DE2746651C3 - Method for increasing the thermal insulation of the outer walls of half-timbered houses and device for carrying out the method - Google Patents

Description

The invention relates to a method for increasing the thermal insulation of the outer walls of half-timbered houses using foam.

It is known to increase the thermal insulation of the outer walls of half-timbered houses with foam panels to attach. However, these foam sheets hide the framework, so that the external impression of the Half-timbered house is changed.

This is not in line with the demands made by the preservation authorities.

The invention is therefore based on the object of a method for increasing the thermal insulation of the To create outer walls of half-timbered houses, with which, on the one hand, thermal insulation is achieved, on the other hand, however, the characteristic of the half-timbered house is retained.

This is achieved according to the invention in that first the wall filling located between the bars of the compartment is peeled off on the outside by a certain layer thickness and then liquid, faster sweetening foam is introduced into the space thus created. In this way Meibt · '..'. ·. Half-timbered irot /. the

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Thermal insulation visible. In this process, the procedure can either be that an A box-shaped formwork was attached to the compartment from the outside! into which the foam is filled or the outside of the bars of the compartment are covered with a film, on top of the compartment and those with the film The liquid foam is sprayed onto the bar provided, the solidified foam is along the Cut the edge of the bar and pull the film off the outside of the bar together with the foam.

This latter method is particularly suitable when beams are more complicated within the subject Shape should be present.

A foam is used that adheres well and solidifies in a very short time. For example, it can Be polyurethane.

The invention also relates to an apparatus for performing the method according to claim 2. It is characterized in that the box-shaped formwork is attached to the beam of the compartment by a Plate is formed and that sealing strip in the angle between the inside of the formwork and the beam are arranged.

Two exemplary embodiments are shown in the drawing.

F i g. 1 shows a perspective view of a section through a framework wall with a box-shaped one Formwork;

F i g. 2 shows a section through a framework wall, the compartments of which are provided with a foam layer which has been produced by means of the film covering the bars.

In Fig. 1, the beams of the framework are denoted by 1. Each compartment is with a wall panel 2, for Example of clay, filled in.

In order to carry out the method, a layer 3 of this clay is first peeled off. Then will a box-shaped formwork is applied to the subject. This consists essentially of a plate 4, which is attached to the beam of the compartment is attached and for the purpose of sealing in the areas of the edges of the Bar can be provided with a sealing strip 5. After creating the box-shaped formwork through openings 6 in the plate 4, liquid foam is filled.

In order to be able to observe the correct filling of the box-shaped formwork with foam, the plate 4 can be made of transparent material. After the foam has hardened, the Plate 4 removed and a layer of plaster applied.

Another method is shown schematically in FIG. Here, too, the subject initially becomes a Layer 8 of the wall filling - usually clay - peeled off. Then the bars 1 of the compartment provided with a plastic film 7. A layer of foam is then sprayed on. After hardening the foam layer, incisions are made in the foam layer in the area of the beam edges introduced and then peeled off the film together with the foam layer on the film, so that the bars are visible again. Here, too, you can add a Plaster layer can be applied.

For this purpose 1 leaf

Claims (6)

Patent claims: 1. Method of increasing the thermal insulation of the outer walls of half-timbered houses under Use of foam, characterized in that first the wall filling (2) located between the bars (1) of the compartment is peeled off on the outside by a certain layer thickness and then into the space created in this way liquid, rapidly solidifying foam is introduced. 2. The method according to claim 1, characterized in that one on the subject from the outside box-shaped formwork is attached, into which the foam is filled. 3. The method according to claim 1, characterized in that the outer sides of the bars (1) of the Subject to be covered with a film (7) that on the subject and the bars provided with the film (7) the liquid foam is sprayed on so that the solidified foam along the edge of the beam is cut and that the film (7) together with the foam from the outside of the bar is deducted. 4. The method according to any one of claims 1 to 3, characterized in that on the foam layer a layer of plaster is applied on the outside. 5. The method according to any one of claims 1 to 4, characterized in that the foam Polyurethane is used. 6. Apparatus for performing the method according to claim 2, characterized in that the box-shaped formwork is formed by a plate (4) attached to the beam (1) of the compartment and that in the angle between the inside of the formwork and the bar (1) sealing strips (5) are arranged.