EP2157253B1 - Ventilation element for joints - Google Patents

Description

The invention relates to a joint ventilation element for double-shell masonry, for example, for a two-shell masonry with a superior facing masonry of clinker.

Two-shell masonry from a load-bearing wall, such as concrete, sand-lime brick, aerated concrete blocks or wooden stand construction have prefaced a brickwork with intermediate air layer. Further, in the space still insulation may be provided, which may for example consist of wool or other insulation.

The intermediate layer of the masonry requires a rear ventilation in order to prevent mold or moisture damage, in particular to the insulation. This ventilation is realized by released horizontal joints in the masonry.

Through these horizontal joints, air can penetrate into the air layer of the masonry, circulate and leave it again after flowing through the layer of air. Leaving the air can be done by further horizontally released joints or even by vertical and / or horizontal joint openings, for example in the rafter passages or on the roof connection.

The problem here is that the open released not grouted joints provide access for insects, vermin, rodents or the like, so that this represents a risk to the building fabric and / or health. But also dirt accumulations can form here, which can completely prevent the ventilation. For these reasons, these not grouted joints are provided with appropriate joint ventilation elements.

State of the art

From the prior art different joint ventilation elements are known to close the free, not grouted horizontal joints. For this purpose, prefabricated plastic mesh, which have a width and height dimension defined on the basis of mass production, have a grid dimension, these dimensions being present in different standard sizes. These dimensions correspond to the standard joint widths and heights.

For example, is from the AU 762 230 B2 protection against insects and vermin, which can be introduced into corresponding drainage holes in buildings, wherein its width and height is greater than the dimensions of the drainage holes and the material has a certain flexibility, this element according to the embodiments of the invention being formed with two levels which are connected to one another in order to close the drainage holes safely.

Next is from the US 4,102,093 B an insect control system for buildings in which a flat grid element is pressed by means of a plug-in tool from the outside into an open ventilation gap of intent masonry, so that the grid is arched into the open ventilation gap of the masonry directed inward.

problem

A problem with the known embodiments is that the joint ventilation elements used in the prior art are not flexible in the size adjustment in both the horizontal, as well as in the vertical direction, namely height and width. In particular, a shortening or narrowing of the joint ventilation elements is not provided and even one would do so would result in an unsightly completion of the masonry.

Similarly, the size of the joint is inferior to a building fluctuations, as often brick several masons at the same time.

Furthermore, due to the design, it is not possible to realize with the known in the art joint ventilation elements longer joints, for example in rafter passages, as they are not provided for such a measure, and also due to the countless heights and widths of the savings are not usable because an adjustment is not already considered for optical reasons.

task

The present invention has for its object to provide a use for a joint ventilation element. the structurally simple is particularly easy to adapt to the conditions, such as height and width of the joint openings, low maintenance and durable and also subject to low wear, in particular, should also be easy to use, so that it is easy to install, in particular is placed on a simple adaptability on the site value.

solution

This object is achieved with the use of a joint ventilation element according to claim 1.

The fact that the entire joint ventilation element consists of a continuous grid, it is possible to close the released joint opening in the simplest way. For this purpose, the grid is introduced into the joint, so that create the cheeks on the laterally delimiting clinker bricks. In this case, the grid during the Einbringvorganges is easy compressed and simply introduced. Due to the tension, the grille holds securely in the released joint opening of the masonry. The grid has a variety of restraining stops due to its surface. which can connect very well with the surface of the clinker. An independent slipping can be effectively prevented.

Because the grid is made of a metal, it is more robust against corresponding mechanical influences from the outside. Damage of any kind due to mechanical effects does not immediately lead to the breaking or knocking out of the joint ventilation element.

To design the joint ventilation element for the life of a house, the metal is a stainless steel preferably V2A. Since stainless steel does not rust and is durable, it is preferable to use stainless steel as the metal.

Because the grille is bendable, it is easy to squeeze, bend and modify by hand. Depending on the design of the joint in the width, the height or even the depth, for example in the presence of residues of mortar within the otherwise released joint, the joint ventilation element can be easily adjusted.

