DE202015004314U1 - Moisture barrier or wall barrier - Google Patents

Abstract

Moisture barrier (2b) and / or wall barrier (2b) for sealing against moisture and / or as a moisture barrier, formed of: (i) at least two cross-laminated layers of plastic, (ii) at least three coextruded layers of plastic, or (iii) one layer made of polyethylene.

Description

The invention relates to a moisture barrier for sealing floor slabs and / or a wall barrier sheet to seal against rising damp and / or the base seal (moisture barrier).

In construction, the seal plays against moisture, such. As against non-pressing water, an important role. For the protection of floor slabs and walls against damaging water absorption or water diffusion water-repellent seals are applied in foil form as a moisture barrier. In or under walls z. As PVC films or bitumen cardboard arranged as so-called wall barriers.

It is an object of the invention to provide an improved moisture barrier and / or masonry barrier against moisture and water in buildings.

This object is achieved with the features of claim 1, 23 and 29, respectively.

Advantageous embodiments are the subject of the dependent claims.

According to claim 1, a moisture and / or wall barrier is provided for sealing against rising moisture in buildings. The moisture and / or wall barrier is preferably used as a wall barrier (on, in or under a wall) and as a moisture barrier (eg on a raw concrete ceiling under a separating layer screed).

The moisture and / or wall barrier has one or more layers of plastic. When providing multiple layers of plastic, the same plastic or different plastics can be used for the plastic layers. According to a first embodiment, the moisture barrier and / or wall barrier (i) has at least two layers of plastic laminated with each other crosswise. By cross-laminating the two layers, a seal or multilayer film is provided, which has a particularly high resistance to tearing and crushing. Alternatively, the moisture and / or wall barrier (ii) has at least three coextruded or coextruded layers of plastic. By coextrusion specific properties of the individual layers can be easily combined in any simple manner and it can, for. For example, a multi-layer film with high strength can be provided. Further alternatively, the moisture and / or wall barrier only (iii) a layer of polyethylene, preferably the moisture and / or wall barrier is single-layer in this embodiment.

For the different plastic layers can z. As polyethylene (PE), low density polyethylene (LDPE), very low density polyethylene (VLDPE), high density polyethylene (HDPE) or polyethylene terephthalate (PET) in a moisture and / or wall barrier are combined, in one Humidity and / or wall barrier the same plastics or different plastics can be combined.

Through the use of plastics, the moisture and / or wall barrier (compared to PVC or bitumen board) on a low basis weight, so that the moisture and / or wall barrier is easy to handle. In particular, plastics such as polyethylene, in contrast to bitumen or PVC are much less sensitive to temperature, so that the moisture and / or wall barrier remains flexible even at temperatures of up to minus 5 ° C. As a result, the moisture and / or wall barrier can be processed well even at low temperatures. For example, a folding of the moisture and / or wall barrier is possible up to a temperature of -20 ° C, z. B. for making a so-called L-lock or Z-lock.

Furthermore, plastics such as polyethylene have excellent chemical resistance and z. B. acid-resistant, salt-resistant and alkali-resistant. In particular, the moisture and / or wall barrier paint-compatible and can be easily coated with primers and long-term coatings. The use of plastics such as polyethylene thus increases the mechanical strength, flexibility, wear resistance and chemical and age resistance of the moisture and / or wall barrier. In summary, the moisture and / or wall barrier is frost resistant, chemical resistant and has a high resistance to tearing and puncture through the use of said plastics. At the same time the moisture and / or wall barrier is easy to handle due to its flexibility and low weight or low density.

Preferably, the moisture and / or wall barrier is dimensioned (thickness / thickness of the layers or total thickness of the moisture and / or wall barrier) that the moisture and / or wall barrier an SD value (water vapor diffusion equivalent air layer thickness) between 70-100 m , preferably between 75-95 m, more preferably between 80-90 m, so as to provide a sufficient barrier effect (moisture barrier or brake) against water or moisture. In particular, the moisture and / or wall barrier is at least diffusion-inhibiting or steam-inhibiting.

