CA2720454C - Method and device for trimming for facade or roof of a building - Google Patents

Abstract

The invention relates to a hollow panel (1) designed capable of being fixed to the structure of a building, and reactive to thermal radiation, in particular solar radiation, comprising, between a first face (2) designed capable of being directed towards a first medium. (A), and a second face (10) designed capable of being directed towards a second medium (B), at least one internal channel (3) for circulation of fluid, in particular air, extending between a first opening ( 5) located at a first end edge (4), and a second opening (7) located at a second end edge (6), said inner channel (3) extending between at least one first perforated receiver (50) designed capable of being exposed to thermal radiation on the side of said first face (2), and on the other hand at least one second airtight receiver (51) on the side of said second face ( 10) and consisting of a condenser (110), characterized in that said first receiver (50) and l he condenser (110) consists of a flexible sheet (203), in particular of textile.

Description

Hollow panel, designed to be attached to the structure of a building, and reactive to thermal radiation.
The invention relates to a hollow panel, designed to be attached to the structure of a building, and reactive to thermal radiation, especially solar, comprising, between a first designed face adapted to be directed to a first medium, and a second side designed adapted to be directed to a second medium, at least one channel internal fluid circulation, especially air, extending between a first opening located at a first end edge, and a second opening located at a second end edge, said inner channel extending enter on the one hand at least a first perforated receiver designed adapted to be exposed to a thermal radiation on the side of said first face, and on the other hand minus one second airtight receiver on the side of said second face and constituted by a condenser.
The present invention is in the field of building, both in construction new than in renovation.
The invention relates more particularly to exterior cladding for buildings, facade or roof, and especially the search for optimization between the inside and the outside of the building.
The energy economy is the main concern of the designers of buildings. The use of natural resources, such as energy solar, is known, essentially in the form of photovoltaic panels electrical energy, or in the form of solar panels with water circulation.
Most applications of this kind relate to roofing equipment, f-and most of the time over-roofing, which translates into a need for structural reinforcement, high costs, and an aesthetic appearance poor.
Few installations use vertical facade surfaces. However, even if their orientation with respect to the solar rays may be less favorable an inclined roof plane, the developed surface of oriented façades facing sun is consistent and underutilized.
The object of the invention is to overcome the drawbacks of the state of the art by proposing to incorporate features including energy by the setting in the process of dressing the facade or covering a building, to replace the skin of a building or to double it, this process putting reversible and easy assembly elements, integrating particular energy receivers-sensors, so as to constitute a device active, easily accessible for maintenance, and able to take action of regulation on the temperature inside a building, so as to to permit a consequent saving of energy.
The invention aims in particular at improving the thermal efficiency of a cladding or roofing, and to adapt it to the parameters of its environment, including seasonal and meteorological. This adaptation must can be obtained by an easy exchange of removable components and low unit cost.

2 For this purpose, the invention relates to a hollow panel, designed capable of being fixed to the structure of a building, and reactive to thermal radiation, in particular solar, comprising, between a first designed face adapted to be directed to a first middle, and a second designed face capable of being directed to a second medium, at minus one internal channel of circulation of fluid, in particular of air, extending between a first opening at a first end edge, and a second opening located at a second end edge, said channel inside extending between on the one hand at least a first perforated receiver designed adapted to be exposed to thermal radiation on the side of said first face, and else share at least one second airtight receiver on the side of said second face and constituted by a condenser, the first receiver and the condenser being constituted by a flexible sheet, in particular textile c.
The invention makes it possible to modify both the external appearance and the performances of a building, in the interest of personal safety, and a easy and economical implementation.
One aspect of the invention relates to a hollow panel designed to be attached to the structure of a building, and responsive to radiation thermal, especially solar, comprising, between a first face conceived able to be directed towards a first medium, and a second face designed to be directed to a second medium, at least one channel internal circulation of fluid, especially air, extending between a first opening located at a first end edge, and a second opening located at a second end edge, said inner channel extending between on the one hand at least a first Perforated receptor designed to be exposed to thermal radiation on the side of said first face, and secondly at least one second airtight receiver on the side of said second face and constituted a condenser, wherein said first receiver and the condenser are constituted by a flexible sheet including textile.
Other features and advantages of the invention will emerge from the detailed description which will follow non-limiting embodiments of the invention, with reference to the appended figures in which:
FIG. 1 represents schematically, partially and in perspective, a cladding device consisting of several panels according to the invention, presented disjointed to facilitate understanding;
FIG. 2 is a view similar to FIG. 1, seen from the side according to FIG.
direction X;
FIG. 3 is a schematic, partial and sectional representation of a set of panels according to the invention, installed inside a building, and the associated air flows;

2a FIG. 4 is a diagrammatic, partial and sectional view transverse, a panel according to the invention;
FIG. 5 schematically represents, in cross-section, a panel according to the invention, and the different air flows in this panel;
FIG. 6 represents schematically and in perspective the structure a panel according to the invention;
FIG. 7 is a schematic, partial and perspective representation, a cladding device consisting of several panels according to the invention;
FIG. 8 is a schematic and perspective representation of a first face, the structure of a condenser constituting a second receiver;
FIG. 9 represents schematically and in perspective the structure of Figure 8, at the opposite side to the previous;
FIG. 10 is a schematic, partial and sectional view cross section, a variant of Figure 4;
FIG. 11 schematically and in perspective shows a panel according to the invention, with a flexible sheet mounted;
FIG. 12 is a diagrammatic, partial and perspective, part of the means for energizing a flexible sheet according to the invention;

3 FIG. 13 represents, schematically, partially and in perspective, a zone for introducing a flexible sheet into a panel according to the invention;
- Figure 14 is similar to Figure 13, at another angle;
FIG. 15 represents, schematically, partially and in perspective, a variant of this introduction zone;
FIG. 16 represents, in a schematic, partial and front view, the introduction zone of FIGS. 13 and 14;
FIG. 17 is a schematic, partial and top view, a normal to a flat surface, a variant of the panel according to the invention, with a flexible sheet mounted;
FIG. 18 represents, schematically and in vertical section, a facade cladding device in a particular embodiment of the invention;
FIG. 19 represents, schematically and in horizontal section according to CC, an alternative embodiment of Figure 18;
FIG. 20 represents, in a similar manner to FIG. 19, another variant of achievement;
FIG. 21 represents, schematically and in elevation, a assembly translucent panels that comprises the embodiment of Figure 18;
FIG. 22 schematically and in elevation shows a tool of FIG.
laying a flexible sheet that comprises the embodiment of Figure 18;
FIG. 23 illustrates another variant of laying and energizing a such a flexible sheet;
FIGS. 24 to 27 illustrate another variant of laying and placing under voltage of such a flexible sheet, FIG. 24 in partial perspective, the figure 25 in elevation, and Figures 26 and 27 in side view from the plane of the tablecloth flexible.
According to a method of covering the facade or covering of a building, has at least a first perforated receiver 50, at a distance of a second receiver 51 attached to the structure of said building or constituted by said structure, of way to arrange between said second receiver 51 and said first receiver perforated 50 closest to the latter, a channel 3 of air circulation, characterized by the fact that one chooses such a first perforated receiver 50 removable and comprising a flexible sheet 203 or constituted by such a flexible sheet 203.
In a first embodiment, as visible in FIGS. 1 to 7, the first perforated receiver 50 is incorporated in a panel 1. The invention allows then the cladding of the facade or the roof of the building by the construction of a device 100 of external cladding constituted by the juxtaposition of panels 1.
In a second embodiment, as visible in FIGS. 10 to 17, the first perforated receiver 50 is flexible, and is stretched in front of the structure or roof, or the existing cladding of the building, by the means at less a device 201 for fixing and energizing a flexible sheet 203, incorporated in the first perforated receiver 50, or the constituent.