Due to the fact that the grid can be cut and / or cut in a non-cutting manner, it can easily be cut in with a pair of scissors, cut off, namely cut or chamfered. For this it is sufficient to take a simple pair of scissors.

Because the joint ventilation element has a first, upper end and a second, lower end, wherein the cheeks are cut at one or both ends in each case from the outside to the first and / or second end, the joint venting element can be left free to be closed Lever in joint. You can put the joint ventilation element on the upper or lower edge and then insert it. For this purpose, it is then inserted precisely to the end position within the joint.

Characterized in that the joint ventilation element has a first, upper end and a second, lower end, wherein at the first and / or at the second end, a third cheek or a third and fourth cheek can be arranged, can also be closed freed joints in a Übersockelungsschicht with be provided a completely occlusive grid joint element. In the case of an overfill layer, the next layer of clinker bricks is bricked up on an existing layer of clinker bricks to the outside, so that an offset or protrusion is created. This creates a gap when a conventional joint ventilation element is used.

According to the method, the joint is first cleaned and then measured for the introduction and adaptation of the joint ventilation element. There is the right choice of an approximately matching invention joint ventilation element in a standard size. It takes place the adaptation to the joint with too large joint element by cutting and / or Shortening with scissors. Of course, shortening or cutting in / out is not necessary if the joint ventilation element fits with a standard size. When introducing the joint ventilation element in the free joint to be closed, the cheek are pressed together with your fingers and held so to facilitate insertion. After the joint ventilation element is inserted in the joint, the cheeks exert a restraining force, so that the joint ventilation element can no longer slip out.

For overshoes, a larger joint element is used, so that at the bottom of a third cheek can occur by bending over a projection, so that the joint is also closed from below.

Hereinafter, an embodiment of the joint ventilation element according to the invention will be described in detail with reference to the accompanying drawings.

list of figures

• Fig. 1 : eine schematische Darstellung des Fugenlüftungselementes in einer aufgeklappten und ausgebreiteten Draufsicht.
• Fig. 2 : eine schematische Darstellung des Gitters, das die Oberfläche und das
• Fugenlüftungselement bildet,
• Fig. 3 : eine schematische Darstellung des Querschnitts des Fugenlüftungselementes,
• Fig. 4 : eine schematische Darstellung des Mauerwerks, in das das Fugenlüftungselement eingesetzt werden soll und
• Fig. 5 : eine schematische Darstellung einer Übersockelung eines Mauerwerks.

Herein show:

• Fig. 1 : A schematic representation of the joint ventilation element in an unfolded and expanded plan view.
• Fig. 2 a schematic representation of the grid, the surface and the
• Forms joint ventilation element,
• Fig. 3 : a schematic representation of the cross section of the joint ventilation element,
• Fig. 4 : a schematic representation of the masonry in which the joint ventilation element is to be used and
• Fig. 5 : a schematic representation of a Übersockelung masonry.

figure description

In Fig. 1 is a schematic representation of the joint ventilation element shown in an unfolded and expanded plan view.

It is the joint ventilation element 1 shown spread. The joint ventilation element 1 consists of a grid G whose structure is in Fig. 2 is shown. The grid G is continuous throughout the joint ventilation element 1. The joint ventilation element 1 has a front side 11, to which a first lateral cheek 12 and a second lateral cheek 13 laterally adjoin. For a minimal version, this would be sufficient to secure released joints and still allow air circulation.

Furthermore, the joint ventilation element 1 has a first upper end 14 and a second lower end 15, wherein at the second lower end in this embodiment, a third cheek 16 is arranged.

The cheeks are bent in an insertable state to the rear, so that after the bending of the first lateral cheek 12 and the second lateral cheek 13 in cross section, a U is formed. More details in Fig. 3 shown.

In addition, the third cheek 16 can also bend to the rear, so that at the lower end 15 results in a limitation to the bottom during subsequent installation.

Further, at the upper left corner of the second side cheek 13, the three corner cut A is made along the cut line S, so that there is a bevel as in the other three corners. This bevel is particularly advantageous when inserting the joint ventilation element. 1

Fig. 2 shows a schematic representation of the grid G, which forms the joint ventilation element 1.