Preferably, the moisture and / or wall barrier is web-shaped, so that they are transported in a simple manner as a roll and can be processed. For example, the moisture and / or wall barrier can be provided as a roll product with a width between 0.1-1.5 m. Preferably, the web width is in the range of 10-15 cm, 15-25 cm, 30-50 cm, 75-100 cm, 90-120 cm, 110-150 cm or 130-200 cm.

According to a particularly preferred embodiment, the moisture and / or wall barrier has no aluminum. Ie. the moisture and / or wall barrier can be completely made compared to aluminum low-priced plastics such. B. polyethylene are produced inexpensively. Additionally or alternatively, the moisture and / or wall barrier has no bitumen.

The at least two cross-laminated layers are preferably made of polyethylene, in particular of high density polyethylene (HDPE), low density polyethylene (LDPE) or very low density polyethylene (VLDPE). The density of HDPE is between 0.94-0.97 g / cm ³ . The density of LDPE is between 0.915-0.935 g / cm ³ and the density of the VLDPE is between 0.884-0.906 g / cm ³ . The use of polyethylene provides an extremely flexible masonry barrier, which does not require the use of plasticizers in particular.

Preferably, the at least two cross-laminated layers (together) have a thickness of 50-130 μm, preferably 60-120 μm and particularly preferably 64-110 μm. In particular, the at least two cross-laminated layers have a thickness of at least 60 μm. Due to the extremely low strength of the moisture and / or wall barrier has a very low basis weight, so that the handling is simple and in addition the material requirement or material consumption is low.

• – eine Reißfestigkeit ( ISO 527-3 ) in Längsrichtung zwischen 50–80 N/15 mm und in Querrichtung zwischen 45–70 N/15 mm,
• – eine Reißdehnung ( ISO 527-3 ) in Längsrichtung zwischen 790–990% und in Querrichtung zwischen 540–350%,
• – eine Weiterreißkraft ( ISO 53 363 ) in Längsrichtung zwischen 30–50 N und in Querrichtung zwischen 30–45 N, und/oder
• – eine Durchstoßkraft ( EN 14 477 ) zwischen 3–5 N.

The moisture and / or wall barrier with at least two cross-laminated layers may have one or more of the following properties:

• A tensile strength ( ISO 527-3 ) in the longitudinal direction between 50-80 N / 15 mm and in the transverse direction between 45-70 N / 15 mm,
• - an elongation at break ( ISO 527-3 ) in the longitudinal direction between 790-990% and in the transverse direction between 540-350%,
• - a tearing force ( ISO 53 363 ) in the longitudinal direction between 30-50 N and in the transverse direction between 30-45 N, and / or
• - a puncture force ( EN 14 477 ) between 3-5 N.

• (a) zwei Lagen Polyethylen mit geringen Dichte (LD-PE) und/oder sehr geringer Dichte (VLD-PE) und einer Lage Polyethylen mit hoher Dichte (HD-PE), oder
• (b) zwei Lagen Polyethylen mit hoher Dichte (HD-PE) und eine Lage Polyethylen mit geringen Dichte (LD-PE) oder sehr geringer Dichte (VLD-PE).

The moisture and / or wall barrier with the at least three coextruded layers can have the following material combinations:

• (a) two layers of low density polyethylene (LD-PE) and / or very low density (VLD-PE) and one layer of high density polyethylene (HD-PE), or
• (b) two layers of high density polyethylene (HD-PE) and one layer of low density polyethylene (LD-PE) or very low density (VLD-PE).

The order of the individual layers is arbitrary, z. For example, the following combinations are possible: LDPE / HDPE / LDPE, LDPE / LDPE / HDPE, HDPE / LDPE / HDPE, LDPE / HDPE / HDPE, VLDPE / HDPE / LDPE, LDPE / VLDPE / HDPE, etc.

Preferably, the at least three co-extruded layers (together) have a thickness of 100-180 μm, preferably 110-160 μm and particularly preferably 120-150 μm.

The moisture and / or wall barrier with only one layer of polyethylene has a thickness of at least 200 .mu.m, preferably a thickness of between 200-400 .mu.m, more preferably between 250-300 .mu.m. Preferably, this moisture and / or wall barrier is made of low density polyethylene (LDPE). Since the moisture and / or wall barrier in this embodiment has only one plastic layer, it can be produced particularly inexpensively.

