FR3093523A1 - Device and method for installing interior insulation. - Google Patents

Abstract

DEVICE AND PROCEDURE FOR LAYING AN INTERIOR INSULATION. The invention relates to a spacer block 6 for laying an interior insulation 1 against a wall 2, said block comprising means for forming a spacer between a compact insulation 3 and the wall 2, intended to be glued against a wall. surface 7 of the wall, and comprising means for maintaining a fibrous insulation 4 pressed against this surface 7. The invention also relates to laying methods using such pads. Such processes greatly facilitate the laying of hydroelectric networks between the insulators. Figure for the abstract: figure 1

Description

Device and method for laying interior insulation.

The present invention relates to the field of wall linings, in particular for interior insulation of a building.

The 2012 thermal regulations involve handling increasingly thicker lining complexes. In addition, the evolution of the Unified Technical Document 25.42 (DTU 25.42) requires the passage of hydroelectric networks on the "hot" side of the insulation.

The "Placomur® DuoPass" system, proposed by the company Saint-Gobain®, is known in particular to meet this constraint. This system uses a first insulating plate, grooved vertically, placed on the cold side, and a second insulating plate serving as a facing for the part and placed against the first plate. The grooves are used for the passage of the networks. This solution has several drawbacks. First, it is difficult to make the position of the grooves coincide with a desired choice for an outlet of the networks in the room, that is to say a position provided for sockets, switches or taps, for example. Also, the grooves are only vertical, and it may be necessary to create horizontal grooves. In addition, it is necessary to cut both plates to fit the dimensions of the room.

The object of the invention is to propose a simpler and faster laying system and method, while complying with the regulations cited.

To achieve its object, the invention proposes a spacer pad for laying interior insulation against a wall to be insulated, this insulation comprising a first insulator and a second insulator, the first insulator being intended to be placed between the wall to be insulated and the second insulator, the stud comprising:

- means for forming a spacer between the second insulator and said wall,

- a first face, intended to be fixed, preferably by gluing, against a surface of one of the wall and the second insulator,

- A second face provided to be glued to the other among the second insulator and the wall; and,

- Means for holding the first insulator against the surface.

The means for maintaining the first insulator against the surface can comprise a widening, preferably progressive, of the pad between the first face and the second face. Preferably, the stud has a frustoconical shape.

The stud can be in several parts, for example in two parts, nestable one inside the other. Advantageously, the parts comprise mutual engagement means.

Advantageously, at least one of the faces comprises a basin and, preferably, at least one channel connecting this basin with a periphery of the stud.

The invention also proposes a first method for lining a wall, comprising the steps for:

- Provide studs according to the invention;

for each plot:

- fix the first face of the stud on the inner surface of the wall to be insulated;

- make a through cut in the first insulator;

then,

- repeat the cutting and fixing phases for each of the studs; then,

- Place the first insulator against the wall, so that each stud passes through a respective cutout; then,

- install and fix, if necessary, hydroelectric networks on the first insulator;

- glue the second side of each stud; then,

- stick the second insulator on this second face.

The invention also proposes a second method for lining a wall, comprising the steps for:

- lay the second insulator horizontally, including a possible facing being underneath;

- Lay and fix, if necessary, hydroelectric networks on an upper surface of this second insulator;

- Provide studs according to the invention;

for each of said plots:

- fix the first face of the pedestal against the upper surface;

- make a through cut in the first insulator;

repeat the fixing and cutting phases for each of said studs, then:

- Place the first insulator against the surface, so that each stud passes through a respective cutout; then,

- glue the second side of each stud; and then,

- set up the assembly thus constituted, in order to glue the studs against the wall to be insulated.

The second insulator may comprise an interior plaster facing and/or an expanded polystyrene board. For example, the insulation can be of the type comprising an expanded polystyrene plate and a plasterboard glued together, for example of the "Placomur®" type, offered by the company Saint-Gobain®.

The first insulator may comprise a blanket of mineral fibers. For example, it may be of the rock wool or glass wool mattress type.

Several embodiments of the invention will be described below, by way of non-limiting examples, with reference to the appended drawings in which:

is a schematic view in vertical section, of a thermal insulation, using a pad according to the invention;

is a schematic section illustrating a method of laying insulation according to the invention;

illustrates, schematically and in section, a second embodiment for a stud according to the invention, in two frustoconical parts;

illustrates a third embodiment for a pad according to the invention and its method of manufacture from a polystyrene plate;

illustrates, schematically and in section, a fourth embodiment for a stud according to the invention, in two cylindrical parts; and,

illustrates, schematically and in section, a fifth embodiment for a stud according to the invention, and a method of laying the associated seal.

Figure 1 illustrates a complex 1 for the interior thermal insulation of a wall 2. This wall can be an exterior wall of a building. In Figure 1, the interior of the building is denoted N, the exterior is denoted E.

The insulating complex comprises a first insulator 4, fibrous, arranged between the wall 2, and a second insulator 3, compact. The first insulator is placed between the wall 2 and the compact insulator 3. Studs 6 are placed through the fibrous insulator 4, so that they form a spacer between an inner face 7 of the wall 2 to be insulated and compact insulation 3.

