FR3042521A1 - INSULATION SYSTEM - Google Patents

Abstract

System for isolating and sealing vapor barrier of a part to be insulated comprising a hanger (10) adapted to be fixed on a support (5), the hanger comprising a rod (30) extending in an axial direction to a front end (12), and adapted to pierce a thermal insulator (2); the thermal insulation comprising a mat comprising a mineral wool and a vapor barrier coating, the coating being fixed on a surface of the mattress; a head (60) adapted to be attached to the front end of the shaft and adapted to receive a fur (8); and a portion of a vapor barrier seal sleeve (3) adapted to be attached to a surface of the thermal insulation coating such that it provides a vapor barrier seal between the insulation and the interior of the piece to isolate.

Description

Insulation system [1] The present invention relates to a system for the insulation of crawlers, attic ceilings, for example attics arranged, by means of hangers and the fixing of a support profile (also called fur) a doubling wall at a distance from a wall to be doubled by a thermal and / or acoustic insulation.

[2] There are currently various ways to insulate a wall, such as a wall, a ceiling such as an inclined ceiling, and / or a building roof with thermal insulation, such as insulation based on mineral fibers, whether in a new construction or during a renovation.

[3] For this, it is common to use a partition (against wall or false ceiling) said dubbing (for example a gypsum board, in particular type BA13 or other) that is just fixed, in particular by screwing , on a metal fur comprising rails to place it away from the wall.

[4] However, these rails must be attached to the wall to be doubled, for example beams such as rafters or ceiling joists, using lines that maintain the insulation and a membrane vapor barrier (wind and / or air barrier) between the lining wall and the wall to be doubled. This membrane is most often independent and interposed between the layer of fibrous material and the lining wall, typically contiguous to the partition, optionally interposed between two layers of thermal insulation. Thus, to cover an entire surface to be insulated, multiple regularly spaced lines are used.

[5] Each hanger typically comprises a rod-shaped main body extending transversely to the wall to be doubled and to the lining wall, one end of which is provided with means for attachment to a structural member of the wall to be doubled. and whose other end is provided with means for supporting a doubling fur.

[6] During installation, it is common to install the insulation by piercing through the rod of each line, which causes multiple piercing of the thermal insulation. Then, it is common to mount a fur using support, usually supports attached to the ends of the rods of the lines. Then there is a vapor barrier membrane on the inside of the fur, that is to say between the fur and the lining wall. The fixing of the lining partition on the fur involves the piercing of the membrane by fastening elements (staples, or self-drilling screws for example). This piercing of the membrane harms, although to a lesser extent, the tightness of the membrane.

[7] The positioning of the membrane in front of the fur raises another technical problem. Indeed, this configuration leaves little or no space (air gap) between the membrane and the doubling wall. However, it is often necessary to insert, behind the dubbing wall, different cables (electricity, ventilation, telecommunications, computer) or pipes (water network, air conditioning). It is therefore difficult to envisage, if not impossible, to place these accessories between the membrane and the lining wall.

[8] These cables or pipes can be placed behind the membrane, but it is no longer possible to access them for the maintenance or the evolution of the wiring installation without removing the membrane or opening it. In addition, cabling operations may, for reasons of logistics or changes in needs or technologies, occur after the doubling of the wall, which also requires the removal or opening of the membrane by stakeholders who do not are usually not specialized in wall lining and insulation. All these operations affect the integrity and the tightness of the membrane.

[9] Another solution is to have the vapor barrier membrane against the inner side surface of the thermal insulation, that is to say on the surface of the insulation on the side of the room to be insulated where the installer. The membrane is installed by piercing directly on the rod of your hanger and by wedging the membrane between two pinching means to create the seal. The piercing is particularly detrimental with regard to the membranes, because their sealing function, permanent or selective, is then altered. The piercing of the membrane may further constitute a tear initiation likely to spread if too much tension is exerted. It is therefore an object of the present invention to solve the aforementioned problems with a solution that is simple to manufacture, inexpensive, easy to implement and optimized in terms of efficiency, particularly with regard to compliance with sealing the membrane while providing a sufficiently large space accessible behind the lining wall to pass accessories such as cables and / or pipes.

[11] In the present application, "inner side" means side (or in the direction) of the room to be insulated while "outer side" means towards the outside of the room to be insulated. In general, the surfaces directly or indirectly (because hidden by an obstacle) facing the installer during the installation of the system are interior surfaces, the installer being at the time of installation in the room to isolate. Referring to Fig. 5, the inner side surfaces are the surfaces directly or indirectly visible to the installer facing the front end 32 of the rod.

