FR3082541A1 - PHONIC RENOVATION PANEL APPLIED AGAINST A CONSTRUCTION ELEMENT OF THE WALL OR CEILING TYPE - Google Patents

Abstract

The present invention relates to a sound renovation panel (1) intended to be applied against a building element (2) of the wall or ceiling type, the panel (1) comprising a flat frame (3) having cavities (4) passing through it. part by part the weft (3) surrounded by a weft body. The frame body has hollow partitioned chambers (3a) filled with air while being airtight towards the outside, at least the major part of the cavities (4) being filled with a first sound coating, a layer (5) of the first coating also being applied to one face (3c) of the frame (3) in order to completely cover the frame body at least on this face (3c).

Description

Description

Title of the invention: Soundproofing panel applied against a building element of the wall or ceiling type The present invention relates to a soundproofing panel intended to be applied against a building element of the wall or ceiling type.

Such a sound renovation panel has a flat frame having through cavities right through the frame surrounded by a frame body.

Such a sound renovation panel is intended to be an interior product by being applied against an interior building element which it covers on its visible face, this either for reasons of renovation of the building element or reasons of sound insulation. Such a panel makes it possible to acoustically isolate an interior room from a construction from external nuisances and to improve the reverberation of interior sounds.

Document FR-A-2 535 368 describes a method of manufacturing a protective coating for an exterior insulation panel of a building. The insulation panel includes a cellular insulation on which a layer of hydraulic coating is deposited. The coating layer is dried and degassed. Then, the porosities of this layer are impregnated with an organic monomer or oligomer, added with a catalyst for its polymerization, and the monomer or oligomer is polymerized in situ.

This document relates only to an exterior insulation panel of a building and not to an interior renovation panel when these two types of panel are not faced with the same stresses. The exterior insulation panel must have weather resistance characteristics, in particular the humidity which the interior renovation panel does not necessarily have to present. Therefore, the applied coating and the design of the honeycomb differ markedly in the two cases.

In addition, for an interior insulation renovation panel, sound insulation is essential and must be guaranteed, as well as the aesthetic appearance of the panel.

Document FR-A-2 700 565 relates to a panel intended for the building industry, consisting of an assembly of plates of a building material, this for the production of partitions or renovation of old premises .

The panel comprises two support elements extending parallel over the entire length of the panel, said plates of a building material being extruded polystyrene plates joined together on said support elements and extending in one holding over the entire height of the panel.

[0009] Such an interior renovation panel does not have high sound insulation characteristics. In addition, its application to a building element is not easy and requires fastening elements such as angles surrounding at least one side of the panels.

The problem underlying the present invention is to design an interior renovation panel which can have good qualities of sound insulation while being reduced in thickness and being easy to install against the building element of the wall or ceiling type.

For this purpose the present invention relates to a sound renovation panel intended to be applied against a building element of the wall or ceiling type, the panel comprising a flat frame having through cavities right through the frame surrounded by a body weft, characterized in that the weft body has hollow partitioned chambers filled with air and being airtight towards the outside, at least the major part of the cavities being filled with a first sound coating, a layer of the first coating being also applied to one face of the frame in order to completely cover the frame body at least on this face.

The technical effect is, to guarantee the sound insulation of an interior renovation panel, to combine in a frame open and through cavities from one side to the other, that is to say opening onto two opposite faces of the panel, in particular extending in the thickness of the panel, with partitioned hollow chambers filled with air ensuring good insulation. The cavities at least partially filled with the first coating ensure the solidity of the panel while improving the sound insulation of the panel.

It is possible to fill only some of the cavities, leaving others empty and closed with at least the first coating layer. Indeed, as these same empty cavities are covered with a layer of first coating, these cavities can provide sound insulation like hollow partitioned chambers.

When a cavity is filled with the first coating, this filling can be partial or complete. Complete filling is preferable to have a junction between the first coating in the cavities and the first coating layer.

