BE1024966B1 - THERMALLY INSULATING FACTORY INSULATION SYSTEM FOR INSULATION INSIDE A BUILDING - Google Patents

Abstract

The invention relates to a thermal insulation system (4) of against-partition for the insulation of a wall from inside a building, and a counter-partition equipped with such a system. The system comprises vertical rails (31), connecting pieces (26), vertical posts made of a low thermal conductivity material, thermally and rigidly insulating vertical panels, said panels interlocking with the uprights, lower rails fixed to the floor of the building and upper rails fixed to the ceiling of the building, said low and high rails respectively receiving the lower and upper ends of the uprights and panels.

Description

(30) Priority data:

10/20/2016 FR 1660206 (73) Holder (s):

TONNOIR Patrice

7542, MONT-SAINT-AUBERT

Belgium (72) Inventor (s):

TONNOIR Patrice

7542 MONT-SAINT-AUBERT

Belgium (54) COUNTER-PARTITION THERMAL INSULATION SYSTEM FOR INSULATION BY INSIDE A BUILDING (57) The invention relates to a thermal insulation system (4) for a counter-partition for the insulation of a wall through the interior of a building, and a counter-partition equipped with such a system. The system comprises vertical rails (31), assembly parts (26), vertical uprights made of a material with low thermal conductivity, vertical thermally and rigid insulating panels, said panels fitting into the uprights, low beams fixed to the ground of the building and high beams fixed to the ceiling of the building, said low beams and

Figure 1

31a high receiving respectively the lower and upper ends of the uprights and the panels.

BELGIAN INVENTION PATENT

FPS Economy, SMEs, Classes

Medium & Energy

Intellectual Property Office

Publication number: 1024966 Deposit number: BE2017 / 5736

International Classification: E04F 13/075 Date of issue: 04/09/2018

The Minister of the Economy,

Having regard to the Paris Convention of March 20, 1883 for the Protection of Industrial Property;

Considering the law of March 28, 1984 on patents for invention, article 22, for patent applications introduced before September 22, 2014;

Given Title 1 “Patents for invention” of Book XI of the Code of Economic Law, article XI.24, for patent applications introduced from September 22, 2014;

Having regard to the Royal Decree of 2 December 1986 relating to the request, the issue and the maintenance in force of invention patents, article 28;

Given the patent application received by the Intellectual Property Office on October 16, 2017.

Whereas for patent applications falling within the scope of Title 1, Book XI of the Code of Economic Law (hereinafter CDE), in accordance with article XI. 19, §4, paragraph 2, of the CDE, if the patent application has been the subject of a search report mentioning a lack of unity of invention within the meaning of the §ler of article XI.19 cited above and in the event that the applicant does not limit or file a divisional application in accordance with the results of the search report, the granted patent will be limited to the claims for which the search report has been drawn up.

Stopped :

First article. - It is issued to

TONNOIR Patrice, Rue Guerbion n ° l, 7542 MONT-SAINT-AUBERT Belgium;

represented by

RIFFLART David, 85 Place Marmottan, 62400, BETHUNE;

a Belgian invention patent with a duration of 20 years, subject to payment of the annual fees referred to in article XI.48, §1 of the Code of Economic Law, for: THERMAL INSULATION SYSTEM OF COUNTERCLOISON FOR AN INSULATION INSIDE A BUILDING.

INVENTOR (S):

TONNOIR Patrice, Rue Guerbion n ° l, 7542, MONT-SAINT-AUBERT;

PRIORITY (S):

10/20/2016 FR 1,660,206;

DIVISION:

divided from the basic application: filing date of the basic application:

Article 2. - This patent is granted without prior examination of the patentability of the invention, without guarantee of the merit of the invention or of the accuracy of the description thereof and at the risk and peril of the applicant (s) ( s).

Brussels, 04/09/2018, By special delegation:

2017/5736

BE2017 / 5736

THERMAL INSULATION SYSTEM

FOR INSULATION INSIDE A BUILDING

Technical area

The present invention relates to the field of partition walls for insulation from the inside of a building, such an interior partition wall with its insulation system being implemented generally by means of insulating panels, plates coating and rails and rails allowing the maintenance of said panels and plates.

State of the art

Various thermal insulation systems are known allowing the implementation of interior counter-partitions on buildings. These various systems are, however, ineffective.

In fact, these thermal insulation systems generally use frameworks made of rails and metal rails which constitute thermal bridges between the cold zone, on the side of the wall of the building, and the hot zone, on the side of the fixed covering plate. to this metal frame.

