CH690335A5 - Wooden cellulose insulation plate - Google Patents

Wooden cellulose insulation plate Download PDF

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Publication number
CH690335A5
CH690335A5 CH02678/96A CH267896A CH690335A5 CH 690335 A5 CH690335 A5 CH 690335A5 CH 02678/96 A CH02678/96 A CH 02678/96A CH 267896 A CH267896 A CH 267896A CH 690335 A5 CH690335 A5 CH 690335A5
Authority
CH
Switzerland
Prior art keywords
insulation board
insulation
density
weight
percent
Prior art date
Application number
CH02678/96A
Other languages
German (de)
Inventor
Bernd Unger
Original Assignee
Bernd Unger
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to DE1995217568 priority Critical patent/DE29517568U1/en
Application filed by Bernd Unger filed Critical Bernd Unger
Publication of CH690335A5 publication Critical patent/CH690335A5/en

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00Coverings or linings, e.g. for walls or ceilings
    • E04F13/02Coverings or linings, e.g. for walls or ceilings of plastic materials hardening after applying, e.g. plaster
    • E04F13/04Bases for plaster
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B26/00Compositions of mortars, concrete or artificial stone, containing only organic binders, e.g. polymer or resin concrete
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L97/00Compositions of lignin-containing materials
    • C08L97/02Lignocellulosic material, e.g. wood, straw or bagasse
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74Heat, sound or noise insulation, absorption, or reflection . Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/76Heat, sound or noise insulation, absorption, or reflection . Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
    • E04B1/762Exterior insulation of exterior walls
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74Heat, sound or noise insulation, absorption, or reflection . Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/88Insulating elements for both heat and sound
    • E04B1/90Insulating elements for both heat and sound slab-shaped
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/00474Uses not provided for elsewhere in C04B2111/00
    • C04B2111/00612Uses not provided for elsewhere in C04B2111/00 as one or more layers of a layered structure
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74Heat, sound or noise insulation, absorption, or reflection . Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B2001/742Use of special materials; Materials having special structures or shape
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74Heat, sound or noise insulation, absorption, or reflection . Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B2001/742Use of special materials; Materials having special structures or shape
    • E04B2001/746Recycled materials, e.g. made of used tires, bumpers or newspapers
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74Heat, sound or noise insulation, absorption, or reflection . Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82Heat, sound or noise insulation, absorption, or reflection . Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B2001/8263Mounting of acoustical elements on supporting structure, e.g. framework or wall surface
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74Heat, sound or noise insulation, absorption, or reflection . Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82Heat, sound or noise insulation, absorption, or reflection . Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84Sound-absorbing elements
    • E04B2001/8457Solid slabs or blocks
    • E04B2001/8461Solid slabs or blocks layered
    • Y02W30/97

Abstract

The wooden fibre insulation plates (12) are fixed onto the outside of a wall (10) by plugs (28). The plates are joined together by tongue and groove joints (30). A hydrophobic mineral coating (14), which is an integral material frame (16), is applied to the plates. This frame then receives a coating (18). The insulation plate in wooden cellulose which is usable as support filler or rendering has the following composition: 90 to 95% by weight of ligno-cellulose formed from chemically untreated wood fibres, 0.2 to 0.7 wt.% aluminium sulphate for activating the wooden fibre binder up to 2 wt.% glue, the remainder being water. The density of the plate is between 150 and 280 kg/m<3>. The plate is formed from a layer of constant density or from several layers of different density. The insulation plates have accepted insulation properties and can be used as support rendering or filler.

Description


  
 



  The invention relates to an insulation board made of lignocellulose.



  Lignocellulose insulation boards, which are also called wood fiber insulation boards or wood fiber insulation boards, are formatted soft or dry fiber boards, in which the fiber material is shaped and, if necessary, dried. In construction, such insulation panels are used for sound and thermal insulation.



  It is also known to use wood wool boards as a plaster base. For use as a plaster base, the wood wool is mixed with mineral binders, e.g. Magnesite, cement, plaster and the like mixed. This addition of binders affects the porosity of the material and increases the density (specific weight) of the material.



  The invention has for its object to provide an insulation board made of lignocellulose, which has the advantageous properties of conventional insulation boards, is suitable as a plaster base, is biologically valuable and can be disposed of ecologically without any problems.



  This object is achieved according to the invention by an insulation board made of lignocellulose with the features of claim 1.



  Advantageous embodiments of the invention are specified in the subclaims.