Likewise, it is necessary to ensure that most of the cavities are filled so that the panel can have sufficient rigidity and mechanical strength. For example, secured to a wall, such a panel may be pierced for hanging various objects and the drilling should be done on an area full of material where the need to have a major part of the cavities through filled with first coating.

In addition, the through or through cavities contribute to the bonding of the panel on the building element. One side of the renovation panel serves as a coating face with the introduction of the first coating into the cavities while the face opposite the coating face is intended to be applied against the building element. As the cavities are through, a quantity of first coating can emerge from the renovation panel on its face applied to the construction element and exert, advantageously locally, a bonding action between the renovation panel and the construction element.

It follows that the through cavities have, in addition to providing sound insulation and lightening the weight of the frame, another advantage of allowing insertion of a first coating between the applied face of the renovation panel and the 'building element, which avoids costly and time-consuming joining work between the renovation panel and the building element.

The qualities of the renovation panel also allow it to easily renovate and smooth a building element supporting it, such as a ceiling or a wall without having to coat and sand several times on a support surface.

Such a renovation panel can be placed directly on an interior plaster or a droplet.

Advantageously, a layer of at least one second sound coating is applied to the layer of the first coating, the layer of said at least one second coating being from one to two millimeters.

The second coating can have the same composition as the first coating or be different. This makes it possible to mask the through cavities even more on the coating face of the renovation panel and, if necessary, to repair the coating defects visible on the layer of the first coating.

Advantageously, the first coating and said at least one second coating are self-leveling. The self-leveling property of phonic coatings makes it possible to carry out, if necessary, a light sanding before applying a phonic paint in order to have a uniform and flat support.

Advantageously, the first coating and said at least one second coating are the same.

Advantageously, the layers of the first coating and of said at least one second coating are covered with a layer of acrylic phonic paint. This illustrates a preferred but non-limiting embodiment. Applying an additional layer of acrylic soundproofing paint will further strengthen the soundproofing characteristics of the renovation panel while improving its aesthetic appearance.

Advantageously, at least the first coating initially comprises a mixture of coating material and air beads, the air beads disintegrating during drying of the first coating so that the first coating takes the form of a phonically insulating foam in the renovation panel. This is a preferred embodiment of a soundproofing coating, the first soundproofing coating then having optimal soundproofing characteristics. There may be an increase in shape in the quantity of first coating contained in each through cavity, which increases the joining of the quantities of first coating contained in the through cavities with the frame body, thereby strengthening the strength of the panel.

Advantageously, the frame forms a honeycomb by presenting hexagonal cavities. A honeycomb is known to have strong mechanical strength. Indeed, the symmetrical configuration of a honeycomb is advantageous for the holding of the panel.

Advantageously, the frame is made of glass fibers, paper or cardboard. What is important is that the frame is rigid enough to withstand the application of the first sound coating.

Advantageously, the frame has a thickness of three to four millimeters, the first coating layer being from one to two millimeters.

The present invention allows to obtain a renovation panel of a thinner thickness than the renovation panels of the state of the art while having better sound insulation. There is therefore a lower cost of material, a lower weight of the panel, which will, for example, facilitate possible adhesion by gluing against a ceiling as a building element.

The invention relates to a set of a building element of the wall or ceiling type supporting at least one sound renovation panel applied against the building element, characterized in that the sound renovation panel is as previously described , the sound renovation panel having one face of the frame applied against the building element and a coating face opposite to the applied face, the coating face being coated with the layer of first sound coating, an amount of the first soundproofing filling most of the cavities arriving at the applied face of the frame against the building element, the first soundproofing being selected to perform a bonding action between the applied face of the frame and the building element at the level of the outlet of the cavities on the applied face.

The advantages of the assembly according to the invention are an easy renovation of building elements such as walls and ceilings, great external and internal insulation, freedom of breathing of the building element forming the support of the panel. renovation, a thin thickness of approximately ten millimeters maximum of the panel, a high-end quality of finish, a smoothing of the panel fast and simple, a correction without treatment of the coating layer (s) and surface cracks on the panel.

