DE102015009853A1 - Covering system, in particular heat and / or sound insulation system - Google Patents

Abstract

A cladding system (1), in particular heat and / or sound insulation system, using natural cork material, should be environmentally friendly using natural cork and also suitable for building exterior facades. This is achieved by providing a first, inner thick layer (2), which is provided as an insulating layer of water vapor-expanded cork and a second outer thin layer (3) is provided, which is designed as a protective layer, wherein the inner Layer (2) comprises cork particles which are larger than the cork particles of the outer layer (3).

Description

Technical area

The invention relates to a cladding system according to the preamble of claim 1.

In the field of thermal insulation systems systems made of natural materials, such as cork are becoming increasingly popular. In fact, thermal insulation systems for external insulation of houses with polystyrene foam have the disadvantage that they contain partially banned flame retardants, such as hexabromocyclododecane (HBCM), which cause costly disposal. In addition, this material burns, which is very disadvantageous.

State of the art

From the DE 380 39 02 A1 is a cork composite element for the insulation between rafters in the pitched roof known.

The DE 2020 09 00 84 93 A describes an insulating layer which may comprise expanded cork.

Object of the invention, solution, advantages

The invention has for its object to provide a cladding system using natural cork that is environmentally friendly and also suitable for building exterior facades.

This object is achieved by a system having the features specified in the characterizing part of claim 1 in conjunction with its preamble features.

The two-layer system used on the one hand creates an insulation solution which is not flame-retardant or is not flammable. The natural grain granules of the outer layer are not flammable. Even if the outer protective layer is damaged, for example by mechanical influences, the inner layer burns only with difficulty or hardly. In case of fire, there is no danger that it will extinguish itself and release no toxic gases.

The outer layer provides a solid surface and a long life of the system. The inner layer ensures a high heat insulation. Since no toxic substances are used and high insulation values are achieved, the solution according to the invention is very environmentally friendly. In addition, a disposal of the insulation layer is completely unproblematic, since only natural substances are used.

Also, the system according to the invention has excellent sound insulation values, so that it is best suited for sound insulation.

Surprisingly, the system according to the invention has further advantages, such as avoiding condensation. It is flexibly elastic and has a high adhesion to concrete, brick and galvanized material.

The system according to the invention is suitable for sealing walls and outer wall, thermal insulation of facades, acoustic insulation, prevention of transmission of sound noise and vibrations. The system provides an elastic coating to prevent small cracks or splits. The system protects against moisture and condensation. The system can be used as an adhesive for various materials. It creates a foundation for paving, tiles, tiles or parquet. It is suitable as protection for metal surfaces.

It is also possible an interior trim, z. B. on plaster or wood. It is used for mold prevention indoors, for the acoustic and thermal insulation of staircases for the removal of moisture stains, for the sealing of materials, for vibration prevention z. As to galvanized sheets, for use in boat building, for coating of aluminum in boat building or for decoration.

The system is very durable and weather resistant to sunlight, insects, chemicals and acids. It has no solvents or silicones.

Advantageous embodiments of the invention

Further advantageous embodiments of the invention are characterized in the subclaims.

In an advantageous development of the system according to the invention it is provided that the outer, thin layer consists of a mixture of cork material and an acrylic material. The acryl material ensures a very firm connection of the small cork particles and a high elasticity. This makes a cladding very abrasion resistant and durable.

A further preferred embodiment of the invention is characterized in that the outer, thin layer has a proportion of 5% to 20%, in particular 10%, of acrylic material, the remaining portion being natural cork granules. This mixture is optimal for exterior facades.

In order for the system to be free of organic solvents, it is further envisioned that the inner, thin layer comprises a water-based acrylic resin.

In another development of the system according to the invention it is provided that an average particle size of the inner layer is at least 10 times, preferably at least 50 times, as large as an average particle size of the outer layer. The inner layer may consist of cork granules or cork meal, which is then baked with the supply of hot steam and under 1 bar pressure in an autoclave. The cells enlarge or expand. Due to its own resin Suberin, which is released by the high temperature, the particles combine with each other.

Preferably, a particle size of the outer layer is substantially 1 mm to max. 5 mm, wherein a particle size of the inner layer is substantially 6 mm to 20 mm. This ratio is optimal for exterior facades.

Another very important preferred measure involves applying a coat of paint on the outer layer. This layer provides further strength and color matching.