  The invention has succeeded in creating an insulation board made of lignocellulose, which not only has the known excellent heat and sound insulation properties, but which is also breathable and breathable, so that optimal indoor climate conditions can be achieved. The insulation board is also suitable as a plaster base. The plaster can be applied directly to the insulation board, so that when using a suitable mineral plaster, the breathability is effectively retained even with the plastered insulation board.



  The insulation board is made from residual wood, which is produced in sawmills in the form of rinds and chisels, without chemical additives. A wood pulp is formed from the mechanically shredded wood material with the addition of water. Aluminum sulphate (alum) is added to this pulp, which merely acts as a catalyst for activating the wood-based binder lignin. The wood pulp is formatted and dried, the natural lignin being the binding agent for the insulation board. The insulation board therefore consists only of ecologically harmless natural materials, so that optimal building physiological properties are guaranteed. Disposing of the insulation boards and the residues falling off when the insulation boards are cut is also ecologically problem-free.



  If the insulation boards are made up of several layers, as is advantageous for different purposes, a physiologically harmless glue is used to bond the individual layers together. A polyvinyl acetate (PVAC) glue is expediently used.



  The insulation board can be used for different purposes due to its combination of plaster base properties and building physiological properties. The insulation board can be applied as an exterior facade board to masonry walls of all kinds. In wooden structures with load-bearing planking, the insulation board can be used as a plaster base board. In half-timbered buildings, the insulation board can be used for the infill, whereby it serves both for thermal insulation and as a plaster base. Appropriately, a stable base, e.g. assembled from wood-based panels. The insulation board can also be used as internal insulation for external walls and as a support for the interior plaster.



  In order to reliably exclude undesired thermal bridges, the insulation board is preferably provided with a tongue and groove connection running around the outer edge.



  In addition to the good thermal insulation properties, i.e. a low thermal conductivity, a high heat storage capacity and a high moisture storage capacity.



  The high heat storage capacity ensures heat regulation for the indoor climate. Summer outside heat only penetrates into the interior with a considerable time delay, while the heat is stored in the insulation board for a long time at low outside temperatures.



  When the insulation board is installed on the inside of the outside walls, the high moisture storage capacity of, for example, 20 percent by weight with a basis weight of 12 kg / m 2 results in a high absorption of room humidity, whereby the dew point in the insulation board is shifted to the outside, so that even under unfavorable conditions, moisture inner wall surfaces can be avoided.



  A typical example of the use as internal insulation are half-timbered structures, particularly in the case of renovations of old buildings, in which external wall insulation is not possible from the point of view of monument conservation.



  Another advantage of the insulation board is its flexibility. If the insulation board is applied to structures that are subject to changing stress conditions, e.g. Wooden stand constructions and half-timbered buildings, so the stresses that arise can be reduced due to the special wood fiber structure on the entire surface of the insulation board, and not only in the edge zone area of the insulation board. The tensions can thus be absorbed over a large area, so that the risk of cracks in the plaster layer applied to the insulation board is greatly reduced.



  In a simple version, the insulation board can be a single board with the same density of the material. Such a single-layer insulation board can preferably be used if this insulation board essentially serves as a plaster base and the indoor climate and building physiological properties play a minor role.



  The insulation board is preferably constructed in three layers. A contact layer of lower density serves to make contact with the masonry or the wall to which the insulation board is applied. The lower density of the contact layer means softer material properties, so that the contact layer can flexibly adapt to unevenness in the surface. A stabilization storage layer, which has a higher density, adjoins the contact layer. The stabilization storage layer serves to improve the insulation properties and to increase the heat and moisture storage capacity. The outer layer is followed by a plaster base layer, which in turn has a lower density. Due to its lower density, the plaster base layer forms a porous fibrous substrate, which ensures better adhesion of the plaster.

   If a larger board thickness is required, the multilayer structure can also be repeated several times.



  The invention is explained in more detail below on the basis of exemplary embodiments. Show it
 
   Fig. 1 shows the structure of an outer wall with the insulation according to the invention and
   Fig. 2 shows a section through a three-layer insulation board.
 



  In Fig. 1 28 wood fiber insulation panels 12 are attached to the outside of a masonry 10 by means of dowels. The insulation panels 12 are joined together with tongue and groove connections 30 without joints. A hydrophobic mineral reinforcement plaster 14 is applied to the insulation boards 12, in which a reinforcement fabric 16 is embedded. A finishing plaster 18 can finally be applied to the reinforcement plaster 14.



  Residual wood is used to produce the insulation board 12, which accumulates in the form of rinds and splinters when sawing softwoods in sawmills. This residual wood is mechanically fiberized and, with the addition of water and aluminum sulfate, processed into a wood pulp, which is then formatted and dried. Then the insulation panels 12 are cut and provided on the edge with tongue or groove 30 for seamless assembly.



