cm thick reinforced concrete floor has a sound reduction index R of 61 dB (A), while this same floor, coated on the underside with a sandwich panel made of a expanded polystyrene 80 mm thick and two fibragglo siding 20 mm thick, has an acoustic reduction index R of 55 to 58 dB (A) depending on the nature of the polystyrene and the degree of elasticity.
La présence d'un revêtement en polystyrène expansé peut donc dégrader très sensiblement l'isolement acoustique global d'une paroi.The presence of an expanded polystyrene coating can therefore very significantly degrading the overall acoustic insulation of a wall.
Le but de l'invention est d'éviter ces inconvénients.The object of the invention is to avoid these drawbacks.
FR-A-1 272 618 décrit un système pour amortir l'énergie acoustique accompagnant l'écoulement d'un fluide dans un espace fermé, qui utilise des blocs de verre multicellulaire limitant cet espace, présentant des fentes à profil rectiligne. Les fentes sont contenues dans des plans parallèles à la direction de l'épaisseur des blocs parallélépipédiques. Si de telles fentes étaient pratiquées dans la couche de mousse plastique d'un panneau isolant, elles seraient sans influence sur l'élasticité de cette couche dans la direction de l'épaisseur et par conséquent sur les caractéristiques d'isolation acoustique du panneau.FR-A-1 272 618 describes a system for damping the acoustic energy accompanying the flow of a fluid in a closed space, which uses blocks of multicellular glass limiting this space, having slots of rectilinear profile. The slots are contained in planes parallel to the direction of the thickness of the parallelepipedic blocks. If such slots were made in the plastic foam layer of an insulating panel, they would have no influence on the elasticity of this layer in the direction of the thickness and therefore on the acoustic insulation characteristics of the panel.
L'invention vise un panneau isolant comprenant au moins une couche de mousse plastique alvéolaire, caractérisé en ce que ladite couche présente une multiplicité de fentes allongées à profil en chevron s'étendant parallèlement les unes aux autres et selon une direction longitudinale parallèle aux faces de la couche, les fentes successives débouchant alternativement dans les deux faces de la couche.The invention relates to an insulating panel comprising at least one layer of cellular plastic foam, characterized in that said layer has a multiplicity of elongated slots with chevron profile extending parallel to each other and in a longitudinal direction parallel to the faces of the layer, the successive slots opening alternately in the two faces of the layer.
La couche de mousse est notamment une plaque de polystyrène expansé d'une épaisseur de l'ordre de 8 à 20 cm et d'un format variant de 1,20 par 3,00 m à 0,50 m par 1,00 m.The foam layer is in particular a sheet of expanded polystyrene with a thickness of the order of 8 to 20 cm and a format varying from 1.20 by 3.00 m to 0.50 m by 1.00 m.
Le polystyrène expansé peut être élastifié suivant la technique traditionnelle évoquée ci-dessus, puis découpé et usiné à la forme voulue.The expanded polystyrene can be elasticized according to the traditional technique mentioned above, then cut and machined to the desired shape.
Dans un premier mode de réalisation, la couche obtenue est associée par collage à un ou deux parements en fibbraglo qui peuvent avoir une épaisseur de l'ordre de 20 mm.In a first embodiment, the layer obtained is associated by bonding with one or two fibbraglo facings which may have a thickness of the order of 20 mm.
Selon un deuxième mode de réalisation, cette même couche de polystyrène expansé est associée à un ou deux parements lisses, d'une épaisseur de 1 à 20 mm environ, par exemple une ou deux plaques de plâtre cartonné de 9,5 mm, 12,5 mm ou 15 mm d'épaisseur environ.According to a second embodiment, this same layer of expanded polystyrene is associated with one or two smooth facings, with a thickness of 1 to 20 mm approximately, for example one or two gypsum plasterboards of 9.5 mm, 12, 5 mm or 15 mm thick approximately.
