DE202014005275U1 - Multi-layer masonry barrier - Google Patents

Abstract

Multi-layer masonry barrier (1a) with an external fleece layer (2), and a moisture-proof and / or vapor-blocking foam layer (4).

Description

The invention relates to a multi-layer masonry barrier, which is used against rising damp in masonry.

In construction, the sealing against moisture or against non-pressurized water plays an important role. To protect floors or walls from damaging water absorption, water-repellent protective coatings, mineral seals or impregnations such as plastic dispersions are used. Alternatively, insulating or bitumen boards are applied to the affected areas or in or under the walls.

DE 202 19 215 U1 discloses a three-ply waterproofing material against moisture and against non-pressurized water in the construction field. Between a layer of polyethylene foam and a polyethylene layer a Kreuzgelege layer is arranged.

It is an object of the invention to provide a masonry barrier, which is characterized by good processing properties, and an arrangement with such a masonry barrier.

This object is achieved with the features of claims 1 and 18, respectively.

Advantageous embodiments are the subject of the dependent claims.

According to claim 1, a multilayer masonry barrier or a multi-layer composite seal is provided. A masonry barrier is intended to prevent water from rising from the bottom or from below in a wall, from penetrating water from one part of a wall to another, and to allow drainage of water from an inner shell of a clam-shell wall to an exterior of the building , Masonry barriers can also be used for masonry chimneys and parapets to protect the inside of the building from water penetration.

The masonry barrier according to claim 1 has a foam layer, which serves as a moisture and / or vapor barrier, and an outer nonwoven layer, which is connected to the foam layer on. This provides an easily manufactured and robust masonry barrier, which is insensitive to mechanical influences and provides a reliable and long-lasting protection against moisture. Due to the foam layer, the masonry barrier has an sd value> 1500 m. Furthermore, the masonry barrier by the use of foam and fleece (instead of eg bitumen board) on a low basis weight, so that the masonry barrier is easy to handle. In particular, foam is much less sensitive to temperature than bitumen or PVC and remains flexible even at temperatures down to -5 ° C, so that the masonry seal can be processed very well even at low temperatures. For example, a folding of the Mauersperrbahn is possible up to a temperature of -20 ° C, z. B. for making a so-called L-lock or Z-lock. In particular, connections to existing sealing levels or to masonry can be easily formed by the flexibility of the masonry barrier. For example, the described extremely flexible masonry barrier (in contrast to the relatively stiff bitumen or PVC) can be simply glued flat with a wall / wall, as the flexible masonry block adapts to any surface and thus also adheres well to an applied on the surface adhesive. In addition, the masonry barrier is compatible with bitumen and / or PVC and can be easily connected or glued with these materials.

The layers of the masonry barrier can be connected to each other in various ways, for example by means of gluing, laminating, spraying, fusing, concatenating or melt pressing. In this case, different methods can be used to connect the individual layers together. Also intermediate or further layers may be provided for connecting the barrier layer and nonwoven layer. Preferably, the nonwoven layer is connected to the foam layer by means of an adhesive layer or an adhesive. Alternatively, the nonwoven layer is connected to the foam layer by laminating, in particular by means of thermal lamination. Ie. by application of heat, the foam layer and / or the nonwoven layer melts on the surface, so that after compression and cooling of the two layers, a firm bond is formed.

Preferably, the foam sheet has a density in a range of 2 to 100 kg / m ³ , preferably a density in the range of 15 to 100 kg / m ³ in order to provide a sufficient and reliable barrier effect against moisture and steam. In particular, the foam layer has a thickness in a range of 0.8 mm to 2 mm, preferably a thickness of or about 1.5 mm.

The nonwoven layer is made of fibers of a material which are solidified, for example, by rolling to the nonwoven layer or to a nonwoven fabric or a nonwoven composite. Through her z. B. compared to films relatively rough surface, the outer nonwoven layer provides improved adhesion or a well-adhering substrate for building materials such as plaster or adhesive the use of the masonry barrier as L or Z insulation z. B. in double-shell masonry.