  The insulation board 12 has a density of 150 to 280 kg / m 3.



  2 shows an exemplary embodiment of the insulation board 12, in which this insulation board 12 is constructed from three layers.



  The first layer is a contact layer 20 with which the insulation board 12 is applied to the substrate to be insulated, e.g. the masonry 10 is applied. The contact layer 20 has a density of 155 to 180 kg / m 3 (according to DIN 68755) and a thickness of 20 mm. The middle layer is a stabilization storage layer 22. The stabilization storage layer 22 has a density of 180 to 210 kg / m 3 and a thickness of 20 mm. The outer layer is a plaster base layer 24. The plaster base layer 24 has a density of 155 to 190 kg / m 3 and a thickness of 20 mm. The three layers 20, 22 and 24 are glued together by means of a physiologically harmless PVAC glue 26. In order to keep the amount of glue low, the glue is preferably applied in diagonal strips.



  The following proportions of the individual components result for the insulation board 12:
 Softwood approx. 93.0 percent by weight
 Water approx. 5.0 percent by weight
 PVAC glue approx. 1.5 percent by weight
 Aluminum sulfate approx. 0.5 percent by weight

Claims (8)

    1.Lignocellulose insulation board, which is characterized for use as a plaster base by the following components:  90 to 95 percent by weight lignocellulose from chemically untreated wood fibers,  0.2 to 0.7 percent by weight aluminum sulfate to activate the lignin content of the wood fibers,  up to 2% by weight of physiologically harmless glue, the rest water  and a density of 150 to 280 kg / m <3> according to DIN 68755.
2. Insulation board according to claim 1, characterized by the components:  approx. 93.0 percent by weight lignocellulose,  approx. 0.5 percent by weight aluminum sulfate,  approx. 1.5 weight percent glue,  approx. 5.0 weight percent water.
3. Insulation board according to claim 1 or 2, characterized in that the wood fibers come from softwoods.
4th
 Insulation board according to one of claims 1 to 3, characterized in that the insulation board (12) consists of a layer of constant density.
5. Insulation board according to one of claims 1 to 3, characterized in that the insulation board (12) is made up of several layers (20, 22, 24) of different densities.
6. Insulation board according to claim 5, characterized in that the insulation board (12) has three different layers, a contact layer (20) with a density of 155 to 180 kg / m 3, a stabilization storage layer (22) with a density of 180 up to 210 kg / m <3> and a plaster base layer (24) with a density of 155 to 190 kg / m <3>.
7.
 Insulation board according to claim 5 or 6, characterized in that the individual layers (20, 22, 24) are glued to one another by means of the glue (26), the glue (26) preferably being applied diagonally.
8. Insulation board according to one of the preceding claims, characterized in that the insulation board (12) has at its edge grooves and tongues (30) for seamless assembly of the insulation boards (12).  
CH02678/96A 1995-11-07 1996-10-30 Wooden cellulose insulation plate CH690335A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1995217568 DE29517568U1 (en) 1995-11-07 1995-11-07 Lignocellulose insulation board

Publications (1)

Publication Number Publication Date
CH690335A5 true CH690335A5 (en) 2000-07-31

Family

ID=8015066

Family Applications (1)

Application Number Title Priority Date Filing Date
CH02678/96A CH690335A5 (en) 1995-11-07 1996-10-30 Wooden cellulose insulation plate

Country Status (4)

Country Link
CH (1) CH690335A5 (en)
DE (1) DE29517568U1 (en)
FR (1) FR2740797B3 (en)
NO (1) NO964640L (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19839295C5 (en) * 1998-08-28 2006-09-21 Sto Ag Thermal insulation composite system and method for producing a thermal composite system
AT502046B1 (en) * 2004-08-04 2007-01-15 Zellulosedaemmstoffproduktion Sound absorbing element, method for its manufacture and cellulose supply device
DE202007018806U1 (en) * 2007-04-16 2009-06-04 Unger, Bernd Insulation Board
DE202008017276U1 (en) 2008-03-05 2009-04-23 Unger-Diffutherm Gmbh Kombinationsdämmplatte
DE202009001532U1 (en) 2009-02-06 2009-04-16 Unger-Diffutherm Gmbh insulation system

Also Published As

Publication number Publication date
FR2740797A3 (en) 1997-05-09
DE29517568U1 (en) 1996-01-11
FR2740797B3 (en) 1997-10-03
NO964640L (en) 1997-05-09
NO964640D0 (en) 1996-11-01

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