Pour ces deux modes de réalisation, le module d'élasticité dynamique E du panneau sandwich ou composite dans la direction de l'épaisseur est de l'ordre de 0,2 à 0,3 MPa.For these two embodiments, the dynamic elastic modulus E of the sandwich or composite panel in the thickness direction is of the order of 0.2 to 0.3 MPa.
Le doublage d'une paroi avec de tels complexes conduit à une paroi composite d'amortissement acoustique plus élevé que celui de la paroi initiale.The doubling of a wall with such complexes leads to a composite wall of higher acoustic damping than that of the initial wall.
La couche de matériau élastique travaillant en cisaillement dissipe beaucoup plus d'énergie. Il s'ensuit que le niveau de vibration de la paroi sous l'action d'un champ sonore est réduit par ce procédé.The layer of elastic material working in shear dissipates much more energy. It follows that the vibration level of the wall under the action of a sound field is reduced by this process.
La réduction du niveau de vibration est telle que la fréquence de résonance n'est plus marquée. Cette fréquence de résonance n'étant plus marquée, il s'ensuit qu'il n'y a plus de chute d'isolement à cette fréquence et, de ce fait, l'isolement global de la paroi n'est plus réduit.The reduction in the vibration level is such that the resonant frequency is no longer marked. Since this resonance frequency is no longer marked, it follows that there is no longer any fall in isolation at this frequency and, as a result, the overall isolation of the wall is no longer reduced.
Selon un troisième mode de réalisation, la couche de polystyrène expansé, découpée et usinée, reste en l'état, sans parements additionnels.According to a third embodiment, the layer of expanded polystyrene, cut and machined, remains as it is, without additional facings.
Un tel panneau monocouche présente sensiblement le même module d'élasticité que les panneaux composites décrits ci-dessus dans la direction de l'épaisseur. De plus, il présente un module d'élasticité dynamique dans la direction parallèle à ses faces et perpendiculaire à la longueur des fentes de l'ordre de 0,05 à 0,2 MPa et peut-être comprimé élastiquement dans cette même direction dans une proportion d'au moins deux centimètres par mètre, pouvant représenter plusieurs millimètres à plusieurs centimètres suivant le format du panneau.Such a monolayer panel has substantially the same modulus of elasticity as the composite panels described above in the direction of the thickness. In addition, it has a dynamic elastic modulus in the direction parallel to its faces and perpendicular to the length of the slots of the order of 0.05 to 0.2 MPa and can be compressed elastically in this same direction in a proportion of at least two centimeters per meter, which may represent several millimeters to several centimeters depending on the format of the panel.
L'invention vise également un procédé de doublage isolant d'une paroi par un panneau tel que défini ci-dessus comprenant au moins un parement, dans lequel on colle le parement sur la paroi, le parement empêchant la colle d'atteindre les fentes de la couche de mousse.The invention also relates to a method of insulating lining of a wall by a panel as defined above comprising at least one facing, in which one sticks the facing on the wall, the facing preventing the adhesive from reaching the slots of the foam layer.
D'autres caractéristiques et avantages de l'invention ressortiront de la description détaillée ci-après et des dessins annexés dans lesquels :
- les figures 1 à 3 sont des vues en perspective de trois panneaux isolants selon l'invention ;
- les figures 4 et 5 sont des vues éclatées représentant les éléments des panneaux des figures 1 et 2 respectivement ;
- la figure 6 est une vue analogue aux figures 1 à 3, relative à une variante ;
- les figures 7 à 9 sont des vues en coupe montrant des exemples d'utilisation des panneaux des figures 1, 2 et 6, respectivement.
- Figures 1 to 3 are perspective views of three insulating panels according to the invention;
- Figures 4 and 5 are exploded views showing the elements of the panels of Figures 1 and 2 respectively;
- Figure 6 is a view similar to Figures 1 to 3, relating to a variant;
- Figures 7 to 9 are sectional views showing examples of the use of the panels of Figures 1, 2 and 6, respectively.
