FR3065236A1 - ROOFING ROOF PANEL - Google Patents

Abstract

The present invention relates to a self-supporting composite panel (10) arranged to form the roof (4) of a dwelling house (1), characterized in that it comprises at least one element (11, 11 ') in global form an elongated parallelepiped comprising an inner face (12), an outer face (13) and lateral (14) and longitudinal edges (15, 15 '; 16) interconnecting said inner and outer faces (12; 13), said edge longitudinal section (15, 15 ') having a first longitudinal cut (26, 26) in the shape of a J arranged on the side of said inner face (12), a second longitudinal cut (27, 27') in the shape of a J arranged on the side of the outer face (13), and an intermediate intermediate cut (28) joining the first and second longitudinal cutouts (26, 26 '; 27, 27') and having an inclined N-shaped cross-section, said longitudinal edge (16). having a cross-section of complementary shape to that of t longitudinal edge (15,15 ').

Description

Technical area

The present invention relates to the general field of building, and more particularly to a self-supporting composite roofing panel.

Prior art

In the field of roofing of houses or buildings, it is known to use self-supporting composite panels capable of receiving or not a conventional roofing of the tile type for example.

These known composite panels, which are increasingly used in single-family homes with creeping ceilings or convertible attics, conventionally fulfill the following functions:

- lift: the composite panel partly provides lift between the structural elements,

- thermal insulation: the composite panel includes thermal insulation,

- interior facing: the composite panel is ready to receive interior finishes,

- against bedding: the composite panel must be able to receive the battens (or slats) to meet all types of coverings in small elements such as, for example, tiles,

- waterproofing: the composite panel must perform the functions of rain and snow shields.

If each of these known panels is waterproof, the assembly of one of these panels with an adjacent similar panel is not always an effective seal. Indeed, the sealing between these known panels is carried out, in a conventional manner, during the mounting of the latter on a frame by the establishment between said adjacent panels of a bead of expansive foam.

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- 2 However, this technique has the disadvantages of being long to implement and having an efficiency which depends mainly on the professionalism of the team of fitters. Indeed, if the assemblers do not correctly make the cords of expansive foam, the water and especially air tightness between the panels will not be guaranteed, which is detrimental in modern low-rise residential houses energy consumption, called BBC, built in compliance with the RT2012 Thermal Regulations implemented following the Grenelle de l'Environnement.

In addition, the known panels, which are designed to be fixed on and between the wooden frame elements, do not necessarily allow to produce cantilevered parts along the edges of the roofs.

Finally, it is clear that the current treatment of junctions between adjacent panels with an expansive foam bead does not guarantee continuous thermal insulation over the entire roof.

Statement of the invention

The purpose of the present invention is therefore to overcome the drawbacks mentioned above and to present an alternative to existing roofing panels by proposing a self-supporting composite panel which is easy and quick to implement with little labor, making it possible to carry out out of the water of a building in a single operation, and guaranteeing a perfect seal against water and air.

In this regard, the present invention relates to a self-supporting composite panel arranged to be fixed at least on the sandpit and the ridge of the frame of a dwelling house to form its roof, remarkable in that it comprises at least an element in the overall shape of an elongated parallelepiped comprising an inner face, an outer face and lateral and longitudinal edges

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- 3 interconnecting said inner and outer faces, said longitudinal edge comprising a first longitudinal J-shaped cutout arranged on the side of said inner face, a second longitudinal J-shaped cutout arranged on the side of the outer face, and a cutout longitudinal intermediate joining the first and second longitudinal cuts and having a cross section in the form of an inclined N, said longitudinal edge having a cross section of shape complementary to that of said longitudinal edge.

Each of the first and second longitudinal cutouts of the longitudinal edge preferably receives a seal.

According to a preferred embodiment, the intermediate cut includes:

a first inclined face coming from the longitudinal edge of the first longitudinal cut located on the side of the external face of the element and extending in the direction of the latter and of the interior of said element,

- a second inclined face coming from the free longitudinal edge of the first inclined face and extending in the direction

of the face interior of the element and of Inside of this last, and - a third inclined face from edge

free longitudinal of the second inclined face and extending in the direction of the external face of the element and the interior of the latter, until reaching the longitudinal edge of the second longitudinal cut located on the side of the internal face of the item.

Advantageously, each element is multilayer and advantageously comprises, from its inner face to its outer face, at least the following layers:

- an interior facing layer,

- a first layer of reinforcement,

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- 4 - an insulating layer,

- a second layer of reinforcement,

- an outer facing layer,

- a layer of sound underlay,

- a screen layer under the roof,

- a layer of longitudinal slats, and

- a layer of battens and / or panels.

