EP0518017B2 - Holzfaserplatte, Verfahren zu deren Herstellung und Verwendung derselben - Google Patents
Holzfaserplatte, Verfahren zu deren Herstellung und Verwendung derselben Download PDFInfo
- Publication number
- EP0518017B2 EP0518017B2 EP92105877A EP92105877A EP0518017B2 EP 0518017 B2 EP0518017 B2 EP 0518017B2 EP 92105877 A EP92105877 A EP 92105877A EP 92105877 A EP92105877 A EP 92105877A EP 0518017 B2 EP0518017 B2 EP 0518017B2
- Authority
- EP
- European Patent Office
- Prior art keywords
- layer
- wood fibre
- water
- board
- wood
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D12/00—Non-structural supports for roofing materials, e.g. battens, boards
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N1/00—Pretreatment of moulding material
- B27N1/006—Pretreatment of moulding material for increasing resistance to swelling by humidity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/08—Moulding or pressing
- B27N3/20—Moulding or pressing characterised by using platen-presses
Definitions
- the invention relates to a use of Fiberboard according to the preamble of claim 1.
- the invention further relates to a method of manufacture a wood fiber board according to the preamble of claim 6.
- Fibreboard is made from wood fiber or lignocellulose-containing fiber material.
- Raw material containing cellulose and hemicellulose in its fibrous, anatomical basic elements in the Disassembled in the form of individual fibers and fiber bundles.
- the fiber material is shaped, compressed and pressed. This is primarily the Matting of the fibers and the natural binding power utilized. (Ullmann's encyclopedia of technical chemistry, 4th edition, Weinheim, New York, 1976, volume 12, page 720).
- hard wood fiber boards with a bulk density of more than 800 kg / m 3 hard wood fiber boards with a bulk density of more than 800 kg / m 3 , medium hard wood fiber boards with a bulk density of more than 350 kg / m 3 to 800 kg / m 3 and porous wood fiber boards with a bulk density of 230 - 350 kg are used / m 3 differentiated.
- the manufacture of fiberboard is well known and involves the preparation of the raw material and the production of the wood chips, the pre-treatment by steaming, boiling or impregnating with Lyes, defibrillation, wet or dry processing of the fibers and subsequently in particular the formation a fiber mat, hot pressing in a wet or Dry press and aftertreatments, especially the thermal hardening (cf. Ullmanns Encyclopedia of technical chemistry, op. cit., page 720 ff.).
- Wood fiber hardboards are used especially for the construction of under-roof structures that are sealed against meteor water used and so far for so-called Cold roof constructions according to Figure 1, in which between the thermal insulation 2 and the one above the rafters 1 A ventilation space 4 is provided under roof 3.
- the object of the invention is therefore underlying a Using a To create fiberboard, which looks like one conventional hardboard can be used by means of which the condensation problem in the under-roof area is manageable.
- the water absorbent Layer thicker than the essentially waterproof one Layer.
- the vapor diffusion resistance the essentially waterproof layer due to their small thickness much deeper than a wood fiber hardboard of a similar overall thickness as the wood fiber board according to the invention; so can be Plate vapor diffusion resistance values below 50 achieve, while the values in conventional plates in usually in the range of 80 to 120.
- the water absorbing surface of the fibreboard with the characteristic for fiberboard from the screen press plate surface roughness originating in the manufacture Mistake.
- the Use as a sub-roof panel on a This rough plate side of the thermal insulation layer becomes the roof facing, which has not been the case so far because the rough side, as the anti-slip side, as Under the roof top has been relocated.
- the other, previously smooth plate side with one anti-slip embossed pattern is therefore now also possible the other, previously smooth plate side with one anti-slip embossed pattern.
- a method of making a Fibreboard for the use is according to claim 6 featured.
- FIG. 1 shows schematically the structure of a Cold roof construction with wood fiber hardboard as Under roof.
- the thermal insulation 2 is arranged, and is above this a ventilation space 4 is provided to remove moisture, which of the conventional wood fiber hardboards, which form the sub-roof 3 are not sufficiently taken up and can be dissipated.
- This insufficient Moisture absorption or vapor diffusion ability the the space-consuming ventilation space will still be deteriorated in that the conventional plates have a smooth side and a rough side (the when pressing out of the finely perforated sieve plate results) and for safety reasons (risk of slipping) with the laid smooth side against the thermal insulation 2 pointing Need to become.