In the example illustrated, the compact insulation comprises a polystyrene plate 10 and a plasterboard 11 glued together. The polystyrene plate 10 has a thickness H10 equal to 50 millimeters and the plasterboard has a thickness H1 equal to 10 millimeters. The plasterboard 11 is provided to form an interior facing of the building. This insulation is rigid.

The fibrous insulation 4 is a "mattress" of mineral wool, of thickness E4, substantially equal to 50 millimeters. This insulation has a certain flexibility and it is not self-supporting, that is to say that if this mattress is placed vertically, it tends to sag.

In the example illustrated in Figure 1, each stud 6 has a frustoconical shape, it therefore comprises a first face forming a small base 12 of the truncated cone and a second face forming a large base 13 of the truncated cone. The two faces 12, 13 are parallel to each other. The pad 6 is made of expanded polystyrene, so that it does not constitute a thermal bridge between the wall and the second insulator 3, which is compact.

A first laying method according to the invention will be described with reference to Figure 1. In this method:

for each plot:

- the small base 12 of the stud 6 is coated with a first layer of glue 15 and glued to the inner surface 7;

- A through cut 14 is made in the mattress 4;

and,

- the cutting and gluing phases are repeated for each of the studs;

then, after the glue has dried,

- the mattress 4 is placed against the wall to be insulated, so that each stud passes through a respective cutout.

Thus, the frustoconical shape of each stud constitutes means which make it possible to maintain the mattress 4 pressed against the inner surface 7, without it collapsing.

Hydro-electric networks 20 are then placed and fixed on the mattress 4, on the inside.

Finally, the large base 13 of each pad 6 is coated with a second layer of glue 16, then the compact insulation 3 is glued onto the pads 6. The hydro-electric networks 20, taking advantage of the flexibility of the fibrous insulation , sink into the mattress 4, as shown in Figure 1.

Each stud 6 has a thickness E6, measured perpendicular to the bases 12, 13, close to the thickness E4 of the insulating blanket 4. Preferably the thickness E4 of the blanket is substantially equal to the thickness E6 of a stud plus the thicknesses EC of the two layers of glue 15.16, i.e.: E4 = E6 + 2 x EC.

We will now describe a second method for laying insulation according to the invention, with reference to Figure 2. In this method:

- The compact insulation is placed horizontally, the layer of plaster 11 below;

- The hydroelectric networks 20 are placed and fixed on an upper surface 17 of the compact insulator thus arranged;

For each plot:

- the small base 12 of the stud 6 is coated with a first layer of glue 15 and the glue on the upper surface 17;

- A through cut 14 is made in the mattress 4;

and,

the cutting and gluing phases are repeated for each of the studs, then, after the glue has dried:

- the mattress 4 is placed against the surface 17, so that each stud passes through a respective cutout;

- the large base 13 of each stud 6 is coated with a second layer of glue 16; and then,

- the assembly 3, 4, 6, 20 thus formed is straightened vertically, in order to stick the studs against the wall 2.

Thanks to the tapered shape of each stud 6; the assembly 3, 4, 6, 20 is held in one piece.

FIG. 3 illustrates a second embodiment for a pad according to the invention. In this embodiment, the stud is in two tapered parts around an axis X6 of the stud 6. The two parts are made of expanded polystyrene.

A first part 21 has a full frustoconical shape, so the small base forms the small base 12 of the stud 6.

The second part 22 has a tapered tubular shape. The large, annular base of the second part forms the large base 13 of the stud 6. The second part further comprises an interior empty volume 23.

The inner frustoconical surface 25 of this volume 23 and the outer frustoconical surface 26 of the first part have substantially the same inclination A around the axis X6 of the stud. Thus, the first part 21 can be fitted into the second part 22, through the volume 23, so that the first part partially emerges through the small annular base 27 of the second part 22. The two parts can be provided to remain interlocked together, in the position illustrated in Figure 3, by wedging the cone, or by using a little glue available for installing the insulation.

Advantageously, the two parts have respective thicknesses E21, E22 that are substantially equal to each other, so that the first part 21 can be housed in the volume 23, which facilitates the transport and storage of the pads. Such a pad also makes it possible to use less material while maintaining good insulation.

FIG. 4 illustrates a third embodiment for a pad 6 according to the invention, which will be described in that it differs from the second embodiment previously illustrated.

In this embodiment, the two parts 21, 22 are of rectangular section, and their respective thicknesses E21, E22 are identical to each other. Thus, such a stud can be mass-produced by cutting a polystyrene plate, without loss of material. A stud can be formed by gluing the two parts together. The drying time of the glue between the parts can allow adjustment of the position of the facing 11.

FIG. 5 illustrates a fourth embodiment for a pad 6 according to the invention, which will be described in that it differs from the second and third embodiments previously illustrated.

In this embodiment, the two parts 21, 22 are cylindrical. They include mutual engaging means 27,28, to prevent axial slippage of one part relative to the other. In the example illustrated, the gripping means comprise a boss, formed inside the second annular part 22, and a notch 28 formed on the first part 21, and provided to receive the boss 27 therein.