The first longitudinal cut is preferably arranged in the inner facing layer and the second longitudinal cut is arranged up to the outer facing layer.

According to a preferred embodiment, the first and second inclined faces of the longitudinal edge of each element are determined by a reinforcing strip fixed on the first reinforcing layer and against the insulating layer.

Advantageously, the under-roof screen layer of an element extends beyond the latter to partially cover the adjacent element or elements.

The interior facing layer is preferably provided with a groove arranged transversely in the vicinity of one of its longitudinal ends and arranged to cooperate with a cleat disposed at least partially projecting on the top of the frame sand pit to maintain the self-supporting composite panel in position on the latter.

According to an alternative embodiment, the element comprises at least one longitudinal reinforcement bar integral with the first reinforcement layer and disposed in the insulating layer, said longitudinal reinforcement bar extending between the lateral edges of said element parallel to its longitudinal edges .

The invention also relates to a method of mounting self-supporting composite panels according to the invention at least on the sandpit and the ridge of the frame of a dwelling house to form its roof, remarkable in that

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- 5 one of the longitudinal edges of an element of each self-supporting composite panel cooperates with the longitudinal edge of cross section of complementary shape of an element of the adjacent self-supporting composite panel, said self-supporting composite panels being arranged for the longitudinal edges to be perpendicular or parallel to the longitudinal axis of the ridge, the joining of self-supporting composite panels adjacent to each other and their fixing on at least on the plate and the ridge of the frame being produced by fixing members.

Brief description of the figures

Other advantages and characteristics will emerge more clearly from the description which follows, of a particular example of embodiment, given by way of nonlimiting example, of a self-supporting composite roofing panel in accordance with the invention, with reference to the figures. annexed on which:

- Figure 1 is a perspective view of a dwelling house partially covered with self-supporting composite panels according to the invention;

- Figure 2 is a perspective view of a self-supporting composite panel according to the invention;

- Figure 3 is a cross-sectional view of an element of the self-supporting composite panel of Figure 2 along the axis III-III ';

- Figure 4 is a cross-sectional view of a junction of two elements of an adjacent self-supporting composite panel along the axis III-III 'of Figure 2 or elements of two adjacent self-supporting composite panels;

- Figure 5 is a longitudinal sectional view of a self-supporting composite panel of Figure 1 mounted on a frame along the axis V-V ';

- Figure 6 is a cross-sectional view

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- 6 similar to Figure 3 of an alternative embodiment of an element of the self-supporting composite panel.

Best way to realize the technical invention

Referring to Figures 1 and 5, there is shown a dwelling house 1 comprising walls 2 of facade on which rests a frame 3 partially covered by self-supporting composite panels 10 according to the invention forming the roof 4 of said house d dwelling 1, said frame 3 comprising a plurality of elements conventionally made of wood such as, for example, sand plates 5, intermediate purlins 6 or even ridge plates 7.

The self-supporting composite panels 10 according to the invention can also be used to cover a building of any other type such as, for example, an office building or an industrial building, without departing from the scope of the present invention.

With reference to FIGS. 2 to 5, each self-supporting composite panel 10 according to the invention comprises at least one element 11 in the overall shape of an elongated parallelepiped comprising an inner face 12 and an outer face 13 which may or may not be parallel, lateral edges 14 and longitudinal edges 15,16 connecting together said inner and outer faces 12,13.

Said side edges 14 are preferably generally planar (see FIG. 5), but they may however have a more or less curved cross section to allow, for example, the installation of roofing accessories, without departing from the scope of the present invention. . The term “interior” and “exterior” here means an element or a part of a constituent element of the self-supporting composite panel 10 located reciprocally on the interior and exterior sides of the dwelling house 1, when the composite panel freestanding 10 is placed on the frame 3

SIMON1-FR-1TEXTE DEPOSE_RG / AG of the said dwelling house 1.

Furthermore, each element is composed of a plurality of layers assembled together by any suitable technique such as, for example, bonding, heat-bonding or even screwing.

inner face 12 at its element face 11 of the self-supporting composite panel 10 is multilayer and advantageously comprises at least the following layers:

Thus, from its exterior 13, each

- a layer of facing interior 17, - a first layer of reinforcement 18, - a layer insulating 19, - a second layer of reinforcement 20, - a layer of facing outside 21, - a layer of phonic undercover 22, - a layer under-roof screen 23, - a layer of longitudinal slats 24, and - a layer of 25 battens and / or panels allowing

installation of roofing elements of the tile type, for example, or to create reservations for the installation of roof windows or even chimney flues.

