FR2796973A1 - SEALING ELEMENT AND USE - Google Patents

Abstract

The invention relates to a rigid three-dimensional sealing element for a facade having an upper surface (1a), a lower surface (1b), several sides, optionally having a variable section depending on the section plane, and having alpha angles and defined respectively between a vertical axis and the upper surface or the lower surface, said angle alpha always being obtuse and said angle Q being as desired obtuse, acute or right. The invention also relates to a use of this element for sealing a facade wall.

Description

SEALING ELEMENT AND USE

  The invention relates to a rigid three-dimensional sealing element for a facade and to a

use of this element.

  Rigid sealing elements of simple structure, of the profiled type, are already known which are fixed directly to a front wall by means of conventional mechanical fasteners, and which are then covered at least in part with a waterproof coating of

protection, such as a coating.

  Unfortunately the presence of such elements on the facade of a coated wall has the major drawback of making this wall permeable to moisture by the interruption of the protective coating which is

  disposed on either side of the sealing element.

  It is also known from document W089 / 02016 a sealing device whose purpose is to completely seal the slots (6) existing between successive facade or roof elements and inclined with respect to each other. This

  obturation is achieved by different watertight plans.

  The device of this document comprises a network of sealing parts of complex structures, each part comprising a lower part and an upper part. Such a device has the drawback of not being able to be applied easily and directly to the

  flat surface of a coated or uncoated wall.

  There also remains the need for a sealing element for a facade, of very simple structure and use, easy and quick to machine, which can be easily applied to a layer of wall covering such as a plaster, by fitting properly. the particular relief of the support on which it is applied, while also allowing the application on either side of the element of a waterproof wall covering, and this without any risk of stagnation or infiltration of moisture in the wall coated with plaster. The subject of the invention is therefore a rigid three-dimensional sealing element for a facade having an upper surface, a lower surface, several sides, possibly having a section which varies according to the cutting plane, and having angles a and D defined respectively between a vertical axis and the upper surface or the lower surface of the element, said angle a being always obtuse and said

  angle D being either obtuse, acute or right.

  Such an element has the advantage of preventing the stagnation of water in the various internal structures of the wall, and consequently its local deterioration, due to the downward inclination of the upper surface of the element which then incites water to come out of the internal structures of the wall by the action of

gravity.

  The element also has the advantage of allowing the possible application on the wall of a layer of wall covering, of the coated type, in the form of a viscous paste, before or after the application of an element.

rigid according to the invention.

  Finally another advantage of the element according to the invention

  is that it allows its installation very easily on a wall.

  The invention also relates to a use of the element as defined above for sealing a facade wall coated with at least one layer of plaster, said element being partially covered

by said coating layer.

  3 / The obtuse angles a and D can be identical or different. The element according to the invention may also comprise a tongue intended to adapt to the various irregularities of the wall on which it is applied. The element is preferably made of a material chosen from polyurethane foam, polystyrene foam, synthetic fibers chosen from rock wool, glass wool and / or natural fibers chosen from cotton, linen, wool, said fibers being agglomerated by wood chips. The element can also consist of

  different mixtures of these fibers.

  Said material can also be covered with a

  waterproof, grainy or smooth material.

  At least one side of the element according to the invention may comprise grooves possibly combined with a trellis arranged at least 3mm from the outer edge of the element and over all or part of the surface of

  the element intended to be applied to the wall.

  The element preferably has a geometric shape

  chosen from the parallelepiped, the pyramid.

  Element 1 can include the following dimensions: Height: from approximately 5mm to approximately 300mm, Width: from approximately 5cm to approximately 3m,

  Depth: from about 5mm to about 50mm.

  The obtuse angle can preferably vary between

around 95 and around 175.

  The acute angle can preferably vary between approximately 5

and about 870.

  The choice of angles is made so that the element, once applied to the wall, is suitably embedded and does not risk falling apart in whole or part of the wall, over time, for example due to the consequences linked to climatic variations. The wall covering applied all around the element can be in the form of a coating conventionally used in the building industry, such as hydraulic coatings permeable to water vapor, organic coatings which are very tight vis-à-vis water vapor. The element according to the invention can also be covered with an aqueous paint or with an organic paint and / or with a decorative coating of the plaster type or of the coated type. At least one side of the element may include grooves. The element may further comprise on at least one of the sides a trellis arranged at least 3mm

from the outer edge of the side.

  The element may be partially covered with at least one coating layer arranged in identical number or

  different on each side of the item.

  The element can be placed between different building bodies and different materials constituting the wall. Preferably, the element can be arranged on a line of intersection located between the front wall and a

  basement, or between a front wall and a window.

  The invention will now be described using the particular embodiments described below and

  which do not limit the subject of the invention.

  - Figure 1 shows a schematic three-dimensional view of a first variant of the element according to the invention arranged on the facade of a wall - Figure 2 shows a schematic three-dimensional view of a second variant of l element according to the invention, applied to a front wall, - Figure 3 shows a schematic three-dimensional view of a third variant of the element according

  the invention, applied to a facade wall.