According to one embodiment, the moisture and / or wall barrier additionally comprises a layer of aluminum. Due to the aluminum layer, the moisture and / or wall barrier is vapor-tight or acts as a vapor barrier with an SD value ≥ 1500 m. At the same time, the basis weight of the moisture and / or wall barrier remains low, so that the moisture and / or wall barrier remains easy to handle. In particular, aluminum, as well as the plastics described above, little sensitive to temperature and remains flexible at temperatures of up to minus 5 ° C, so that the moisture and / or wall barrier can be processed very well in this embodiment at low temperatures. In particular, the flexibility of the moisture and / or wall barrier makes it easy to form connections to existing sealing levels or to masonry. For example, the described extremely flexible moisture and / or wall barrier can be easily glued surface, since the flexible moisture. or masonry barrier adapts to any surface and thus also adheres well to an applied on the surface of adhesive. In particular, the moisture and / or wall barrier is compatible with bitumen and / or PVC and can be easily connected or glued to these materials.

The aluminum layer may have a basis weight of preferably 19-81 g / m ² , preferably 25-60 g / m ² and particularly preferably 30-40 g / m ² , and additionally or alternatively, a thickness of preferably 7-30 microns, preferably 10-20 microns and more preferably 12-15 microns.

Preferably, a protective layer disposed on the aluminum layer is provided to protect an aluminum layer, which protects the non-alkali-resistant aluminum from damage. For example, a protective layer of plastic such as polyolefin, polyethylene terephthalate (PET) or a PET film or high density polyethylene (HDPE). The protective layer may have a basis weight of preferably 14-71 g / m ² , preferably 14-50 g / m ² and particularly preferably 14-30 g / m ² . In particular, the protective layer may have a thickness of preferably 10-50 μm, preferably 10-30 μm and particularly preferably 12-20 μm. For example, a protective layer of PET has an areal density of 17 g / m ² or a thickness of 12 μm. The use of PET has the further advantage that the tightness of the moisture and / or wall barrier is increased against moisture. In particular, when using a protective layer of PET with a higher surface density or a thicker / stronger protective layer, the thickness of the aluminum layer can be reduced without reducing the SD value of the moisture and / or wall barrier. Alternatively, the protective layer of a polyolefin melt having a basis weight between 30-50 g / m ² , preferably 40 g / m ^{2 be} formed.

According to a further embodiment, the moisture and / or wall barrier (with / without aluminum layer) on at least one functional position, wherein the at least one functional layer may be a nonwoven, a fabric and / or a scrim, z. For example, a mesh fabric or Gittergelege. The functional layer increases the stability or the tear strength of the moisture and / or wall barrier. Preferably, the functional layer of plastic fibers, for. B. made of polyethylene (PE), glass fibers or natural fibers. The surface of a fleece is slightly rough or fibrous and the surface of a fabric and Geleges has a surface structure, so that these (outwardly facing) surfaces of the moisture and / or wall barrier provide a very good adhesion ground for masonry mortar and plaster.

Preferably, the at least one functional layer has a grid structure or a grid fabric with a grid spacing in at least one (grid) direction of not more than 25 mm, preferably not more than 20 or 12 mm and particularly preferably not more than 8 mm. This provides maximum tear resistance. For example, a lattice spacing is 12 mm in a first direction and 6 mm in a second direction perpendicular to the first direction. The details of the grid spacing relate to an average grid spacing in which a manufacturing tolerance is taken into account.

The at least one functional layer is preferably formed of a mesh fabric or mesh fabric having a basis weight of 10-50 g / m ² , preferably 15-40 g / m ² and particularly preferably 20-30 g / m ² . For example, the basis weight of the at least one functional layer is 25 g / m ² when using a PE fabric.

The at least one functional layer is preferably formed of a nonwoven made of polypropylene (PP), polyethylene (PE), polyester, polybutylene terephthalate (PET), polybutylene terephthalate (PBT) or polyamide (PA). The fleece is particularly preferably in the form of a spunbonded nonwoven, in particular as a hydrophilized (water-permeable) polypropylene spunbonded nonwoven having a basis weight of, for example, 40 g / m ² . Preferably, the nonwoven fabric has a basis weight of 15-120 g / m ² , preferably 20-110 g / m ² and particularly preferably 30-100 g / m ² .