The nonwoven layer may consist of one or predominantly of a material, but it may also be a mixture of several types of material may be used. The fibers used may be of different types, for example vegetable fibers, cellulose fibers, recycled fibers, chemical fibers or mixtures of these materials. Chemical fibers are z. As polymer fibers, for example polypropylene, polyolefin, polyester and / or polyethylene. Polypropylene fibers have proven to be particularly suitable since they are particularly resistant to environmental influences. Alternatively, the nonwoven layer may be composed of several different layers, wherein different layers of different materials and / or densities may exist. By using different densities and thicknesses or thicknesses, the nonwoven layer or masonry barrier can be better adapted to different tasks. Particularly advantageously, the nonwoven layer is formed from a spunbonded since it is very resistant and has a very good durability in the production of plastic.

The basis weight of the nonwoven layer is preferably in a range of 20 to 140 g / m ² , preferably, the nonwoven layer has a basis weight of or about 40 g / m ² . The nonwoven layer preferably has a thickness of 0.1 to 1 mm, preferably 0.2 to 0.8 mm and particularly preferably 0.3 to 0.6 mm.

According to a preferred embodiment, the masonry barrier on a fabric layer. The use of a fabric layer, in particular a stretched fabric layer or a mesh fabric, in the masonry barriers increases their tensile strength and stability. In this way, the resistance of masonry barriers against puncturing or piercing, for example, by unevenness of the substrate is increased. Particularly preferred is a fabric layer on the top or bottom of the masonry barriers or between the layers arranged. For example, between the foam layer and the nonwoven layer. In order to achieve a high tensile strength fabric layers of high-strength fibers such. As polymer fibers, polypropylene fibers and / or glass fibers, found to be particularly suitable. The fabric layer may additionally or alternatively be or have a Glasgelege.

Preferably, the fabric layer has a basis weight in the range of 8 g / m ² to 14 g / m ² , wherein a basis weight of 12 g / m ^{2 has been found to} be particularly advantageous.

Several, not necessarily adjacent layers of fabric may be used in a single masonry barrier. Instead of multiple layers of fabric alternatively, a single fine-mesh fabric layer can be used. Preferably, the fabric layer has a mesh size of at least 18 mm, preferably of at least 14 mm, wherein the mesh size is particularly preferably in a range of 8 to 12 mm.

Overall, the masonry barriers advantageously have a basis weight in the range of 80 g / m ² to 150 g / m ² , 80 g / m ² to 250 g / m ² , 150 g / m ² to 400 g / m ² or 200 g / m ² to 500 g / m ² , wherein the basis weight is particularly advantageous in a range of 100 to 140 g / m ² . Due to their low weight - z. B. compared to bitumen board - the masonry barriers are easy to handle, ie they are easy to transport and easy to work with.

In particular, the masonry barriers are highly flexible due to the nature of the materials used and the strengths of the different layers, whereby the masonry barriers are particularly easy to handle and handle and good at z. B. adjust unevenness of surfaces.

The SD value, d. H. the water vapor diffusion-equivalent air layer thickness is greater than 20 m for the masonry barriers described above. In comparison, the SD value of a corresponding PVC film with a thickness of 1.2 mm is only 12-15 m. Thus, the SD value of masonry barriers 33-66% greater than the SD value of a corresponding PVC film.

Furthermore, the masonry barrier materials described above are compatible with bitumen. In addition, the materials of the masonry barriers are resistant to salt solutions, acids, bases and due to organic solvents and hydrocarbons. As a result, the masonry barriers can be used in many ways and are permanently resistant to environmental influences.

Preferably, the masonry barrier is web-shaped, so that it can be easily transported and processed as a roll product. For example, the masonry barrier can be provided as a roll product with a width between 10 cm-100 cm. Preferably, the web width is in the range of 10 to 15 cm, 15 to 25 cm, 30 to 50 cm or 75 to 100 cm.