[12] According to one of its aspects, the invention relates to a system for the insulation and sealing vapor barrier of a wall comprising a hanger adapted to be fixed on a support and comprising a rod s' extending in an axial direction to a forward end, and adapted to pierce a thermal insulator; the thermal insulation comprising a mat comprising a mineral wool and a vapor barrier coating, the coating being fixed on a surface of the mattress; and a head adapted to be attached to the front end of the shaft and adapted to receive a fur; and a portion of a vapor barrier sealant adapted to be secured to a surface of the thermal insulation coating such that the sealing sleeve provides a vapor barrier seal between the thermal insulation and the inside the room to isolate. According to another of its aspects, the subject of the invention is a method of installing a system for insulation and vapor barrier sealing of a room to be insulated comprising, in particular in the following order, the steps of fixing a hanger on a support, the hanger comprising a rod extending in an axial direction to a front end towards the inner side of the part to be insulated, the end of the rod being particularly pointed; optionally mounting a cap on the front end of the rod of the hanger before the piercing of the thermal insulation by ia rod hanger; installing a thermal insulation, including a mattress comprising mineral wool, including a vapor barrier coating, so that the rod of your hanger pierces the thermal insulation, the end of the rod projecting beyond the surface interior of thermal insulation coating; remove the cap optionally mounted on the front end of the rod of the hanger; attaching a portion of a vapor barrier sealant to the inner surface of the thermal insulation coating, particularly at the periphery of the shaft, such that it provides a vapor barrier seal between the outer surface and inside your room to isolate; and positioning a head at the end of the rod, the head removing adapted to receive a fur, including a metal fur. The system can be used to insulate a wall, such as a wall, a ceiling such as a sloped ceiling and / or a building roof, including a house or a residential dwelling.

[13] The hanger may be fixed to a wall to be doubled, such as a chevron, at the rear end of the rod of the hanger. The end of the rod of the hanger may comprise a mounting plate, in particular a fixing plate comprising one or two fins erected radially relative to the rod. Preferably, the fin is formed integrally with the rod. Each fin may comprise at least one orifice, including a series of aligned orifices substantially parallel to the stem, and may also include one or two orifices further away from the stem relative to the first set of ports.

[14] The plate may comprise two extreme position markers between which are provided at least one other intermediate mark, advantageously two, and preferably three intermediate marks, the distance between two consecutive marks being preferably always the same, for example about 1 centimeter. The rod of the hanger may also comprise, at the rear end and more particularly at the level of the plate, marks defining the positioning limits of the hanger on the support, for example the wall to be doubled, in particular on a beam. such as a chevron.

[15] The rod of the hanger may comprise a reinforcing core, including a metal reinforcing core, more particularly a threaded rod. The reinforcing core can then be covered with molded plastic material.

[16] The rod may comprise a radial stop ring to define the ideal and / or defined positioning distance of the fur support head as well as to provide a first pinch means. When installing the thermal insulation, it is preferable that the radial stop ring be in contact with the inner side surface of the thermal insulation coating.

[17] In a preferred embodiment, the leading end of the rod ends with a tip. The tip allows to pierce the mattress and the coating by progressively spreading the mattress and the coating as and when the depression and reduces or even avoid the risk of tearing of the coating. The tip may further comprise a base, the base of the tip may comprise a reinforcing core having notches, in particular regularly distributed on its periphery.

[18] In order to facilitate the installation of the thermal insulation and / or the coating through the stem of the hanger by piercing, it is preferable to use a removable cap, having for example a shape of ogive, which comprises a hollow shaft for mounting around the front end of the stem. Preferably the hollow shaft has an outer diameter identical or slightly smaller than the diameter of the radial stop ring. In a preferred embodiment, the diameter between the end and the base of the cap is less than or equal to the diameter of the stop ring, to prevent tearing of the coating. The cap preferably comprises a pointed end, particularly sharper than the pointed end of the rod, to facilitate the piercing of the thermal insulation, including piercing the coating with little or no tear. The cap barrel may include protuberances extending radially therein to cooperate with the outer surface of the forward end of the stem once the cap is mounted around it for the purpose of to promote its maintenance in position. The cap may further comprise on its outer surface one or more gripping notches to facilitate removal of the cap after use, arranged for example on either side of the barrel.

[19] The fur support head may be hollow and / or provide a second pinching means for the sealing sleeve. During installation, the head can be mounted and held at the front end of the rod, particularly around the stem, by radial clipping.

[20] The support head may be adapted to cooperate with the radial stop ring, particularly in the active position of use. For example, the support head and the radial stop ring form, in active use position, a radial locking jaw configured to clamp the sealing sleeve to create a thermal seal and / or vapor barrier.

