ES2280847T3 - PANEL INTENDED TO ENSURE THERMAL-ACOUSTIC WALL INSULATION. - Google Patents

Abstract

The mattress (2) has fibers coated with a binder. The binder has longitudinal borders for forming a relief zone. The zone is inclined with respect to a principal face of the mattress, which is covered by a facing (3). The zone is adapted to receive a part (5), which is folded back. The part arising from the facing is adhered to a surface. Independent claims are also included for the following: (a) a panel for a roof (b) a roof including mattress (c) an industrial building wall, residential wall, tertiary sector, or agricultural forming support including mattress (d) a method for manufacturing a mattress (e) a device for manufacturing a mattress.

Description

Panel intended to ensure insulation thermo-acoustic walls.

The present invention relates to a material primary panel designed to ensure thermoacoustic insulation, in particular under tightness and / or finish, of constituted walls by carrier elements or steel plate support elements with ribs, wood or concrete.

These panels are constituted mainly by a primary material formed from a high density mineral, rock or glass wool mattress (volumetric mass comprised between 50 and 400 kg / m 3), according to regions of thickness between 20 and 300 mm, and of a face arranged on a main face of said material primary. These panels are generally positioned and sympathetic by bonding, by mechanical attachment to elements of support or horizontal or vertical walls, inclined, even curves, which are more particularly intended for buildings of industrial or residential character, in an application concerning New or restoration work.

Substantially parallelepipedically, these panels have two main faces and four edges longitudinal respectively parallel two to two, generally perpendicular to these main faces; these panels are they are destined to juxtapose to similar panels according to their edges longitudinal so that an insulation system is composed of an industrial, residential, tertiary or agricultural building.

A first family of panels is known constituted from a primary material formed from a mattress of mineral wool and a wall arranged on one of the main faces of said primary material. The main disadvantage of this type of panel lies in the fact that it offers a reduced tear resistance, in particular the Paramento, after a gust of wind, may have a tendency to unsolidate from the primary material.

To solve this problem of resistance to tearing has come to conceive a second family of panels that is distinguished from the previous one by the fact that the facing is folded or flanged on the other side main panel (this other main face is the one located opposite to the one covered by the wall); in this way the folds do not offer wind prey and resistance to tearing is thereby clearly improved.

This type of panels is described for example in European patent EP 0 109 879 or in French patent FR 2 679 279.

Now, in order to anticipate the requirements of the regulatory provisions, both at the same time level of its mechanical resistance as of its properties of acoustic and / or thermal insulation, as well as its optimum performance against fire, even higher performance materials are desirable optimum.

Indeed, between the strictest and highest standards The regulatory provisions on the matter are imperative safety against fire risk, whether it is an outgoing fire from inside or outside. It is said that a fire is "a fire coming from inside "when the flames come or they propagate inside an enclosure, and on the contrary, it is said that a fire is "a fire coming from outside" when at Otherwise the flames are located outside the enclosure.

Now, for panels covered by a bituminous face, respect for these normative conditions, very particularly in terms of fire resistance, it is problematic; the bituminous face, especially when found bent or flanged on the face of the panel that is directed inwards, it is likely to constitute a vector for the propagation of the flame.

The objective of the present invention is to propose a primary material that allows to manufacture an insulating panel that can play the role of fire barrier, this panel being covered with a wall, said wall being also liable to resist a tearing effort (in particularly the wind).

In the present invention, it is defined by I cover any lining that comes in the form of a thin sheet whose thickness is less than 5 mm, and in particular close to 1 mm, and that has a capacity for folding, when pumping, to a deformation that allows it to adhere to one of the panel faces.

The panel essentially parallelepipedic according to the invention comprises a primary material of according to claim 1.

The embossed area, which in the present invention it can be constituted by a concave or protuberant zone, it is what important enough in section and in depth to allow to fold into the relief area so that there is no excess thickness of matter on the longitudinal edge of said panel.

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For a better definition of the invention, It will also define the following terms:

Exterior:

It is used when the panel is integral with a element that forms the support of an enclosure, one of its faces main (the one that is covered with wall) is then directed towards the outside of the enclosure.