The laying of a web-like masonry barrier (wall barrier web) as described above will be described below by way of example as a horizontal barrier. The support for the wall barrier is so thick with the mortar used that a flat surface without or substantially without unevenness (roughness, burrs) is provided. The wall barrier web is preferably not glued on, but placed loosely on the prepared surface. The connection between two webs can be provided in a loosely overlapping manner, whereby the overlap must be at least 200 mm in order to provide a dense horizontal barrier. Alternatively, the connection between two webs can be glued with an adhesive tape, an overlap of at least 50 mm is sufficient. For example, a 100 mm to 200 mm wide adhesive tape with a self-adhesive bituminous layer or butyl layer can be used. Then you can continue with the further layer structure on the masonry barrier.

The masonry barrier described above can also be installed as a so-called L-lock or Z-lock. For example, with unpainted, two-shell masonry (inner shell and veneer) on the building base, the Mauersperrbahn behind the veneer on the outside of the inner shell led up. Before attaching the wall barrier, an adhesive must be rolled up on the dry and clean surface. Subsequently, the wall barrier web is laid in web width from top to bottom. Adjacent tracks must overlap by at least 50 mm to provide a tight connection. The vertically laid wall barrier track is to be led to the (previously laid) horizontal wall barrier track with a corresponding overlap or is glued to it, so that no moisture bridges arise.

Alternatively, the horizontal and vertical part of the masonry barrier (one-piece) can be laid out of a lane, i. H. Horizontal barrier and vertical barrier are laid in one step. In this embodiment, no connections and overlaps between a horizontal and vertical part of the masonry block must be provided. This saves material and provides a tight horizontal / vertical barrier.

With reference to the figures, two preferred embodiments of a multilayer masonry barrier are described, wherein

1 represents a first embodiment of a multilayer masonry block, and

2 represents a second embodiment of a multilayer masonry block.

In 1 is the cross-sectional view of a first embodiment of a masonry block 1a schematically, not to scale and shown greatly enlarged. The seal 1a has two layers, an outer nonwoven layer 2 and a moisture impermeable and vapor barrier foam layer 4 ,

The fleece layer 2 consists of a polypropylene spunbonded nonwoven having a basis weight between 20 g / m ² and 100 g / m ² , preferably 40 g / m ² , and a thickness in the range of 0.2 to 0.8 mm. Furthermore, the nonwoven layer shows 2 - z. B. after attaching the seal 1a on a wall or wall (not shown) - to the outside. By the z. B. compared to the locked position 6a rougher surface of the nonwoven layer 2 is a well-adherent substrate for applied materials such. B. plaster etc. provided. Alternatively, the nonwoven layer 2 during processing so that it faces the ground (wall, bare floor), so that its rough surface ensures good adhesion to the substrate, for example by means of an adhesive.

The foam layer 4 the masonry barrier 1a serves as a moisture barrier and / or vapor barrier. The foam layer 4 is preferably made of polyethylene, has a density between 2 to 100 kg / m ³ and a thickness in the range of 0.5 mm to 2 mm. The foam layer 4 additionally increases the heat and impact sound insulation of the masonry barrier 1a ,

In 2 is the cross-sectional view of a second embodiment of a masonry barrier 1b schematically, not to scale and shown greatly enlarged.

The masonry barrier 1b has three layers, an outer nonwoven layer 2 , a moisture impermeable and / or vapor barrier foam layer 4 and a mesh fabric layer 6 that between foam layer 4 and fleece layer 2 is arranged. The fleece layer 2 and foam layer 4 correspond in their functions, advantages and magnitudes of the masonry barrier described above 1a ,

Through the mesh fabric layer 6 receives the entire masonry barrier 1b an increased tear and tensile strength. For a particularly high stability, a stretched polymer fabric, in particular a polypropylene leno fabric is used. The fabric layer can also be a Glasgelege, in particular a fiberglass or Glasfiebergelege. The basis weight of the fabric layer 6 is preferably in the range of 10-14 g / m ² , in particular 12 g / m ² . The mesh size of the fabric layer 6 is preferably in the range of 10-14 mm.

Both masonry barriers 1a . 1b are web-shaped to provide easy laying of masonry barriers.

