FR3073873A1 - COMPOSITE ROOF PANELS FOR FLOWING WATER - Google Patents

Abstract

The present invention relates to sandwich-type composite panels comprising an outer face (1) intended to be exposed to a climatic environment and another so-called inner face (2) facing towards the interior of a space to be protected, and comprising at least one insulating core (34,3,4); according to the invention the outer (2) and inner (1) facing have an angle (11) between them greater than zero.

Description

The present invention relates to composite roofing panels to not only ensure rigidity, thermal and / or sound insulation of a composite panel of the sandwich type with insulating core, but also to ensure the flow of water.

The invention is applicable when using rigid sandwich panels linked together by a junction system or else taken up by metal clamping profiles, for the production of flat, horizontal or inclined, insulating roofs, verandas, house, balconies, kiosks, galleries, modular buildings, etc.

Roof sandwich panels generally consist of a more or less rigid core of organic or mineral material (having thermal and / or phonic functionalities, lightness, rigidity, etc.), placed between two parallel rigid composite, metallic facings or minerals whose exterior or superior facing is intended to be exposed to a climatic environment (thermal such as heat and cold, and bad weather such as rain, wind and snow) and to noise, and the other interior facing, or lower, is intended to constitute an interior ceiling of the space to be protected and then having aesthetic, light functions, etc.

It is known that such insulating panels, which are arranged horizontally or with a slight slope to form a roof, are interconnected by a joining system or else taken up by metal clamp profiles, these so-called joining systems being parallel to the faces. exterior and interior; but even when the slope has a slight inclination, the water cannot flow sufficiently in the junction systems, which results in an accumulation of water on the roof which can create water leaks at the level of these same junction systems and generate oxidation phenomena of the exterior facing in contact with standing water.

To overcome this drawback, it is known from patent FR 2 996237 that the edges of the composite panels, comprising a core disposed between two rigid interior and exterior facings, may have a groove configured to receive a joining device for assembling said panels. roof between them, and that, this junction device forming a gutter, the groove is inclined relative to the outer face of the panel, then allowing the flow of water in this junction device, even in the case of roofing flat horizontal or low inclination.

Unfortunately this device is mediocre despite this inclined gutter, because in the case of a horizontal or very low slope roof, so that the interior facing intended to constitute an interior ceiling of the space to be protected is almost horizontal for aesthetic reasons, water on the panel stagnates and can, on the one hand at its two ends, drip inside the room, and on the other hand cause oxidation phenomena of the exterior facing in contact with standing water; moreover in the majority of cases the water can also go up even inside the room, of the veranda and create sealing disorders.

This problem, when the panels are perfectly horizontal or with a very slight slope (for the reason explained above), can be even more critical during a snowy episode, because indeed the exterior facing has no slope (or with very slight slope) the snow accumulates and cannot fall from the roof, which can then be very dangerous because an excess of weight of snow can destroy the panels but also the structure of the veranda or the room and thus have dramatic consequences .

The present invention thus aims to remedy at least substantially the drawbacks mentioned above and to make available to users panels for making roofs whose inner faces constituting the ceilings are horizontal or of very low inclination, and to ensure , despite this, a perfect flow of water or snow on their outer face.

Such an objective is achieved by a composite panel, of the sandwich type, comprising at least one insulating core disposed between two rigid interior and exterior facings, and such that the so-called exterior and interior facings, according to the invention, are not parallel to each other and form an angle greater than zero degrees between them, and is preferably greater than 0.5 degrees while being less than 9 degrees. This insulating core can be single or superimposed with at least one other insulating core, and having thermal, acoustic properties, etc., such as a foam of expanded or extruded polystyrene, polyurethane, polyethylene terephthalate or any other organic foams with open or closed cells, or elastomers, or any fibrous or cell-based mineral products such as rock wool, glass wool, etc.

Another characteristic arrangement of the invention is that the at least insulating core comprises on each of these lateral faces, perpendicular to its upper and lower faces, at least one longitudinal groove capable of receiving a joining device for assembling said roofing panels between them, and drainage of water by a form of gutter of the junction system, and that this groove is then parallel to its upper face and to the external facing, and therefore not inclined with respect to the latter unlike that described and claimed in patent FR 2 996237.