[21] In an alternative embodiment, the support head is removably mounted and held in place around the rod with a key therethrough and cooperating with the rod. The support head may comprise through radial apertures for passage through the wedge, which is shaped like a "U" having two branches elastically deformable to move away and then tighten around the rod after passing through the openings.

[22] Preferably, the support head comprises at least a first annular seal formed on a gripping surface facing the radial stop ring and bearing on the latter in the active position of use. The support head may also comprise on the nip surface a second annular seal coaxial with the first seal and disposed substantially at the periphery of the nip surface. When the support head comprises a seal, it may be constituted by an elastomeric bead protruding from the gripping surface.

[23] In a preferred embodiment, the support head comprises a dome-shaped portion comprising a peripheral groove in which can slip a lining wall fur such as a rail, including a metal rail. Preferably, the support head is adapted to be compatible with the furs usually made available to the installer, including furs type F45 and F47. The head may comprise an axial space between the base of the dome portion and the nip surface, the space being able to measure between 5 and 20 mm, more particularly between 10 and 15 mm.

[24] The sealing sleeve is adapted to provide a vapor barrier seal between the thermal insulation and the interior of the room, especially between the outer side surface of the thermal insulation and the interior of the room. isolate. The sealing sleeve may comprise an inner side layer, in particular a layer of plastic material, for example polyester, PET or polyolefin, and an outer-side adhesive layer. The plastic layer may be metallized, for example, with aluminum. The adhesive layer is preferably protected by a release sheet for ease of use. In a preferred embodiment, the non-stick release film is pre-cut along its length in order to be able to easily remove a part, in particular half, and / or the entire non-stick film, for example by slightly folding the sealing sleeve. to loosen the nonstick film slightly. The sealing sleeve may have a thickness of at least 5 μm, at least 100 μm or at least 250 μm and / or less than 600 μm, less than 400 μm or less than 300 μm.

[25] The sealing sleeve may comprise an opening, in particular a circular central opening. Preferably, the opening is precut. The opening may have a diameter: - slightly less than the outer diameter of the rod; or - between the diameter of the rod and the outside diameter of the radial stop ring.

This diameter creates a vapor barrier seal around the stem. In the case where the diameter is smaller than the diameter of the rod, the sealing sleeve will be fixed on at least three parts of the system: - the rod, in particular a portion of the rod adjacent to the stop ring; - The ring, more precisely on the inner side surface of the ring; and - the vapor barrier coating of the thermal insulation, more precisely on the inner side surface of the vapor barrier coating.

In the case where the diameter of the opening is between the outside diameter of the stop ring and the diameter of the rod, the sealing sleeve will be fixed on the ring (more precisely on its inner side surface). and the vapor barrier coating (more precisely on its inner side surface) of the thermal insulation.

[26] The sealing sleeve may have a surface area of less than 250 cm 2, preferably less than 150 cm 2, especially less than 100 cm 2. Typically, the sleeve has a substantially square shape having a length of less than 15 cm, less than 12 cm, or less than 10 cm. This avoids over-use of the sealing sleeve material and thus reduces losses and costs. Moreover, it has been found that these dimensions are sufficient to obtain a good vapor barrier.

[27] The sealing sleeve is preferably fixed around the rod of the hanger, in particular the part of the adhesive layer closest to the opening is fixed on the rod and / or on the stop ring, the remaining of the adhesive layer being attached to the inner side surface of the thermal insulation coating. This makes it possible to obtain a sufficient seal which can be furthermore reinforced by pinching the part of the sleeve fixed on the radial stop ring between the latter and the gripping surface of the support head, in the active position of use.

[28] The thermal insulation comprises: - a mineral wool mattress comprising a main surface; and - a vapor barrier coating being fixed on the main surface of the mattress.

[29] The mineral wool mattress may comprise or consist essentially of mineral wool, the mineral wool may be glass wool and / or rockwool. The mineral wool mat comprising glass wool may have a density of at least 10 kg / m3 or at least 15 kg / m3 and / or a density of less than 30 kg / m3 or less than 25 kg / m3 . When the mattress comprises rock wool, the mattress may have a density of at least 20 kg / m3 or at least 25 kg / m3 and / or less than 80 kg / m3 or less than 70 kg / m3 . In order to provide effective thermal insulation, the thermal insulation may have a value of not more than 0.040 W / mK, not more than 0.035 W / mK, not more than 0.033 W / mK or not more than 0.032 W / mK mK