Inside:

It is used when the panel is integral with a element that forms the support of an enclosure, one of its faces main (the one in contact with the support) is then directed towards the interior of the enclosure.

In preferred embodiments of the invention, it may also have resorted to one and / or another of the following provisions:

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          the relief area is made over a fraction of the thickness of the mattress, at the height of a main face of said mattress, delimiting this area in relief two contiguous areas,

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          The mattress is provided with at least two raised areas, being each of those areas positioned on a longitudinal edge of said mattress,

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          the longitudinal edge that comprises the relief area is inclined relative to the main face of the mattress before being covered with a wall, according to an angle greater than 90º,

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          the relief area is made in the form of an emptying of matter,

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          the relief area is made in the form of a bump of matter.

According to another aspect of the invention, this is a panel consisting essentially of a material primary as described above and of a wall,

Conveniently the panel facing it comprises at least one fold, said fold being received at minus a relief area made at the level of the longitudinal edge of said panel, said fold being intended to cooperate at the level of said area in relief with the aid of a means of adhesion, in particular bitumen.

According to another preferred mode of embodiment, the panel comprises two raised areas, receiving each of these areas embossed a fold of said wall.

Also according to a feature convenient, the wall is basically constituted by a asphalt coated glass veil, said face being eventually reinforced by a glass mesh.

According to another preferred variant, the Paramento is constituted essentially by a kraft paper.

Also according to other features convenient, the kraft paper comprises at least one treated face not beaded and presents on the one hand a smooth appearance and on the other hand better distribution of mechanical cohesion.

Also according to a preferred variant, The wall is a reagent support for bonding.

This reagent support is a chemical agent (for example a particular hitch primary) that allows improve adhesion with a coating that will be referred subsequently on the wall.

The present invention is also about a roof consisting of steel plate bearing elements with ribs, of wood or concrete, on which a plurality of panels such as those described above.

Treat equally and more generally any industrial, residential, tertiary or building wall agricultural forming support on which a plurality of panels in accordance with the preceding provisions.

Other features and advantages of the invention will appear throughout the following description of several of your embodiments, given as a non-limiting example. In the figures:

- Figure 1 is a view illustrating an embodiment of a panel belonging to a first known family of panels;

- Figure 2 is a view that illustrates an embodiment of a panel belonging to a second known family of panels;

- Figure 3 is a view in perspective of a panel according to the invention;

- Figure 4 is a view in perspective illustrating the juxtaposition of a plurality of panels according to figure 3, in order to make a roofed

- Figures 5 and 6 illustrate various embodiments of a panel according to the invention. The Figure 7 illustrates an embodiment that is not part of the scope of protection of the claimed invention.

The known panel depicted in Figure 1 is substantially parallelepipedically, it is constituted essentially for a mattress 2 of mineral wool or rock wool, agglomerated by a binder, and one of its main faces is covered by a wall 3 that has been made solidary with this face by all known means, in particular by sticking with the help of an impregnation by bitumen. The wall of this panel has a tear resistance, in particular due in the wind, very limited.

The known panel represented in Figure 2 is distinguished from that of Figure 1 by the fact that lateral bends 5 resulting from the wall are integral with the other main face of the panel (this other main face being the opposite of that on which the wall 3 is fixed, this other main face also corresponding to the face that is intended to be in contact with a support element). This panel, at the level of its face, is improved its tear resistance, on the contrary it still has a lower resistance to the risk of
fire.

Panel 1 depicted in Figure 3 is formed by a primary material consisting essentially of a rock wool mattress 2 whose binder rate is of the order of 3 at 4% by weight, this percentage being one of the characteristics Structural of the primary material. It has an order density of 140 kg / m 3 and a thickness of 80 mm. Of course the dimensional and structural characteristics of mattress 2 are given purely indicative, and these may vary in Role of the applications investigated. Thus, the invention is can be applied to panels whose density series is included between 50 to 400 kg / m 3 and in particular 70 to 200 kg / m 3, and preferably close to 140 kg / m 3, for thicknesses that can vary from 30 to 300 mm.

One of the main faces of the material Primary mattress 1 is intended to receive by glue or any other means that ensures the adhesion between two materials, a wall 3. That wall 3 may be constituted by various elements such as for example a glass veil, bituminous or not, or a sheet of kraft paper or any other type of materials; those elements are eventually associated with a glass mesh to reinforce the wall.