4 The second mode can be combined with the first, the device 201 being arranged so as to cover the surface constituted by an assembly of panels 1, to cover the surface of a single panel 1, the device of cladding 100 then having as many devices 201 as panels 1.
In the first embodiment, the panel 1 is hollow. This panel 1 is designed to be attached to the structure of a building, and is responsive to influence thermal energy, especially solar radiation, in front of which it is intended to be posed. The device 100 of external cladding for a building, on the front or in roof, has a set of hollow panels 1. These are preferably substantially planar or of identical curvature between them. In particular they can take the form of parallelepipeds, or prisms in the sector cylindrical, with a constant radius of curvature. These hollow panels 1 are stackable according to a Z direction, preferably vertical.
This panel 1 comprises a first face 2 designed able to be directed towards a first middle A, especially the exterior of a building or a source hot, and a second face 10 designed adapted to be directed to a second medium B, in particular inside a building or area to be heated.
According to the shape of the structure of the building to equip such panels 1, different configurations are possible as to the geometry of this first In the most usual embodiment, the first face 2 is plane.
The first face 2 may also have a constant curvature in at least a direction. In a variant, the first face 2 has a first curvature constant in a first direction, and a second constant curvature in a second direction orthogonal to said first direction, this first curvature and this second curvature may be identical or different values.
In its most common embodiment, the panel 1 is shaped cuboid.
The panel 1 comprises, between its first face 2 and its second face 10, the less an inner channel 3 of fluid circulation, in particular air. This channel 3 extends between a first opening 5 located at a first end edge 4 of the panel 1, and a second opening 7 located at a second end edge 6.
Preferably, this first opening 5 and this second opening 7 are located one below the other or vice versa.
According to the invention, the inner channel 3 extends between on the one hand at least one first perforated receiver 50 designed to be exposed to radiation thermal on the side of the first face 2, and secondly at least a second receiver 51 airtight on the side of said second face 10.
In a particular application, and preferred in the context of the invention, the perforated receiver panel 50 is itself the first face 2.
The first perforated receiver 50 is designed to transform a radiation thermal, especially of solar origin, by reflection and / or transmission and / or absorption.
This first receiver 50 stops a first part of the radiation of the source of heat, especially solar, especially by reflection, and, thanks to its perforation, let a second part pass to the second receiver 51.
The first receiver 50 can absorb some of the heat, and warm up, the transmission of energy to the second receiver 51 is therefore made in the channel 3, either by direct passage or by radiation from the first receiver 50 to the

5 second 51. If the latter reflects some of the energy, the first receiver 50 constitutes a return dam. Most of the energy received from first middle A remains in channel 3.
We understand that the notion of perforation is to be taken in a broad sense, the perforation allows the passage of a certain amount of air, at the same time than a part of a thermal radiation. The perforation of the first receiver can be indifferently be constituted by holes, cutouts, orifices, spaces between the strands of a non-woven fabric, spaces between the threads of weft and warp of a woven, metallic or woven textile or wire mesh plastic, or similar.
In a preferred and advantageous manner, the first receiver 50 is removable, and can adapted for example according to the climatic conditions, in particular seasonal, and the panel 1 includes housing for its positioning and his fixation.
In an advantageous embodiment, the first receiver 50 comprises, in its thickness, through openings that are designed able to allow the direct passage of light rays below a given incidence in relation to to the normal at the point in question, and to prohibit it beyond that incidence. We understands that, if the first receiver 50 extends in one direction sensibly vertical, for use against solar radiation, these openings through them allow the passage of radiation from the winter sun, down on the horizon, in a context where one seeks to use one's energy for heat an interior volume, while on the contrary they stand in the way of radiation of summer sun near the zenith, and limit the penetration of solar energy in the panel.
In an alternative embodiment, the first receiver 50 comprises volumes projecting projections adapted to channel the air towards the channel 3. Preferably, these protruding elements are recessed from the first face 2 towards the interior of the panel 1, so as not to catch the clothes of passers-by or airborne elements such as dead leaves or the like.
These salient elements form a windsock, and can be especially in tubular elbow shape, spherical cap or the like. This round includes an opening, which can be oriented towards the ground to avoid filling of panel by precipitation. It can also be oriented differently, especially to avoid the introduction of dust. Preferably, the panel 1, or /and the structure 100 comprises means for collecting and discharging water from precipitation and possible condensates.
Preferably, the first receiver 50 is constituted by a flexible sheet 203, in particular textile, stretched. This configuration has the advantage of a weight extremely weak, and very easy to exchange. Preferably, the

6 housings that includes the panel 1 for its positioning and fixing are accessible in situ, without requiring the complete removal of the panel 1.
Advantageously, the first receiver 50, or / and the second receiver 51, has, on at least one of its faces, a screen printing coating, impression or similar. This coating may be chosen to be reflective, for wavelengths determined, depending on the season and / or conditions climate.
For air pollution control applications flowing in channel 3 of the panel 1, the first receiver 50 or the second receiver 51 may receive a coating comprising a titanium oxide TiO2nanometric, or another catalyst also designed to promote the transformation of organic compounds VOCs into harmless elements, or CO to CO2, or NO to NO2.
In addition to the technical functions specific to the first receiver 50 set forth above, above, this receiver can receive a particular decoration, which is particularly easy when it is constituted by a woven textile web and or printed and / or screen printed. Has the ability to vary inexpensively the appearance of a building wall adds the possibility of integrating posts visual security, or advertising. The application of decorations camouflage for military applications or for installations in of the protected areas is very easy, especially since panel 1 according to the invention does not require external glazing, although it is possible to install level of the first side 2.
In a first variant embodiment, the first perforated receiver means 50 is interposed between the channel 3 and the first face 2.
In another variant embodiment the first perforated receiver means 50 is affixed to the first face 2 outside the panel 1.
In another variant embodiment, the first receiver 50 is translucent. It can also be constituted by a plate, and in particular by a translucent plate. It may consist of a translucent flexible film, and perforated.
In yet another variant embodiment, the first receiver 50 includes at least one surface treated by sanding or etching. This treatment of Sandblasting or chemical etching can be applied regardless of the configuration of first receiver, even textile, and has the effect of increasing the surface exchange.
This channel 3 is designed to communicate, at the level of the first opening 5, or / and the second opening 7, with an inner channel 3 of another panel hollow 1 of the same type, or with means of communication between the vein of fluid constituted by the channel 3, and the volume of a part, which can be constituted by deflectors or the like. It is thus possible to build, to panel base 1, a vertical component partition including a channel continued over its entire height, especially for air circulation. Such stacking a for effect, resulting from the increase in wall height, to increase the contribution of the convective effect.