The individual layers of the moisture and / or wall barrier, d. H. the plastic layers, the at least one functional layer and / or the aluminum layer can be connected to one another by gluing, laminating, spraying, fusing, linking and / or melt pressing. In this case, different methods can be used to connect the individual layers together.

According to a particularly preferred embodiment, the barrier described above and below is usable as a masonry barrier for horizontal sealing in or under walls against rising damp. Masonry barriers are designed to prevent water from rising from the ground in a wall, to allow water to pass from one part of a wall to another, and to allow water to be drained from the interior shell of a clam-shell wall to the exterior of the building (L / Z start inhibit). Mauersperrbahnen can z. B. also be used for masonry chimneys and parapets to protect the interior of the building from above penetrating water. Together with covers and waterproofing membranes, such as roofing membranes and moisture barriers, they should ensure a continuous barrier so that water can be routed to the outside of a building for safe drainage.

The laying of a web-like wall barrier or wall barrier web as described above as a horizontal barrier will be described below by way of example. The support for the wall barrier strip is to be adjusted so thickly with the mortar used in each case that a flat surface without or substantially without unevenness (roughness, burrs) is provided. The wall barrier sheet is not glued on, but placed loosely on the prepared surface. The connection between two Lanes 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, while an overlap of at least 50 mm between the wall barrier webs is sufficient. Then you can continue with the further layer structure on the masonry barrier.

The Mauersperrbahn 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. 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 wall barrier (one-piece) can be laid out of a track, 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.

According to a particularly preferred embodiment, the barrier described above and below is usable as a moisture barrier for sealing floor slabs such as raw concrete slabs against rising damp (including soil moisture and water). When used as a moisture barrier z. B. the moisture barrier laid on a raw concrete floor or a floor slab. On the moisture barrier then the further soil structure can be done, for. B. an insulating layer, a release liner and finally a screed.

To connect individual web-shaped moisture barriers (in the longitudinal direction), a first adhesive strip can be arranged in a side region on a first side of the moisture barrier and a second adhesive strip can be arranged on the opposite side region on the opposite second side of the moisture barrier. Ie. an adhesive strip is disposed on an upper side at a side portion of a barrier web, and a second adhesive strip is disposed on a lower surface at the other side portion of the waterproofing sheet. When joining two webs, the sides or side regions of the webs to be joined are arranged overlapping, so that the adhesive strips rest on the side regions of the webs. This provides a 'glue-on-glue' connection, which immediately creates a tight and well-adhered bond. This embodiment of the web-shaped barrier is particularly advantageous when used as a moisture barrier for sealing floor slabs, in which the barrier or seal between a raw concrete floor and a screed is laid to separate the screed from the supporting substrate. The damp barrier protects the screed against rising damp.

Preferably, the adhesive used for the adhesive strip is cold-tacky, in particular to -10 ° C processable. For example, the first and second adhesive strips are formed from an acrylate adhesive. Alternatively, a so-called hot melt adhesive based on synthetic resins may be used. Preferably, the adhesive strips have a basis weight between 40-80 g / m ² , preferably between 45-70 g / m ² , more preferably of about 50 g / m ² .

The above-described (cross) adhesive strips may extend over the entire length or substantially the entire length (transverse to the web dimension) of a web-shaped moisture barrier, so that the side regions of the webs can be joined together in the longitudinal direction. In addition, it is possible to provide (transverse) adhesive strips which extend over the entire width or substantially the entire width of the moisture barrier web, so that one end of one web can be glued to the beginning of the next web.

An adhesive strip may have a width of 2 cm to 8 cm, preferably 3 cm to 5 cm. If z. B. the (transverse) adhesive strips have a width (transverse to the longitudinal direction of the web-like moisture barrier) of 3 cm, adjacent tracks are laid as described above overlapping each 3 cm, so that the adhesive tape lie on each other and a 'glue-on-glue' Connection can be made. When connecting or bonding bituminous membranes, significantly greater overlap is required to ensure a dense sealing level. Due to the lower overlap in the connection of the moisture barrier described, a total of less sealing material per square meter is consumed, thus saving material and costs.