Le panneau illustré à la figure 3 est constitué par une plaque de polystyrène expansé 1 préalablement élastifié suivant un procédé traditionnel, dans laquelle on a réalisé, suivant un pas régulier 4, des découpes ou des fentes 2 et 3 à profil en chevrons, alternativement et respectivement à partir de la face inférieure et de la face supérieure de la plaque. Ces fentes s'étendent selon la longueur de la plaque et débouchent à ses deux extrémités. Elles peuvent être réalisées à l'aide d'un fil chauffé d'une largeur de 1 mm environ.The panel illustrated in FIG. 3 is constituted by a sheet of expanded polystyrene 1 previously elasticized according to a traditional process, in which, in a regular pitch 4, cuts or
Une des faces de la plaque de polystyrène expansé comporte des rainures 5 dont chacune joint deux fentes 3 consécutives. Les découpes en forme de chevrons ainsi que les rainures pourraient également être réalisées dans le sens de la largeur de la plaque.One of the faces of the expanded polystyrene plate has grooves 5, each of which joins two consecutive slots 3. The chevron-shaped cutouts and the grooves could also be made across the width of the plate.
Le panneau suivant l'invention représenté à la figure 1 est obtenu (figure 4) par association de la plaque de polystyrène expansé 1 de la figure 3 avec des parements en fibragglo 6 et 7 fixés sur la plaque en polystyrène expansé par collage.The panel according to the invention shown in Figure 1 is obtained (Figure 4) by association of the expanded polystyrene plate 1 of Figure 3 with
Le panneau suivant l'invention représenté à la figure tenu (figure 5) par association d'une plaque de polystyrène expansé 1 avec un parement en plaque de plâtre cartonné 8 fixé par collage. Cette plaque diffère de celle de la figure 3 par l'absence des rainures 5.The panel according to the invention shown in the figure held (Figure 5) by association of a sheet of expanded polystyrene 1 with a facing of
C'est une telle plaque 1, en polystyrène expansé élastifié ou non élastifié,qui constitue le panneau de la figure 6. Les découpes 2 et 3, semblables à celles de la figure 3, peuvent être réalisées suivant un écartement 4 régulier ou non régulier.It is such a plate 1, made of expanded elasticized or non-elasticized polystyrene, which constitutes the panel of FIG. 6. The
Ces découpes permettent notamment d'augmenter l'élasticité transversale du panneau qui se comprime aisément suivant 9 lorsqu'il est soumis à une pression transversale 10. Dès que la pression transversale 10 est supprimée, le panneau isolant retrouve sa largeur initiale 11.These cuts make it possible in particular to increase the transverse elasticity of the panel which is easily compressed along 9 when it is subjected to a
Les panneaux, suivant la figure 1, sont généralement utilisés comme coffrage perdu isolant de planchers en béton tel que représenté en coupe en figure 7. On y distingue le panneau suivant l'invention avec son âme isolante en polystyrène expansé 1 et ses parements 6 et 7 en fibragglo. Il est associé à une dalle pleine en béton 12.The panels, according to FIG. 1, are generally used as insulated lost formwork for concrete floors as shown in section in FIG. 7. The panel according to the invention is distinguished therewith its insulating core of expanded polystyrene 1 and its
L'ensemble de ce montage fonctionne comme un système particulier "masse-ressort-masse" permettant d'obtenir une meilleure valeur d'isolement acoustique R que la seule dalle pleine en béton 12 non revêtue.The whole of this assembly functions as a particular “mass-spring-mass” system making it possible to obtain a better sound insulation value R than the only solid slab of uncoated concrete 12.