Glass veil is understood as any support Made from a non-woven glass.

The application of the wall is done directly after impregnation of the veil by bitumen or other bonding means, so that the medium that must ensure adhesion can penetrate one of the main faces of mattress 2, by at least on a weak thickness of the latter.

In order to improve the fixation of the wall 3 on the upper face of mattress 2, can be performed on the surface of the latter a plurality of cavities obtained by perforation, such as those described for example in patent FR 2 679 279.

As a variant, the wall 3 is not a veil of glass, eventually reinforced and covered by a material bituminous, but a wall of kraft paper.

In that case, that parameter 3 constituted by Kraft paper can act as a finishing wall.

According to an example of a paper wall Kraft that can be used as a finishing wall, can be try a kraft paper of which one of its faces is treated to antimojadura (that resists the humidification by a fluid of cooling (water)). In addition, this face thus treated presents by a part a smooth surface, which will minimize the amounts of adhesive used later, and on the other hand a better distribution of mechanical cohesion. The kraft paper manufactured by the Canadian company Cascades Sainte Marie (ARJISO 200 ™) is An example of realization that has these properties.

The following table gives some features of that kraft paper

100

Those characteristics are determined by usual tests in the paper industry.

This insulating panel 1 can be used to 4, horizontal or vertical roof insulation systems inclined, even curved, juxtaposing at the level of its edges longitudinal a plurality of panels, the panels being solidarity and mechanically fixed to the frame roof metallic, horizontal, formed by metal sections through screws or washers. Alternatively, the panels could stick to the supports.

Of course, wall 3 is oriented towards the exterior of the enclosure thus covered, as opposed to the face of the panel that is devoid of facing that is directed towards the inside the enclosure and in contact with the frame of the roof 4 or any other wall attached to the building support industrial, residential, tertiary or agricultural.

In figure 3 it is noted that the wall 3 does not is flanged on the main face of the panel that is intended for go inside the enclosure, and more specifically than at minus a fold 5 of the wall 3 is not fixed more than on a fraction of the thickness of one of the longitudinal edges of the panel (it is said then that the panel is semi-beaded). This panel 1 is semi-beaded over two of its four edges, plus particularly at the level of two longitudinal edges substantially parallel

It is understood by "semi-beaded" the fact that the face main panel (inside face) to be addressed towards the support is not covered in whole or in part by a resulting fold of the wall, in this configuration the resulting fold (ces) 5 of the face of the wall 3 directed towards the outside of the enclosure is (n) semi-flanged (s) so that the fibers of the panel are directly in contact with the roof frame that covers the enclosure.

In Figure 4 and following, they have been represented different embodiments of a panel according to the invention.

Thus, on figure 4 in particular, it has represented a roof constituted by the juxtaposition of a plurality of panels 1. Each of the folds 5 of the wall 3 is set (by pasting or by another equivalent procedure that allows to ensure adhesion between two surfaces) within a raised area 6 made in the thickness of the panel.

This area in relief 6 (in hollow or outgoing) delimits two contiguous zones 7, 8 of which one of them forms a protrusion of matter 9 (visible in figures 6 and 7). In this example of figure 4 the bulge of matter 9 is positioned at the height of the main face of panel 1 that is intended to go into the enclosure, the part being contiguous 8 in this example (the embossed part is hollowed) to the height of the other main face of panel 1, which is intended for Go outside the enclosure.

Thus, juxtaposing at least two panels 1 of according to the embodiment described above, the respective relief portions 6 cooperate so that they conform to level of the main faces panels intended to be in contact with the support, forming a uniform layer barrier, This barrier can be acoustic and / or thermal and / or against the fire.

It can be seen that proceeding to a surface heating of the bituminous wall, very particularly at the level of the zones semi-beaded, those areas of bitumen are going to fuse locally and after cooling perform a barrier of tightness

In Figure 5 a panel 1 is shown semi-flanged on one of the four sides of the panel.

In Figure 6, at least one of the edges that comprise the relief area 6 is inclined relative to a of the main faces of panel 1. In the case of this example of embodiment the semi-flanged edge is inclined an angle α greater than 90 ° with respect to the face of the panel that It is intended to go outside the enclosure.