In an embodiment, however, it can also be provided that only one adhesive strip is provided on one longitudinal side of the barrier web, so that instead of the adhesive-on-adhesive connection, a connection between an adhesive of a web strip (on Top or bottom) on the underside or top of the adjacent web strip arises.

Preferably, the first and / or second adhesive strips are each covered with a colored release strip to protect the adhesive strips. The peel strips are peeled off or removed before gluing. The colored design makes it easier to recognize and remove the release strips.

Below is an example of the installation of the moisture barrier web described as a moisture barrier. First, the individual tracks (lane) z. B. designed on a bottom plate and its side portions in the longitudinal direction as described above glued together. The webs are designed so that the longitudinal edges or side regions of adjacent webs z. B. overlap by about 5 cm. Finally, the longitudinal edges can be connected to one another in a vapor-tight or moisture-inhibiting manner by gluing with adhesive tapes. For example, adhesive tapes with a width of 100 mm or 200 mm may be used which have a butyl or bitumen based self-adhesive layer. In particular, the moisture barrier is not completely bonded to the substrate (eg raw concrete).

Above and below elements of a damp and / or wall barrier and preferred embodiments for the moisture barrier or the wall barrier are described. The elements can be combined with each other in any combination or subcombination. Also elements that are described for the moisture barrier or web are used for the wall barrier and vice versa.

Embodiments of the invention will be explained in more detail with reference to the figures. Show it:

1 a schematic, not to scale side sectional view of a moisture barrier sheet for use as a moisture barrier for floor panels,

2 a schematic, not to scale lateral sectional view of a mounted or installed moisture barrier, and

3 a schematic, not to scale side sectional view of a wall barrier according to a further embodiment.

1 shows a schematic, not to scale side sectional view of a moisture barrier 2a for use as a moisture barrier z. B. for floor slabs or unfinished concrete floors (eg., Screed floors).

• (i) zumindest zwei kreuzlaminierten Lagen, oder
• (ii) zumindest drei koextrudierten Lagen, oder
• (iii) nur einer Lage Polyethylen.

The moisture barrier 2a is formed of polyethylene and has a layer or a layer composite 4 on off:

• (i) at least two cross-laminated layers, or
• (ii) at least three coextruded layers, or
• (iii) only one layer of polyethylene.

The individual layers of the moisture barrier 2a may be formed of low density polyethylene (LDPE), very low density polyethylene (VLDPE), high density polyethylene (HDPE). For the individual layers of a moisture barrier 2a The same plastics or different plastics can be combined. For example, both of the at least two cross-laminated layers are made of HDPE. The at least three coextruded layers can be formed from two layers of LDPE and one layer HDPE or alternatively from one layer of LDPE and two layers of HDPE, wherein the order or sequence of the layers can be chosen as desired. To form the moisture barrier with only one layer, LDPE can be used.

• (i) zwei kreuzlaminierte Lagen aus HDPE mit einer Stärke zwischen 64–120 μm,
• (ii) drei koextrudierte Lagen aus 2 × HDPE/1 × LDPE oder 2 × LDPE/1 × HDPE mit einer Gesamtstärke zwischen 120–150 μm,
• (iii) eine Lage aus LDPE mit einer Stärke zwischen 200–400 μm, bevorzugt 250–300 μm.

The layer composite or the situation 4 may for example have the following structure to act as a so-called vapor barrier (SD value of about 80-90 m):

• (i) two cross-laminated layers of HDPE having a thickness between 64-120 μm,
• (ii) three co-extruded layers of 2 × HDPE / 1 × LDPE or 2 × LDPE / 1 × HDPE with a total thickness between 120-150 μm,
• (iii) a layer of LDPE having a thickness between 200-400 μm, preferably 250-300 μm.

