FR2845710A1 - Sealing extrusion for edges of adjoining sandwich or composition roofing panels has rainwater collection and draining channel and supple lips - Google Patents

Abstract

The extrusion, made from rigid plastic or metal designed to be fitted into an edge groove in a sandwich or composition roofing panel, consists of a hollow strip (7) with a box-section cavity forming a rainwater collection and drainage channel (11). It has an opening (8) in the outer wall (10) of the channel with upper and lower angled guides (17, 14) for the rainwater. The lower guide is in the form of a flexible seal lip which, together with an additional parallel seal lip (15) beneath it, engages with matching seal lips on an adjacent panel's extrusion to prevent any water penetrating between the two panels.

Description

Device for the tight juxtaposition of panels and panels provided

  of such a device. The present invention relates to a device for the tight juxtaposition of panels exposed to runoff, for example to storm runoff. 5 The invention is advantageously but not exclusively applicable to the waterproof junction of sandwich panels or composite panels which can be used to produce insulating covers for verandas, terraces, roofs, balconies, loggias, galleries, gazebos, kiosks, etc., or cladding, advertising panels, insulating vehicle bodies, 1o insulating partitions, special floors, etc. The invention also relates to panels and more particularly sandwich panels / or composite panels provided with this device.

waterproof juxtaposition.

  Insulating sandwich panels of this kind comprise a core of rigid plastic foam, or a composite core, disposed between two rigid facings, metallic or otherwise, assembled to said core by lamination. It is known (EP-0.354.149) to assemble such panels juxtaposed by means of a joining gutter which is embedded, by means of its 20 opposite longitudinal sides, in a longitudinal groove formed in the edges two adjoining panels, so that the longitudinal opening of the gutter is oriented towards the outside and can thus collect and drain the water which infiltrates between the panels. However, the seal obtained by means of this device is rather poor due to the fact that it is hardly possible to maintain perfectly sealed contact between the external surfaces of the gutter and the walls of the groove made in the rigid foam core of the panels, over the entire length of said junction gutter which may be

important (several meters).

  Also known (FR-2,710,374) is a waterproof jointing device for a sandwich panel comprising, on the one hand, edge covering profiles embedded in longitudinal grooves formed in the sides 2 for assembling the panels, these profiles are provided with a longitudinal groove, the bottom of which constitutes a drainage channel, and, on the other hand, a gutter-shaped joining profile which is fitted via its longitudinal sides into the longitudinal grooves of the profiles edge trim fitted on the 5 adjacent sides of two contiguous panels, so that its longitudinal side faces lead, respectively, to the entrance of the upper longitudinal opening of the drainage channels. This device creates a double

  effective barrier against water infiltration at the junction of the panels.

  The implementation of this waterproof junction method of composite panels 10 however has some drawbacks, in particular: - the replacement of a damaged panel requires, except in the case of an edge element, the dismantling of a more or less important number of panels to reach the one to be replaced; moreover, this replacement is made difficult if the 15 assembled panels have bent somewhat since their installation; when the panels have a relatively long length, for example of the order of 7 meters, three people are necessary to assemble them, two people being placed at the ends of the panels and the third at an intermediate location; - it is necessary to store two types of elements (panels and

junction profiles).

  The object of the invention is in particular to make available to

  installers a sealed panel joining device, devoid of the aforementioned drawbacks.

  According to the invention, this objective is achieved thanks to a profile comprising a hollow body intended to allow the embedding of said profile in a groove formed in an edge of a panel, this body having a longitudinal lateral opening provided above a pipe wall defining, in the lower part of the body, a recovery and drainage channel, said profile -3

  comprising at least one longitudinal sealing lip executed in a flexible material and integral with the free upper edge of said wall, this flexible sealing lip being inclined in the direction of the channel formed in the body of the profile and its upper portion oriented upwards extends outwards beyond the plane in which the external face of said profile is located.