As previously mentioned, the first coating fulfills two functions. A first function is the filling of the through cavities, which makes it possible to stiffen the panel while completing the sound insulation provided by the hollow partitioned chambers filled with air. The second function of the first coating, arriving at the level of the applied face of the renovation panel against the construction element by each of the cavities, is to ensure the joining of the renovation panel with the construction element. This had not been envisaged by the state of the art which provided for additional joining means between the various panels and the construction element.

The present invention finally relates to a method of applying at least one renovation panel to a building element of the wall or ceiling type in order to produce such an assembly, characterized by the following steps:

- Application of the frame against the building element by its applied face and maintenance of a pressure of the frame against the building element, [0035] - coating of the frame with a first phonic coating via the face of coating the weft, the major part of the through cavities then being filled with the first coating, a quantity of the first coating arriving at the level of the applied face opposite to the coating face and effecting the bonding of the applied face against the construction element at the outlet of the cavities on the applied face, [0036] - coating of the coating face of the weft with a layer of first soundproofing sufficient to completely cover the coating face and waiting for the drying of the first coating.

The connection of the frame with the building element is done at the outlet in the applied face of the frame of each of the cavities filled with the first coating. There is no need to insert a layer of glue between the applied side of the frame and the side facing the building element.

The frame and in particular its coating face which will be the most visible once the panel glued to the construction element is embedded under at least one layer of phonic coating. The drying time after bonding and first coat is approximately three hours.

Advantageously, there is carried out a coating of at least one layer of a second sound coating, the layer of at least one second sound coating being applied to the layer of the first coating and drying of said at least is expected. a second coating, the layer of said at least one second coating being sanded or not and a layer of sound paint being applied or not on the layer of said at least one second coating.

It is thus possible to leave on the renovation panels small roughness which will give a wall look of formerly vintage.

Advantageously, the frame is glued having been cut into rectan gular portions, a rectangular portion being adjacent to a neighboring rectangular portion with the interposition of a coating layer between the two rectangular portions for bonding the two rectangular portions l to one another.

Other characteristics, aims and advantages of the present invention will appear on reading the detailed description which follows and with regard to the appended drawings given by way of nonlimiting examples and in which:

[Fig.l] is a schematic representation of a longitudinal sectional view of an embodiment of an assembly of a building element and a renovation panel according to the present invention, [0044] [fig.2] is a schematic representation of a top view of an embodiment of a frame forming part of a renovation panel according to the present invention, [fig.3] is a schematic representation an enlarged view of a frame portion shown in Figure 2.

The drawings are given by way of examples and are not limitative of the invention. They constitute schematic representations of principle intended to facilitate the understanding of the invention and are not necessarily on the scale of practical applications. In particular, the dimensions of the different rooms are not representative of reality.

Referring to all the figures and in particular to Figure 1, the present invention relates to a panel 1 for sound renovation intended to be applied against a building element 2 of the wall or ceiling type, in Figure 1 a wall. This panel 1 is advantageously a panel 1 for interior renovation in a building structure and is not confronted with outside weathering.

The renovation panel 1 comprises a flat frame 3 having cavities 4 passing right through the frame 3 surrounded by a frame body. These cavities 4 can pass entirely through the renovation panel 1 of an applied face 3b against the building element 2 on the opposite face 3d, advantageously extending in the thickness of the frame 3.

The frame body also includes hollow partitioned chambers 3a filled with air while being sealed towards the outside. These hollow chambers 3a are most visible in FIG. 3 by being at the junction of four cavities 4 in the frame body, which is not limiting.

For simplicity and clarity of the figures, a single hollow chamber is referenced 3a in the figures as well as a single through cavity 4 but what is stated for the referenced hollow chamber or the referenced through cavity is also valid respectively for all hollow chambers 3a or the cavities 4. FIG. 3 illustrates a portion of weft 3 enlarged with respect to the weft 3 illustrated in FIG. 2.