7 The panel 1 can be declined in different variants; in particular, the channel 3 can be designed to communicate, on the one hand with the first medium AT
by at least a first external communication opening 8, or / and else share with the second medium B by at least a first inner opening of communication 9.
In an advantageous embodiment of the invention, the hollow panels 1 are still juxtaposed with each other in a direction X perpendicular to the vertical direction Z and tangent to the first faces 2 of the panels 1.
This tangential juxtaposition, or lateral, allows, by increasing the width wall, to increase the flow of the fluid, in particular of the air, circulating inside the panels.
In another embodiment of the invention, the panels 1 are still juxtaposable, in another direction Y perpendicular to both the vertical direction Z
and to the direction X, with other panels 1 of the same type or with seconds insulation panels 101. In this case, the insulation panels 101 can each comprise at least one through opening 11, which is designed to to be juxtaposed with a first interior opening of communication 9 of a sign 1 if the latter has them. Of course, an insulation board 101 can have as many openings, in line with them, as the panel 1 to which it is adjacent, as visible in Figures 1 and 2.
It is understood that the juxtaposition of insulating panels, on the thickness of a exterior wall of building, allows to increase the thermal inertia of this wall.
Preferably, the channel 3 comprises at a first end edge 4 a first so-called outer opening 8 of communication to the first medium A
and a first so-called inner opening 9 of communication towards the second middle B.
Similarly, it comprises at the second end edge 6 a second opening called 13 of communication to the first medium A and a second opening said inner 14 communication to the second medium B.
In an advantageous variant for a home automation treatment, at least one of the internal openings 9 or / and 14, and / or outer 8 or / and 13, that includes the channel 3 is designed to be closed, in particular by means of shutter controlled by piloting means.
Any panel 1 may comprise all or part or none of the openings side but must have channel 3.
A panel 1, or a stack of such panels 1, comprising such openings, upper and lower, to the first middle A and the second medium B, may advantageously be used, as can be seen in FIG.
according to the openings that we use, according to the climatic conditions, schedules, and temperature differentials between the first medium said external and the second medium B said internal. The occultation of the openings 9 and privileges an external-external flow. The occultation of openings 9 and 13 favors an external-internal flow. The occultation of openings 8 and 13

8 favors an internal-internal flow. The occultation of openings 8 and 14 privileges an internal-external flow.
It is therefore understandable that it is thus possible, depending on the circumstances, to regulate the temperature of an internal medium B.
The stacking of the panels 1 makes it possible to constitute a column of great height compared to that of each panel, which ensures a certain print, therefore a renewal of high flow air within the interior environment B.
A
The object of the invention is to enable a large differential of temperature between the air entering the lower part of the stack of panels 1, and the air exiting at the top of this stack.
Preferably, at least one radiation-reactive panel 1 is integrated.
solar in a cladding device 100, which can then be used as energy regulator for the B environment inside the building.
As can be seen in FIG. 3, in a particular arrangement, at least one panel 1 comprises at least one oblique opening 15 between the channel 3 and the second face 10, preferably arranged upwards obliquely towards the middle inside B, and which is sized to allow the passage of a portion less than a certain part of the flow rate of the flow flowing in the channel 3, in particular less than 25%. This opening 15 makes it possible to generate a current rising air 44 in the middle B, along the wall constituted by stacking or / and the juxtaposition of panels 1, 1A, 1B, 1C, at a second face that these panels contain. This updraft 44 draws the air located at 48, and creates a destratification flow 45. In the high local, a substantially horizontal partition 46 may be formed between the volume of the middle B and the exit zone, through the upper internal opening 14C of 1C panel located the highest, an air flow 49 flowing in the channel 3 common to panels 1, 1A, 1B, 1C. This partition 46 brings back the flow 45 and the flow 49 at level of a mouth 47 where their junction takes place, and which tends to send back to the soil 48 a stream 90.
It is understood that, as can be seen in FIGS. 1 and 2, in the case where one or more insulation boards 101 are plated on the middle side inside B, on a panel 1, they also have openings oblique 15A in the extension of such an oblique opening 15. Naturally, this oblique opening 15 may have a dual function, and in particular take place of second opening 14.
Preferably, the hollow panel 1 comprises, at its first edge 4, respectively at its second end edge 6, a first strip 16, respectively a second strip 17, comprising first means of support and guidance 18, respectively second support means and guiding 19, designed to allow its assembly by stacking with another panel hollow 1 of the same type. This strip 16, respectively 17, has a surface bearing and sealing 20, respectively 21, for the juxtaposition of sealed of the first opening 5, respectively of the second opening 7, of panel 1, with the second opening 7, respectively the first opening

9 of an adjacent panel 1, as visible in FIG. 3 at the junction between the second opening 7A of the panel 1A, and the first opening 5B of the panel 1B.
The first support and guidance means 18 and the second 19 may be advantageously designed, either of complementary profile to each other, or of identical profile to each other. In the latter case, this profile is designed fit at cooperate with a complementary profile that includes a rail attached to the structure of a building, to which is fixed the panel 1. The positioning, the support and the guidance are then made by such a smooth. In the case of juxtaposition of panels 1, they are mounted on both sides of such smooth.
Advantageously, the fixing of the panels to such a connecting piece incorporates a locking function in position. We can still imagine the case where this smooth has different profiles on both sides to distinguish by example of the lower supports and the higher supports and constitute a keyed for the mounting of panels, the latter then having a profile distinct lower of a higher profile, with respect to the first and second bearing and guiding means 18 and 19. However, for the sake of streamlining components and lowering costs, preferably these profiles are identical to each other.
In an advantageous embodiment, the first strip 16, respectively the second strip 17, comprises a first bearing surface 22, respectively a second bearing surface 23, which is designed to cooperate with means of webbing 80 for closing and / or fixing the panel 1, in particular for closing or / and fixing a peripheral structure 55 forming a framework of structure of the panel 1, on which are fixed the first face 2 and the second Indeed, such a panel 1 may comprise several elements removable, especially the first receiver 50.
It is interesting in a particular version with panels 1 extractable, of power, after at least partial extraction of the panel of the assembly of which it is part, deposit an element and replace it with a other.
This allows, moreover, a change of assignment of the panel 1 during his life. To facilitate this intervention, which is preferably carried out in panel 1 has a removable structure, including the first bandeau 16 and the second band 17, as well as any cheeks called first 53 and second 54 sleepers, on side faces 33 and 34, on both sides of the second face 10 and first face 2 which preferably constitute the larger areas of the panel 1. The binding of these bands and these sleepers is advantageously carried out by one or more straps 80 stretched in periphery of the panel 1. The bearing surfaces 22 and 23 are preferably designed grooves adapted to receive the straps or 80, either directly or by through elastic materials. Strap tensioning means, particularly eccentric, are advantageously directly integrated into the panel 1, at the level of one of his banners or any lateral crosspieces.