The inner face 12 is determined by the layer of the element 11 located the innermost, namely in the example described the interior facing layer 17.

In an analogous manner, the external face 13 is determined by the layer of the element 11 located the outermost, namely in the example described the layer of battens 25.

The interior facing layer 17 is the finished or semi-finished layer which is visible from the interior of the dwelling house 1 when the self-supporting composite panel 10 is placed on the frame 3 of said dwelling house 1. Said interior facing layer 17 can therefore consist of a plate of different thicknesses of different materials such as, for example, plaster,

SIMON1-FR-1TEXTE DEPOSE_RG / AG metal, chipboard, or wood but of different species. For mainly economic reasons, said interior facing layer 17 advantageously consists of a 20 mm thick spruce plate which can be rough, covered with paint or varnish, or even structured with decorative or phonic elements.

The first reinforcing layer 18 is a layer which contributes to imparting to each element 11 of the self-supporting composite panel 10 stability and longitudinal and transverse rigidity. This first reinforcing layer 18 can therefore consist of a plate of different thicknesses in different materials such as, for example, solid wood of different species, agglomerated wood or even metal. For reasons of mechanical strength, said reinforcing layer 18 advantageously consists of a raw plywood plate 5 mm thick.

For obvious reasons of economy and rationalization of manufacturing, the second reinforcing layer 20 is preferably identical to the first reinforcing layer 18.

However, for reasons of fire resistance of each element 11 of the self-supporting composite panel 10, the first and second reinforcing layers 18, 20 may not be identical, without departing from the scope of the present invention. The insulating layer 19 is the layer which largely makes it possible to obtain for each element 11 of the self-supporting composite panel 10 the desired level of thermal insulation. This insulating layer 19 preferably consists of a sheet of expanded polystyrene (EPS). The expanded polystyrene is advantageously of the graphite type, of density 25 kg / m3 minimum and flame retardant, that is to say self-extinguishing (not propagating fire). In addition, expanded polystyrene

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- 9 is particularly interesting because it contains 96 to 98% of static dry air and only 2 to 4% of synthetic material and it is free of chlorofluorocarbons (CFC) responsible in part for the destruction of the ozone layer. In addition, expanded polystyrene does not constitute a breeding ground for pests, plants, or microorganisms, it is rot-proof, perennial and completely recyclable.

The thickness of the insulating layer 19 will be adapted to obtain a thermal resistance R corresponding to said thermal insulation. Thus, the following table gives the resistance value R in m2.K / W (Square meter-Kelvin per Watt) as a function of the thickness of the EPS plate:

PSE plate thickness Thermal resistance R (mm) (m2.K / W) 181 7, 14 215 8.12 270 9.89 280 10.21

The insulating layer 19 may also be composed of several plates assembled together one above the other, the latter possibly being of different materials and / or thicknesses. This particular configuration makes it possible, for example, to obtain, for a given thickness, a higher thermal resistance R than that given in the preceding table.

For obvious reasons of economy and rationalization of manufacturing, the outer facing layer 21 is preferably identical to the inner facing layer 17. However, this outer facing layer 21 is obviously raw since not visible.

The sound underlay layer 22 is used to achieve sound insulation between the exterior

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- ίο and the interior of the dwelling house 1. For ecological reasons and mechanical properties, said sound underlay layer 22 preferably consists of a 35 mm thick wooden fiber board.

The under-roof screen layer 23 is impermeable to water in order to prevent the ingress of water inside the dwelling house 1. According to an advantageous embodiment, the under-roof screen layer 23 is consisting of a flexible canvas or the like. Said under-roof screen layer 23 extends beyond the element 11 of the self-supporting composite panel 10 to allow a partial overlap of the adjacent element or elements 11 to ensure the continuity of the seal (cf. FIGS. 4 and 5 ).

The layer of longitudinal slats 24 is constituted by a plurality of wooden slats 24, preferably three, spaced parallel to each other and extending along the length of the associated element 11. This layer of longitudinal slats 24 allows the possible placement of the layer of battens 25. These longitudinal slats 24 also participate, by acting as longitudinal mechanical reinforcement, in the fixing of the elements 11 and / or the self-supporting composite panels 10 between them and / or on the frame 3 of said dwelling house 1.