In addition, these thermal insulation systems use flexible insulation generally based on mineral wool, which is extended vertically over the height of the wall and held by the framework. In the case where the metal frame is fixed in front of the insulation, the latter is pressed against the wall, which puts it in direct contact with external humidity if the wall is not completely impermeable to possible infiltration. This flexible insulation is generally coated with a vapor barrier sheet preventing the migration of water vapor into mineral wool. The flexible insulating strips or plates are arranged adjacent to each other. This implementation requires the application of waterproof adhesive strips applied to the vapor barrier sheets, between the adjoining edges of the strips or sheets of flexible insulation, in order to prevent water vapor from penetrating between said adjoining edges. These waterproof adhesive strips are however generally omitted, which causes migration of water vapor into the flexible insulation, greatly reducing its insulating power. This can also end up settling in the lower part of the counter-partition.

This absence of waterproof adhesive strips also generates a total lack of airtightness in these thermal insulation systems, the main source of heat loss in the home.

Summary of the invention

The present invention aims to overcome the aforementioned drawbacks. To this end, the invention relates to a thermal insulation system for a counter-partition on a wall inside a

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BE2017 / 5736 building. The thermal insulation system comprises at least two vertical rails which each include a base and two wings extending at right angles to a rear side of the base, said rail thus having a U-section in a transverse cutting plane. The edges of the wings are curved opposite. The base is configured to fix a covering plate, for example a plasterboard commonly called "BAI3 plate", using self-tapping assembly screws.

The thermal insulation system includes at least two vertical uprights. Each upright comprises a rear face, a front face and two first interlocking elements respectively on its two lateral sides, said uprights being made of a material with low thermal conductivity, so as to avoid thermal bridges between the cold zone situated on the side from the rear panel and the hot zone located on the side of the front panel.

The thermal insulation system comprises assembly means configured to secure each rail with the front face of each respective upright. In one embodiment, these assembly means comprise at least two assembly parts fixed between each upright and each respective rail. Preferably, each assembly part comprises a base and two legs extending at right angles to a front side of the base, said assembly part comprising a U-shape. The end of each leg comprises means of engagement on the two curved edges of a rail to assemble said connecting piece on said rail. Such assembly parts are commonly called "jumpers". The bases of the assembly parts are fixed to the front faces of the uprights by means of fixing screws.

The thermal insulation system comprises at least one rigid thermally insulating panel arranged vertically and comprising a rear face, a front face and two lateral sides, said two lateral sides each comprising a second interlocking element complementary to said first interlocking element, so as to embed the second interlocking elements of the panel respectively in the first interlocking elements vis-à-vis on the two uprights. Of course, the spacing between two uprights corresponds with the width of a panel to allow proper fitting of the lateral sides of the panel in the lateral sides facing the two uprights. We can consider the installation of a single rigid insulating panel which extends over the entire height between two uprights. However, in a preferred variant, several panels are fitted one on top of the other, extending over the entire height between two uprights.

The thermal insulation system comprises at least one bottom rail made of a material with low thermal conductivity, so as to avoid thermal bridges between said aforementioned cold and hot zones. This low rail includes a base configured to be fixed to a building floor and two wings extending from an upper side of the base, said rail allowing the reception of the lower ends of the uprights and the lower ends of lower panels embedded in the amounts. Of course, the thickness of the panel and that of the uprights correspond with

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BE2017 / 5736 the spacing between the two wings to properly insert the uprights and the lower panels into the rails.

The thermal insulation system comprises at least one high beam made of a material with low thermal conductivity, so as to avoid thermal bridges between said aforementioned cold and hot zones. This high rail includes a base configured to be fixed to a building ceiling and two wings extending from a lower side of the base, said rail allowing the reception of the upper ends of the uprights and the upper ends of upper panels embedded in the amounts. Of course, the thickness of the panel and that of the uprights correspond with the spacing between the two wings to properly insert the uprights and the lower panels in the rails.

The aforementioned characteristics of the thermal insulation system according to the invention make it possible to avoid thermal bridges between the cold zone situated on the side of the building wall and the hot zone situated on the side of the cladding plate. The embedding of at least one rigid insulating panel between the two uprights considerably reduces the circulation of air between said elements. In addition, the rigidity of the insulating panel prevents it from settling over time.

According to the thermal insulation system that is the subject of the invention, the front face of the at least one panel is provided with a vapor barrier coating to prevent migration of the vapor towards the insulation and to retain all the properties of that -this.