[30] The coating may comprise or consist essentially of a plastic material, for example one or more continuous films of plastic material. Preferably, the plastics material may be selected from polyesters and / or polyolefins. In a preferred embodiment, the coating comprises a continuous film of polyethylene terephthalate (PET). Other continuous films of plastics material may be used, for example: polyethylene film, especially high density polyethylene, ethylene polynaphthalate (PEN), polyethylene terephthalate (PTT) polybutylene terephthalate (PBT), polypropylene and / or polyvinyl chloride, polyacrylate. The vapor barrier coating may be metallized and / or comprise a metallized layer reinforced with a plastic film, especially at least one of the plastics listed above. Preferably, the coating comprises aluminum. These same materials can be used for the sleeve and / or the adhesive tape. The coating may also comprise a reinforcing reinforcement or lattice, for example made of yarn, especially glass yarn, in order to reinforce the coating.

[31] The coating may have a thickness in the range 5-100 μm, preferably 5-30 μm. The coating may be attached to a major surface of the mineral wool mat, preferably by an adhesive, especially a hot melt adhesive. The adhesive may comprise a polyethylene. Adhesion fixation avoids thermal bridging between the coating and the mattress, as well as improving the vapor barrier properties of the thermal insulation. When installing the thermal insulation, it is preferable that the coating is located on the inside of the room to be insulated, that is to say on the visible side of the installer.

[32] In a preferred embodiment, a sticky tape is used to form a vapor barrier seal at the interface of connections between two adjacent elements, such as between two adjacent thermal insulators and / or between a thermal insulator and a thermal insulation. support of the room, for example a wall.

[33] The adhesive tape may be at least 6 cm, at least 8 cm, at least 10 cm, at least 12 cm or at least 15 cm wide, to cover the interface quickly without the installer losing time during the application. The adhesive tape may comprise at least three layers stacked one on top of the other, a non-adhesive top layer, an adhesive layer, and a release release film. The upper layer may comprise a continuous plastic film, in particular a continuous metallized plastic film. The non-stick release film is preferably precut along its length so that only a portion of the release film, including half, can be removed. This makes it possible to lay the adhesive tape on one of the two elements (for example, a thermal insulator and / or a support of the part) before installing or carrying out tasks on the second element (for example, a thermal insulator and / or a support of the piece).

[34] In a first example, when sealing between two adjacent thermal insulators, the installer will remove all the non-stick film and simultaneously apply the adhesive layer on a portion of each thermal insulation, covering the interface between the two thermal insulators. The sticky tape is applied over the entire length of the interface between the two adjacent thermal insulators.

[35] In a second example, when sealing between a thermal insulator and the adjacent wall (also called pinion / crawling agreement), it may be preferable to apply a complementary adhesive, for example mastic such as an elastic mastic, on the wall where the sticky tape will adhere to ensure that the seal is optimal. The installer can stick a portion of the sticky tape on the thermal insulation by removing only half of the release film, then apply the additional adhesive on the wall, remove the other half of the non-stick film and then paste the remaining of the sticky tape on the additional adhesive put on the wall .. This allows to be sealed with one hand by the installer.

[36] For convenience during installation, a portion of a second sticky tape may adhere to a portion of a first sticky tape.

[37] In a preferred embodiment of the invention, the coating, the adhesive tape and the sealing sleeve comprise a surface, in particular the outer surface which is positioned during installation on the inner side of the part to be insulated. , having a similar or substantially identical color so as to have an overall surface of the system over the entire surface of a workpiece substantially homogeneous with the naked eye, especially as the installer moves away from the insulated surface .

[38] Preferably, the insulation system does not include other vapor barrier membranes except those described above and in this application. The vapor barrier seal sleeve, the vapor barrier coating and / or the adhesive tape may also be air barrier.

[39] The invention will now be described in more detail with reference to particular embodiments given by way of illustration only and shown in the accompanying figures in which: - Figure 1 is a perspective view of a part main of a line; - Figure 2 is a perspective view of the hanger provided with a support head, in a position before use; - Figures 3 and 4 are front and rear perspective views of a support head belonging to the hanger; - Figure 5 is a schematic side view of the different stages of installation of the hanger; - Figures 6 to 10 are top views showing each step of Figure 5; - Figures 11 and 12 are alternative embodiments of Figure 6; - Figures 13 to 17 are alternative embodiments of the support head and its mounting means and holding on the hanger; - Figure 18 is a front view of an alternative embodiment of a rear portion of the hanger; - Figure 19 is an exploded perspective view of a cap and a front end of the hanger around which it must be mounted; - Figure 20 is a perspective view similar to Figure 18 but in which the cap is mounted around the rod; FIG. 21 is a schematic perspective view of an installation step, in particular reference numeral 3 of FIG. 5.