In the usual case where the panel 1 comprises, serving as a support for the first face 2 and at the second face 10, a peripheral structure 55 with four sides, the first strip 16 and the second strip 17 are joined, at their level.
ends, by a first 53 and a second 54 lateral crosspieces, joining respectively at first ends, and at second ends, the first end edge 4 to the second end edge 6.
crossing 53, respectively 54, may have a first lateral opening respectively a second lateral opening 36. In a particular embodiment, each lateral cross member 53, 54, has a lateral opening 35, 36.

10 He is at note that the panel 1 does not always include sleepers side. Indeed, in a current application of treatment of a facade or of a roof over a full width, the channel 3 can be designed suitable for communicate at at least one lateral face 33, 34 substantially perpendicular to the first end edge 4 or to the second edge end 6, by a lateral opening 35, with a lateral opening that comprises another panel 1 of the same type for putting in communication with a the inner channel 3 of this other panel 1. This lateral opening 35 can, such visible in Figure 1, occupy the entire side face of a sign 1.
In order to be able to exert an action on the flow of fluid, in particular of air, crossing channel 3, and to transform, or to reject, according to the choice of the user, the energy of solar origin, the hollow panel 1 comprises preferentially, between the channel 3 and a second face 10 designed capable of being directed to the second inner medium B, and arranged in this order since channel 3, heat exchange means 28, accumulation means energy 29, means of reflection 30. This panel 1 is still able to contain, between the reflection means 30 and the second face 10, insulation means 31.
The second receiver 51 is constituted by all or part of these means exchange thermal 28, energy storage means 29, reflection means 30, means insulation 31.
Preferably, the heat exchange means 28 are constituted by the second receiver 51, or incorporated in the latter.
Advantageously, the second receiver 51 is mounted in a plane substantially vertical, and comprises, facing the first face 2, a volume profile, who is designed to maximize the shadow of the summer sun under strong relative to the normal of the second receiver 51, and to minimize the shadow winter sun range under low incidences compared to normal of second receiver 51.
This second receiver 51 is constituted by a condenser 110. This can, still, constitute means of heat exchange 28, or / and means of energy accumulation 29, and / or reflection means 30, and / or means This condenser 110 is flexible.
This condenser 110 has a first face 112 designed able to be directed thermal radiation, in particular the exterior of a building or a building

11 hot source, and in particular solar radiation.
This condenser 110 is preferably airtight.
He is still conceived able to reflect some of the energy.
In a preferred and advantageous manner, the condenser 110 is removable, and can be adapted for example according to the climatic conditions, and the panel 1 has housing for its positioning and fixing.
Preferably, the condenser 110 is constituted by a textile ply 203 tense, with the same coating and decoration possibilities as the first 50. This configuration has the advantage of extremely low weight weak, and of great ease of exchange.
For air pollution control applications circulating along its first on the face 112, the condenser 110 can receive a coating comprising an oxide of titanium Ti02nanometric, or other catalyst also designed able to promote the transformation of volatile organic compounds known as VOCs into elements harmless, or CO to CO2, or NO to NO2.
In an alternative embodiment, the condenser 110 is translucent. he can also be constituted by a plate, and in particular by a translucent plate.
In yet another variant embodiment, the condenser 110 comprises at less a surface treated by sanding or etching. This treatment of Sandblasting or chemical etching can be applied regardless of the configuration of condenser 110, even textile, and has the effect of increasing the surface exchange.
In order to be able to exert an action on a flow of fluid, in particular of air, flowing along the first face 112 of the condenser 110, and to transform, or to reject, according to the user's choice, the energy of solar origin, the condenser 110 may comprise, between its first face 112 and a second face opposed to the latter, and arranged in this order from the first side 112, heat exchange means 28, energy storage means 29, Reflection means 30. This condenser 110 is still able to contain, between the reflection means 30 and the second face 112A, isolation means 31.
The condenser 110 is constituted by all or part of these exchange means thermal 28, energy storage means 29, reflection means 30, means insulation 31.
Advantageously, the condenser 110 is mounted in a plane substantially vertical, and comprises, turned towards the first face 112, a volume profile which is designed to maximize the drop shadow of the summer sun under implications strong relative to the normal of the condenser 110, and to minimize the shadow scope of the winter sun at low incidences compared to the normal of the second receiver.
Preferably, this volume profile 113 comprises a juxtaposition in quincunx of volumes 32 in half-drops of water whose swollen part is disposed on the ground side, as shown in Figure 8.
In an economic variant embodiment, the condenser 110 is flexible, and in particular can be constituted by a textile shaped volume. This configuration is interesting if channel 3 or panel 1 is large

12 size, the condenser 110 can be prepared in the form of coil, and unwound according to use; this avoids the construction of rigid condensers of far reaching, more expensive and / or difficult to achieve.
Preferably, the energy storage means 29 comprise a honeycomb structure 37 designed to contain an accumulator material or / and with a phase change, as visible in FIG. 9.
Alternatively, the condenser 110 is made in the form of a left plate which comprises, on its face facing the second face 112A and opposite the first face 112, these energy accumulation means 29. This configuration allows a reduction in the number of components and allows a significant gain of weight, especially when the condenser 110 is made of plastic.
Beyond the conventional thermal aspect, the invention can also ensure of the refrigeration functions.
The regulation of thermal energy can, again, be completed by a regulation of hygrometry between different A and B media. The condenser can then in particular be equipped with circulations of water, in particular by runoff, and / or communications between water reservoirs and desiccators or humidifiers as appropriate.
If a configuration of high rigidity is sought, the second receiver 51 is equipped, on its side turned towards the first face 2, with volumes in half drops of water 32, and on its opposite face of nests bees 37, so that than the meshes of these respective profiles on the opposite faces are in staggered with each other.
In a configuration where all panels include such means 31, each of the components of the cladding device 1 according to the invention can be considered as insulating.
In a most common application, the first end edge 4 is parallel and opposite to the second end edge 6. Similarly, in a preferred application, the panel 1 is of rectangular prismatic shape, especially parallelepipedic.
In an alternative embodiment, a panel may be fully open on a entire side, that is to say of its first face 2 or its second face 10, the channel 3 is then in complete communication with the atmosphere of one of the environments A or B.
Preferably, the dimensions of a panel 1 according to two dimensions, called width and height, X and Z according to the example of Figure 1, are large in front of the third said thickness, according to Y in the same example, that is to say each at less than five times larger than said thickness. The fluid flow, preferentially air, flowing in the channel 3, is then assimilable at a tablecloth.
Preferably, the panels 1 or 101 are designed with dimensions and mass, especially less than 25kg, allowing their handling by a single man to the arm strength. The dimensions of 1500 x 1000 x 175 mm are suitable particularly well to the described applications and make it possible to respect this