According to the thermal insulation system which is the subject of the invention, each upright comprises an airtight and airtight adhesive strip bonded to its front face and the edges of which protrude on each side of said front face so as to glue these edges to the front faces of the panels embedded respectively in the lateral sides of the upright. The presence of this waterproof adhesive strip on the upright guarantees that it is in place during installation, the installer naturally applying said waterproof adhesive strip to the lateral edge of the panel when said panel is embedded in the lateral side of said upright. This waterproof adhesive tape completely prevents the circulation of air and steam between the panel and the upright.

In a preferred embodiment of the thermal insulation system according to the invention, the uprights each have an I-shaped section. In addition, the lateral sides of the panel each have a shoulder configured to be embedded on a grooved side of the shape in I.

According to the thermal insulation system object of the invention, each upright comprises a hollow body. Preferably, the body comprises a plurality of chambers extending longitudinally on the upright. Such a hollow body advantageously makes it possible to further reduce the heat exchange between the cold zone and the hot zone, through the upright. In a variant, polyurethane foam is injected into the hollow body for reinforced insulation.

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In a preferred embodiment of the thermal insulation system, each upright is designed in polyvinyl chloride (PVC) material. Other materials having a low thermal conductivity remain possible, within the scope of the invention.

In a preferred embodiment of the thermal insulation system, each panel is made up of a polyisocyanurate (PIR) or polyurethane (PUR) foam.

According to the thermal insulation system which is the subject of the invention, the bottom rail includes a waterproof adhesive glued (adhesive strip) on its front face and the upper and lower edges of which protrude from its front wing in order to be glued respectively on the lower ends of the lower panels and on the floor.

According to the thermal insulation system which is the subject of the invention, the top rail comprises a waterproof adhesive bonded to its front face and the upper and lower edges of which protrude from its front wing in order to be bonded respectively to the ceiling and to the upper ends of the upper panels.

In a preferred embodiment of the thermal insulation system, the bottom and top rails are made of a polyvinyl chloride (PVC) material. Other materials having a low thermal conductivity remain possible, in the context of the invention.

According to the thermal insulation system which is the subject of the invention, the rails and the assembly parts are dimensioned to maintain a spacing between the front face of a covering plate and the front face of a panel of between 40 mm and 60 mm, preferably 50 mm.

The invention also relates to a counter-partition for insulating a wall from the inside of a building, the counter-partition comprising a thermal insulation system having the above-mentioned characteristics and at least one covering plate, said plate being screwed onto the bases of the rails.

In one implementation of this counter-partition, the top and bottom rails are fixed to the ceiling and to the floor so as to maintain a spacing of at least 10 mm between the wall and the rear face of the panels. Such a spacing avoids contact of the insulating panels with the wall, which makes it possible to remove the vertical defects of the existing walls.

Brief description of the figures

The characteristics and advantages of the invention will appear on reading the following description of an embodiment based on figures, among which:

FIG. 1 illustrates a sectional view from above of a counter-partition implemented by means of a thermal insulation system according to the invention,

FIG. 2 illustrates a side sectional view of the upper part of the counter-partition;

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FIG. 3 illustrates a side sectional view of the lower part of the counter-partition;

Figure 4 illustrates a side sectional view of the assembly between two superimposed thermal insulation panels;

Figure 5 is a view similar to Figure 1, with a variant design of the uprights.

detailed description

In FIG. 1, the counter-partition 1 allows the insulation of a wall 2 by the interior of a building 3.

The counter-partition 1 comprises a thermal insulation system 4 which allows the support of covering plates 5 generally made up of plasterboards of the "BAI3" type, hydro-fugged plates or even fire-retardant plates.

The thermal insulation system 4 makes it possible to separate a cold zone 6 situated on the side of the wall 2 of the building 3 and a hot zone 7 situated on the side of the covering plates 5.

The thermal insulation system 4 comprises uprights 8 arranged vertically and spaced apart preferably with a width L1 between the axes XI, X2 which is equal to plus or minus sixty centimeters (L1 = 60 cm). The number of uprights 8 will therefore depend on the width of the wall 2 against 15 partitioning. These uprights 8 preferably include an I-shape in a transverse cutting plane, as illustrated in FIG. 1. In FIG. 1, each upright 8 consists of a hollow body separated into several chambers 9a-9k which s 'extend over the entire length of said upright 8.

