DE3120240A1 - USE OF CLEANING PROFILE BARS FOR THE PRODUCTION OF LEVEL BASE PLASTER WITH PRE-DETERMINED MINIMUM PLASTER THICKNESS AND CLEANING PROFILE BAR FOR THIS PURPOSE - Google Patents

Abstract

1. Plaster profile strip, intended for the production of planar underplasters, with a profile edge formed as offtake edge and two expanded metal fields, which extend away therefrom while including an acute angle, as fastening limbs for mounting at a wall to be plastered, characterised by the use for the production of planar insulating plasters of great thickness as rail as thereby, that the expanded metal fields (14, 15) display large mesh size and extend on the sides remote from the profile edge (11) away directly from narrow strip bands (12, 13), which are arranged in V-shape and form the profile edge, in respective planes defined by them.

Description

dr. ing. HEINRICH G EITZ patpntanäALT: jsoo kasltsrUhe i,: post box 27οβ

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811806

Applicant: Protektorwerk

Florence Maisch GmbH & Co. KG Viktoriastraße

7560 Gaggenau

Use of plaster profile strips to produce even Sub-plasters with a predetermined maximum plaster thickness and plaster profile strip for this purpose

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description

In view of the dimensional deviations occurring in structural walls, In particular, unevenness, plaster layers applied to the shell walls can sometimes be very different and also have thicknesses below the required plaster thicknesses. Compliance with predetermined ones is of particular importance Plaster thicknesses in the case of the so-called casing plasters, which is in the interest an improved thermal insulation of buildings in layer thicknesses of up to Io cm, in special cases even in larger thicknesses.

As is known, before plastering wall surfaces, so-called plaster profile strips, which are provided with pull-off edges, at the corners of the building as well as in the area of door and window reveals, mortared in the correct position and then the plaster compound, which is often injected with the help of so-called straightening billets over the profile edges designed as pull-off edges the plaster profile strips removed. However, this is no longer possible if the width of the plastered surfaces is greater than that

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for reasons of manageability limited lengths of the straight edge. In such cases it remains a matter of skill and the experience of the plasterer entrusted with the plastering work to create a more or less even plastered surface, which, of course, can only approximately succeed.

Admittedly, since the plaster layers applied in the manner explained above can only be so-called sub-plasters that occurring inaccuracies are still compensated by subsequently applied finishing coats, but this naturally leads to finishing plaster layers of different thicknesses, which under certain weather conditions, for example, when the surface of the plaster is moistened, it can be easily visible.

While with conventional plasters, the required minimum plaster thickness and a compensation for such Reduced thicknesses due to the increased application of top plaster layers only change the structure of such plaster surfaces is the prescribed one for insulating plasters in the event that the required minimum plaster thicknesses are not met in certain areas Thermal insulation is no longer guaranteed, even if reinforced toppwtz layers are applied in such areas

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which, however, are unable to make a compensatory contribution in terms of thermal insulation.

The invention is intended to remedy this deficiency and to show a possibility, as well as with large ones Plaster surface widths, the production of even plaster surfaces and, in addition, compliance with predetermined minimum plaster thicknesses succeeds, which is particularly important for insulating plasters that are to be applied in thick layers. In addition, should a suitable plaster profile must be specified for this purpose.

This object of the invention is achieved by the use of plaster profile strips, which are designed as a pull-off edge Profile edge are provided and for attachment to a wall to be plastered at least one of this Profile edge extending further, with transverse recesses or have holes provided with fastening legs, for the production of level overcoats with predetermined Minimum plaster thickness for plastered areas with large widths by removing the wall to be plastered by attaching

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Plaster profile strips at predetermined distances from each other divided into partial areas of limited width and the plaster mass then applied over the pull-off edges of the plaster profile strips is just withdrawn.

The invention is therefore based on the consideration that for It is essential to achieve even plastered surfaces and predetermined minimum plaster thicknesses, which are also partially not undershot are to be, two spaced apart and appropriately aligned trigger edges are required, which can be deducted in a known manner by means of a straight edge.