[40] Figures 1 and 2 show a hanger 10 (also called spacer) adapted for an embodiment according to the present invention and for adjustably fixing a support profile of a lining wall remote from a wall to double with thermal insulation.

[41] This hanger 10 comprises a fastening plate 20 extending at a rear end 11, by a main longitudinal rod 30 terminating at a front end 12 by a tip 32. Typically the hanger 10 measures from a few centimeters to a few tens of centimeters, preferably between about 10 cm and 40 cm, for example 20 cm, the single rod measuring about 15 cm in this case.

[42] The tip 32 of the rod 30 has notches 33 distributed evenly around its periphery.

[43] The rod 30 consists of a metal core (not visible), for example a threaded rod, covered by overmolding a thin layer of plastic material 31.

[44] The hanger 10 also comprises a radial stop ring 50 formed by a molded plastic ring undeformable (that is to say non-elastic). Advantageously, the outer diameter of this ring 50 is greater by a few millimeters than that of the rod 30, for example from 0.5 to 3 mm and preferably from approximately 1 to 2 mm.

[45] The mounting plate 20 has two fins 22 arranged radially on the rod 30 and formed integrally therewith during overmolding plastic material. Each fin 22 comprises a first series of orifices 24 aligned parallel to the rod and two end lugs 25 each having an orifice 26 further from the rod than the first series of orifices 24.

[46] The mounting plate 20 also comprises pins 28 defining the positioning limits of the hanger 10 on the wall to be doubled, for example on a beam such as a chevron. These marks 28 are constituted by two lines of plastic material in overthickness oriented perpendicular to the rod 30 and spaced a few centimeters, for example between 1 and 8 cm, preferably about 2 to 5 cm, for example 4 cm. They make it possible to adjust the positioning of the hanger according to the dimensions of the structure on which it is fixed and the thickness of the insulation used.

[47] The hanger 10 finally has an independent head 60 (also called cap or key) provided for, in the use position, irreversibly clipping or dismountable around the rod 30, against the radial stop ring 50.

[48] The head 60 has a domed end portion 61 provided with a peripheral groove 62 in which can be slid a fur 8 such as a metal rail "C" of known type which is screwed on a lining wall such as a plasterboard.

[49] The head 60 is provided with a first annular seal 64 formed on a nip surface 65 facing the radial stop ring 50 and bearing on the latter in the active position of use.

[50] The head 60 is also provided on the nip surface 65 with a second annular seal 66 coaxial with the first seal 64 and disposed substantially at the periphery of said nip surface.

[51] Each seal 64 and 66 is constituted by an overmolded elastomeric bead protruding from the gripping surface 65 and ensuring a good airtightness.

[52] The head 60 further has an axial space 68 between the base 63 of the dome 61 and the nip surface 65, said gap 68 measuring between about 5 mm and 20 mm, preferably between 10 and 15 mm.

[53] The use of the hanger according to the present invention is in several steps, illustrated in Figures 5 to 10.

[54] In the example presented, it will be necessary to achieve an interior lining insulation of the attic of a dwelling, in particular its roof.

[55] In a first step (reference 1 figure 5, Figure 6) the hanger 10 is fixed cantilevered on the wall to be insulated, in particular on a chevron 5 framing. For this, the installer places the plate 20 perpendicularly to the side of the chevron 5 and positions it with the marks 28 to adjust the length that will exceed the chevron. The marks 28 thus make it possible to define the minimum and maximum positioning distances of the hanger 10 with respect to the edge of the chevron 5, as illustrated by FIGS. 11 and 12. Thus, the latter can take all possible positions between these two limits in order to to adapt to the conditions of implantation of the insulation and the lining wall without harming its fixation. Beyond the limits, especially if the hanger 10 exceeds too much of the chevron 5, the attachment may be insufficient, or even detach or break.

[56] Once the plate 20 is positioned, the installer fixes the hanger 10 in the side of the rafter 5 by placing screws (not shown) through the orifices 24 and 26. For this, it is advisable to distribute the screws evenly. longitudinally and on either side of the central rod 30. Advantageously, the screws are placed at the ends of each fin 22, that is to say in the orifices 26 of the ears 25. Four screws are enough but it is possible to add to the other holes 24 available to strengthen the attachment.

[57] This solution avoids the plates with weakness zones breakable of the prior art which lacked precision in their adjustment.

