DE202015102067U1 - Exterior wall element in wooden frame construction - Google Patents

Abstract

Exterior wall element in wooden frame construction with a bolt mechanism of vertically and horizontally arranged structural timbers, which is planked with an outer wall shell and an inner wall shell and the inner wall shell a windproof layer, hereinafter referred to as windproof, comprises, characterized in that the inner wall shell has a further, second wind tightness, the is arranged at a distance from the first windproofness.

Description

The invention relates to exterior wall element in wooden frame construction with a timberwork with vertically and horizontally arranged construction timbers, which is planked with an outer wall shell and an inner wall shell and the inner wall shell comprises a windproofness.

Exterior wall elements in wooden frame construction are known from prefabricated houses in various designs. The framework consists of a system of mostly vertical, vertical construction timbers, which are held in position relative to each other by horizontal construction timbers arranged in a plane with the vertical construction timbers. The bolt works are covered with slabs on both sides, so that a load-bearing and windproof outer wall element is created. In this case, the outer and the inner planking are adapted to the respective requirement as weather-exposed outer wall shell or as room-side inner wall shell.

A typical outer wall construction in wood frame construction is for example in the DE 20 2004 018 467 U1 described. There, the inner planking of the bolt works on a plasterboard or chipboard. Between the planking and the bolt work, a vapor barrier layer of a film or layer is used. The outer planking usually form chipboard on which further elements are mounted for the subsequent final layer, which may consist of a plaster. Alternatively, wall constructions of such outer wall elements are also supplemented by a solid outer wall shell. In the interstices of the framework, in other versions alternatively or additionally also in a position between bolt work and outermost layer, according to the energy saving specifications, a thermal insulation, usually on mineral wool basis, introduced.

The wall elements are usually made windproof to protect the insulation and to protect against the penetration of cold outside air. In order to prevent the convection of moist warm room air in the wall construction and in the insulation and a concomitant moisture through moisture content of the room air, the inner wall shell is also made airtight. To produce a windproof and airtight wall construction, an outer wall element has a so-called vapor barrier or a vapor barrier. As a vapor barrier wood-based panels are often used, the joints and joints are provided with an airtight seal.

In order to prevent breakthrough of the vapor barrier by installing in the wall and to be executed on the inner wall surface installations, such as power lines, sockets or the like, in some cases so-called construction levels are arranged. In this case, a scattering is arranged relative to the windbreak inside, moved in the spaces between the installations and from there, without breaking the wind barrier through the innermost, the installation level to the interior bounding planking led there and switches and boxes can be installed. Despite this separation between wind barrier and innermost planking is achieved with such a wall structure not sufficiently windproof construction.

The invention has for its object to provide an outer wall element, with which the desired windproofness can be achieved.

To solve the task, an outer wall element according to claim 1 is proposed. Advantageous embodiments are described in the related dependent claims.

According to the invention, the Innwandschale is executed with two wind tightness, which are spaced from each other. Although even a wind-tightness must meet the requirements, it has been found that only with a double windproofness with separate layers, the desired wind-tightness is achieved.

The separation of the two wind tightness offers the possibility of additional thermal insulation or other complementary measures that are beneficial within the inner wall shell. In the simplest case, the distance over the holder of the windproof layer, according to the embodiment described below, for example, be the gypsum fiber board below the film level. The separation also offers a higher variability in the designs and the materials of both layers to the respective requirements, such as load capacity, rigidity, processing, surface quality, possible additions and attachments and more.

By, for example, according to an embodiment of the outer wall element at least the outer of the two wind tightness is performed by an airtight coarse chipboard, the requirements for the effective production of the first windproofness and the option of prefabrication of the outer wall element can be met.

For the wind-barrier layer, a windproofness in an outer wall construction, the used elements such as plates and Foils and materials are known to be so interconnected and mounted in the outer wall member that air passages between the individual elements and at transitions to adjacent components are closed. In this sense, the description of the windproofness of "a" chipboard includes that it may consist of several elements that are windproof connected to each other, for example glued, and in this state executed in the outer wall element can be considered as a plate.

Coarse particle board are made of long, slender, dried and wetted with wood chips and have due to this structure a high flexural strength and a high water vapor transmission resistance.

For the inner of the two wind tightnesses, in a further embodiment of the outer wall element alternatively a gypsum fiber board in conjunction with a windproof film plane or another coarse chipboard is used.