These uprights are made of a material having a low thermal conductivity, preferably polyvinyl chloride (PVC). One can also consider injecting polyurethane foam in whole or in part into the hollow body, without necessarily separating the hollow body into several chambers 9a-9k. For example, polyurethane foam could be injected only into the central part of the I-shaped hollow body corresponding to the chambers 9d-9h in FIG. 1.

As illustrated in Figures 2 and 3, the thermal insulation system 4 includes low beams 10 and high beams 11, their lengths depending on the width of the wall 2 to be partitioned. The bottom rails 10 comprise a U-shape in a transverse cutting plane illustrated in FIG. 3, with a base 10a which is fixed to the ground 12 by means of screws or impact nails (not illustrated), or even by any other means of fixing within the reach of the skilled person. The base rail 10 also includes two wings 10b, 10c. Likewise, the top rails 11 comprise an inverted U shape in a transverse cutting plane illustrated in FIG. 2, with a base 11a which is fixed to the ceiling 13 by means of screws or impact nails (not shown), see thanks any other means of attachment within the reach of the skilled person. The top rail 11 also includes two wings 11b, 11c. When the low beams 10 and high are fixed respectively to the ground 12 and to the ceiling 13, these are spaced from the wall 2, the spacing generated making it possible to avoid contact with the latter in order to remove any defects of balance of said wall 2. However, provision could be made to press the low beams 10 and high 12 against the wall 2 when the latter has no flatness defect. Low beams 10 and high beams 12

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BE2017 / 5736 are made of a material having a low thermal conductivity, preferably polyvinyl chloride (PVC).

The thermal insulation system 4 comprises thermally insulating panels 14, these panels 14 being rigid and extending vertically between the uprights 8, as illustrated in FIG. 1.

Preferably, these panels 14 are made of a polyisocyanurate (PIR) or polyurethane (PUR) foam. Preferably several panels 14 are superimposed on each other and positioned between two uprights 8. For this, the lower part 14a of a panel 14 comprises a groove 15 and the upper part 14b of a panel 14 comprises a shoulder 16 configured to be engaged in the antler 15 of a second panel disposed above. One could also reverse the antlers 15 and the shoulder 16 on the lower 14a and upper 14b portions of the panels 14, also achieving recess between said overlapping panels 14. The panels 14 include two lateral sides 14c, 14d which each include a shoulder 17, 18 constituting protruding embedding elements. The I-shape of the upright 8 makes it possible to constitute thereon two grooves 19, 20 constituting hollow embedding elements, the grooves 19, 20 on the uprights 8 making it possible to receive the shoulders 17, 18 on the panels 14. The width L2 between the two shoulders 17, 18 on a panel 14 is identical to that separating the grooves 19, 20 vis-à-vis two uprights 8 between which is embedded said panel 14. The thickness of the panel 14 corresponds to the depth separating the face rear 21 and the front face 22 of the upright 8.

The panels 14 include a rear face 23 which is disposed on the side of the wall 2, in the same plane as the rear face 21 of the uprights 8, with a spacing El relative to said wall 2, this spacing El being defined by the fixing position low beams 10 and high beams 11 respectively on the floor 12 and the ceiling 13. Preferably this spacing El will not be less than 10 mm, although this remains possible if the wall 2 has no plumb defect, or even very little . The uprights 8 are fixed to the wall 2 by means of anchoring screws (not shown) or any other means of fixing within the reach of those skilled in the art, maintaining this spacing El between the rear faces 21 of said uprights 8 and said wall 2. These anchoring screws (not shown) pass through the vertical uprights and are screwed directly into the masonry to provide high rigidity to the thermal insulation system 4.

The panels 14 include a front face 24 which is coated with a vapor barrier (not shown) to prevent the penetration of steam into these panels 14. The front face 22 of the upright 8 comprises a waterproof adhesive strip 25 bonded to said face front 22 with its two lateral edges 25a, 25b which protrude on each side of this front face 22, which allows said lateral edges 25a, 25b to be bonded to the vapor barrier at the lateral edges 24a, 24b of the front face 24 of the panel 14 previously embedded between the two uprights 8.

The thermal insulation system 4 also comprises assembly parts 26 which are fixed to the front face 22 of the uprights 8. At least two assembly parts 26 are fixed to

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BE2017 / 5736 each upright 8. These connecting pieces 26 have a U shape with a base 27 and two legs 28, 29, each leg 28, 29 comprising two notches 30a, 30b. These assembly pieces 26 are of the "rider" type, known to those skilled in the art. The bases 27 of the assembly pieces 26 are fixed to the front faces 22 of the uprights 8 by means of assembly of the self-piercing fixing screw type (not shown).