The layer of battens 25 consists of a plurality of wooden slats 25 spaced parallel to each other and extending perpendicular to said longitudinal slats 24 and allowing the placement of roofing elements of the tile type, their spacing and number depending on the dimensions of said cover element retained by the owner of the dwelling house 1.

In addition, said longitudinal edges 15, 16 of each element 11 are of specific shape so as to allow both an easy junction with an adjacent element and an air tightness ensured between two adjacent elements 11,

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- ii whatever the team of fitters employed to install the self-supporting composite panel 10 on the dwelling house 1

To do this, the longitudinal edges 15, 16 of each element 11 have cross sections of complementary shape, that is to say that, with reference to FIG. 4, the longitudinal edge 16 of the element 11 cooperates with the longitudinal edge 15 'of an adjacent element 11' engaging at least in part in the latter (see FIG. 4) so that their internal 12,12 'and external 13,13' faces are coplanar when the two elements 11, 11 ′ are assembled.

Thus, with reference to FIG. 3, the longitudinal edge 15 comprises a first longitudinal cutout 26 in the form of J arranged on the side of the internal face 12 of the element 11, preferably in the internal facing layer 17, a second cutout longitudinal J-shaped 27 arranged on the side of the outer face 13 of the element 11, preferably up to the outer facing layer 21, and an intermediate cut 28 generally inclined joining the first and second longitudinal cut 26,27.

Said intermediate cutout 28 has an inclined N-shaped cross section and therefore comprises a first inclined face 29, a second inclined face 30 and a third inclined face 31.

Said first inclined face 29 comes from the longitudinal edge of the first longitudinal cut 26 situated on the side of the external face 13 of the element 11 and extends in the direction of the latter and from the inside of said element 11.

Said second inclined face 30 comes from the free longitudinal edge of the first inclined face 29 and extends in the direction of the internal face 12 of the element 11 and

SIMON1-FR-1TEXTE DEPOSE_RG / AG inside the latter.

Finally, said third inclined face 31 comes from the free longitudinal edge of the second inclined face 30 and extends in the direction of the external face 13 of the element 11 and of the interior of the latter, until it reaches the edge. longitudinal of the second longitudinal cut 27 located on the side of the inner face 12 of the element il.

Similarly, the longitudinal edge 16, which has a shape complementary to that of the longitudinal edge 15, therefore comprises a first longitudinal cut 32 in the form of J rotated 90 ° clockwise and arranged on the side of the inner face 12 of the element il, preferably in the inner facing layer 17, a second longitudinal cutout 33 in the form of a J pivoted 90 ° clockwise and arranged on the side of the external face 13 of the element il, preferably up to 'to the outer facing layer 21, and an intermediate cut 34 generally inclined joining the first and second longitudinal cuts 32,33.

Said intermediate cutout 34 also has an inclined N-shaped cross section and therefore comprises a first inclined face 35, a second inclined face 36 and a third inclined face 37.

Said first inclined face 35 comes from the longitudinal edge of the first longitudinal cut 32 located on the side of the external face 13 of the element 11 and extends in the direction of the latter and from the outside of said element 11.

Said second inclined face 36 comes from the free longitudinal edge of the first inclined face 35 and extends in the direction of the internal face 13 of the element 11 and from the outside of the latter.

Finally, said third inclined face 37 comes from the free longitudinal edge of the second inclined face 36 and

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- 13 extends towards the outer face 13 of the element 11 and the inside of the latter, until it reaches the longitudinal edge of the second longitudinal cut 33 located on the side of the inner face 12 of the item 11.

With reference to FIG. 4, the longitudinal junction between two adjacent elements 11, 11 ′ is obtained by bringing the latter closer by pressing the first and third inclined faces 35, 37 of the longitudinal edge 16 of the element 11 against the first and third inclined faces 29 ', 31' of the longitudinal edge 15 'of the element 11', until the second inclined face 36 of said longitudinal edge 16 comes into contact with the second inclined face 30 'of said longitudinal edge 15'.

It will be understood that the inclined N shape of the cross section of the respective intermediate cuts 28,34 of the longitudinal edges 15,16 is advantageous because, once the adjacent elements 11,11 ′ assembled, this guarantees the tightness of the longitudinal junction of said elements 11, 11 ′ by constituting a baffle limiting or even preventing any passage of water and / or air.

To increase the air tightness of this junction, seals 38 are preferably placed in the first and second longitudinal cuts 26 ', 27' of the longitudinal edge 15 'of the element 11' and compressed respectively by the first and second longitudinal cuts 32, 33 of the longitudinal edge 16 of the element 11.