13 limit of mass, when the realization of the bands, faces and sleepers, result of the implementation of plastics such as PVC, PA or other.
Preferably, the panels 1 according to the invention are juxtaposed for constitute a device 100 for cladding for a building, on the façade or in roof having at least two panels 1 of identical curvature between them, stackable in a vertical direction Z, whose channels 3 communicate. These panels are still juxtaposed with each other in a direction X perpendicular to the vertical direction Z and tangent to the first faces 2 of the panels 1, which are still juxtaposable, in another Y direction perpendicular to both the vertical direction Z and direction X, with other panels 1 of the same type or with insulation boards 101. When such an insulation board 101 is juxtaposed with an inner communication opening 9 or 14 of a panel 1, he then has at least one through opening 11 designed apt to be juxtaposed with this opening.
In short, the invention makes it possible to create a volume of convective flow air on the entirety of a surface of cladding, in particular of facade or roof of building, using juxtaposed and / or stacked elements, in particular each of mass less than 25 kg and less than or equal to 1500 x 1000 x 200 mm facilitating and reducing transportation and installation costs.
The cladding device 100 consisting of panels 1 according to the invention allows to achieve the same convective performance at a lower cost than wall exterior which would be built in a monobloc way, so of difficult elaboration and expensive, requiring highly qualified personnel.
The device according to the invention is, still, scalable, and makes it possible to modify, by swapping or / and removing or / and adding panel, the features techniques or / and aesthetics of a facade or a roof.
Naturally, the invention is described preferentially for the envelope external of a building, due to the temperature differential naturally between the first external medium A and the second internal medium B.
understands that the invention is applicable to the manufacture of any wall, even internal to a building, between two media A and B of characteristics thermal different, for example between offices and factory halls.
Beyond the conventional thermal aspect, the invention can also ensure of the refrigeration functions.
The regulation of thermal energy can, again, be completed by a regulation of hygrometry between different A and B media. Channel 3 can so in particular be equipped with water circulation, in particular by runoff or / and communications between water tanks and desiccators or humidifiers as appropriate.
The panel according to the invention can also be provided with a device 201 of fixing and powering a flexible sheet 203. This is designed apt to constitute a first perforated receiver 50, or conceived adapted to constitute the condenser forming the second receiver 51, in the case where one chooses this last as being flexible. This flexible sheet 203 can thus have a function

14 technique, such as absorption, reflection, filtration, protection, and / or decorative function of media decor holder or the like. In addition to utilisati ^ n preferred as first perforated receiver 50 and / or second receiver such a flexible sheet 203 can therefore still be used to form heat exchange means 28, or / and energy storage means 29, or and reflection means 30, or / and isolation means 31.
The invention seeks the use of lightweight materials, easily and quickly removable, to bring new features to a facade or to a building cover: a variable aspect in time, a regulation thermal temperature in the building, and this also easily for the Renovation of an existing facade or roof, by plating elements reported, only for the construction of a new exterior cladding.
The attachment and the powering up of the flexible ply 203 are carried out in pressing on at least a first bearing surface 204 and a second surface support 205, which are located on either side of an intermediate surface 202, especially a flat surface, near which is stretched the tablecloth flexible 203. Naturally, these bearing surfaces 204 and 205, which are designed as end bearing surfaces of a section of the flexible sheet 203 deployed at level of this intermediate surface 202, are minimum supports: the tablecloth flexible 203 can still be supported, or at least limited in its deflection, by intermediate bearing surfaces, not shown on the figures, and interspersed between the surfaces 204 and 205.
If, in a preferred embodiment, the intermediate surface 202 is flat, we can, of course, design other embodiments, according to which the flexible sheet 203 is stretched in a left form, for example with bearing surfaces 204 and 205 extending in different directions, or / and in being supported on intermediate support surfaces defining, at less partially, the envelope of this left surface. It is therefore possible of to intoxicate the invention for any construction topography, which authorizes all architectural fantasies, since the choice of a tablecloth flexible allows precise adaptation to the relief, at least as long as the surfaces remain developable. For particular areas with non-developable surfaces, the flexible sheet 203 may incorporate surfaces updates in ad hoc form, for example by molding or the like.
In particular, the device 201 according to the invention makes it possible to flexible sheet 203 closest to the intermediate surface 202. It is understood that this intermediate surface 202 may be, or a solid surface as visible in FIG. 15, or again, as can be seen in FIG.
opening delimited by a cut-out in a structure, in particular a plane structure if the intermediate surface 202 is chosen as flat. In this last case, the flexible sheet 203 fulfills a particular function shutter the intermediate surface 202.
The invention makes it possible to carry out a preparation at the lowest cost of the tablecloth flexible 203 before installation. In particular, this preparation concerns prior equipment of two opposite end edges. For this purpose, device 201 comprises at least one first rod 210 and at least one second 211, each designed adapted to immobilize the flexible sheet 203 to a first end edge 208, respectively at a second end edge 209.
These 5 sticks 210 and 211 can take different forms. In a way favorite, they each is in the form of a profile, having a slot or a groove for accommodating the end of the flexible ply 203. The maintenance of this can be done in different ways: by jamming or pinching the rod which is then elastic, by sewing, gluing, heat sealing, Heat sealing, crimping, or the like. The flexible sheet 203 can still to be maintained in its housing by a complementary piece of simple shape such a corner or a straight stick. All these technologies are very easy to implement, and it is possible to equip a large flexible tablecloth width, for example two meters without any particular problem. In the case of a tablecloth flexible

15 203 of large dimensions, it can be equipped, at each of its borders end 208, 209, a succession of rods 210, respectively 211, these successive rods that can be articulated to each other, to the manner of fiberglass or carbon tubular tent poles, which represent a technology particularly adapted to the case.
Advantageously, the first 210 and / or the second rod 211 comprises still, at one end at least, an extraction member, such as a ring, hook or the like, designed to facilitate the removal of the flexible sheet 203.