The latter again offers the advantage of effective processing and high strength as well as moisture resistance, but is less suitable for processing by non-professionals such as builders.

A gypsum fiber board also offers very good values in terms of strength, but is easier to process. A gypsum fiberboard, in contrast to a gypsum board otherwise used for the inner wall shell, will provide fiber reinforcement in the gypsum matrix, giving it much greater stability and accommodating higher loads. The latter is particularly advantageous for the inner wall shell, as loads can be attached directly with less effort. Another advantage is the very smooth and closed surface and the high surface hardness of the gypsum fiber board, which makes it very suitable as an inner planking of the outer wall element, since surface qualities of the plate system of quality level Q3 can be achieved, which is favorable even in the case that a double planking in conjunction with a gypsum plaster board attached to the gypsum fiberboard. Another advantage for the inner planking is that gypsum fiber boards as non-combustible building material (building material class A2 after DIN EN 13501 and after DIN 4102 ) and suitable for wet rooms.

This gypsum fiber board is designed by a, regularly arranged on the interior facing surface of the plate windproof film as windproof. Both components together realize a wind-tightness, which is not bound to the extent of a film alone to the grid of the underlying construction, such as the scattering of an installation level.

By contrast, the use of the film offers the advantage of direct connection to the adjacent components, such as the ceiling or beam layer, as explained in more detail below.

The windproof embodiment of the outer wall element is in particular by a windproof connection of both the inner and the outer wind tightness to each adjacent to these components effectively. Here, the windproof connection is made to a windproof layer of the respective adjacent component. In this way it is prevented that outside air, which is in contact with the inner wind-tightness of the outer wall element, can not escape from the adjacent component, possibly far away from the outer wall element. As components are generally understood walls, ceilings, roofs, windows, doors or the like. Such connections can be made by transitions of the film plane to a windproof position of the adjacent component or by separate windproof pads at the transitions between the wind-tightness of the outer wall member and the windproof layer of the adjacent component. According to the invention, both wind tightnesses are connected in a windproof manner separately, that is, individually, with the respectively adjacent component.

In a further embodiment, passages, which are introduced, for example, for switches and boxes of the electrical installation in the interior of the two wind tightness or passages of sanitary installation are sealed windproof. For this, windproof components of the respective trade or windproof bonds can be used.

According to a further embodiment of the outer wall element, the distance between the two wind tightnesses can be realized by a scattering material, which is connected at least to the outer windproofness. Regularly, the scattering will also be associated with the inner wind-tightness to hold them. In the present in the level of scattering cavities electrical and plumbing installations or other and / or a further layer of thermal insulation can be performed.

In a further embodiment, cavities of the bolt work and / or, if present, the cavities between the scattering material are at least partially filled with rock wool. Due to the knowledge of the insufficient airtight design of a wall element with only one windproofness, this material proves to be outside in the planes One and / or two wind tightness as an advantage, since rock wool is suitable for wet rooms.

In addition, rock wool has, in addition to the increasingly required high thermal insulation properties, good soundproofing properties for both airborne and structure-borne noise. The suitability in fire protection and in wet rooms described for the inner planking with gypsum fiber boards is complemented by the use of rock wool. Here, the high melting temperature of around 100 ° C and the water-repellent and vapor-permeable properties of rock wool are an advantage.

The invention will be explained in more detail with reference to embodiments. The accompanying drawing shows in

1 a preferred embodiment of the structure of an outer wall element according to the invention and

2 the junction of the outer wall element with a floor ceiling.

The outer wall element 20 according to 1 shows from the outside 1 inside 2 the following structure:
The outer wall shell 3 consists in the execution example of a multi-layer, optionally reinforced exterior wall plaster 15 which is on a soft wood fiber board 16 is applied. The latter is directly on the construction timbers 6 of the bolt works 4 attached. Alternatively, other of the known outer wall shells 3 used, such as wood cladding or Verklinkerungen.

The bolt works 4 The wooden frame construction consists of room-high, vertical construction timbers 6 passing through horizontal construction timbers 6 (not shown) in a plane with the vertical construction timbers 6 are arranged to be held in position to each other. The interstices of the bolt works 4 are through thermal insulation 14 , For example, rock wool infused.

The inside 2 following inner wall shell 5 includes the external windproofness 7 , which is executed in the embodiment by windproof glued together coarse chipboard. Optionally, another windproof layer can be used.