To secure the two elements 11, 11 'adjacent to each other, a fixing member, not shown, of the screw type for example, is put in place at the junction of the longitudinal edges 15', 16 along the axis line AA 'of FIG. 4 so as to pass at least partially through said two elements 11, 11', said fixing member also making it possible to compress the seals 38.

However, to guarantee the solidity of this

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- 14 - solidarity, the first 29.29 'and second faces inclined 30.30 ' of 15.15 'longitudinal edge of each element 11.11 ' are determined by a slat of reinforcement 39.39 ' fixed on the first reinforcement layer 18 and

against the insulating layer 19. Said reinforcing slat 39, 39 ′ is advantageously made of solid wood to allow a good grip of said fixing member.

Each element 11 is approximately 120 cm wide and its length corresponds to the length of the roof pan 4.

Each self-supporting composite panel 10 can, as required, include one or two elements 11. In addition, it is clear that element 11 of the self-supporting composite panel 10 disposed at the edge of the roof 4 of the dwelling house 1 may have an edge longitudinal 15 or 16 substantially planar to allow the establishment of edge plank, not shown, along the edges of the roof 4, without departing from the scope of the present invention.

Finally, with reference to FIG. 5, each self-supporting composite panel 10 is fixed at least to the plate 5 and the ridge 7 of the frame 3 by a fixing member, not shown, of the screw type for example, installed at least at the junction of the longitudinal edges of adjacent self-supporting composite panels 10, along at least each center line of FIG. 5 so as to pass through said two elements 11, 11 ′ at the level of the rising slats 24 and at least partly the sand pit 5 or associated ridge 7.

To facilitate the positioning of each self-supporting composite panel 10 on the frame 3, the interior facing layer 17 is provided with a groove 40 arranged transversely in the vicinity of one of its longitudinal ends and arranged to cooperate with a cleat 8 arranged at least in part projecting on the top of the plate 5 associated with the frame 3 to maintain the

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- 15 self-supporting composite panel 10 in position on the latter, before the fixing members are put in place.

To guarantee a perfect seal, seals 9 are put in place on the structural elements 3 before the installation of the self-supporting composite panels 10, the under-roof screen layer 23 of an element 11 partially covers the or the adjacent elements 11, and the space between them at the level of the ridge is filled with expansive foam 41.

With such a configuration, it is clear that the self-supporting composite panels 10 allow the installation of a roof 4 very quickly and the putting out of water of a dwelling house 1 in a single operation while guaranteeing a perfect seal to water and air.

Finally, it is well understood that the design of the self-supporting composite panels 10 makes it possible to place the latter on the frame 3 not only so as to have the longitudinal edges 15, 16 of their element 11 perpendicular to the longitudinal axis of the ridge 7, but also so as to have the longitudinal edges 15, 16 of their element 11 parallel to the longitudinal axis of the ridge 7. Description of other embodiments

According to an alternative embodiment shown in Figure 6, to increase the fire resistance of the self-supporting composite panel and more particularly to guarantee its rigidity as long as possible when a fire breaks out at the roof, each element 11,11 ' comprises at least one and preferably several longitudinal reinforcing bars 42 integral with the first reinforcing layer 18,18 'and arranged in the insulating layer 19,19', said longitudinal reinforcing bars 42 extending between the lateral edges of said element 11.11 'parallel to its longitudinal edges 15.15'; 16, 16 '.

With this variant, the rigidity of

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- 16 each element 11,11 'is guaranteed when the insulating layer 19,19' deteriorates following a significant rise in temperature generated by a fire at the level of the roof.

Possibility of industrial application

It will be understood that the self-supporting composite panel 10 according to the invention is preferably used to make the roof 4 of a dwelling house 1.

However, it is obvious that the self-supporting composite panel 10 can be adapted and used to cover other types of buildings.

Finally, it goes without saying that the examples of self-supporting composite panel in accordance with the invention which have just been described are only specific illustrations, in no way limiting the invention.