[58] The installer repeats these positioning and screwing operations for each line 10 along the various rafters of the wall to be insulated. To help align the lines between several rafters, a cord can be temporarily attached (the time of the operation of fixing the lines) at the front end 12 of a first hanger, including the hanger closer to a support of the part to isolate such as a wall. The cord is then unrolled horizontally to the nearest chevron of the support of the opposite piece to that previously described. A second hanger is then attached to this chevron so that the cord is attached substantially in the same place as the first hanger so that the two lines are aligned. The intermediate lines are then positioned thanks to the cordon stretched horizontally between the first two lines. Once all the lines have been laid, the cord is removed.

Once all the lines have been secured, the installer applies a first layer of thermal insulation (not shown) between the roof rafters of a roof as an inclined roof. This first layer of thermal insulation can be achieved by a mineral wool mat (glass wool type and / or rock wool) having a thickness of 200 mm and adapted to be positioned between rafters. A second layer of thermal insulation, superimposed on this first layer is described below: [60] The installer is hooked on the hanger a thermal insulation 2 having a thickness of 200 mm, the thermal insulation 2 comprising a mat of glass wool 200 and a coating 201 consisting of PET metallized aluminum on one of the surfaces of the mattress 200, the coating 201 facing the installer on the inside of the attic. The coating 201 has been fixed on the entire surface of the mattress 200 by a polyethylene (PE) -based adhesive. This operation, illustrated by reference numeral 2 in FIG. 5 and in FIG. 7, is facilitated by the notched tip 32 of the front end 12 of each line 10, in particular when the latter is provided with the cap 80 which pierces the coating. 201 without tearing it. The thermal insulation 2 is pushed into the hanger until the stop ring is positioned above the coating. The insulation 2 is then hooked to the lines piercing it and held in place thanks to the stop rings of each line. The cap 80 is then removed. If the stop rings do not allow the maintenance of the thermal insulation, the installer can then temporarily position a head 60, the time, for example, to get a sealing sleeve.

[61] The installer then positions a vapor barrier seal sleeve 3 pre-equipped with a central opening with a diameter slightly smaller than the diameter of the rod, from 0.5 to 3 mm difference, for example an opening having a 11 mm diameter, by mating on the pointed front end 32 of each hanger 10, as represented by the reference numeral 3 of Figure 5, by Figure 8 and Figure 21. The front ends of each hanger are not provided with the cap 80 or the support head 60. During this operation, it is important to ensure that the sealing sleeve 3 does not protrude through the radial stop ring 50 against which it must rest. . Given the intrinsic elasticity of the material constituting the sealing sleeve 3, the opening closes around the rod 30 by matching its shape. The adhesive layer of the sleeve makes it possible to fix the sleeve both on a portion of the rod 30, on the stop ring 50 and on the coating of the thermal insulation 201. All this contributes to good thermal insulation as well as a good vapor barrier.

[62] With the sealing sleeve 3 being placed, the installer closes the head 60 of each hanger 10 on its rod 30, which, moreover, will block the sealing sleeve. During this operation, illustrated by reference numeral 4 in FIG. 5 and in FIG. 9, the gripping surface 65 comes into contact with the sealing sleeve 3 and forms, with the radial stop ring 50, a locking jaw . Thus, the sealing sleeve 3 is sandwiched between the radially stable stop ring 50 and the gripping surface 65 of the head 60 on a continuous contact surface. The two seals 64 and 66 of the gripping surface 65 of the head 60 make it possible to avoid heat losses (fresh or hot air). In particular, the smallest peripheral seal 64 is substantially of the same external diameter as that of the radial stop ring 50 so as to trap the sealing sleeve 3 between them.

[63] The installer may, before the placement of the furs, provide the seal between the thermal insulators, with an adhesive tape fixed on the respective coatings and covering the interface between the thermal insulators as well as the interfaces between the thermal insulators and the walls or other supports of the wall by a sticky tape a part of which is fixed by the adhesive layer of the adhesive tape on the thermal insulation coating and the other half fixed on the wall by an elastic sealant, the adhesive tape covering the interface between the thermal insulation and the wall.

[64] The coating, the adhesive tape and the sealing sleeve having a similar metallic gray color, the overall appearance of the system is substantially homogeneous to the eye.

[65] In the last step, once all the heads 60 clipped on the rods 30 of the lines 10, the installer can position furrows 8 in "C" type known (also called support rails) by inserting the branches of the " C "in the peripheral groove 62 of each head, as shown in reference numeral 5 of FIG. 5 and in FIG.

[66] Before screwing the BA13 type plasterboard (or other) onto the metal rails 8, it is possible to use the axial space 68 to position various electrical cables or water pipes without damaging the thermal insulation and the sealing sleeve 3.