The moisture barrier 2a is web-shaped, wherein in the side regions (in the longitudinal direction) of the webs in each case on a side region on an upper side of an adhesive strip 20a is arranged and on the opposite side region on the bottom of an adhesive strip 20b is arranged. To connect the individual webs of the moisture barrier 2a the side areas of two webs to be joined are arranged overlapping, so that the respective adhesive strips 20a -B lie on top of each other. Ie. A very good and fast-adhering 'glue-on-glue' compound is provided. The one for the adhesive strips 20a -B used adhesive is cold adhesive and it can be used for example an acrylate adhesive or a hot melt adhesive. These adhesives can be easily processed down to minus 10 ° C.

Around the front edges of the end (web roll end) of a moisture barrier web 2a To connect with the beginning (web role start) of the next moisture barrier track close to each other, the final and initial areas of continuing courses are in the laying z. B. arranged overlapping about 5 cm. Subsequently, the transverse edges or Overlapped longitudinal strips of the webs with an adhesive tape, so that a vapor-tight or moisture-proof connection between the tail and web start is made. The tape has z. B. a width between 100-200 mm.

As in 2 is shown schematically and not to scale, when using the described moisture barrier 2a , the moisture barrier 2a on a floor plate 12 or a raw concrete floor designed and glued as described above. Following a wall 16 becomes the moisture barrier 2a trough-like pulled up, leaving a dense separating layer between raw concrete 12 and the further floor structure is provided. On the misplaced damp barrier 2a becomes an insulating layer 10 (from a thermal insulation material such as Styrofoam or mineral wool), a release liner 11 and a screed 14 applied. Following the wall 16 is a border insulation strip 18 arranged to the screed 14 from the wall 16 to decouple.

The moisture barrier described above 2a provides a moisture barrier. However, this can also be configured as the composite material / sandwich as below, as in the following for the masonry barrier 2 B is described. Ie. the layer composite can be around the aluminum layer 6 and / or the functional position 8th be extended. Especially through the aluminum layer, vapor density is achieved.

The moisture barrier described above 2a can also be used as a wall barrier for horizontal sealing in or under walls. When used as a wall barrier are the adhesive strips described above 20a -B not necessary or a sealing sheet without adhesive strip as described above is used. For example, the web-like seal can be installed as a so-called L / Z wall barrier: In unpainted, two-shell masonry (inner shell and veneer) on the building base, the web-shaped seal behind the veneer on the outside of the inner shell is led up (vertical wall barrier). The vertically laid wall barrier track is to be led to a (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 wall barrier (one-piece) can be laid out of a track, ie in one step horizontal barrier and vertical barrier are laid. In this embodiment, no connections and overlaps between a horizontal and vertical part of the masonry block must be provided.

3 shows a schematic, not to scale side sectional view of the wall barrier 2 B according to a further embodiment. Unless otherwise stated, the characteristics, features and possible uses of the above described moisture barrier sheet are the same 2a those of the wall barrier described below 2 B , In particular, the wall barrier 2 B also be used as a moisture barrier for sealing floor panels (with adhesive strips as described above 20a -B), as well as a wall barrier for sealing in and under walls.

In the 3 illustrated wall barrier 2 B In addition to a layer composite or a layer as described above 4 made of polyethylene an aluminum layer 6 on, through which the wall barrier receives an SD value of at least 1500 m, so that the wall barrier is vapor-tight or acts as a vapor barrier.

With the aluminum layer 6 is a functional situation 8th connected, which may be formed of a nonwoven, a fabric or a scrim. For example, a spunbonded fabric, such as. As a PP nonwoven or PET nonwoven can be used. When using the masonry barrier 2 B indicates the functional position 8th upwards or outwards. The outwardly facing fibrous and slightly rough surface of a nonwoven or the textured surface of a fabric or jelly provides a well-adherent substrate for masonry mortar and plaster. In addition, the functional position offers 8th Protection against mechanical damage.