Figure 7 illustrates another embodiment of the panel. On one of the edges of the panel, the relief area 6 intended to cooperate with the fold 5 resulting from the wall 3 is projection while the relief area 6 located at the level of the opposite edge is hollow.

Juxtaposing at least two panels 1 according with this embodiment according to its longitudinal edges respective associating on one hand a projecting zone 6 of a first panel 1 with a hollow area 6 'from a second panel 1', an insulating system is made whose face directed inwards The enclosure forms an acoustic and / or thermal barrier. The folds 5.5 'of the 3.3' wall are "protected" either by an outgoing zone either by a hollow area.

Whatever the embodiment, the presence of folds at the level of the longitudinal edges of the panels increases the resistance to tearing (this tearing can follow a burst of wind) and resistance to the fire risk of the panels according to the invention in relation to those of the art previous.

The invention also relates to a procedure and to a device for continuous manufacturing of the panels described above.

According to the procedure, it is manufactured in Continuous a mattress of rigid insulation of mineral fibers, of high density, by classic procedures for rock wool or glass wool, are created if cavities are necessary for perforation of the surface destined to receive the wall, with in order to form regularly distributed anchor points on the surface for the adhesive (or other) used for fixing of the wall on one of the panel faces.

The mineral fiber mattresses previously binder coated are routed by conveyor belts within a heat treatment room (stove) in which the binder polymerizes and consolidates the mattress by giving it, thanks to the pressing rollers, their dimensional characteristics and thus forming a primary material.

Further down this site we proceed to the realization of the areas in relief (in hollow, or outgoing) on at least one of the longitudinal edges of the mattress.

The separation of matter over a fraction of the mattress thickness is made by a cutting body (saw, strawberry) or by any other equivalent means, such as with the help of a fluid under pressure (water jet by example).

The cutting body is integrated in the Panel manufacturing procedure. It is located at continuation of the stove and before the cutting unit final. As a variant, however, it is possible to provide this operation within a recovery operation, either by example after cutting in the direction of the mattress travel, and / or for example after cutting in the transverse direction (with regarding the direction of travel) of the mattress.

The adhesive or the like is then applied and the face on the face eventually provided with the cavities.

In a preferred form, the adhesive is worn on the mattress simultaneously to the wall. It is the case in particularly when the wall uses bitumen as an adhesive and impregnate it before applying it on the mattress.

It can be noted that when the wall is a Kraft paper of which one of the faces is treated for anti-cracking,  improves the cooling necessary for solidification of bitumen located at the interface between the primary material and the facing.

In effect, that cooling is done usually wet, the cooling fluid that is in contact with the antimojadura face of the wall allows to cool the Bitumen without deteriorating the latter.

Now, with traditional walls (without hydrophobic treatment) due to wet cooling, there are a risk of deterioration of the latter (swelling, defect of surface ...).

The wall that is applied continuously presents a width corresponding to the width of the mattress increased by at least one fold, whose dimension corresponds to the depth of the previously performed cutting feature, which allows a coating over at least a fraction of the thickness of the mattress.

The wall may comprise a sheet of plastic material known as separation, as in the case of panel described in the document EP-A-0 109 879 already cited.

The wall itself can ensure this function of separation if the latter is made of kraft paper or other material.

The invention also relates to a device for the use of the procedure and the manufacture of the panel insulating.

The device comprises the means of known manufacturing for the realization of the insulating panel, is that is, a fiber forming device with incorporation of binder at the time of fiber formation, a conveyor that receives the fibers, means that drive the mattress to the desired thickness and an oven for polymerization of the binder, means for the supply of paramento and its adhesion on the underside of the panel, cutting means. These means of cutting consist of first cutting means to fix the dimensions in the transverse direction (in relation to the direction of mattress travel), second means to set dimensions in the longitudinal direction (parallel to the direction of travel of the mattress), and finally third means for the realization of zones embossed in a fraction of the thickness of the mattress.

It also includes a system arranged between the cutting station of the relief areas within a fraction of the thickness of the mattress and the glue station of the wall, which it comprises a pressing organ that allows a pressure to be applied constant over at least one fold of the wall that you want to make adhere at the level of the previously separated relief area.