In addition, the first face 12 and the second face 13 each include a bowl 31 to receive glue. Channels 32 are formed in each face to connect this bowl with the periphery of the pad; they make it possible to evacuate an overflow of glue during gluing.

FIG. 6 illustrates a fifth embodiment for a stud 6 according to the invention, which will be described in that it differs from the previously illustrated embodiments.

In this embodiment, the stud is in a single part. It has a recess 33 of large volume compared to the volume of the stud. This recess is open in the first face 12.

In the illustrated laying mode, the recess is intended to be filled with glue, during the gluing of the pad on the surface 7 of the wall 2 to be insulated. Once the glue has dried and hardened, after having placed the first insulator 4, the second layer of glue 12 is applied and the second insulator 3 is placed. Before the second layer of glue 16 dries, a screw 34 is placed through of the second insulator 3, into the hardened glue 15. The screw 34 allows adjustment of the position of the second insulator 3, before the second layer of glue 16 dries.

Of course, the invention is not limited to the preferred embodiments which have just been described but, on the contrary, the invention is defined by the claims which follow.

It will indeed appear to those skilled in the art that various modifications can be made to the embodiments described above, in the light of the teaching which has just been disclosed to them.

Thus, instead of being entirely frustoconical, a stud can only be partially so. Thus, it may comprise a portion of constant section, for example cylindrical, and a frustoconical portion to maintain the first insulator.

Also, a stud can have other shapes; it can in particular be of trapezoidal shape, so that it can easily be cut out of a parallelepipedic plate of expanded polystyrene. Other shapes may be provided.

Also, the means for holding the studs can comprise hook-forming inserts, for example metal or plastic inserts. Thus, a stud may have a constant section and the inserts may be barbules arranged at the periphery of the stud, preventing the mattress from shrinking.

In addition, a pad can be made of any other material having a sufficiently low thermal conductivity not to create a thermal bridge between the wall to be insulated and the compact insulator.

Rather than using a layer of hardened glue to secure a set screw, the stud can include an insert for receiving the screw.

Instead of gluing the studs to the wall to be insulated, they can be fixed there using a knock-in dowel.

Instead of a first fibrous insulation, it is possible to use as a first insulation a flexible insulation of the alveolar type, such as "BOOST'R HYBRID'"™ or "Hybris"™ from the company Actis™.

Claims (10)

Spacer pad (6) for laying interior insulation (1) comprising a first insulator (4) and a second insulator (3), the first insulator being provided to be placed between said wall to be insulated and said second insulator (3),
characterized in that it comprises:
- means for forming a spacer between the second insulator (3) and said wall (2),
- a first face (12), intended to be fixed, preferably by gluing, against a surface (7,17) of one of said wall and said second insulator,
- a second face (13) intended to be glued to the other of said second insulator and said wall; and,
- Means for holding the first insulator (4) against said surface (7,17). Stud according to Claim 1, characterized in that the means for holding the first insulator (4) against the surface (7, 17) comprise a widening of the stud between the first face (12) and the second face (13). Pedestal according to Claim 2, characterized in that it is in two parts (21,22) which can be nested one inside the other. Stud according to Claim 3, characterized in that the parts comprise means of mutual engagement (27,28). Pedestal according to one of Claims 1 to 4, characterized in that at least one of the faces (12, 13) comprises a bowl (31) and, preferably, at least one channel (32) connecting the said bowl with a periphery of the plot. Stud according to one of Claims 1 to 5, characterized in that it comprises an insert designed to receive a screw (34) for adjusting a position of the second insulator (3). Method for lining a wall, characterized in that it comprises the steps for:
- providing studs (6) according to one of claims 1 to 6;
for each of said plots:
- fixing the first face (12) of said pad on the inner surface (7) of the wall (2) to be insulated;
- Make a through cut (14) in the first insulator (4);
then,
- Repeat the cutting and fixing phases for each of said studs; then,
- Laying the first insulator (4) against said wall (2), so that each stud passes through a respective cutout (14); then,
- Laying and fixing, if necessary, hydroelectric networks (20) on said first insulator (4);
- glue the second face (13) of each stud (6); then,
- sticking the second insulator (3) on said second face (12). Method for lining a wall, characterized in that it comprises the steps for:
- Lay the second insulator (3) horizontally, including a possible facing (11) being below;
- Laying and fixing, if necessary, hydroelectric networks (20) on an upper surface (17) of said second insulator;
- providing pads (6) according to one of claims 1 to 5;
for each of said plots:
- fixing the first face (12) of the pad (6) against said upper surface (17);
- make a through cut (14) in the first insulator (4);
repeat the fixing and cutting phases for each of said studs, then:
- Laying the first insulator (4) against said surface (17), so that each stud passes through a respective cutout (14); then,
- glue the second face (13) of each stud (6); and then,
- set up the assembly (3, 4, 6, 20) thus constituted, in order to glue the studs against said wall (2). Method according to one of Claims 7 and 8, characterized in that the second insulator comprises an internal plaster facing and/or an expanded polystyrene board. Method according to one of Claims 7 to 9, characterized in that the first insulator comprises a mat of mineral fibres.