With regard to the plaster profile strip to be created for the aforementioned use, the object of the invention is thereby solved that from the formed as a pull-off edge profile edge two legs which can be fastened to a building wall, in particular to be mortared, including an acute angle Extend less than 90 ° from the edge of the profile distant ends after attachment to a building wall to be plastered are supported on the latter and therefore

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even with the thick plaster required for insulating plaster at a considerable distance from the wall to be plastered held pull-off edge provide sufficient hold, so that this can cope with the stresses that occur when removing the plaster; able to withstand without deformation. An opening angle of about 30 ° between the proved to be both fastening legs, the recesses extending transversely through these fastening legs or perforations a largely complete backfilling of the flat wall surfaces to subdivide them in width Allow attached plaster profile strips. It has proven to be particularly advantageous to use the one on the building wall attachable profile legs at least in the areas adjoining the profile edge with strip-shaped expanded metal fields equip large mesh size, so that given sufficient stability of the plaster profile strip the largely unhindered patency of the plaster mass through such an expanded metal field with a large mesh size a perfect backfilling of the plaster profile strip is ensured. Of course, instead of strip-shaped Expanded metal fields along the as a trigger edge

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Serving profile edge, the fastening legs can also be designed in their entirety as expanded metal fields with a large mesh size.

An embodiment of the invention will be based on the following will be explained in the accompanying drawing. In schematic views show:

Fig. 1 is a perspective view of a detail from a suitable and specific plaster profile strip for the use according to the invention and

Fig. 2 shows a cross section through a building wall

correctly positioned at a distance from each other and one applied to the building wall over the pull-off edges of the Plaster profile strips removed insulation put

The plaster profile strip Io shown in a perspective detail view has a narrow ₃ V-shaped profile edge 11 and on both sides of T ^ -shaped sections 12, 13 of this profile edge

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fixing legs 14 j 15 with the expanded metal fields large mesh size are formed. In relation to the length of the fastening legs 14,15 are in their Strip-shaped sections 12, 13 extending across planes Profile edge 11 dimensioned very short, so that when spraying or throwing plaster on one.mit such Plaster profile strip equipped shell wall the plaster mass essentially unhindered by the wide-meshed expanded metal fields passes through and also the area 16 covered by the profile edge 11 as far as possible completely backfilled. The opening angle 17 between the two legs is 14.15 in the embodiment shown about 3o °.

When such plaster profile strips Io are used as intended, they are spaced apart at predetermined intervals 25, which are smaller than the lengths of the straight lines usually used for plastering work, to one plastering building wall 2o attached so that serving as extraction edges profile edges 11 adjacent Plaster profile strips span a level in all wall areas in one of the required minimum plaster thickness

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the distance from the shell wall to be plastered is less than that. In Fig. 2, two are schematically at a distance from each other on a shell wall 2o at 22 grouted plaster profile strips Io shown, which after application of the concealed plaster 21, in particular an insulating plaster, remain in the plaster and in view of the wide-meshed expanded metal fields the strand 1 * 1.15 only minimal accumulation of material as well as the perfect backfilling of the plaster profile rails do not cause any noticeable change in the plaster layer. In particular, given the design of the fastening legs as wide-meshed expanded metal fields, there are no significant fields Thermal bridges in the area of the profile strips.

After the subdivision of plastered areas, the width of which is greater is than the length of manageable straight edge, the plaster compound is applied in a known manner to the wall to be plastered, for example sprayed on, and then pulled off by means of a straight edge over the pull-off edges 11 of the plaster profile strips Io attached to the building wall. The after pulling off the narrow suction edges of the profile strips that pass through the concealed plaster at least in part are covered by a top coat 24 to be subsequently applied to such a sub-coat 21, as shown schematically is indicated in FIG.

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It can be seen that in the previously discussed This is possible without any problems, even with plastered surfaces that extend over a large width and are completely flat and, in addition, the minimum plaster thicknesses can not be used to produce plasters that are not below the minimum. Obvious The prerequisite for this is that the plaster profile strips on a building wall to be plastered before the plaster compound is applied be attached in the correct position, but this is known and possible without difficulty.

Claims (4)

8ll8o6 claims 1. Use of plaster profile strips that are provided with a profile edge designed as a pull-off edge and for attachment to a wall to be plastered at least one that extends from this profile edge with Have mounting legs provided with a recess or perforation, for the production of level plasters with predetermined Minimum plaster thickness for plastered areas with large widths, in which the wall to be plastered (2o) by attaching Plaster profile strips (Io) at predetermined distances (25) from one another divided into partial areas of limited width and the plaster compound (21) then applied over the pull-off edges (11) the profile strips is just pulled off. 2. Plaster profile strip for the use according to claim 1, characterized in that two of the profile edge (11) designed as a pull-off edge are located on a building wall mm O - 8ll8o6 fixable legs (14,15) including an acute angle (17) of less than 90 forterstrecken. 3. Plaster profile strip according to claim 2, characterized in that the angle (17) enclosed by the legs (14, 15) is about 3o °. 4. Plaster profile strip according to claim 2 or 3, characterized in that that the on the building wall (2o) attachable profile legs (14, 15) at least in the to the profile edge (11) adjacent areas strip-shaped expanded metal fields have a large mesh size.