The main characteristic of the invention, namely the angle greater than zero degrees (and preferably greater than 0.5 degrees while being less than 9 degrees) between the interior facing and the exterior facing, is obtained by at least one insulating core having a variable thickness and continuously over its entire length, which gives a slope and an inclination to the outer facing to facilitate the flow by gravity of rain and snow, while keeping the inner facing perfectly horizontal to keep the interior aesthetics of horizontal flat roof ceilings.

Another characteristic arrangement of the invention is that the panel comprises at least two superposed insulating cores and which have at least one of the properties among those of thermal, acoustic and sealing insulation:

one or the first of which is of variable thickness, that is to say has an integrated slope thanks to its upper face inclined relative to its lower face, to give the desired inclination to the external facing, this core being in one piece or capable of consist of sub5 sets parallel to each other while giving the slope.

In the case of these insulating sub-assemblies, called insulating blocks of elongated shape, of variable thicknesses in the direction of their longitudinal shapes, these blocks thus integrating a slope are spaced apart from each other by a certain distance (in the direction perpendicular to their longitudinal shape), and allow to create an air volume, which allows to have a natural ventilation inside the panel and thus allows an even better thermal insulation by this natural ventilation, and also reduction of the bimetallic strip effect.

of varying thicknesses, constituting mechanical systems integrated in the

These insulating blocks, the insulating core are panels, profiles, and are made up of a series of parts made of organic material (composites, plastic, foam, metallic (aluminum, rock, glass wool, etc.). , and having a difference in thickness between their ends to give

The desired angle between 0 and 9 degrees between the upper facing and the inner facing.

of which at least one other core known as the second, disposed above and / or below the core or of variable thickness, is parallelepiped.

and when the second core is placed on the first, it includes the said grooves on its lateral faces for the junction system, and making it possible to always have this parallelism of these grooves with the external facing to also facilitate drainage, flow rain.

And finally another characteristic of the invention is that the composite panel is made up of metallic exterior facings such as aluminum, steel, etc., or of organic material such as PVC, polyethylene plastics, ABS,

ABS / PMMA

ABS / ASA, polycarbonate or any other plastic material.

Thanks to the above features of

1'invention, it is possible for the sandwich roof panels in the case of verandas for example, that we can combine two characteristics, namely a slight inclination or zero greater inclination of the exterior facing, sufficient to ensure a perfect flow of rain and snow, but also by the volume of air created between the insulating blocks, to allow natural ventilation of the panel in order to further improve its thermal insulation performance and reduce the bimetallic strip effect .

The characteristics and advantages above, and others still, will emerge more clearly from the description which follows and from the appended drawings in which:

Figure 1 is a side view of an example of a composite panel according to the invention, with a single insulating core.

Figure 2 in a perspective view of the panel of Figure 1.

Figure 3 is a longitudinal sectional view of a second example of a composite panel according to the invention, with three superimposed insulating cores.

Figure 4 East a perspective view of same panel that in the figure 3. Figure 5 East an enlargement of a panel corner according to the figure 4. Figure 6 East a perspective view of 1'assemblage

of two panels according to Figures 3 to 5.

FIG. 7 is an enlargement of the assembly part of the panels of FIG. 6.

Figure 8 is an enlargement of the system or connection key of Figure 8 between the assembled panels as shown in Figures 6 and 7

FIG. 9 is a perspective view showing another system for integrating an angle for the core of variable thickness which is thus composed of a series of blocks, of variable thickness and parallel to each other,

The composite panels comprise at least one core (34, external rigid facing (1) form an angle (11) greater than preferably greater than 9 degrees, and therefore not parallel to each other.

next

1'invention

3, and, and these two zero degree degree while in between being facing

Figure 1 illustrates such that the interior facing exterior facing (1) with respect to the horizontal, and in order to easily allow the flow of cases of rainwater which is them, lower and (2) are and the meanwhile an angle (11) sufficient inclination and or performance of the snow.

On this sealing performance, FIG. 1, the thermal, acoustic insulation core, includes a groove (7) in the case of self-supporting panels for receiving a junction system for the flow of rain. In the case of panels taken between clamp profiles, this groove (7) is not necessary.