At least most of the cavities 4 are filled with a first sound coating. In FIG. 1, all the cavities 4 are filled with a first coating drawn in dark in this figure. Leaving cavities 4 empty increases the sound insulation, such cavities 4 becoming similar to hollow chambers 3a closed because covered with a layer 5 of the first coating. On the other hand, this weakens the renovation panel 1.

This is to be avoided and a compromise can be found between filling all the cavities 4 with the first coating and leaving a large number of cavities 4 empty with the first coating. However, filling all 4 through cavities with first plaster is possible.

For coating the renovation panel 1, a layer 5 of the first coating is also applied to one face 3c of the frame 3 so as to completely cover the frame body at least on this face, this face being said face of coating 3c and being opposite to the applied face 3b of the frame 3 against the building element 2.

As can be seen in FIG. 1, a layer 6 of at least one second sound coating can be applied to layer 5 of the first coating. The layer of the second coating or the layers of the additional coatings may each be one to two millimeters. In general, two or three layers of plaster are sufficient, but this is not limiting.

To facilitate the smoothing work, the first coating, the second coating and, if necessary, the additional coatings are self-smoothing. The first coating, the second coating and, where appropriate, the additional coatings may have different compositions or have the same composition.

Finally, the renovation panel 1 may comprise a layer 7 of acrylic acrylic paint coating the layers of the first coating 5 and the second coating 6 and, if necessary, the layers of the additional coatings.

To ensure its role as a soundproofing coating, at least the first coating, as the only coating deposited or among the coatings deposited on the frame 3, may initially comprise a mixture of coating material and beads air.

The air beads disintegrate during drying of the first coating so that the first coating takes the form of a phonically insulating foam in the renovation panel 1. It is therefore important to allow the first coating to dry before applying an additional layer on the first coating.

To have a frame 3 as regular and as strong as possible, the frame 3 can form a honeycomb by presenting hexagonal cavities 4. It is also possible to have 4 through cavities arranged non-uniformly in the frame body. The frame 3 can be made of glass fibers, paper or cardboard.

Without being limiting, the frame 3 may have a thickness of three to four millimeters, the first coating layer 5 being from one to two millimeters, like the additional coating layers if necessary.

The invention relates to a set of a building element 2 of the wall or ceiling type supporting at least one panel 1 for sound renovation applied against the building element 2, the panel 1 for sound renovation being as previously described . It is frequently necessary to provide several sound renovation panels 1, assembled one next to the other while being joined, to coat a construction element 2, the panels 1 having to have a size suitable for their handling.

As can be seen in FIG. 1, the panel 1 for sound renovation has an applied face 3b of the frame 3 against the building element 2 and a coating face 3c opposite to the applied face 3b, the face 3c coating being coated with the layer 5 of first sound coating.

During the introduction of the first phonic coating into the major part of the cavities 4 passing through the coating face 3c, an amount of the first phonic coating filling each of the cavities 4 with this major part of the cavities 4 reaches up to level of the applied face 3b of the frame 3 against the element 2 of construction.

This amount of first sound coating arriving for each of the cavities 4 filled with coating at the level of the applied face 3b of the frame 3 against the building element 2 makes the bonding of the frame with the building element 2 , this at the outlet of each cavity 4 filled with the first coating. It is not necessary that the entire applied face 3b of the frame 3 against the construction element 2 is coated with this quantity of first sound coating, the presence of first coating at the outlet of each cavity 4 on the applied face 3b being sufficient.

In fact, only outlet zones of each cavity 4 on the applied face 3b can thus be coated with this quantity of first sound coating, these zones having to have a total surface area and be distributed so as to ensure uniform joining by bonding between the frame 3 and the construction element 2. There is no need to coat the applied face 3b of the frame 3 other than by opening a coating with each cavity 4 filled at the level of the applied face 3b of the frame 3.