In a preferred embodiment, as shown in FIGS. 11 to 17, the device 201 comprises a structure composed of at least a first bandeau 212 and a second banner 214. At the first banner 212 a first groove 213 extends in a first substantially longitudinal direction D1.
Of same, at the second strip 214, a second groove 215 extends along a second direction substantially longitudinal D2. This first throat 213 and this second groove 215 are each designed to receive over its entire length the first stick 210 or the second stick 211.
Advantageously, in the case where the flexible sheet 203 is to be mounted in a definite sense, upside down or obverse, up or down, right or left, each groove can be designed to accept cooperation only with one type of baguette, for example with a keying device such as a dish or the like, or with a dimension, in particular a diameter, determined for the rod and the housing designed able to receive it.
The first groove 213, respectively the second groove 215, is still provided, at a first input end 220, respectively at a second end input 221, first input means 216, respectively second introduction means 217, by which the rods carrying the tablecloth flexible 203 are introduced in the direction Dl, respectively in the direction D2.
According to the invention, the first introduction means 216, or / and respectively said second insertion means 217 comprise a first channel 224 designed adapted to receive the first rod 210, respectively a second channel 225 designed

16 able to receive the second wand 211, and they still include a first ramp 218, respectively a second ramp 219, designed to serve as support to the flexible ply 203 equipped with the first rod 210 and second rod 211.
A slot allows the flexible sheet 203 to exit the first groove 213 or of the second groove 215, to bypass the ramp 218 or 219 as appropriate.
The first ramp 218, respectively second ramp 219, is section increasing in the direction of introduction of the rod 210 or 211, between the first input end 220, respectively the second input end 221, and a middle zone 222 of the first gorge 213, respectively a median zone 223 of the second groove 215, so as to power up the flexible sheet 203 then of the introduction of the first stick 210 into the first channel 224 and the second wand 211 in the second channel 225.
In an advantageous variant, as visible in FIG. 16, the first ramp 218, respectively the second ramp 219, is made of material elastic to exert on the flexible ply 203, supported on said ramp 218 or 219, an effort of tensioning.
Preferably, the first channel 224, respectively the second channel 225, extends to an end stop 207 designed able to stop the first rod 210, respectively the second rod 211.
The first ramp 218, respectively the second ramp 219, is, so preferred, consisting of a frustoconical sector of axis parallel to the first direction D1, respectively to the second direction D2. This form, or the shape of a growing section of a variant shown in FIG. 15, can, in the preferred case of a plastic execution, be injectable in a simple mold.
It is understood that it is sufficient for a ramp on one side of the flexible sheet 203 for ensure its tensioning. However, the solution in which the first throat 213 and the second throat 215 are each equipped with a ramp 219. This configuration makes it possible, in particular, to use strips 212 and made of lightweight materials, such as plastics, while having sufficient elasticity to achieve a good powering of the flexible sheet 203, even when it is made of a rigid material, such a fence.
Preferably, the first channel 224, respectively the second channel 225, is thus made of an elastic material and has a section at rest lower to that of the first rod 210, respectively of the second rod 211, of way to exercise on the latter a tightening force.
In a preferred embodiment as visible in FIG. 12, the first channel 224, respectively the second channel 225, is opened according to a generator on which a first flange 226 bears substantially radially, respectively a second wing 227, made of elastic material and designed apt to serve as a support for the flexible tablecloth 203 and to exert on it a putting effort in voltage. The pre-tensioning action at the introduction of the flexible sheet 203 in the device 201 is thus supplemented by means of holding under tension that

17 constitute the elastic wings 226 and 227. These last allow, again, of compensate thermal or other thermal expansion.
Insofar as, to simplify the laying of the flexible ply 203, one does not equip than two sides of the latter, it is possible, advantageously, to arrange the device 201 to ensure even tension across the entire surface, and avoid any effect of wrinkling. For this purpose, in a preferred embodiment, as visible on the FIG. 17, the first channel 224, and the second channel 225, respectively, comprises a curvature 230, respectively 231, bringing its median area closer to the surface intermediate 202 located between said first strip 212 and said second bandeau 214, substantially parallel to the intermediate surface 202, and in particular in a plane parallel to this intermediate surface 202 if the latter is selected plane. Thus, in the case of the laying of a flexible sheet 203 of shape rectangular flat, it is stretched by its four corners, close to the abutment areas of the chopsticks and introduction areas thereof.
In the same way, advantageously the first wing 226, respectively the second wing 227, has a curvature 230A, respectively 231A, bringing together her median area of the intermediate surface 202 located between said first bandeau 212 and said second strip 214, substantially parallel to the surface intermediate 202, and in a plane parallel to that of this surface intermediate 202 if it is chosen flat.
In an alternative embodiment, a similar effect can be obtained by playing on the section or thickness of channels 224 and 225, or / and wings 226 and thicker in the middle zone, to obtain a voltage differential between the mid-zone and the end zones, that is to say abutment and introduction of each baguette. Thus, the first wing 226, respectively the second wing is of greater thickness in the median zone, so as to generate a voltage differential between the central zone and the end zones, be of thrust and introduction of each stick.
Preferably, the first direction D1 and the second direction D2 are of the straight. Preferably, the first direction D1 and the second direction are parallel. Preferably, the intermediate surface 202 is flat.
The rods 210 and 211 may, depending on the case, be rigid or flexible.
Naturally, the mounting mode may differ at both ends, one of them can consist of a simple slot in which is threaded the flexible sheet 203, provided with stop means on this slot, such as a hem incorporating a stick or the like.
This mode of assembly according to the invention allows a very simple prefabrication, and at a very low cost, a flexible sheet 203, and guarantees its perfect assembly sure a building structure, with a very easy and effective tensioning.
It is thus possible, for a very low cost, to dispose, successively, of outside towards the interior of the building, in a substantially parallel manner to each other in order to be able to delimit air ducts, several flexible sheets 203 each having one or more functionalities particular: external appearance of the building, first perforated receiver 50, second

18 receiver 51, condenser 110, heat exchange means 28, means accumulation energy 29, reflection means 30, insulation means 31.
It is also possible to combine flexible sheets 203 and rigid structures by photovoltaic panels constituting the second receiver 51.
photovoltaic cells appear on the market on flexible support, and can be placed on reels-unwinders to be deployed on demand for the production of electrical energy. However, the current supports only allow not all curvatures, and current supports can not be put under tension for their adaptation to a particular left form.
In a very simple version of facade cladding or renovation, you can plaster on the structure of the building, or on an existing cladding that covers, commercial boxes or hulls, for example MD hulls Arcelor-Mittal e, constituting the second receiver 51, and installing, remote from those-in order to constitute an inner channel 3, a device 201 provided with a tablecloth flexible 203 making perforated first receiver 50, particularly in the form a textile having perforations or openings for the passage of air and / or the light.
Naturally, it is possible, in the first as in the second mode of realization, to constitute several juxtaposed channels 3, delimited by tablecloths intermediate.
In a more elaborate version, the second receiver 51 is constituted by a condenser 110, in particular in its version comprising half-wave profiles drops of water 32 on its face towards the outside of the building, and profiles in nests bee 37 on its face towards the interior of the building.
If the invention allows, in a particular embodiment, the design of panels easy to handle by a single man, easily juxtaposed and ensuring the continuity of an interior channel 3, it also allows the design of devices for positioning and tensioning flexible sheets 203, and in particular in large dimensions, for example the height of a building in one band. Indeed, a device 201 as described above is adaptable indifferently to the equipment of a hollow panel 1 modular, or to a facade or complete building cover.
In any case, it is important to adapt the section S of the internal canal formed between the first perforated receiver 50 and the second receiver 51, by relative to the surface S 'constituted by the perforations or / and orifices of the first perforated receiver. Naturally, the calculation of the pressure losses differs according to that the air is, in the inner channel 3, in free convection or in convection forced, and still depends on other equipment implanted in this channel inside 3 and the nature of the walls of the latter. Good results are obtained with a S / S 'ratio between 0.5 and 2, and preferably between 0.8 and 1.2.
Preferably, the ratio S / S'increases with the altitude in the case particular where a suction or air extraction device is installed of channel 3, in the highest part of the latter with respect to the ground. We can therefore play either on the section S of the sheath widening as and when