Claims (15)

1. Primary material constituted essentially by a mattress (2) of mineral or rock wool, substantially parallelepipedic with two main surfaces and longitudinal edges, consisting of a plurality of fibers coated by a binder, said primary material having at the level of at least one of its longitudinal edges an area in relief (6), said relief area (6) is made on a mattress thickness fraction, at the height of a main face of said mattress (2), delimiting this area in relive (6) two zones contiguous (7, 8). and this relief area (6) is adapted to receive a part in fold (5) of a wall (3), covering this bending part (5) of the wall (3) a part of that edge longitudinal of said area in relief (6) and this being adhered wall (3) to a first main surface of the mattress and not this wall (3) being flanged on the second surface main mattress (2), and this wall (3) being a sheet thin whose thickness is less than 5 mm, and said relief area (6)  it is a hollow area that is important enough in section and in depth to allow the fold (5) to be embedded in within the relief area (6) so that there is no material thickness over the longitudinal edge of the panel that it comprises the mattress (2) and the wall (3), and so that the fold (5) of the wall (3) and the part of the longitudinal edge of the mattress (2), which is not covered by the fold (5), forms a outer surface of the panel that is continuous and flat. 2. Primary material according to claim 1, characterized in that the longitudinal edge comprising the relief area (6) is inclined relative to the main face of the mattress (2) to be covered by wall (3) according to a angle α greater than 90 °. 3. Panel (1) consisting essentially of a primary material according to claim 1 or 2 and by a wall (3) that is suitable for folding. 4. Panel according to claim 3, characterized in that it comprises two raised areas (6, 6 '), each of these areas receiving a relief (5, 5') of said wall (3), these folds being (5, 5 ') intended to cooperate at the level of the relief areas (6, 6') with the aid of a means of adhesion, in particular bitumen. 5. Panel according to one of claims 3 to 4, characterized in that the wall (3) consists essentially of a glass veil coated with bitumen, said wall being eventually reinforced, in particular by a glass mesh. 6. Panel according to one of claims 3 to 4, characterized in that the wall (3) consists essentially of a kraft paper comprising an adhesive means to said primary material. 7. Panel according to one of claims 3 to 6, characterized in that the kraft paper comprises at least one face treated for anti-cracking. 8. Panel according to one of claims 3 to 7, characterized in that the wall (3) is a reagent support for bonding. 9. Roof consisting of elements carriers of steel plates with ribs, of wood or concrete, on which a plurality of panels are fixed according to a any of claims 3 to 8. 10. Industrial building wall, residential, tertiary, or agricultural that forms support on which  fix a plurality of panels according to any one of the claims 3 to 8. 11. Process for the manufacture of a primary material according to one of claims 1 to 2, characterized in that a continuous mattress (2) of mineral wool covered by a binder is formed, in which at least one of the materials is created. Longitudinal edges a raised area (6). 12. Method according to claim 11, characterized in that a wall (3) is applied on the face of the mattress located at the height of said relief area (6), in which at least one bend (5) is pressed. of said wall (3) within said relief area (6). 13. Method according to one of claims 11 or 12, characterized in that the relief area (6) is obtained by a matter separation operation performed by a cutting member. 14. Device for manufacturing a panel according to one of claims 3 to 8, characterized in that it comprises a manufacturing line for the realization of the primary insulating material, namely a fiber forming device with incorporation of a binder into the moment of the formation of fibers, a fiber receiving conveyor, means that lead to the mattress to the desired thickness and a stove for polymerization of the binder, means for the supply of a wall (3) and are glued on the underside of the material primary, the cutting means consisting of first cutting means for fixing the dimensions in the transverse direction relative to the direction of the mattress travel, second means for fixing the dimensions in the longitudinal direction parallel to the direction of the mattress travel , and finally third means for the realization of the relief areas in a fraction of the thickness of the c mattress 15. Device according to claim 14, characterized in that it further comprises a system arranged between the cutting station of the raised areas within a fraction of the thickness of the mattress and the fixing station of the wall, which comprises a pressing element that allows apply a constant pressure on at least one fold of the wall that is to be adhered at the level of the previously separated relief area.