- Counter battens 5 brick battens 6 and bricks 7.
- the preferred, space-saving roof construction is shown schematically in Figure 2, wherein same reference numerals same components as in Figure 1 demonstrate.
- the ventilation space 4 is in the warm roof not provided. This means that through the roof diffusing steam, which - depending on the outside and inside temperature - Above the thermal insulation 2 essential can cool and possibly condense from the plates of the sub-roof 3 first recorded and saved and can be let through as water vapor.
- Figure 3 shows a sectional view of a Fibreboard 30 with two layers.
- the less fat Layer 32 is structured like a conventional one Hardboard, i.e. this layer consists of short fibers or short fiber bundles of fine fraying.
- This dense hardboard is already on relatively good water repellency. To this property too can improve this layer during manufacture Water repellents are added; known and building biological Paraffin is particularly harmless.
- the thicker layer 31 is e.g. so constructed like a conventional medium-hard (also as semi-hard designated) fiberboard.
- This layer consists of long fiber bundles of fine defibrillation, which can be found in the Stretch out after eating again and one Layer with a relatively large number of pores and good water absorption and storage capacity.
- Another layer e.g. with the properties of a porous fibreboard for applications in extremely humid conditions conceivable.
- the surface 33 the plate 30 formed by the water-absorbing layer 31 is formed during manufacture on the screen press plate rests and with the characteristic Pattern is provided, as schematically in Figure 4a is indicated this pattern or that resulting from it resulting roughness of the surface leads to a substantial enlarged surface for the inclusion of Water is effective.
- this rough Lay against the thermal insulation This has not been done so far because the rough Side as anti-slip side as the outside of the Sub-roof was used.
- the Fibreboard for the use according to the invention is therefore preferably the other, previously smooth plate side with a non-slip Embossed pattern.
- the plate thickness is preferably approximately 6 mm chosen, with the two-layer variant the denser Layer 32 is approximately 1 mm thick and the other layer 31 is about 5 mm thick. This results in good vapor permeability, a large water storage capacity and a good seal against meteor water.
- the fiberboard In the manufacture of the fiberboard can first formed a nonwoven fabric in a known manner which corresponds to layer 31 after pressing, a fleece, which is a medium hard Fiberboard corresponds. This fleece is then a second fleece applied, which after pressing the Layer 32 corresponds, that is to say to form a hardboard made of wood fiber is executed. The two lying on top of each other Nonwovens are then fed to the pressing process, whereby preferably the fleece forming layer 31 the screen press plate rests. The other press plate is as mentioned, to form the anti-slip surface 34 structured. After pressing, the wood fiber board post-treated in a known manner.
- the wood fiber board described forms one biologically harmless product, on the one hand is weatherproof and on the other hand water-absorbing and water retention. Thanks to the deep vapor diffusion resistance the absorbed water can well into the environment be delivered.
- the wood fiber board is suitable Excellent as a construction element due to these properties for sub-roofs on roofs.
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Architecture (AREA)
- Forests & Forestry (AREA)
- Manufacturing & Machinery (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
- Laminated Bodies (AREA)
- Building Environments (AREA)
- Artificial Filaments (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Description
Claims (6)
- Verwendung von Holzfaserplatten (30) zum Aufbau eines mit einer Wärmedämmschicht (2) versehenen Unterdaches, wobei die Holzfaserplatten (30) einen Schichtaufbau mit einer im wesentlichen wasserundurchlässigen Holzfaser-Hartplattenschicht (32) und mit mindestens einer daran anschliessenden, zweiten Schicht (31) aus Holzfasermaterial, die wasseraufnehmend ausgestaltet ist, aufweisen,
dadurch gekennzeichnet, dassa) die von der Holzfaser-Hartplattenschicht (32) gebildete Oberfläche der Holzfaserplatte (30) mit einer rutschhemmenden Prägung (11, 12) versehen ist, und dassb) die Holzfaserplatten mit der wasseraufnehmenden Plattenschicht auf der Wärmedämmschicht des Unterdaches aufliegen. - Verwendung nach Anspruch 1, dadurch gekennzeichnet, dass die wasseraufnehmende Schicht als Schicht entsprechend einer mittelharten Holzfaserplatte ausgeführt ist.