  - Figure 4 shows a schematic side view of a fourth variant of the element of the invention. We can see from Figure 1, the rigid element of the invention which is designated as a whole by the reference 1. This element which is substantially of rectangular shape, is fixed directly to a wall 2 by means of mechanical fasteners such as screws, nails, lag screws and / or bonding compositions. The upper surface 1a of the element 1 forms an angle a with the wall 2 of approximately 130, while its lower surface 1b forms a right angle 1. The dimensions of element 1 are approximately as follows: Height: 10Omm Width: lm Depth: 3Omm

  Element 1 is made of polystyrene foam.

  The element 1 which is covered on either side with a hydraulic protective coating 3, partly protrudes from this coating with a length of approximately 5mm. The element 1 comprises a trellis 4 disposed about 15mm from the outer edge of the side of the element, the latter being intended to be fixed to the wall. The mesh allows better fixation when applying the coating to element 1, and therefore better resistance

in time.

  The element thus forms a relief pattern which may have

a decorative purpose on the facade.

  In Figure 2, the element designated as a whole by the reference 1, is fixed to the wall 2 by means of an adhesive and mechanical elements as mentioned above. This element 1 is made of polyurethane foam. The dimensions of this element are approximately as follows: Height: 200mm Width: 2m Depth: 50mm

  It is completely covered by an organic coating.

  The upper surface 1a of element 1 forms an angle a with the wall of approximately 100, and the lower surface

  lb forms an angle f of about 50 with the wall.

  To obtain a fixing of the coating on the element 1 of better quality, the latter comprises grooves arranged regularly over the entire upper surface and over the entire lower surface (not shown). The depth of the grooves 5 is approximately 1 mm. In Figure 3, the element 1 is substantially pyramidal in shape. It is made of agglomerated rock fibers. The upper surface 1a of element 1 forms an angle a of about 100 with the wall, and the lower surface

  lb an angle 3 of about 110 with the wall.

  Element 1 is applied using mechanical fastening means on the wall 2 covered with plaster 3, itself applied to the wall 2. The pyramidal shape of the element 1 makes it possible to decorate with an original relief the facade

from the wall 2.

  As can be seen in Figure 4, the element is arranged on the line of intersection existing between the wall 2 and a window 6. The side 7 of the element 1 applied to the wall 2 has the shape of a tongue which allows to apply 6 and against the wall 2 while correctly matching the shapes of each. Element 1 thus forms a seal against water at

  the gap between the wall and the window.

  The element as described above is obtained by means of a manufacturing and machining process

  classic in the building industry.

  Element 1 as illustrated according to one of the figures explained above clearly shows that it avoids stagnation of water in the internal parts of the wall thanks to the effect of gravity on the inclined sides

of the element.

  Of course, the invention is in no way limited to the embodiments described, which have been given only by way of example. In particular, it includes all the means constituting technical equivalents of

  means described as well as their combinations, if these

  these are executed according to the spirit of the invention.

R E V E ND I C AT I ON S

  1. Rigid three-dimensional sealing element for a facade having an upper surface (la), a lower surface (lb), several sides, possibly having a section that varies according to the cutting plane, and having angles x and P defined respectively between a vertical axis and the upper surface or the lower surface of the element, said angle a being always obtuse and

  said angle 3 being either obtuse, acute or right.

  2. Element according to claim 1, characterized in that the obtuse angles x and f are

identical or different.

  3. Element according to claim 1, characterized in that one of the sides forms a tongue (5) intended to adapt the element to

  different wall surface irregularities.

  4. Element according to claim 1, characterized in that the obtuse angle is between approximately 95 and 175, and in that the angle

  acute is between about 5 and 87.

  5. Element according to claim 1, characterized in that it has a height ranging from approximately 5 to 300 mm, a width ranging from approximately 5 cm to 3 m and a depth ranging

about 5 to 50 mm.

  6. Element according to one of claims 1

  to 4, characterized in that it is made of a material chosen from polyurethane foam, polystyrene foam, agglomerated natural and / or synthetic fibers and their mixture, said material being able to be coated with at least one material

grainy or smooth waterproof.

  7. Element according to one of claims 1 to 5,

  characterized in that at least one side comprises

grooves.

  8. Element according to one of claims 1 to 6,

  characterized in that at least one side comprises a trellis arranged at least 3 mm from the edge

outside of said side.

  9. Use of the element as defined according to

  one of the preceding claims to render

  waterproofs a front wall coated with at least one layer of plaster, said element being covered

  partially by said coating layer.

  10. Use according to claim 9, characterized in that the element is covered with at least one coating layer arranged in identical or different number on each side of the element. 11. Use according to claim 9, characterized in that the element is arranged between different bodies of the building and different

materials constituting the wall.

  12. Use according to claim 11, characterized in that the element is arranged on the line of intersection between a front wall

and a basement.

  13. Use according to claim 11, characterized in that the element is arranged on the line of intersection between a front wall

and a window.