  When two profiles thus joined are joined, the upper part of the flexible sealing lip of one is pressed against the sealing lip of the other, which makes it possible to create a seal with two slopes opposite effectively opposing the passage of water which, in the event of infiltration, is directed into the channels of said sections and conveyed towards one of the ends of the latter. The invention also relates to panels whose junction sides

  are provided with the profiles described above, arranged so that the flexible sealing tongue or tongues of said profiles extend beyond the plane in which the edge face of said panels is located.

  More specifically, the invention relates to sandwich panels comprising a core of rigid plastic foam, or a composite core, disposed between two rigid facings, the assembly sides of these panels comprising a longitudinal groove constituted by a 20 bleeding in said soul and in which is embedded the body of the

previously described profile.

  It is understood that the sealed juxtaposition of the panels according to the invention does not require the use of any assembly profile intended to collect any water infiltration and to evacuate it towards the outside, while making it possible to obtain a perfect sealing between the adjoining panels. This absence of a junction profile generates several interesting advantages: - the panels can be installed easily and quickly by only two people since it suffices to juxtapose them and fix their ends, by screwing, on transverse metal beams; -4 - it is possible to dismantle any of the panels from a cover or other similar surface, for example to replace a damaged panel, without first dismantling all of the panels arranged on one of the sides of the latter, so that this replacement can be carried out quickly and inexpensively; - simplification of inventory management; - a reduction in the cost of making insulating covers for verandas, terraces, roofs, loggias, etc.

  The above objects, features and advantages, and others, will become more apparent from the following description and the accompanying drawings in

  which: Figure 1 is a perspective view of a section of profile according to the invention.

  Figure 2 is a cross-sectional view of this profile.

  Figure 3 is a perspective view of two portions of panels

sandwich according to the invention.

  Figure 4 is a cross-sectional view of these portions of

panels, before juxtaposition.

  Figure 5 is a cross-sectional view similar to Figure 4 and 20 showing the panels juxtaposed in a sealed manner.

  Reference is made to said drawings to describe an advantageous example, although in no way limitative, of producing the profile and panels according to the invention, the latter being generally rectangular and being able to have a length of

several meters.

  In the description which follows, words such as "superior" are used,

  "lower", "external", "front", "posterior", ..., by considering the position of the profiles when they are integrated laterally into plates or panels called -5 to constitute covers of verandas or other parts of building such

  use constituting the most common application of this type of panel.

  There is shown, in the drawings, a very interesting application of the invention to the sealed assembly of panels 1A, 1B of the "sandwich" type 5 mainly consisting of a core 2 made of rigid plastic foam such as polyurethane foam , polyvinyl chloride foam, extruded polystyrene, etc., placed between two skins or rigid facings 3, 4, for example formed by steel or aluminum plates lacquered or covered with any other suitable coating. The core 2 could also be made of a composite material, for example formed from several layers of insulating materials while the facings 3, 4, could be made in

  any other suitable rigid material such as reinforced polyester or the like.

  In the edges of the assembly sides of the panels 1A, 1B, a groove 5 is formed, preferably having a rectangular or square section. Given the most common mode of use of the panels, the grooves 5 are generally formed in the opposite longitudinal edges of said panels. Advantageously, the grooves 5 are formed by grooves made in the core 2 of the panels 1A, 1 B. It is emphasized, however, that the profiles according to the invention could be embedded and fixed in grooves made in the sides of other types of composite or non-composite panels, such as aluminum panels or

wooden panels.

  In each groove 5 is embedded a edge covering profile 6 according to

  the invention, allowing the waterproof juxtaposition of the panels.

  With the exception of the flexible lips described below, this profile can be made of any suitable rigid plastic material such as chloride of

  polyvinyl (P.V.C.), or aluminum or other unalterable metal.