- Verwendung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die von der wasseraufnehmenden Schicht (31) gebildete Oberfläche (33) der Holzfaserplatte (30) mit einer die Oberfläche vergrössernden Prägung versehen ist.
- Verwendung nach einem der Ansprüche 1 - 3, dadurch gekennzeichnet, dass die wasseraufnehmende Schicht (31) dicker als die im wesentlichen wasserundurchlässige Schicht (32) ist.
- Verwendung nach Anspruch 4, dadurch gekennzeichnet, dass die Holzfaserplatte eine Gesamtdicke von ca. 6 mm aufweist, wobei die Holzfaser-Hartplattenschicht ca. 1 mm dick ist und die wasseraufnehmende Schicht ca. 5 mm dick ist.
- Verfahren zur Herstellung einer Holzfaserplatte für die Verwendung nach einem der Ansprüche 1 bis 5, bei dem auf eine erste Fasermatte, die zur Bildung einer mittelharten Holzfaserplatte vorgesehen ist, eine zweite Fasermatte, die zur Bildung einer harten Holzfaserplatte vorgesehen ist, aufgebracht wird, wonach die beiden Fasermatten zusammen dem Pressvorgang unterzogen werden, wobei beim Pressvorgang die erste Fasermatte auf der Siebpressplatte aufliegt, dadurch gekennzeichnet, dass die zweite Fasermatte beim Pressen an einer Pressplatte aufliegt, die mit einem Prägemuster versehen ist, das eine erhöhte Rutschfestigkeit beim Begehen der harten Schicht der Holzfaserplatte herbeiführt.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH177391 | 1991-06-14 | ||
CH1773/91 | 1991-06-14 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0518017A1 EP0518017A1 (de) | 1992-12-16 |
EP0518017B1 EP0518017B1 (de) | 1995-01-25 |
EP0518017B2 true EP0518017B2 (de) | 1998-09-23 |
Family
ID=4218271
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP92105877A Expired - Lifetime EP0518017B2 (de) | 1991-06-14 | 1992-04-04 | Holzfaserplatte, Verfahren zu deren Herstellung und Verwendung derselben |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0518017B2 (de) |
AT (1) | ATE117619T1 (de) |
DE (1) | DE59201260D1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4430937C2 (de) * | 1994-08-31 | 1996-09-19 | Kurprinz Georg Keil Gmbh Unter | Verfahren zur Herstellung eines mehrlagigen Dämmaterials beliebiger Form aus Holzfasern |
FR2758149B1 (fr) * | 1997-01-03 | 1999-02-05 | Sarl Soveco Reunion | Complexe de couverture de toiture a pente avec film pare-pluie a performances d'isolation ameliorees |
DE102016101669A1 (de) * | 2016-01-29 | 2017-08-03 | Saint-Gobain Isover G+H Ag | Holzweichfaserdämmplatte für Wärme- und/oder Schalldämmung |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB711659A (en) * | 1951-05-05 | 1954-07-07 | Capuana Per L Ind Della Lignoc | Process for manufacturing wood fibre panels |
DE1900053A1 (de) * | 1969-01-02 | 1970-08-13 | Eugen Siempelkamp | Anlage zur Herstellung von Spanplatten,Faserplatten u.dgl. |
DE3322375A1 (de) * | 1983-06-22 | 1985-01-03 | Karl 5249 Hamm Rische | Schall- und waermedaemmende platte und verfahren zu ihrer herstellung |
CH661555A5 (en) * | 1983-10-24 | 1987-07-31 | Leganorm Ag | Insulating element for a heat-insulating and sound-insulating roof substructure |
EP0186503B1 (de) * | 1984-12-28 | 1991-02-27 | Forintek Canada Corp. | Verfahren zur Herstellung einer masshaltigen Verbundplatte |
-
1992
- 1992-04-04 AT AT92105877T patent/ATE117619T1/de not_active IP Right Cessation
- 1992-04-04 DE DE59201260T patent/DE59201260D1/de not_active Expired - Fee Related
- 1992-04-04 EP EP92105877A patent/EP0518017B2/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
ATE117619T1 (de) | 1995-02-15 |
DE59201260D1 (de) | 1995-03-09 |
EP0518017B1 (de) | 1995-01-25 |
EP0518017A1 (de) | 1992-12-16 |
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