LIST OF REFERENCE NUMBERS

1a, 1b

Masonry lock

2

nonwoven layer

4

foam layer

6

Grid fabric layer / Nests

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 20219215 U1 [0003]

Claims (18)

Multi-layer masonry barrier ( 1a ) with an outer nonwoven layer ( 2 ), and a moisture impermeable and / or vapor barrier foam layer ( 4 ). Multi-layer masonry barrier according to claim 1, wherein the foam layer ( 4 ) has a density in a range of 2 to 100 kg / m ³ , preferably has a density in the range of 15 to 100 kg / m ³ . Multi-layer masonry barrier according to claim 1 or 2, wherein the foam layer ( 4 ) has a thickness in a range of 0.5 to 2 mm, preferably 1 to 1.2 mm. Multi-layer masonry barrier according to claim 1, 2 or 3, wherein the nonwoven layer ( 2 ) has a basis weight in a range of 20 to 140 g / m ² , preferably has a basis weight of or about 40 g / m ² . Multi-layer masonry barrier according to one of the preceding claims, wherein the nonwoven layer ( 2 ) has a thickness in a range of 0.1 to 1 mm, preferably 0.2 to 0.8 mm, and more preferably 0.3 to 0.6 mm. Multi-layer masonry barrier according to one of the preceding claims, wherein the nonwoven layer ( 2 ) is made of vegetable fibers, cellulose fibers, recycled fibers and / or polymer fibers, in particular of polyester fibers. Multi-layer masonry barrier according to one of the preceding claims, wherein the nonwoven layer ( 2 ) is formed of a spunbonded nonwoven. Multi-layer masonry barrier according to one of the preceding claims, wherein the nonwoven layer ( 2 ) with the foam layer ( 4 ) is connected by means of an adhesive layer, or wherein the nonwoven layer ( 2 ) with the foam layer ( 4 ) is connected by lamination, in particular by means of thermal lamination. Multi-layer masonry barrier according to one of claims 1 to 7, wherein the seal a fabric layer ( 8th ), in particular a Gittergelege having. Multi-layer masonry barrier according to claim 9, wherein the fabric layer ( 6 ) between the nonwoven layer ( 4 ) and the foam layer ( 4 ) is arranged and connected to them. Multi-layer masonry barrier according to claim 9 or 10, wherein the fabric layer ( 6 ) the nonwoven layer ( 2 ) and the foam layer ( 4 ), wherein in particular the fabric layer is the exclusive connecting means between the nonwoven layer and the foam layer. Multi-layer masonry barrier according to claim 9, 10 or 11, wherein the fabric layer ( 6 ) is formed of high-strength fibers, in particular of polymer fibers, polypropylene fibers and / or glass fibers is formed. Multi-layer masonry barrier according to one of claims 9 to 12, wherein the fabric layer ( 6 ) has a basis weight of at least 8 g / m ² , preferably of at least 10 g / m ² , or wherein the basis weight is particularly advantageously in a range of 12 to 14 g / m ² . Multi-layer masonry barrier according to one of claims 9 to 13, wherein the fabric layer ( 8th ) has a mesh size of at least 18 mm, preferably of at least 14 mm, or wherein the mesh size is particularly preferably in a range of 8 to 12 mm. Multi-layer masonry barrier according to one of the preceding claims, wherein the masonry barrier ( 1a B) has a basis weight of at most 80 g / m ² , preferably at most 90 g / m ² , or wherein the basis weight is particularly advantageously in a range of 100 to 140 g / m ² . Multi-layer masonry barrier according to one of the preceding claims, wherein the masonry barrier ( 1a B) is web-shaped. Multi-layer masonry barrier ( 2 ) according to one of the preceding claims, wherein the masonry barrier ( 2 ) is arranged in a wall, under a wall and / or on a side surface of a wall, wherein in particular the nonwoven layer ( 4 ) facing upward and / or facing outward with respect to a side surface of a wall. Masonry arrangement with a base on which masonry is to be erected, a multi-layer masonry barrier ( 2 ) according to one of the preceding claims, and one on the masonry barrier ( 2 ) built masonry.

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