The first phonic coating is selected to perform a bonding action between the applied face 3b of the frame 3 and the building element 2.

Giving the first soundproofing a role of filling the through 4 cavities and a role of bonding the frame 3 on the building element 2 is an essential point of the present invention. This can only be achieved by through cavities 4 both on the coating face 3c and on the applied face 3b of the frame 3 and by a coating having bonding properties.

In the state of the art, it is possible to use a frame having cavities but these cavities are blind on the side of the face applied to the frame against the building element, hence an impossibility of arrival d 'A filling material of the cavities at the outlet of each cavity on the applied face 3b when such a material is provided, which is not necessarily the case.

The present invention finally relates to a method of applying at least one renovation panel 1 on a building element 2 of the wall or ceiling type in order to produce such an assembly.

The method comprises a step of applying the frame 3 against the building element 2 by its applied face 3b and maintaining a pressure of the frame 3 against the building element 2.

Simultaneously with this step, the method comprises a step of coating the frame 3 with a first sound coating via the coating face 3c of the frame 3, the major part of the through cavities 4 then being filled with the first coating . A quantity of the first coating arrives at the applied face 3b opposite the coating face 3c and performs the bonding of the applied face 3b against the construction element 2 at the outlet of the cavities 4 on the applied face 3b.

The method finally comprises a step of coating the coating face 3c of the frame 3 with a layer 5 of first sound coating sufficient to completely cover the coating face 3c, this coating step being followed by a waiting for the first plaster to dry.

In this method, it can be carried out a coating of at least one layer 6 of a second sound coating, layer 6 of at least one second sound coating being applied to layer 5 of the first coating. It may then be expected that said at least one second coating has dried, the layer 6 of said at least one second coating may or may not be sanded. A layer 7 of phonic paint may finally be applied or not on layer 6 of said at least one second coating, advantageously after the coating of the coating face 3c of a third coating layer.

The packaging of the coating, as well for the first coating, the second coating and the other coatings used is produced in buckets from 10 to. The coating is ready to use.

After bonding the frame 3 against the building element 2, the layer 6 of the second coating can be deposited using knives and lianas. Layer 6 of the second coating has a thickness of three to four millimeters and follows the weft 3 to amplify the self-leveling system. The renovation panel 1 is therefore being planned more and more.

The sound insulation characteristics are then reinforced. At this stage of the process, the renovation panel 1 has a thickness of about eight millimeters, being composed of the weft 3 and the layers 5, 6 of the first coating and the second coating.

It is possible to coat, if necessary, the layer of the second coating with a third layer identical to the layer of the second coating over a thickness of one to two millimeters. The result is a sound quality and a flatness quality of the renovation panel 1 which are further amplified.

In this case, the average thickness of the renovation panel 1 at this stage of manufacture can be from nine to ten millimeters. The drying time of the third layer can be four hours.

It may be possible to apply a layer 7 of acrylic acrylic paint on the coating layer or layers 5, 6 overlapping. Acoustic acrylic paint can be chosen from microporous acoustic paints with a mat appearance. This results in a sound insulation property of the reinforced renovation panel 1 for optimal results.

The frame 3 can be glued having been cut into rectangular portions, advantageously cut from a substantially flat ream which can include, for example without being limiting, thirty rectangular portions, 1 meter by 0.8 meter.

Alternatively, this frame 3 can come from a roller, which is a storage means protecting it and having a reduced bulk. The unwinding of the roll allows easy cutting of rectangular portions of the frame 3. The packaging can be carried out with a width of approximately one meter over extended length. This is not preferred.

On the construction element 2, between a rectangular portion adjacent to a neighboring rectangular portion, there may be interposed a coating layer between the two rectangular portions for bonding the two rectangular portions to each other , which avoids using complementary male and female forms as shown in document FR-A-2 700 565.

The invention is in no way limited to the embodiments described and illustrated which have been given only by way of examples.