Figure 2 in a perspective view comprising a core (34) disposed between two rigid facing exterior (1) and interior (2), the exterior facing (1) and interior (2) are metallic or in any organic material and form a angle (11) linked to the variable thickness of the insulating core (34). There is also shown a groove (7) in the insulating core (34) parallel to the outer facing (1) thus generating the same angle (11) with the inner facing (2) in order to allow a gravity flow of rainwater or the snow.

Figure 3 is a longitudinal sectional view showing several cores (3, 4, 5) arranged between two rigid facing inside (2) and outside (1) also having an angle (11), this angle being given by the insulating core (4) having a variable thickness, progressive and sufficient to allow giving an angle (11) sufficient for the flow of rain. The core (3) which is located under the outer facing (1) has a groove (7) for receiving a junction system for the flow of rain, and this groove (7) of the insulating core (3) is parallel to the outer facing (1) and thus has a slope (11) relative to the inner facing (2) in order to also facilitate the flow of rain. In a variant it is possible to also add in the lower part against the interior facing (2) at least other parallelepipedal insulating cores (5) having other functionalities such as thermal, acoustic, flatness, etc. Also in another variant it is possible to add one or more acoustic coatings (6) to the exterior facing (1) for absorbing the noise of the impact of rain.

Figure 4 is a perspective view of the same panel having several cores (3, 4, 5) disposed between two rigid facings inside (2) and outside (1) having for the core (4) a variable thickness to give a slope to the panel to facilitate the flow of rain and the sliding of snow, this slope generated by this variable thickness of the insulating core (4) gives an angle (11) with the interior facing (2). The parallelepipedal insulating core (3) integrates a groove (7) on each side of its side walls and is located on the insulating core (4), and due to the angle (11) generated by the variable thickness of the core (4) the groove (7) is parallel to the outer facing (1).

Figure 5 is a zoom of the panel assess the variable thickness of the core the groove (7) in the core external facing (1) parallelepiped (5) integrating different acoustics, flatness, on the external facing (1) acoustic properties at noise

The counter allowing better (4) but also which is parallel to the represented also the core the interior facing (2) functions such as thermal, etc., and as well as an exterior coating (6) (1) for the improvement of the impact of rain.

Figure 6 is a perspective view of the assembly of two panels (8) and (9) by the junction system (10) or junction key incorporating a shape of gutter, U, to ensure and facilitate the flow rainwater, and the groove (7) ensures this sealing and the holding of the junction system (10), thanks to a certain tightening between this groove (7) in the insulating cores (3) and the junction system (10) , and allows this system to be perfectly sealed.

Figures 7 and 8 are zooms of Figure 6 showing the groove (7) in the insulating core (3) between two panels (8) and (9) configured to receive a junction device (10), parallel to the facing exterior (1), playing the role of a gutter to facilitate the flow and evacuation of rainwater. This joining device is parallel to the outer upper facing (1) and has the same angle as the latter with the inner lower facing (2).

FIG. 9 is a perspective view showing another system for integrating an angle (11) by the insulating core of variable thickness in the panels (8) and (9), this median insulating core in the case shown of three superimposed cores (5, 12, 3) having thermal, acoustic and sealing insulation performance are made up:

- a parallelepipedic core (5) against the interior facing (2),

- an insulating core made up of several blocks (12) of elongated shape, of variable thickness in the direction of their longitudinal shape, thus integrating a slope (11) and spaced apart, in the direction perpendicular to their longitudinal shape, from a certain distance making it possible to create an air volume (13) which provides ventilation inside the panel making it possible to gain in terms of thermal insulation performance by this natural ventilation and to reduce the bimetallic strip effect. These insulating blocks (12) are mechanical systems integrated into the panels, and have a difference in thickness between their ends to give the desired angle (11) between the upper facing (1) and the inner facing (2). . These mechanical systems integrated into the panels are profiles, and consist of a series of parts made of organic material (composites, plastic, foam, etc.) or metallic (aluminum, steel, etc.), or minerals (wool of rock, glass wool, etc.

another core disposed above the core or insulating blocks of variable thicknesses, comprising on each of its faces, perpendicular to its upper and lower faces, at least one longitudinal parallel to its upper and parallel face suitable for receiving a joining device (10), for assembling said composite panels (8) and (9) therebetween, and for draining water.