19 mounted either on the section S 'of the first perforated receiver 50, or on the two in combination. In the case where one wishes to play on the section S ', one can choose to splice strips with different perforation openings, or still, in a simpler and more economical way, keeping the same structure of perforated receiver 50, in particular flexible sheet 203 from bottom to top, but from obscure a variable part according to the altitude, for example, simply, with a mask in the form of a non-perforated triangular-shaped band So first perforated receiver 50.
The use of flexible and removable plies in the building industry has many advantages: low cost, low mass, consequently reduced risk in the event of a fall on site, very simple preparation, low encumbrance in rolled form and thus economical transport and lifting, big ease of installation, ease of disassembly and exchange, ease of recovery and recycling.
In short, the invention provides means for dressing a facade or a building cover with a first perforated receiver 50, which is at once removable and flexible. This first perforated receiver 50, in the form of a tablecloth flexible 203 is, in a preferred embodiment, doubly removable: the tablecloth flexible 203 is stretched between two bearing surfaces 204 and 205, that is to say of the entire façade or cover, either at the level of a panel 1 which is a constituent element of a structure 100 of this facade or this blanket.
This flexible sheet 203 is, in all cases, easily removable from housing disposed on either side of these bearing surfaces 204 and 205. When it is disposed at the level of a panel 1 constituting a module, it benefits from removability of the latter, and is therefore removable in two ways: either with the panel module 1 itself, or out of the housing arranged on it.
Thus, the perforated receiver 50 can be changed from the bottom or the top of a facade or cover. It can also be fixed on a frame constituted by a panel 1 or attached to a panel 1, or to a frame attached to the facade or the coverage considered.
In the version where such a flexible sheet 203 is affixed to the whole height, or across the entire width of a façade or a blanket, in front of a plurality of panels 1 or cladding elements, it can be mounted crossing, if these panels or cladding elements themselves include a outer surface for example translucent, glazed or polycarbonate or similar, or if they have on their outer side another first receiver perforated 50. The flexible sheet 203 is then stretched in an inner channel 3 consisting of the back of this outer surface that the panels or elements of siding. It is preferably stretched between two bearing surfaces 204 and 205 disposed at the ends of the facade or cover element to be dressed.
Preferably, this first receiver 50 consists of a flexible sheet has solar control functions, so as to optimize its performance thermal.
So, it can for example be chosen white and reflective in summer, and black and absorbent in winter.

Advantageously, when you want to reuse an existing cladding without the deposit, or use panels or cladding boxes trade without special thermal function, the use of another flexible sheet 203, mounted at distance from the first, to constitute the second receiver 51, and the channel 5 interior 3 separating it from the first receiver 50, allows equipment very fast, inexpensively, without the need for scaffolding or heavy equipment handling such as a crane: a simple nacelle is enough to put one or more devices 201 of maintaining and energizing as many soft sheets 203. These can then be introduced from one end top, 10 weighted for their deployment, then set for powering them to a bottom end, be presented as a 65 roll from the bottom of the facade or cover. In this case, this roll is pushed with a tooling 64 to present it at the level of its upper housing 66.
This tool 64 can be either removable or remain integrated with the facade, 15 in particular arranged in lateral housing that includes the structure dressing, or inside the guide means 61, designed to serve as means of guiding to this roller during its installation, as visible in Figure 22.
In an alternative embodiment, as visible in FIG. 23, the sheet flexible 203 is mounted on a deformable frame 75 constituting a variant of

Device 201 for fastening and energizing the flexible sheet, designed fit to cooperate with lateral guides 61, or slides, that includes a structure 100 of panels 1 or 69, or which are plated on the facade or cover of the building. In a simple embodiment, this deformable frame 75 includes two end plates 76 each carrying one end of the strip flexible.
Each of these end plates 76 cooperates, at each of its ends, with a lateral armature 77 deformable. Preferably, this frame lateral 77 has sections 78, for example fiberglass or carbon, articulated between them, and comprising, at the level of each articulation, means of recall Elastic designed to ensure and maintain the alignment of sections 78 enter them, when these last sections 78 are pushed into this position alignment, in particular resting on the lateral guides 61. It is so it is possible to thread in the guide means 61 an end armature 76 upper, with each side a first section 78, the other sections being folded over each other and forming a fagot at the operator.
This then unfolds a second section 78 on each side, the plate in the guide 61 in alignment with the previous one, and so on, goes up the whole of deformable frame 75, which takes a rectangular shape when it is finished.
The plating in the guide 61 of the last section 78 associated with the other armature lower end 76, ensures the power of the flexible sheet 203.
This deformable frame 75 can, thanks to the use of lightweight tubular materials, such used in fishing equipment or for the manufacture of antennas or masts, remain of a very low mass, of the order of one or a few kilograms, even for a large extended length of the flexible ply 203, for example a height facade of several floors.