LIST OF REFERENCE NUMBERS

2a

Moisture barrier / moisture barrier sheet

2 B

Wall barrier / wall barrier sheet

4

Layer composite made of PE / layer made of PE

6

aluminum sheet

8th

functional position

10

insulation

11

separating layer

12

baseplate

14

screed

16

wall

18

Edge insulation strips

20a-b

tape

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 non-patent literature

• ISO 527-3 [0016]
• ISO 527-3 [0016]
• ISO 53 363 [0016]
• EN 14 477 [0016]

Claims (31)

Moisture barrier ( 2 B ) and / or wall barrier ( 2 B ) for sealing against moisture and / or as a moisture barrier, formed from: (i) at least two cross-laminated layers of plastic, (ii) at least three coextruded layers of plastic, or (iii) a layer of polyethylene. Moisture and / or wall barrier according to claim 1, wherein the plastic layers are formed of one or more of the following materials: polyethylene (PE), low density polyethylene (LDPE), very low density polyethylene (VLDPE), high density polyethylene ( HDPE). Moisture and / or wall barrier according to claim 1 or 2, wherein the moisture and / or wall barrier ( 2a -B) has no plasticizers and / or bitumen. Moisture and / or wall barrier according to claim 1, 2 or 3, wherein each of the at least two cross-laminated layers is formed of polyethylene, in particular of low density polyethylene (LDPE) or very low density (VLDPE). Moisture and / or wall barrier according to one of claims 1 to 4, wherein the at least two cross-laminated layers have a thickness of 50-130 microns, preferably 60-120 microns and more preferably 64-110 microns. Moisture and / or wall barrier according to one of the preceding claims with at least two cross-laminated layers, wherein the two layers comprise: a tear strength (ISO 527-3) in the longitudinal direction between 50-80 N / 15 mm and in the transverse direction between 45-70 N / 15 mm, and / or an elongation at break (ISO 527-3) in the longitudinal direction between 790-990% and in the transverse direction between 540-350%, and / or a tear propagation force (ISO 53 363) in the longitudinal direction between 30-50 N and in the transverse direction between 30-45 N, and / or a puncture force (EN 14 477) between 3-5 N. Moisture and / or wall barrier according to claim 1, 2 or 3, wherein the at least three coextruded layers comprise: (a) two layers of low density polyethylene (LDPE) and / or very low density (VLDPE) and one layer of high density polyethylene (HDPE), or (b) two layers of high density polyethylene (HDPE) and one layer of low density polyethylene (LDPE) or very low density (VLDPE). Moisture and / or wall barrier according to claim 1, 2, 3 or 7, wherein the at least three coextruded layers have a thickness of 100-180 microns, preferably 110-160 microns and more preferably 120-150 microns. Moisture and / or wall barrier according to claim 1, 2 or 3, wherein the one layer of polyethylene has a thickness of at least 200 microns, preferably a thickness between 200-400 .mu.m, more preferably between 250-300 microns. Moisture and / or wall barrier according to one of the preceding claims, characterized by a water vapor diffusion equivalent air layer thickness (SD value) between 70-100 m, preferably between 75-95 m, more preferably between 80-90 m. Moisture and / or wall barrier according to one of the preceding claims, wherein the moisture and / or wall barrier ( 2a B) additionally a layer of aluminum ( 6 ) or laminated with aluminum. Moisture and / or wall barrier according to claim 11, wherein the aluminum layer ( 6 ) has a basis weight of preferably 19-81 g / m ² , preferably 25-60 g / m ² and particularly preferably 30-40 g / m ² , and / or a thickness of preferably 7-30 μm, preferably 10- 20 microns and more preferably 12-15 microns. Moisture and / or wall barrier according to claim 11 or 12, wherein on the at least one aluminum layer ( 6 ) is arranged at least one preferably alkali-resistant protective layer, in particular a protective layer of a plastic selected from: polyolefin, polyethylene terephthalate (PET), high density polyethylene (HDPE). Moisture and / or wall barrier according to claim 13, wherein the protective layer has: a basis weight of preferably 14-71 g / m ² , preferably 14-50 g / m ² and particularly preferably 14-30 g / m ² , and / or a thickness of preferably 10-50 microns, preferably 10-30 microns and more preferably 12-20 microns. Moisture and / or wall barrier according to one of the preceding claims, characterized by at least one functional layer ( 8th ), wherein preferably the at