Les panneaux, suivant la figure 2, sont surtout utilisés comme doublages isolants de murs en béton ou en maçonnerie, tel que représenté en coupe figure 8. On peut y voir le panneau suivant l'invention avec son âme isolante en polystyrène expansé 1 et son parement en plaque de plâtre cartonnée 8. Il est mis en oeuvre par collage à l'aide de mortier adhésif 13 sur un mur en béton ou en maçonnerie 14. Ce montage fonctionne également comme un système particulier "masse-ressort-masse" et permet d'améliorer l'isolation acoustique R du mur 14 seul, non revêtu.The panels, according to Figure 2, are mainly used as insulating linings of concrete or masonry walls, as shown in section in Figure 8. We can see the panel according to the invention with its insulating core of expanded polystyrene 1 and its facing in
Les panneaux suivant figure 6 sont généralement utilisés pour isoler les toitures en pente, comme illustré en figure 9. Le panneau suivant l'invention en polystyrène expansé 1 y est représenté en coupe, placé entre deux chevrons 15 et 16 de la toiture. Pour le mettre en place, on l'a comprimé suivant l'effort 10.The panels according to FIG. 6 are generally used to insulate sloping roofs, as illustrated in FIG. 9. The panel according to the invention in expanded polystyrene 1 is shown there in section, placed between two rafters 15 and 16 of the roof. To put it in place, it was compressed according to
L'élasticité du panneau permet son maintien en place entre les chevrons 15 et 16.The elasticity of the panel allows it to be held in place between the rafters 15 and 16.
Les panneaux suivant l'invention peuvent notamment être utilisés lorsqu'on cherche à réaliser l'isolation thermique d'une paroi et que l'on veut simultanément améliorer son indice d'affaiblissement acoustique. Des applications particulièrement intéressantes peuvent être envisagées pour réaliser des planchers séparatifs entre parkings souterrains et logement, ou des murs séparatifs de logement.The panels according to the invention can in particular be used when it is sought to achieve thermal insulation of a wall and when it is desired simultaneously to improve its sound reduction index. Particularly interesting applications can be envisaged for making separating floors between underground car parks and housing, or separating housing walls.
Bien entendu, tout comme les panneaux sans parement, les panneaux avec parement(s) peuvent comporter ou non des rainures. De même, les panneaux selon l'invention peuvent comprendre au choix un ou deux parements, que ceux-ci soient en fibragglo ou d'un autre type.Of course, like the panels without facing, the panels with facing (s) may or may not have grooves. Likewise, the panels according to the invention can optionally include one or two facings, whether these are made of fibragglo or another type.
Bien que les panneaux selon l'invention soient applicables au doublage isolant des parois de la façon illustrée à la figure 8, on a constaté dans ce cas que la colle pénètre partiellement dans les fentes et, le cas échéant, dans les rainures de la couche de mousse, réduisant ainsi leur efficacité. Il en résulte une augmentation du module d'élasticité dynamique et une détérioration des caractéristiques acoustiques de la paroi doublée.Although the panels according to the invention are applicable to the insulating lining of the walls as illustrated in FIG. 8, it has been found in this case that the adhesive partially penetrates into the slots and, if necessary, into the grooves of the layer. foam, reducing their effectiveness. This results in an increase in the dynamic elastic modulus and a deterioration in the acoustic characteristics of the lined wall.
Le procédé selon l'invention remédie à cet inconvénient.The method according to the invention overcomes this drawback.
Ce procédé utilise un panneau tel que décrit ci-dessus et qui comprend, au moins sur la face de la couche de mousse tournée vers la paroi à doubler, un parement empêchant la colle d'atteindre les fentes.This method uses a panel as described above and which comprises, at least on the face of the layer of foam facing the wall to be lined, a facing preventing the adhesive from reaching the slots.
Ce parement par exemple est interposé entre la couche de mousse 1 et les plots de colle 13 de la figure 8. La colle ne peut donc pénétrer dans les fentes et, le cas échéant, dans les rainures et les caractéristiques acoustiques du panneau sont préservées.This facing, for example, is interposed between the foam layer 1 and the
Ces caractéristiques sont encore améliorées lorsque le parement est perméable à l'air.These characteristics are further improved when the facing is breathable.
Un tel parement perméable à l'air peut être constitué par un voile de verre, de préférence d'une épaisseur comprise entre 1 et 2 mm environ.Such an air-permeable facing may consist of a glass veil, preferably with a thickness of between 1 and 2 mm approximately.