On the outside windproofness 7 is a scattering 9 mounted as the installation level 8th serves. The cavities between the scattering 9 is used for the sanitary and electrical installation (not shown). Remaining cavities are insulated by a further layer of thermal insulation 14 filled, for example, also made of rock wool.

The installation level 8th is due to the second, the inner windproofness 10 completed. This consists of gypsum fiber boards 11 , on which a film is attached flat, so that this is a closed film plane 12 forms. Optionally, the inner windproofness 10 be executed by another windproof layer.

The inner wall shell 5 gets inside 2 through plasterboard 13 completed. In the situation of inner windproofness 10 and plasterboard 13 the passages (not shown) for the electrical and plumbing installations are introduced and sealed windproof as described above.

2 represents the connection of two outer wall elements 20 . 20 ' according to the 1 In the area of a ceiling support to one another and to the ceiling plane. Reference is made to the above explanations for the construction of the two outer wall elements, however, both outer wall elements 20 . 20 ' a common, continuous external plaster 15 with underlying soft wood fiber board 16 to have. In the illustrations, the same components are identified by the same reference numerals.

The ceiling position is through ceiling beams 21 formed with a frontal wood 22 are connected, so this with the bolt works 4 both outer wall elements 20 . 20 ' flush. The ceiling beams 21 each have appropriate ceiling panels on their top and bottom 24 on. As ceiling tiles 24 For example, coarse particle boards can be used. Other known designs are alternatively possible.

The outer wind tightness 7 both outer wall elements 20 . 20 ' each extend to the deck beams 21 , Between the ceiling beams 21 are foil tapes 23 arranged, each with both external wind tightness 7 and with the ceiling beams 21 windproof are glued, so that in the area of the ceiling support a closed outer windproofness 7 arises.

The inner wind tightness 10 both outer wall elements 20 . 20 ' each have a windproof connection to the ceiling panels 24 on, by the film levels 12 by means of further foil tapes 23 with the ceiling tiles 24 windproof are glued. In the illustrated embodiment, both ceiling tile 24 even be designed windproof. If this is not the case, for example, if for the ceiling tops a coarse chipboard and the bottom gypsum boards are mounted on a counter battens, the foil strip from the bottom wall element 20 up to the upper ceiling plate 24 to pull (not shown), since only this is windproof. Alternatively, the film levels 12 to on the appropriate ceiling tiles 24 be guided and glued there.

LIST OF REFERENCE NUMBERS

1

Outside

2

Inside

3

Outside wall shell

4

boltwork

5

Inner wall shell

6

construction timber

7

external windproofness

8th

installation level

9

Streulattung

10

inner windproofness

11

Gypsum fiber board

12

film plane

13

Plasterboard

14

thermal insulation

15

exterior plaster

16

Wood fiber board

20, 20 '

Outer wall element

21

ceiling beams

22

end grain

23

foil tape

24

ceiling panels

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 202004018467 U1 [0003]

Cited non-patent literature

• DIN EN 13501 [0015]
• DIN 4102 [0015]

Claims (8)

Exterior wall element in wooden frame construction with a bolt mechanism of vertically and horizontally arranged structural timbers, which is planked with an outer wall shell and an inner wall shell and the inner wall shell a windproof layer, hereinafter referred to as windproof, comprises, characterized in that the inner wall shell has a further, second wind tightness, the is arranged at a distance from the first windproofness. External wall element according to claim 1, characterized in that at least the outer of the two wind tightness is performed by an airtight coarse chipboard. External wall element according to one of the preceding claims, characterized in that the inner of the two wind tightness is formed by a gypsum fiber board in conjunction with a windproof film plane or by another coarse chipboard. External wall element according to one of the preceding claims, characterized in that the two wind tightnesses are connected windproof separately with a windproof layer of a respective adjacent components. External wall element according to one of the preceding claims, characterized in that in the interior of the two wind tightness passages are arranged, which are sealed windproof. External wall element according to one of the preceding claims, characterized in that between the two wind tightness serving as a spacer scattering is arranged, which is connected at least with the outer wind-tightness. External wall element according to one of the preceding claims, characterized in that the cavities of the bolt work are at least partially filled with rock wool. External wall element according to one of claims 6 or 7, characterized in that the cavities between the scattering material are at least partially filled with rock wool.

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