[67] It will be noted that the vapor barrier coating of the thermal insulation, as well as the sealing sleeve, are arranged at a distance from the rails, and therefore from the facing plates. The vacuum zone provided between the vapor barrier coating and the rails / plasterboard also significantly improves the thermal and / or acoustic insulation of the lining and thus of the room to be insulated.

[68] Thus, thanks to the present invention, it is possible to thermally and / or acoustically isolate a wall such as a wall, a frame or a ceiling, using easy-to-use, robust and adjustable suspension lines. . By design of these lines 10, the thermal insulation 2 is perfectly held in place. The presence of a vapor barrier coating on a surface of a mineral wool mattress facilitates installation while reducing installation time of the insulation system. The vapor barrier coating and the sealing sleeve 3 is also optimally positioned to ensure good insulation. The axial space 68 of the head 60 can place various cables or pipes and modify or add / remove if necessary without risking perforation of the vapor barrier coating and the sealing sleeve. Finally, this hanger 10 is adapted to the usual support rails, for example type F45 and / or F47 rails.

[69] According to an alternative embodiment illustrated in FIGS. 13 to 17, the head 60 can be removably attached to the rod 30 of the hanger 10.

[70] For this purpose, the head 60 is provided with through radial openings 67 and 69 for receiving a key 70 illustrated in detail in Figure 16). More specifically, the head 60 has in its structure, at the axial space 68, a first inlet opening 67 and, on the opposite side, two smaller outlet openings 69 aligned with the inlet opening 67 The inlet opening 67 is substantially wider than the total width of the two outlet openings 69.

[71] When the installer wishes to complete the installation of a hanger 10 whose rod is fixed on a chevron as described above, he mounts the head 60 on the end of the rod 30 to abut the surface pinch 65 with the radial stop ring 50, then it introduces the key 70 in the inlet opening 67. The branches 72 of the key being elastically deformable, they depart radially to the passage of the rod 30 then come close around the latter before coming out of the head 60 through the outlet openings 69.

[72] More specifically, the key 70 comprises a hollow inner portion 75 of circular section which engages the rod 30, which for this purpose has substantially the same diameter.

[73] Thus the head 60 is locked axially on the rod 30 so that it is then possible to come up the support rails of the insulation plates.

[74] An alternative embodiment of the suspension according to the invention is the subject of Figure 18. As can be seen, the plate 20 comprises two extreme position markers 28 between which are provided three further intermediate marks 29, the distance between two consecutive marks being always the same. In the example illustrated, the two extreme marks are arranged 4 cm apart so that each space between two consecutive marks is 1 cm, which allows a finer adjustment during installation.

[75] In accordance with Figures 19 and 20, the hanger 10 also comprises a removable cap 80 in the form of a warhead intended to be positioned around the indented tip 32 of the rod 30 to facilitate the racking of the insulator. For this purpose, the cap 80 comprises a hollow hollow shaft 81 having, at its base, a maximum external diameter identical to or slightly less than that of the radial stop ring 50, and a very pointed end 82. The outer diameter of the cap is such that it gradually increases from the tip to its base without the diameter being greater than the diameter of the ring. Furthermore, the tip of the cap is sharper than that of the front end of the rod to facilitate the piercing of the insulation blanket and the coating while avoiding the tearing of the coating of the thermal insulation.

[76] In addition, so that the cap 80 can be held in position during racking-in, the latter has protuberances 83 extending radially inside the barrel 81 to cooperate with the outer surface of the end. before 12 of the rod 30 once said cap 80 mounted around it bearing against the radial stop ring 50 (see Figure 19). Finally, the cap 80 is also provided on its outer surface, gripping notches 85 to facilitate its removal, said notches being for example disposed on either side of the shaft 81. The cap is removed after the installation of the thermal insulation and can be reused on another line not equipped with thermal insulation.

Claims (10)