  The profiles 6 comprise a hollow longitudinal body 7, preferably of rectangular or square section, by means of which they are embedded in the lateral grooves of the panels 1A, 1B, -6 In its upper part, the hollow body 7 has a longitudinal opening 8 opening into a longitudinal groove 9 delimited by the upper wall 7a, the rear wall 7b and the bottom 7c of said body, and by a longitudinal wall of pipe 10 extending below the opening 8. From the 5 so, a channel Il for recovery and drainage of any infiltration

  of water, is located in the lower part of the body 7.

  In front of the hollow body or embedding part 7, the profile comprises

  a longitudinal upper support wall 12 oriented upwards and a lower longitudinal support wall 13 directed downwards, these walls 12 and 13 being arranged in the same plane.

  When the profile 6 is embedded in the groove 5 of the core 2 of a panel, the walls 12 and 13 are pressed against the upper and lower edge surfaces, respectively, of said core. The facings 3 and 4 have edges 3a, 4a, folded and folded against the upper longitudinal walls 12 and lower 15, respectively, profiles which are thus firmly

  held in place in groove 5, without bonding.

  According to the invention, the profile comprises at least one longitudinal sealing lip 14 executed in a flexible material and integral with the upper edge of the pipe wall 10. This flexible sealing lip 14 is inclined in the direction of the channel 11 and its front part 14a oriented upwards extends outwards beyond the plane PP in which the external face of said profile is located, constituted by the external face 12a and 13a, respectively, of the walls

  longitudinal 12 and lower 13.

  Preferably, the flexible lip 14 also comprises a rear part 25b directed downwards and penetrating into the channel 10.

  Advantageously, the profile comprises at least a second longitudinal sealing lip 15 disposed below the lip 14. This second lip is also made of a flexible material, preferably

  identical to that used to form the lip 14.

  -7 The lip 15 is attached to the lower part of the pipe wall; it is oriented upwards and extends outwards also beyond the P-P plane. It defines, with the internal face of the pipe wall 10, a small complementary drainage channel 16 extending over the entire length of the profile. At rest, the portion of the lips 14 and 15 which extends outside the plane

  P-P, forms an angle of the order of 500 with said plane P-P.

  The lips 14 and 15 can be made of any suitable flexible plastic or elastomer and attached to the rigid parts of the profile by any suitable method. For example, they can be obtained by a co-injection or bi-material injection molding process, known per se, during the

manufacture of profiles.

  According to another advantageous characteristic arrangement of the profile according to the invention, it comprises, at its upper part, a longitudinal inclined flap 15 17 penetrating into the groove 9 of said profile. It is thus located above and at a distance from the upper lip 14 and it delimits, with

  the latter, the opening 8 for access to the groove 9 and to the channel 11.

  This deflecting flap has an inclined trickling face 17a connecting with the external face 12a of the upper support wall 12 of the profile. It forms, with said wall, or with the plane P-P, an angle which can be

around 45.

  The joining sides of the panels according to the invention are provided with a profile 6 as described above, embedded in a groove of suitable section that these sides have. Said profiles are positioned so that their lip 14 or their lips 14 and 15 extend outwards beyond the plane P'-P 'in which the edge surfaces of the panels are located, these surfaces being formed, according to the example illustrated, by the external face 3a ', 4a' of the folded and folded edges 3a, 4a, respectively, of the facings 3 and 4 of the panels (FIG. 4). -8 According to the interesting embodiment shown, the panels comprising application of the previously described profile are sandwich panels 1A, 1B of which two opposite longitudinal sides are provided, over their entire length, with profiles 6 embedded in a groove 5 practiced in the core 2 of said panels. It will be understood that when the sides of two adjacent panels 1A, 1B are juxtaposed (FIG. 5), the flexible lip 14 or the flexible lips 14 and 15 of the junction profiles are pressed against each other, so that they deform and result in a significant increase in their contact surface, thereby creating a double slope seal, capable of opposing

  effectively at the passage of water between the adjoining panels.