For external insulation has proven to be very advantageous that the inner, thick layer is about 2 to 8 cm, in particular about 4 cm, while the outer thin layer is 2 mm to 8 mm, in particular about 4 mm.

A particularly strong and durable connection results when the inner layer is screwed to a carrier, while the outer layer is then applied with a trowel or sprayed with a spray gun.

embodiment

An embodiment will be explained in more detail with reference to the drawings, wherein further advantageous developments of the invention and advantages thereof are described.

Show it:

1 a perspective view of a system according to the invention,

2 a cork structure of an inner layer of the system according to the invention,

3 a cork structure of an outer layer of the system according to the invention

4 a sectional view of the system, and

5 another illustration of the system with further layers.

1 shows a cladding system 1 for a heat and / or sound insulation system. This uses natural cork material.

The system comprises a first, inner thick layer 2 , which is intended as an insulating layer of steam-expanded cork. Furthermore, the system includes 1 a second, outer thin layer 3 present, which is designed as a protective layer. The inner layer 2 includes cork particles that are larger than the cork particles of the inner layer. 2 illustrates the cork structure.

The outer, thin layer 3 that also in 3 is shown, consists of a mixture of cork material and an acrylic material. The outer, thin layer 3 has a proportion of 5% to 20%, in particular 10% acrylic material, the remaining portion being natural cork granules. Furthermore, the inner, thin layer comprises 3 a water-based acrylic resin.

4 shows the system with both layers 2 and 3 and both cork structures. The average particle size of the inner layer is at least 10 times, preferably at least 50 times as large as the average particle size of the outer layer.

The one particle size of the outer layer 3 is essentially 1 mm to 5 mm, the particle size of the inner layer 2 is substantially 6 mm to 20 mm.

As 4 shows, on the outer layer, a color layer 4 applied.

As a color, commercial facade paint can be used.

Between the layers 2 and 3 can be a tie layer 5 to be available.

The inner, thick layer 2 is about 2 to 8 cm, in particular about 4 cm, while the outer thin layer is 3 mm to 8 mm, in particular about 4 mm.

The inner layer 2 is bolted to a support while the outer layer 3 then applied with a trowel or sprayed with a spray gun.

The paneling system 1 serves for a building exterior paneling.

LIST OF REFERENCE NUMBERS

1

cladding system

2

inner layer

3

Outer layer

4

coat of paint

5

link layer

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 3803902 A1 [0003]
• DE 202009008493 A [0004]

Claims (10)

Cladding system ( 1 ), in particular heat and / or sound insulation system, using natural cork material, characterized in that a first, inner thick layer ( 2 ), which is provided as an insulating layer of steam-expanded cork and a second, outer thin layer ( 3 ), which is designed as a protective layer, wherein the inner layer ( 2 ) Cork particles larger than the cork particles of the outer layer ( 3 ) are. Cladding system ( 1 ) according to claim 1, characterized in that the outer, thin layer ( 3 ) consists of a mixture of cork material and an acrylic material. Cladding system ( 1 ) according to claim 2, characterized in that the outer, thin layer ( 3 ) has a proportion of 5% to 20%, in particular 10%, of acrylic material, the remaining portion being natural cork granules. Cladding system ( 1 ) according to claim 2 or 3, characterized in that the outer, thin layer ( 3 ) comprises a water-based acrylic resin. Cladding system ( 1 ) according to one of the preceding claims, characterized in that an average particle size of the inner layer ( 2 ) is at least 10 times, preferably at least 50 times as large as an average particle size of the outer layer ( 3 ). Cladding system ( 1 ) according to one of the preceding claims, characterized in that a particle size of the outer layer ( 3 ) is substantially 1 mm to 5 mm and a particle size of the inner layer ( 2 ) is substantially 6 mm to 20 mm. Cladding system ( 1 ) according to one of the preceding claims, characterized in that on the outer layer ( 3 ) a color layer is applied. Cladding system ( 1 ) according to one of the preceding claims, characterized in that the inner, thick layer ( 2 ) is about 2 to 8 cm, in particular about 4 cm, while the outer thin layer ( 3 ) Is 2 mm to 8 mm, in particular about 4 mm. Method for applying a cladding system ( 1 ) according to one of the preceding claims, characterized in that the inner layer ( 2 ) is bolted to a support while the outer layer ( 3 ) is then applied with a trowel or sprayed with a spray gun. Use of a cladding system ( 1 ) according to one of the preceding claims as a heat and / or sound insulation system, in particular for a building exterior cladding.

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