least one functional layer ( 8th ) is a nonwoven fabric and / or scrim. Moisture and / or wall barrier according to claim 15, wherein the at least one functional layer ( 8th ) is formed of a natural fiber, plastic fiber or glass fiber. Moisture and / or wall barrier according to claim 15 or 16, wherein the at least one functional layer ( 8th ): a Gittergelege or mesh fabric with a maximum grid spacing of 25 mm, preferably not more than 20 mm and more preferably not more than 12 mm, and / or a basis weight of preferably 10-50 g / m ² , preferably 15-40 g / m ² and more preferably 20-30 g / m ² . Moisture and / or wall barrier according to claim 15 or 16, wherein the at least one functional layer ( 8th ) is a nonwoven layer having a basis weight of 15-120 g / m ² , preferably 20-110 g / m ² and particularly preferably 30-100 g / m ² . Moisture and / or wall barrier according to claim 18, wherein the at least one functional layer ( 8th ) is a nonwoven layer of polypropylene (PP), polyethylene (PE), polyester, polybutylene terephthalate (PET), polybutylene terephthalate (PBT) or polyamide (PA), wherein preferably at least one nonwoven layer is in particular formed as a spunbonded nonwoven. Moisture and / or wall barrier according to one of the preceding claims, wherein the plastic layers ( 4 ), which has at least one functional position ( 8th ) and / or the aluminum layer ( 6 ) are bonded together by gluing, laminating, spraying, fusing, concatenating and / or melt pressing. Moisture and / or wall barrier according to one of the preceding claims, wherein the moisture and / or wall barrier ( 2a B) is web-shaped. Wall barrier according to one of the preceding claims, wherein the wall barrier ( 2 B ) is arranged in a wall, under a wall and / or on a side surface of a wall, wherein in particular the at least one functional layer ( 8th ) facing upward and / or facing away from a side surface of a wall. Masonry arrangement with a base on which masonry is to be erected, a wall barrier ( 2 B ) according to one of the preceding claims, and one on the wall barrier ( 2 B ) built masonry, in particular, the at least one functional position facing up and / or facing away from a side surface of a wall. Moisture barrier according to one of the preceding claims, wherein the moisture barrier ( 2a ) is web-shaped, and wherein in a side region on a first side of the moisture barrier ( 2a ) a first adhesive strip ( 20a ) is arranged and preferably in an opposite side region on an opposite second side of the moisture barrier ( 2a ) a second adhesive strip ( 20b ), wherein in particular the or each adhesive strip ( 20a B) over the entire length or substantially the entire length of the moisture barrier ( 2a ). Moist barrier according to claim 24, wherein the first adhesive strip on the first side and / or the second adhesive strip on the second side each have a width in a range of 2-5% of the total width of the web-shaped moisture and / or wall barrier (US Pat. 2a ), preferably a width of or about 3% of the total width of the wet barrier ( 2a ), and / or wherein each adhesive strip ( 20a B) in the longitudinal direction of the moisture barrier ( 2a ) extends over 2 cm to 8 cm, preferably over 3 cm to 5 cm. Moisture barrier according to claim 24 or 25, wherein the first and second adhesive strips ( 20a -B) are each covered with a colored release liner to protect the adhesive strips. Moisture barrier according to one of the preceding claims 24 to 26, wherein the adhesive strips ( 20a B) are formed from an acrylate adhesive or from a hot melt adhesive. Moisture barrier according to one of the preceding claims 24 to 27, wherein the adhesive strips ( 20a -B) are cold-tacking, and / or wherein the adhesive strips ( 20a -B) are processable to minus 10 ° C. Flat sealing arrangement with at least two or more juxtaposed webs of moisture and / or wall barriers ( 2a B) according to any one of claims 1 to 28. A planar sealing arrangement according to claim 29, wherein adjacent webs of the moisture and / or wall barrier ( 2a -B) are laid overlapping in their edge region, in particular with an overlap region of at least 40 mm, 60 mm, 80 mm, 100 mm or 120 mm and / or in particular with an overlap region of at most 120 mm, 100 mm or 80 mm. A planar sealing arrangement according to claim 29 or 30, wherein is sealed with the sealing arrangement: a raw concrete floor (screed seal), a flat roof, a garage roof, a Balcony, a terrace, a wet room (interior waterproofing) or a cellar.

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