Static structures (e.g. – buildings) – Facers; e.g. – modules – mutually bonded by internal settable... – Lapped or bridger strip juncture-type surfacing
Patent
1990-07-24
1992-07-07
Scherbel, David A.
Static structures (e.g., buildings)
Facers; e.g., modules, mutually bonded by internal settable...
Lapped or bridger strip juncture-type surfacing
52 98, 52288, 52454, E04B 208
Patent
active
051272040
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a protective lath for making a plaster joint to a building component of different material when plastering a wall. Such a building component consists, for instance, of wood, plastics or metal. This building component preferably is a window frame, door frame or a rafter end.
Traditionally the wall plaster was applied directly up to the building component, which lead to considerable soiling of the building component and did not result in a durable and tight connection between the wall plaster and the building component.
DE-A-82 25 357 reveals a protective lath of metal, which is adhered to the building component. The protective lath has the edge of a reinforcing fabric adhered thereto which is embedded in the plaster layer during wall plastering. In doing so the top plaster is applied, as before, across the metal rail and the adhesive strip located therebeneath and directly up to the building component, whereby no fixed connection to the building component is created in this portion. The problem known in practical applications, namely the so-called tearing effect, is thus not solved, since the vibrations emanating from such building components are transmitted directly to the top plaster. Furthermore, the reinforcing fabric used there is extended laterally outwardly from the connection between the metal rail and the adhesive strip so that the embedding thereof in the primer layer, which is of different thickness depending on the manufacturers' specifications, cannot be carried out with sufficient variability. Moreover, there is no protection against soiling or damaging of the building component.
German Utility Model 86 11 867 discloses a protective lath of plastics material which, due to its configuration and width, provides protection against soiling or damaging of the building component. However, this protective lath does not have a reinforcing fabric.
Subject matter of the invention is a protective lath for making a plaster joint to a building component of different material, in particular to a window or door frame, comprising the following features: part of plastics material; building component; embedded in the adjoining plaster; engagement; building component, which can be broken off by hand via a notch-type incision.
With the protective lath according to the invention any contact of plaster materials with the other building component is prevented. The vibrations originating from this building component are definitely kept away from the plaster coat and cannot be transmitted thereto. Upon conclusion of the wall plastering operation, the synthetic resin of the protective lath, which is the sole material still visible then, constitutes the alignment edge which is a neat limitation of the jamb plaster and renders possible easy and better care of the window or door frames later on as well.
The protective lath according to the invention can be employed in especially advantageous manner when the wall adjoining the building component is provided with a mineral or organic full thermal insulation system. In such systems the reinforcing fabric often is desirable in order to ensure anchoring of the plaster layer on the thermal insulation layer. In the region of the joint of the plaster layer to the other building component, an ingress of humidity is impossible. The bottom and top parts of the protective lath are preferably made of hard synthetic resin injected by an extruder into a continuous flow mold. The protective tab preferably is of T-shaped cross-section. The reinforcing fabric preferably consists of silk glass coated with synthetic resin. The protective tab, on the side facing away from the building component, preferably has an adhesive tape provided thereon so that a protective film for the window opening or for the door opening may be adhered there. The reinforcing fabric has the effect that the plaster neither in its interior nor towards the protective lath forms cracks and becomes leaky during shrinkage.
Claim 2 describes a first embodiment in which the latching location is loca
REFERENCES:
patent: 3290838 (1966-12-01), Van Bael
patent: 3765138 (1973-10-01), Bentle
patent: 4672787 (1987-06-01), Murphy
patent: 4912899 (1990-04-01), Plasker et al.
Nguyen Kien
Scherbel David A.
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