21 In another variant embodiment, the flexible sheet 203 consists of several sections, each stretched over a defcrmable frame 85, designed to cooperate with such guides 61. This deformable frame 85, constituting another variant device 201 for fixing and energizing the flexible sheet, includes, as visible in FIGS. 24 and 25, two end fittings 86 wearing each one end of the flexible band 203. Each of these frames end 86 cooperates, at each of its ends, with a lateral reinforcement 87 elastically deformable. Thus, before threading into the guides 61, a substantially rectangular structure, but of which two sides are curved, under the effect of the tension of the flexible tablecloth, which bows the reinforcements lateral 87, as visible in Figure 24. When we put this structure in the 61 guides, these are dimensioned able to bear on these frames side 86 to straighten them, which further increases the tension of the tablecloth flexible, as shown in Figure 25. Just slide this structure in the guides 61 to set it up to the desired level. For facilitate dismantling and extraction of these structures, in particular to change the tablecloth 203, each frame 85 comprises at a first end, means 88, which are designed to cooperate with means drive complementary 89 equipping a second end of another frame 85 of the same type, as shown in Figures 26 and 27. The cooperation between means 88 and 89 can be articulated, for example with a finger or a pin cooperating with a bore or a complementary housing, or the like. This cooperation means 88 and 89 allows to form a chain, mobile in compression as well as in traction. Advantageously, the means 88 and 89 up sliding shoes in the guides 61. Preferably, means 88 and 69 are installed on either side of the flexible band 203, such than visible in the figures.
The superposition of several flexible sheets 203, as visible on the figure 18, allows, on the one hand, to play on the extent of the perforated surface, and else to play on the behavior in reflection or absorption of energy.
She allows, again, to change the appearance of the facade or cover.
It is still possible to arrange, as visible in the example of FIGS. 18 to 20, externally to the first perforated receiver 50, a panel translucent 60 such as glazing, polycarbonate or the like. In the case prefer of a polycarbonate panel 60, it can advantageously form the latter of to create one or more lateral guide means 61 such as gorges or the like, for guiding a flexible ply 203 constituting the first receiver perforated 50. In the case of a translucent panel 60 covering a box or a hollow panel 1 according to the example of FIG. 20, the guidance is done by means of sides 67 then includes the panel 60 to enclose the panel 1 or the box on which he relies. In the preferred application of a cladding structure completely modular, incorporating hollow panels 1 as described below.
above, or / and still of the caissons of the trade, in particular caissons in sheet metal, he is advantageous to design the translucent panels 60 also in form

22 Modular. In a particular embodiment, these panels include a first end 62 designed adapted to cooperate by interlocking with a second end opposed to the first end 62 of another panel 60 of the same type. In a economic realization, the panel 60 has a trapezoidal shape, whose bases are constituted by the ends 62 and 63, as visible in FIG.
folding polycarbonate along straight edges is easy, to achieve a such shape, supplemented by additional folds on oblique faces 68 of trapezium to constitute guides 61. Advantageously, a panel 60 is overlapped on the one below it, to avoid the weather penetration. This nesting nevertheless makes it possible to air passage between these two panels 60, which may be advantageous for to avoid the condensation.
The example of FIG. 18 comprises hollow panels 1, or / and caissons of the 69, which comprise at a first end 70 support means 71, designed to cooperate with receiving means 73 that includes a second end 72 another box 69 or another panel 1, located below him.
Naturally, the surface 74 of these panels 1 or boxes 69, turned towards the first medium A, can constitute a second receiver 51. It is also possible to improve the thermal behavior of this surface 74, by the application of a selective coating, such as black paint, treatment of surface, reloading, or the like. Figure 18 illustrates the case where the second receiver 51 is constituted by a condenser 110, in particular constituted also by a flexible sheet unwound in the inner channel 3.
In the case of flexible sheets 203 of great length, it is advantageous to stiffen, for example by arming them with whales such as fiber stems glass or similar, at regular spacing, for example one meter, and arranged parallel to the ground.

Claims (15)

1. Hollow panel designed to be attached to the structure of a building, and reactive to thermal radiation, especially solar, comprising, between a first designed face capable of being directed towards a first middle, and a second designed face capable of being directed to a second medium, at least one internal channel of fluid circulation, including air, extending between a first opening located at a first end edge, and a second opening located at a second end edge, said inner channel extending between on the one hand at least a first perforated receptor designed fit to be exposed to thermal radiation on the side of said first face, and on the other hand at least a second airtight receiver on the side of said second face and consisting of a condenser, wherein said first receiver and the condenser are constituted by a flexible sheet especially textile. 2. Panel according to claim 1, wherein the condenser constitutes means of heat exchange or / and means of energy accumulation and / or reflection means and / or means insulation. 3. Panel according to claim 2, wherein it comprises between the reflection means and said second face, isolation means. 4. Panel according to claim 1, wherein the first receiver or the second receiver can receive a coating comprising a titanium oxide TiO2 nanometric, or other catalyst capable of promote the transformation of volatile organic compounds known as VOCs in harmless elements, or CO to CO2, or NO to NO2. 5. Panel according to claim 1, wherein it comprises at minus an oblique opening, between said channel and said second face, which is sized to allow the passage of a portion less than the flow rate of fluid flowing in said channel. 6. Panel according to claim 1, wherein it comprises, at its first end edge, respectively at its second edge end, a first band, respectively a second band, having first support and guiding means, respectively second support and guiding means, designed to allow its stacking with another hollow panel of the same type, and a bearing surface and sealing respectively for the sealing juxtaposition of said first opening, respectively of said second opening, said panel, with said second opening, respectively said first opening, of a adjacent sign. 7. Panel according to claim 6, wherein it comprises, supporting said first and second faces, a structure four-sided peripheral where said first dart and said second bandeau are joined, at their ends, by a first and a second, lateral crosspieces, and said first headband, respectively said second strip, comprises a first surface support, respectively a second support surface, designed adapted to cooperate with means of strapping for closure and / or fixing said peripheral structure. 8. Panel according to claim 1, wherein the condenser is designed to be mounted in a substantially vertical plane, and comprises, on a first face designed adapted to be turned towards the solar radiation, a volume profile designed to maximize shade summer sun range under strong incidences compared to the normal of said second receiver, and to minimize the shadow of the sun winter with low incidences compared to the normal of the condenser. 9. Panel according to claim 8, wherein said profile volume contains a staggered juxtaposition of volumes in half drops of water whose bulging part is arranged on the ground side. 10. Panel according to claim 8, wherein it comprises, on its second face opposite to the first face, accumulation means which have a honeycomb structure designed to be suitable for contain an accumulator material and / or phase change material. 11. Panel according to claim 1, wherein it comprises a device for fixing and energizing, resting on a first bearing surface and a second bearing surface located on the and another of an intermediate surface, a flexible sheet forming the first receiver and / or the condenser. The panel of claim 1, wherein the surface intermediate is full. The panel of claim 11, wherein said device has at least one first stick and at least one second rod, each designed adapted to immobilize said flexible web to a first end edge, respectively to a second edge end device, said device comprising, at a first headband a first groove extending in a first direction longitudinally, and at the level of a second band a second groove extending in a second direction substantially longitudinal, said first groove and second groove each designed able to receive along its entire length said first stick or said second rod. 14. Panel according to claim 1, wherein it comprises a device for fixing and energizing a flexible sheet forming the first receiver and / or the condenser in the form of a frame deformable, having two end plates each carrying a end of said flexible sheet, each of these end plates cooperating, at each of its ends, with a lateral reinforcement elastically deformable which is designed able to cooperate with a bearing surface of a guide, for its recovery and increase tensioning said flexible sheet. 15. Panel according to claim 1, wherein it is arranged externally to the first perforated receiver, a translucent panel such than glazing or polycarbonate.