En variante, un parement léger et économique peut être fourni par une seconde couche de mousse plastique, par exemple de polystyrène expansé élastifié, dont la face tournée vers la paroi est exempte de découpes. Une telle couche peut avoir une épaisseur comprise entre 5 et 10 mm environ.As a variant, a light and economical facing can be provided by a second layer of plastic foam, for example of elasticized expanded polystyrene, the face of which faces the wall is free of cuts. Such a layer can have a thickness of between 5 and 10 mm approximately.
Bien entendu, ces exemples n'ont aucun caractère limitatif. Il est possible d'utiliser pour réaliser le parement tout matériau propre à adhérer à la couche de mousse et à former une barrière à l'égard de la colle.Of course, these examples have no limiting character. Any material suitable for adhering to the foam layer and for forming a barrier against the adhesive can be used to make the facing.
Il va de soi également que la face de la couche de mousse tournée à l'opposé de la paroi peut également être recouverte d'un parement, par exemple en plâtre cartonné, tel que celui indiqué en 8 à la figure 8.It also goes without saying that the face of the layer of foam turned away from the wall can also be covered with a facing, for example made of cardboard plaster, such as that indicated at 8 in FIG. 8.
Claims (11)
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8710348A FR2618471B1 (en) | 1987-07-20 | 1987-07-20 | LOW ELASTICITY ACOUSTIC INSULATION PANEL |
| FR8710348 | 1987-07-20 | ||
| FR8809478A FR2634237B2 (en) | 1987-07-20 | 1988-07-12 | METHOD FOR LINING A WALL BY ADHESIVING INSULATING PANELS, AND A PANEL FOR CARRYING OUT SAID METHOD |
| FR8809478 | 1988-07-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0304352A1 EP0304352A1 (en) | 1989-02-22 |
| EP0304352B1 true EP0304352B1 (en) | 1992-06-03 |
Family
ID=26226127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19880401862 Expired - Lifetime EP0304352B1 (en) | 1987-07-20 | 1988-07-19 | Low elasticity modulus insulation panel and lining process using such a panel |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0304352B1 (en) |
| DE (1) | DE3871656T2 (en) |
| FR (1) | FR2634237B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013049895A1 (en) * | 2011-10-06 | 2013-04-11 | RAFP Pty Ltd | Acoustic panel structures |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE9414900U1 (en) * | 1994-09-13 | 1994-11-03 | Basf Ag | Soundproofing composite element |
| AU686052B1 (en) * | 1996-06-26 | 1998-01-29 | Stanley Eric Hunter Miller | Self supporting building insulation |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1272618A (en) * | 1960-08-23 | 1961-09-29 | Pittsburgh Corning Corp | Systems for damping the acoustic energy accompanying the flow of a fluid in a closed space |
| FR1430678A (en) * | 1964-04-27 | 1966-03-04 | Lord Mfg Co | Laminate damper assembly |
| FR2508028A1 (en) * | 1981-06-17 | 1982-12-24 | Rhinolith Sa | Composite panels of plaster and expanded polystyrene - subjected to compressive rupture of the cells to increase acoustic absorption |
| CH647290A5 (en) * | 1981-10-15 | 1985-01-15 | Haering & Kies Ag | Heat insulation for facades |
-
1988
- 1988-07-12 FR FR8809478A patent/FR2634237B2/en not_active Expired - Lifetime
- 1988-07-19 DE DE19883871656 patent/DE3871656T2/en not_active Expired - Fee Related
- 1988-07-19 EP EP19880401862 patent/EP0304352B1/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013049895A1 (en) * | 2011-10-06 | 2013-04-11 | RAFP Pty Ltd | Acoustic panel structures |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2634237A2 (en) | 1990-01-19 |
| EP0304352A1 (en) | 1989-02-22 |
| DE3871656T2 (en) | 1992-12-10 |
| FR2634237B2 (en) | 1991-07-26 |
| DE3871656D1 (en) | 1992-07-09 |
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