Claims (1)

claims [Claim 1] Panel (1) for sound renovation intended to be applied against an element (2) of wall or ceiling type construction, the panel (1) comprising a flat frame (3) having cavities (4) passing right through the frame (3) surrounded by a weft body, characterized in that the weft body has hollow, partitioned chambers (3a) filled with air and being airtight towards the outside, at least most of the cavities (4) being filled a first sound coating, a layer (5) of the first coating also being applied to one face (3c) of the frame (3) in order to completely cover the frame body at least on this face (3c). [Claim 2] Renovation panel (1) according to the preceding claim, in which a layer (6) of at least one second sound coating is applied to the layer (5) of the first coating, the layer (6) of said at least one second coating being from one to two millimeters. [Claim 3] Renovation panel (1) according to the preceding claim, in which the first coating and said at least one second coating are self-leveling. [Claim 4] Renovation panel (1) according to any one of the two preceding claims, in which the first coating and said at least one second coating are the same. [Claim 5] Renovation panel (1) according to any one of the three preceding claims, in which the layers (5, 6) of the first coating and of said at least one second coating are covered by a layer (7) of acrylic phonic paint. [Claim 6] Renovation panel (1) according to any one of the four preceding claims, in which at least the first coating initially comprises a mixture of coating material and air balls, the air balls disintegrating during drying of the first coating so that the first coating takes the form of a sound insulating foam in the renovation panel (1). [Claim 7] Renovation panel (1) according to any one of the preceding claims, in which the weft (3) forms a honeycomb by presenting hexagonal cavities (4). [Claim 8] Renovation panel (1) according to any one of the preceding claims, in which the weft (3) is made of glass fibers, paper or cardboard. [Claim 9] Renovation panel (1) according to any one of the preceding claims, in which the frame (3) has a thickness of three to four millimeters, the layer (5) of first coating being from one to two millimeters. [Claim 10] Assembly of a building element (2) of the wall or ceiling type supporting at least one sound renovation panel (1) applied against the building element (2), characterized in that the sound renovation panel (1) is according to any one of the preceding claims, the sound renovation panel (1) having an applied face (3b) of the frame (3) against the construction element (2) and a coating face (3c) opposite to the applied face (3b), the coating face (3c) being coated with the layer (5) of first sound coating, a quantity of the first sound coating filling a major part of the cavities (4) arriving at the level of the applied face (3b) of the frame (3) against the element (2) of construction, the first sound coating being selected to perform a bonding action between the applied face (3b) of the frame (3) and the element (2 ) of construction at the outlet of the cavities (4) on the applied side (3b). [Claim 11] Method for applying at least one renovation panel (1) to a building element (2) of the wall or ceiling type in order to produce an assembly according to the preceding claim, characterized by the following steps: - application of the frame (3) against the element (2) of construction by its applied face (3b) and maintenance of a pressure of the frame (3) against the element (2) of construction, - coating of the frame (3) with a first sound coating via the coating face (3c) of the frame (3), the major part of the through cavities (4) then being filled with the first coating, an amount of the first coating arriving at the applied face (3b) opposite the coating face (3c) and bonding the applied face (3b) against the building element (2) at the outlet of the cavities (4) on the applied face (3b), - coating of the coating face (3c) of the frame (3) with a layer (5) of first sound coating sufficient to completely cover the coating face (3c) and waiting for the drying of the first coating. [Claim 12] Method according to the preceding claim, in which there is provided a coating of at least one layer (6) of a second coating phonic, the layer (6) of at least one second plaster being applied to the layer (5) of the first plaster and drying of said at least one second plaster is expected, the layer (6) of said at least one second plaster being sanded or not and a layer (7) of phonic paint being applied or not on the layer (6) of said at least one second coating. [Claim 13] Method according to any one of the two preceding claims, in which the weft (3) is glued having been cut into rectangular portions, a rectangular portion being adjacent to a neighboring rectangular portion with the interposition of a layer of coating between the two rectangular portions for bonding the two rectangular portions to each other.