The thermal insulation system 4 also includes rails 31 which each include a base 31a and two wings 31b, 31c, the edges 32, 33 of which are bent opposite and receive the notches 30a, 30b on each tab 28, 29 of the connecting piece 26, so as to maintain the rails 31 vertically with respect to the uprights 8, in the same alignment. These rails 31 are of the "F530 fur" type known to those skilled in the art. The cover plate 5 is fixed to the bases 31a of the rails 31 by means of self-drilling screws. The dimensions of the assembly pieces 26 and of the rails 31 make it possible to maintain a spacing E2 between the front face 24 of the panel 14 and the front face 34 of the covering plate 5. This spacing E2 is between forty millimeters and sixty millimeters ( 40mm <E2 <60mm), preferably of the order of fifty millimeters (E2 = 50mm).

As illustrated in FIG. 2, the thermal insulation system 4 also comprises at the upper level a waterproof adhesive strip 35 which is glued to the front wing 11c of the top rail 11, this waterproof adhesive strip 35 comprising two edges 35a, 35b which protrude on each side of the front wing 11c so as to be bonded respectively to the vapor barrier (not shown) at the upper edge 36 of the upper panel 14 and to the ceiling 13.

Likewise, as illustrated in FIG. 3, the thermal insulation system 4 also comprises at the lower level a waterproof adhesive strip 37 which is glued to the front wing 10c of the bottom rail 10, this waterproof adhesive strip 37 comprising two edges 37a, 37b which protrude on each side of the front wing 10c so as to be glued respectively to the vapor barrier (not illustrated) at the lower edge 38 of the lower panel 14 and to the ground 12.

As illustrated in Figures 2 and 3, the upper end 39 and the lower end 40 of the panels 14 are fitted respectively in the top rails 11 and bottom 10. The same is true for the top end and the lower end of each upright 8 (ends not shown).

This reinforces the rigidity of the thermal insulation system 4 and the thermal insulation as such.

The foregoing detailed description of a particular embodiment of the invention is in no way limiting. On the contrary, it aims to remove any possible inaccuracy as to its scope. Thus, numerous variants could be envisaged within the framework of the invention, in particular as regards the design of the uprights 8 and of the panels 14 fitting into these uprights 8.

It is also possible to envisage variants of materials having characteristics comparable to those sought for the uprights 8, the low beams 10 and high 11, and the rigid panels 14 and

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BE2017 / 5736 thermally insulating. We can also replace the assembly parts 26 used for fixing between the rails 31 and the uprights 8, with wooden battens.

By way of example of an alternative embodiment, all the characteristics of the counter-partition 1 illustrated in FIG. 1 on are found on the counter-partition 1 illustrated in FIG. 5, only the design of the upright 8 and that of the panel 14 change. upright 8 is composed of three parts 8a, 8b, 8c fixed together and forming an I, said parts 8a, 8b, 8c being made of materials with low thermal conductivity. The first part 8a preferably consists of a dish, preferably made of polyvinyl chloride (PVC). The second part 8b is preferably made of a piece of wood, of the wooden batten type. The third part 8c preferably consists of a hollow body separated into several chambers 9i, 9j, 9k, preferably made of polyvinyl chloride (PVC). One can also consider injecting polyurethane foam into the hollow body. This design of the upright 8 makes it possible to retain the presence of the branches 19, 20, but slightly modifies the "I" shape of the upright 8 due to the difference in thickness of the dish and of the hollow body, which consequently modifies the shape shoulders 17, 18 on the panel 14.

One can also consider adding wooden reinforcements (not shown) with a thickness equal to the distance between the front face 22 of the uprights 8 and the rear face 41 of the covering plate 5, making it possible to fix heavy elements on the partition (radiators, kitchen furniture ...).

The aforementioned design of the thermal insulation system 4 makes it possible to obtain optimal thermal insulation and airtightness thanks to the properties of the materials used and to the presence of the waterproof adhesive strips 25, 35, 37 on the uprights 8 and the smooth 10, 11. The rigidity of the panels 14 also ensure a longevity of the counter-partition 1, these panels 14 not sagging over time under the effect of the weight.

The invention can be implemented in new constructions or renovations of existing buildings.