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Claims (10)

1 - Self-supporting composite panel (10) arranged to be fixed at least on the sandpit (5) and the ridge (7) of the frame (3) of a dwelling house (1) to form its roof (4), characterized in that it comprises at least one element (11,11 ') in the overall shape of an elongated parallelepiped comprising an inner face (12), an outer face (13) and lateral (14) and longitudinal (15,15 '; 16, 16') connecting together said inner and outer faces (12; 13), said longitudinal edge (15,15 ') comprising a first longitudinal cut (26,26) in the form of J arranged on the side of said face inner (12), a second longitudinal cut (27,27 ') in the form of J arranged on the side of the outer face (13), and an intermediate cut (28) longitudinal joining the first and second longitudinal cutouts (26,26' ; 27.27 ') and having an inclined N-shaped cross section, said longitudinal edge (16.16') aya nt a cross section of shape complementary to that of said longitudinal edge (15,15 '). 2 - Self-supporting composite panel (10) according to claim 1 characterized in that each of the first and second longitudinal cuts (26.26 '; 27.27') of the longitudinal edge (15.15 ') receives a seal ( 38). 3 - Self-supporting composite panel (10) according to any one of claims 1 or 2 characterized in that the intermediate cutout (28) comprises: - a first inclined face (29,29 ') coming from the longitudinal edge of the first longitudinal cut (26,26') situated on the side of the external face (13) of the element (11) and extending in the direction of the latter and from inside said element (11), - a second inclined face (30.30 ') from the edge SIMON1-FR-1TEXT DEPOSERG / AG - 18 free longitudinal of the first inclined face (29,29 ') and extending in the direction of the internal face (12) of the element (11) and the interior of the latter, and - A third inclined face (31,31 ') coming from the free longitudinal edge of the second inclined face (30,30') and extending in the direction of the external face (13) of the element (11) and the 'interior of the latter, until reaching the longitudinal edge of the second longitudinal cut (27,27') located on the side of the inner face (12) of the element (11). 4 - Self-supporting composite panel (10) according to any one of claims 1 to 3, characterized in that the element (11,11 ') is multilayer and comprises, from its inner face (12) to its outer face (13 ), at least the following layers: - an interior facing layer (17), - a first reinforcing layer (18), - an insulating layer (19), - a second reinforcing layer (20), - an outer facing layer (21), - a layer of sound underlay (22), - an under-roof screen layer (23), a layer of longitudinal slats (24), and - a layer of battens (25) and / or panels. 5 - self-supporting composite panel (10) according to claim 4, characterized in that the first longitudinal cut (26,26) is arranged in the inner facing layer (17) and in that the second longitudinal cut (27,27 ' ) is arranged up to the outer facing layer (21). SIMON1-FR-1 TEXT DEPOSE_RQ / AQ - 19 6 - Self-supporting composite panel (10) according to claims 3, 4 and 5, characterized in that the first and second inclined faces (29,29 '; 30,30') of the longitudinal edge (15,15 ') of each element (11,11 ') are determined by a reinforcing strip (39,39') fixed on the first reinforcing layer (18) and against the insulating layer (19). 7 - Self-supporting composite panel (10) according to any one of claims 4 to 6, characterized in that the under-roof screen layer (23) of an element (11) extends beyond the latter to cover partly the adjacent element (s) (11 '). 8 - self-supporting composite panel (10) according to any one of claims 4 to 7, characterized in that the inner facing layer (17) is provided with a groove (40) arranged transversely in the vicinity of one of its longitudinal ends and arranged to cooperate with a cleat (8) disposed at least partially projecting from the top of the plate (5) of the frame (3) to maintain the self-supporting composite panel (10) in position on the latter. 9 - self-supporting composite panel (10) according to any one of claims 4 to 8, characterized in that the element (11,11 ') comprises at least one longitudinal reinforcing bar (42) integral with the first reinforcing layer (18,18 ') and disposed in the insulating layer (19,19'), said longitudinal reinforcing bar (42) extending between the lateral edges of said element (11,11 ') parallel to its longitudinal edges (15, 15 '; 16.16'). SIMON1-FR-1 TEXT DEPOSE_RQ / AQ 10 - Self-supporting method (10) for mounting composite panels according to any one of claims 1 to 9 at least on the sandpit (5) and the ridge (7d of the frame (3) of a residential house 5 ( 1) to form its roof (4), characterized in that one of the longitudinal edges (16) of an element (11) of each self-supporting composite panel (10) cooperates with the longitudinal edge (15 ') of cross section of complementary shape to an element (11 ') of the adjacent self-supporting composite panel (10), said self-supporting composite panels (10) being arranged for the longitudinal edges (15', 16) to be perpendicular or parallel to the longitudinal axis of the ridge (7), the joining of self-supporting composite panels (10) adjacent to each other 15 and their fixing on at least on the plate (5) and the ridge (7) of the frame (3) being produced by fixing members . SIMON1-FR-1 TEXT DEPOSE_RG / AG 2/3