The grid G is a fine-meshed cross grid, which effectively prevents even the smallest impurities from entering the ventilation layer behind the wall. This ensures that the air layer remains clean and the ventilation gaps 24 remain free.

In Fig. 3 is a schematic representation of the cross section of the joint ventilation element 1 is shown. The joint ventilation element 1 is located in the ventilation gap 24, which is to close it. The front side 11 of the joint ventilation element 1 is flush with the outer edge of the clinker front. The lateral cheeks 12, 13 sit on voltage with the clinker side connected, so that the joint ventilation element 1 can not slip out. To insert the cheeks are slightly compressed and inserted into the ventilation gap 24. By this slight bias holds the joint ventilation element 1 safely in the ventilation gap 24 of the masonry second

It is particularly interesting here that a size of 6 mm width fits on the front side 11 of the joint ventilation element 1 for a ventilation gap 24 with a width of 6 mm to 10 mm and a size of 10 mm width on the front side 11 of the joint ventilation element 1 fits for a ventilation gap 24 with a width of 10 mm to 14 mm and a size of 14 mm width at the front 11 of the joint ventilation element 1 fits for a ventilation joint 24 with a width of 14 mm to 18 mm, so that for a large range of width B of the ventilation joints 24 a suitable standard dimension, such as 6 mm, 10 mm, 14 mm, etc. is found. The length of the lateral cheeks 12, 13, 15, 16 are approximately 10 mm.

Fig. 4 shows a schematic representation of the masonry in which the joint ventilation element is to be used.

Here, the masonry 2 with the individual clinker 21 is shown. Between the clinker 21 are horizontal joints 22 and vertical joints 23 which are grouted with grout. Furthermore, there are ventilation joints 24 which, by releasing the joint, allow ventilation of the intermediate layer of the masonry 2. In these ventilation gaps 24, the ventilation element 1 is used.

Fig. 5 is a schematic representation of Übersockelungsabstand U shown here to illustrate that when inserting a joint ventilation element with a closing front 11 with the clinker front at the lower end 15, a gap of the width U corresponding to the Übersockelungsabstandes U is formed by the Animals or dirt can penetrate into the intermediate layer of masonry 2. Therefore, at the lower end 15, a third cheek 16 is arranged, which is bent to the rear analogous to the lateral cheeks 13, 13, whereby this gap is also closed.

LIST OF REFERENCE NUMBERS

• 1: Joint ventilation element
• 11: front side
• 12: first lateral cheek
• 13: second side cheek
• 14: first, upper end
• 15: second, lower end
• 16: third cheek
• 17: fourth cheek
• 2: masonry
• 21: clinker
• 22: Fugue horizontally
• 23: Fugue vertically
• 24: ventilation joint
• A: corner cut
• B: Ventilation joint width
• G: grid
• S: cutting line
• U: Overflow distance

Claims (3)

1. Use of a gap ventilation element (1) in a ventilation joint of a double-wythe masonry structure (2), wherein the gap ventilation element (1) consists of a front side (11) and two lateral, spaced-apart side pieces (12, 13), wherein the side pieces (12, 13) and the front side (11) have a U-shaped cross-section and the gap ventilation element (1) consists exclusively of a continuous, one-piece, fine-meshed and bendable metal grid (G), and the grid (G) can be severed and/or cut into in chipless manner,
   wherein
   the gap ventilation element (1) has a first, upper, end (14) and a second, lower, end (15), wherein the side pieces (12, 13) at one or at both ends (14, 15) in each case are initially cut from the outside towards the first and/or second end (14, 15)
   and
   the cut is formed such that a chamfer is yielded, wherein the side piece (12, 13) at the end remote from the front side (11) is shorter than along the line of intersection between the front side and the side piece (12, 13),
   wherein
   the gap ventilation element (1) having the U-shaped cross-section with its front side (11) is formed flush with the outer edge of the double-wythe masonry structure (2).
2. Use according to Claim 1, characterised in that a third side piece (16) or a third and fourth side piece (16, 17) is/are arranged at the first and/or at the second end (14, 15).
3. Use according to Claim 1 or 2, characterised in that the metal is a high-grade steel, preferably V2A.

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