  During the installation of the panels 1A, 1B ..... on the supporting structure (not shown), a longitudinal gap 18 of the order of a few millimeters (for example 4 millimeters), allowing the expansion of said panels, is formed between the edges of edges 3a ', 4a' adjacent to the latter. The lower portion and, above all, the upper portion of the gap 18, can be closed by a seal, for example constituted by a bead of flexible mastic or by a seal made of any elastomer suitable for the conditions of use. In the event of slight infiltration of water into the gap 18 despite the presence of a ridge seal or in the event of damage to such a seal, the droplets trickle onto the edge surface 3a 'or 4a', then on the surface of the deflector flap 17 and fall into the drainage channel 11 allowing their routing by gravity to the lower edge of the roof or other covering. If the infiltration is greater, water falls on the double seal

  slope 14-14 and streams towards canal 11 where it is collected.

  In the event that the double slope joint 14-14 does not prove to be fully effective over its entire length, the water passing through said joint will fall on the underlying double slope joint 15-15 and will flow into the lower channels 30 16 allowing it to be conveyed, by gravity, to the edge of the roof or other covering. -9

  It is understood that the shoulder of two panels 1A, 1B according to the invention makes it possible to obtain a double barrier for sealing with water or other liquid flowing on the external surface of the sets of juxtaposed panels 1A, 1B, .. .

- 10

Claims (7)

  1. Edge covering profile for the tight juxtaposition of panels, comprising a hollow longitudinal body (7) intended to allow the embedding of said profile (6) in a groove formed in an edge of the panel, this hollow body (7 ) having a longitudinal lateral opening (8) provided above a pipe wall (10) delimiting, in the lower part of the body, a recovery and drainage channel (11), characterized in that said profile (6) is provided with at least one longitudinal sealing lip (14) made of a flexible material and integral with the upper edge of said pipe wall (10), this flexible sealing lip being inclined in the direction of the channel (11) formed in the bottom of the body (7) of the profile and its upper portion (14a) oriented upwards extends outwards beyond   of the plane (P-P) in which the external face (12a-13a) of said profile is located.   2. Profile according to claim 1, characterized in that the flexible sealing lip (14) comprises a rear part (14b) directed downwards and   entering the drainage channel (11).   3. Profile according to one of claims 1 or 2, characterized in that it   has at least a second longitudinal sealing lip (15) made of a flexible material and arranged below the lip (14)   inclined towards the drainage channel (11), this second lip (15) being oriented upwards and extending outwards beyond the plane (PP) in which the external face (12a-13a) is located of the profile, said second sealing lip (15) delimiting a second drainage channel (16) extending over the entire length of said profile.   4. Profile according to any one of claims 1 to 3, characterized in that   that it comprises a deflector flap (17) inclined downwards in the direction of the groove (9) of the profile (1), said deflector flap (17) being arranged at a distance and above the sealing lip (14 ) inclined towards the groove (9) and delimiting, with said lip (14), the opening (8) for access to said groove (9). - 1I1   5. Profile according to any one of claims 1 to 4, characterized in that   that it comprises, in front of the hollow body or embedding part (7), a longitudinal upper support wall (12) oriented upwards and a lower longitudinal wall (13) directed downwards, these walls (12 , 13) being arranged in the same plane (PP). 6. Panels called to be exposed to runoff and juxtaposed with   sealingly, characterized in that the side or sides of the junction of said panels is / are provided with a profile (1) according to any one of claims 1 to 5, embedded in a groove that (s) present (s) said 10 side (s), said profile being positioned so that its longitudinal lip (14)   or its longitudinal lips (14, 15) extend (s) outward beyond the plane (P'-P ') in which the edge surfaces (3a', 4a ') of the panels are located. 7. Panels according to claim 6, comprising a core (2) of rigid foam of plastic material or made of a composite material, disposed between two rigid facings (3, 4), characterized in that the profiles (1) are embedded in a groove in the sides of the core (2) and in that the edges (3a, 4a) of the facings (3, 4) are folded and folded against the   upper (12) and lower (13) longitudinal walls of said sections.