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Claims (17)

1. A thermal insulation system (4) for a partition wall for insulating a wall (2) by the interior of a building, comprising: 5 - at least two vertical rails (31) each comprising a base (31a) configured to allow the fixing of a covering plate, characterized in that said system comprises: at least two vertical uprights (8) each comprising a rear face (21), a front face (22) and two first interlocking elements (19, 20) respectively on its two sides 10 lateral, said uprights being made of a material with low thermal conductivity, assembly means configured to secure each rail (31) with the front face (22) of each respective upright (8), at least one panel (14 ) vertical thermally rigid insulator and comprising a rear face (23), a front face (24) and two lateral sides, said two lateral sides each comprising 15 a second interlocking element (17, 18) complementary to said first interlocking element (19,20), so as to embed the second panel interlocking elements respectively in the first facing interlocking elements screws on the two uprights, at least one bottom rail (10) comprising a base (10a) configured to be fixed to a floor of the building and two wings (10b, 10c) extending from an upper side of the base, said smooth 20 allowing the reception of the lower ends of the uprights and the lower ends (40) of lower panels recessed in the uprights, at least one high beam (11) comprising a base (lia) configured to be fixed to a building ceiling and two wings (11b, 11c) extending from a lower side of the base, said beam allowing the reception of the upper ends of the uprights and of the ends 25 upper (39) upper panels recessed in the uprights. 2. A thermal insulation system (4) according to claim 1, in which the assembly means comprise at least two assembly parts (26) fixed between each upright (8) and each respective rail (31). 3. Thermal insulation system (4) according to claim 1, wherein the front face (24) of At least one panel (14) is provided with a vapor barrier coating. 4. Thermal insulation system (4) according to one of the preceding claims, in which each upright (8) comprises a waterproof adhesive strip (25) bonded to its front face (22) and whose edges (25a, 25b) protrude from each side of said front face (22) so as to be glued to the front faces (24) of the panels (14) embedded respectively in the sides 35 sides of an upright. 2017/5736 BE2017 / 5736 5. Thermal insulation system (4) according to one of the preceding claims, in which the uprights (8) each have an I-shaped section, the lateral sides of the panel (14) having a shoulder (17, 18) configured to fit into a grooved side (19, 20) of the I-shape. 6. Thermal insulation system (4) according to one of the preceding claims, in which each upright (8) comprises a hollow body. 7. The thermal insulation system (4) according to claim 6, wherein the hollow body comprises a plurality of chambers (9a-9k) extending longitudinally. 8. A thermal insulation system (4) according to claim 6, in which polyurethane foam is injected into the hollow body for reinforced insulation. 9. Thermal insulation system (4) according to one of the preceding claims, in which each upright (8) is made of polyvinyl chloride (PVC) material. 10. Thermal insulation system according to one of claims 1 to 8, in which each upright (8) consists of three parts (8a, 8b, 8c) fixed together and forming an I. 11. Thermal insulation system (4) according to one of the preceding claims, in which each panel (14) consists of a polyisocyanurate (PIR) or polyurethane (PUR) foam. 12. A thermal insulation system (4) according to one of the preceding claims, in which the bottom rail (10) comprises a waterproof adhesive strip (37) glued to its front face and whose upper (37a) and lower edges ( 37b) protrude from its front wing (10c) to be stuck respectively on the lower ends (38) of the lower panels (14) and on the ground (12). 13. Thermal insulation system (4) according to one of the preceding claims, in which the top rail (11) comprises a waterproof adhesive strip (35) bonded to its front face and whose upper (35b) and lower edges ( 35a) protrude from its front wing (11c) to be glued respectively to the ceiling (13) and to the upper ends (36) of the upper panels (14). 14. A thermal insulation system (4) according to one of the preceding claims, in which the low (10) and high (11) beams are made of a material with low thermal conductivity, in particular a polyvinyl chloride material (PVC). . 15. Thermal insulation system (4) according to one of the preceding claims, in which the rails (31) and the assembly parts (26) are dimensioned to maintain a spacing between the front face (34) of a cover plate (5) and the front face (24) of a panel (14) between 40 mm and 60 mm, preferably 50 mm. 16. Counter-partition (1) for insulating a wall (2) from the inside of a building, comprising a thermal insulation system (4) according to one of the preceding claims and at least one plate covering (5), said plate being screwed onto the bases (31a) of the rails (31). 2017/5736 BE2017 / 5736 17. Counter-partition (1) according to claim 16, in which the top (11) and bottom (10) beams are fixed to the ceiling (13) and to the floor (12) so as to maintain a spacing of at least 10 mm between the wall (2) and the rear face (23) of the panels (14). BE2017 / 5736 BE2017 / 5736