This angle (11) can also be obtained, as a variant of the insulating blocks (12), by mechanical systems integrated in the panels, profiles, and consist of a series of parts made of organic material (composites, plastic, foam, etc.) or metallic (aluminum, steel, etc.), or minerals (rock wool, glass wool, etc., or any other mechanical system with a difference in thickness between their ends to give the angle (11) required between the upper facing (1) and the inner facing (2) to allow the flow of rain in the case of flat roofs and thermal ventilation of the panel between the spacings and the air volume (13 A system of grooves (7) in the core (3) has also been shown in order to increase the sealing and junction performance between the panels (8) and (9).

Reference is made to said drawings to describe an advantageous, although in no way limiting, example of the method and the device according to the invention.

There is shown in the drawings, a very interesting application of the invention for sandwich panels mainly consisting of single insulating core (34) or multiple in this case the core (4) or insulating blocks (12) , which have a variable thickness at their ends and thus form an angle (11) to allow a flow of rain.

These single (34) or multiple (3) insulating cores have one or more grooves (7) and can receive a junction system (10) for the flow of rain.

These insulating cores (34) or multiple in this case the core (3) with one or more grooves (7), are parallel to the outer facing (1) and are located under the latter.

By the angle (11) formed by the insulating cores (34) and (4) or insulating blocks (12) of variable thickness at their ends, the outer facing (1) therefore has a slope (11 ) relative to the interior facing (2) and this also to facilitate the flow of rain, which allows for flat roofs with an interior facing (2) horizontal to always maintain a sufficient slope (11) for the evacuation of rain or snow.

Claims (10)

at least siding Composite panel a rigid insulating core of which a “sandwich one says upper” type comprising between two or outside (1) is intended to be exposed to a climatic environment and the other said lower or inside (2) is intended to constitute a interior ceiling of a space to be protected, characterized in that the so-called exterior (1) and interior (2) facings are non-parallel and form an angle (11) between them greater than zero degrees. 2. Composite panel according to claim 1, characterized in that the angle (11), greater than zero degrees, between the interior facing (2) and the exterior facing (1), is obtained by the at least insulating core (4 , 34) which has a variable thickness and continuously along its length. 3. Composite panel according to claim 2, characterized in that it comprises at least two insulating cores (3, 4) superimposed, one of which is of variable thickness (4) and at least one other parallelepipedic core (3) is disposed above the variable thickness core (4). 4. Composite panel according to any one of claims 2 and 3, characterized in that one of the insulating cores (3, 34) comprises on each of its faces, perpendicular to its upper and lower faces, at least one groove ( 7) longitudinal parallel to its upper face and parallel to the external facing (2) and capable of receiving a joining device (10), for assembling said composite panels together, and for draining water. 5. Composite panel according to any one of claims 2 to 4, characterized in that it comprises at least three insulating cores (3, 4, 5) superimposed, one of which is of variable thickness (4), and at at least two other cores, one (3) disposed above and the other (5) below the variable thickness core (4), and that these two other cores (3, 5) are parallelepiped. 6. Composite panel according to any one of claims 1 to 5, characterized the insulating core (34,4) of variable thickness and continuously over its length, consists of several blocks (12) of elongated shape, of variable thickness in the direction of their longitudinal shape, thus integrating a slope (11) and spaced apart, in the direction perpendicular to their longitudinal shape, by a certain distance making it possible to create a volume of air (13). 7. Composite panel according to claim 6, characterized in that the blocks (12) constituting the insulating core (34,4) are mechanical systems integrated in the panels, and having a difference in thickness between their ends to give l 'angle (11) desired between the upper facing (1) and the inner facing (2). 8. Composite panel according to any one of claims there 7, characterized in that the facings (1,2) are metallic. 9. Composite panel according to any one of claims there 7, characterized in that the facings (1,2) are made of any organic material. 10. Composite panel according to any one of claims 1 to 9, characterized in that each insulating core (34, 3, 4, 5, 12) has at least one of the properties among those of thermal, acoustic insulation, 5 d sealing.