CLAIMS 1 System for isolating and sealing vapor barrier of a part to be insulated comprising: - a hanger (10) adapted to be fixed on a support (5), in particular a chevron, the hanger comprising a rod (30 ) extending in an axial direction to a front end (12), and adapted to pierce a thermal insulator (2); and a thermal insulation comprising a mattress (200) comprising a mineral wool and a vapor barrier coating (201), the coating being fixed on a surface of the mattress; and - a head (60) adapted to be attached to the front end of the rod and adapted to receive a fur (8), in particular a metal fur; and a portion of a vapor barrier seal sleeve (3) adapted to be fixed on a surface of the thermal insulation coating, in particular at the periphery of the rod, so that the sealing sleeve provides a vapor barrier seal between the thermal insulation and the interior of the room to be insulated. 2 System for insulation and vapor barrier sealing of a part to be insulated comprising: - a hanger (10) fixed on a support (5), in particular a chevron, the hanger comprising a rod (30) extending in an axial direction to a front end (12) and piercing a thermal insulator (2), the forward end of the rod projecting beyond the thermal insulator on the interior of the workpiece to be insulated; and - the thermal insulation comprising a mat (200) comprising a mineral wool and a vapor barrier coating (201), the mat and the vapor barrier coating each having an inner side surface and an outer side surface, the surface the outer side of the coating being attached to the inner side surface of the mattress, the thermal insulation coating being positioned on the inner side of the part to be insulated; and a vapor barrier sealing sleeve (3), a portion of which is fixed to the inner surface of the thermal insulation coating, in particular at the periphery of the rod, so that the sealing sleeve provides a seal vapor barrier between the outer surface of the insulation and the interior of the room to be insulated; and - a head (60) attached to the front end of the rod and adapted to receive a fur (8), in particular a metal fur. Insulating system according to one of the preceding claims, wherein the sealing sleeve (3) comprises a pre-cut opening, in particular a circular central opening, the opening having a diameter: substantially equal to the diameter of the rod; or - less than the diameter of the stem. An insulation system according to one of the preceding claims, wherein the vapor barrier seal sleeve (3) comprises an adhesive layer adapted to be attached to the inner side surface of the coating. Insulation system according to one of the preceding claims, wherein the sealing sleeve (3) comprises at least one of the following characteristics: 5.1 the sealing sleeve has a surface area of less than 250 cm 2, preferably less than 150 cm2, in particular less than 100 cm2; 5.2 the sleeve has a substantially square shape with a length of less than 15 cm, less than 12 cm, or less than 10 cm; 5.3 the sealing sleeve has a thickness in the range 5-600 μm; 5.4 the sleeve comprises a removable release layer covering an adhesive layer. 6 insulation system according to one of the preceding claims, wherein the hanger (10) comprises a radial locking ring (50), in particular a radial stop ring formed integrally with the rod (30) and adapted defining a stop position of the head and preferably wherein the radial stop ring (50) and the head (60), the head being in particular a hollow head, are adapted to form, in the active position of use, a locking jaw. Insulation system according to one of the preceding claims, wherein the coating comprises at least one of the following characteristics: 9.1 the coating comprises a continuous sheet of a plastic material, in particular a selected material from the group of polyesters and / or polyolefins; 9.2 the coating has a thickness in the range 5-100 μm, preferably in the range 5-30 μm; 9.3 the coating comprises a metallized plastic layer, in particular a layer comprising aluminum; 9.4 the coating is attached to the mattress by an adhesive, the adhesive being a hot melt adhesive, in particular an adhesive comprising a polyethylene. 8 Method of installing a system for insulation and vapor barrier sealing of a part to be insulated including, in particular in the following order, the steps of: - fixing a line (10) on a support ( 5), the hanger comprising a rod (30) extending in an axial direction to a front end (12) towards the inner side of the part to be insulated, the end of the rod being particularly pointed; - Optionally mount a cap (80) on the front end of the rod of the hanger before the penetration of the thermal insulation by the rod of the hanger; - installing a thermal insulation (2), in particular a mattress comprising mineral wool (200), comprising a vapor barrier coating (201), so that the rod of the hanger pierces the thermal insulation, the end of the rod projecting beyond the inner surface of the thermal insulation coating; - remove the cap optionally mounted on the front end of the rod of the hanger; - Fix a portion of a vapor barrier seal sleeve (3) on the inner surface of the thermal insulation coating, particularly at the periphery of the rod, so that it provides a vapor barrier between the outer surface and the interior of the room to be insulated; and - positioning a head (60) at the end of the rod, the head being adapted to receive a fur (8), in particular a metal fur. The method of claim 8, wherein positioning the head (60) at the end of the shaft comprises gripping the seal sleeve between a radial stop ring (50) and the support head, the radial ring of stop being formed integrally with the rod and defining a stop position of the support head. The method of claim 8 or claim 9, further comprising the step of providing vapor barrier sealing: between two adjacent thermal insulators by a sticky tape along the interface between the two thermal insulators, the sticky tape being positioned on the inner side surface of the vapor barrier coating of each thermal insulation; and / or - between the thermal insulator and a support of the part to be insulated adjacent by a sticky strip along the interface between the support and the thermal insulator, a first portion of the adhesive strip being fixed on the surface of interior side of the vapor barrier coating of the thermal insulation and a second portion of the adhesive strip being fixed on the support.