EP4592467A1 - Bauelemente mit dämmstoff - Google Patents

Bauelemente mit dämmstoff

Info

Publication number
EP4592467A1
EP4592467A1 EP25151676.1A EP25151676A EP4592467A1 EP 4592467 A1 EP4592467 A1 EP 4592467A1 EP 25151676 A EP25151676 A EP 25151676A EP 4592467 A1 EP4592467 A1 EP 4592467A1
Authority
EP
European Patent Office
Prior art keywords
reinforcement rib
building element
rib
stiffening
upper reinforcement
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.)
Pending
Application number
EP25151676.1A
Other languages
English (en)
French (fr)
Inventor
Ko Kuperus
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Unilin BV
Original Assignee
Unilin BV
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
Application filed by Unilin BV filed Critical Unilin BV
Publication of EP4592467A1 publication Critical patent/EP4592467A1/de
Pending legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B7/00—Roofs; Roof construction with regard to insulation
    • E04B7/20—Roofs consisting of self-supporting slabs, e.g. able to be loaded
    • E04B7/22—Roofs consisting of self-supporting slabs, e.g. able to be loaded the slabs having insulating properties, e.g. laminated with layers of insulating material
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/88—Insulating elements for both heat and sound
    • E04B1/90—Insulating elements for both heat and sound slab-shaped
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/10—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
    • E04C2/20—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products of plastics
    • E04C2/22—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products of plastics reinforced
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
    • E04C2/10—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products
    • E04C2/24—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products laminated and composed of materials covered by two or more of groups E04C2/12, E04C2/16, E04C2/20
    • E04C2/243—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of wood, fibres, chips, vegetable stems, or the like; of plastics; of foamed products laminated and composed of materials covered by two or more of groups E04C2/12, E04C2/16, E04C2/20 one at least of the material being insulating
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
    • E04C2/38—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure with attached ribs, flanges, or the like, e.g. framed panels
    • E04C2/386—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure with attached ribs, flanges, or the like, e.g. framed panels with a frame of unreconstituted or laminated wood

Definitions

  • the present invention relates to a building element, comprising:
  • the present invention relates to a roof construction which comprises such a building element. Furthermore, the present invention relates to a method for manufacturing such a building element.
  • the present invention relates to such building elements which can be used as roof elements, wall elements or floor elements.
  • the known such building elements substantially consist of two types.
  • On the one hand there is the so-called open-shell building element, wherein a bottom panel is only used on one flat side of the building element, and wherein the other flat side, i.e. the open side, is formed substantially by the insulation material itself and, on the other hand, the closed or sandwich building element wherein a top panel is arranged on the second flat side, so that the insulation material is situated in the space between the bottom panel and the top panel.
  • open-shell roof elements and closed or sandwich roof elements reference is made to EP 0 978 601 and EP 1 162 050 .
  • the invention relates to building elements of the closed or sandwich type.
  • Such building elements are already well-known as such and may be designed, for example, as an insulating self-supporting roof element.
  • roof elements may be fitted to a roof frame of simple construction by means of their bottom panel, for example a roof frame comprising some purlins. After such roof elements have been installed, these are usually also provided with tiling battens which, in turn, support the roof tiles or other roof covering.
  • the roof element has the function of a traditional insulated roof underlayment.
  • said bottom panel to form the internal lining of the respective roof construction or for the bottom panel to be provided with such internal lining.
  • roof elements are prefabricated as made-to-measure roof elements for a dwelling.
  • the building elements from the abovementioned patent publications comprise wooden beams which are placed along the entire longitudinal direction of the building element, along the entire height between the bottom panel and the top panel or, in the absence of a bottom panel and/or a top panel, up to the respective top surface or bottom surface.
  • thicker insulation material has to be used to achieve the same thermal insulation.
  • thicker insulation material is required.
  • the result of the increasing insulation thickness is that such wooden beams require an ever increasing width/height ratio, which renders the manufacturing of such beams more complicated.
  • the construction standards relating to, inter alia, structural screw connections mean that wider beams are necessary, thus aggravating the problem of cold bridges.
  • EP 2 141 299 already describes an alternative solution, in which building elements are provided with an upper and a lower reinforcement rib which are arranged along a longitudinal direction L and are attached, respectively, to a top panel and a bottom panel.
  • Such building elements may be of a more compact design to achieve the same thermal insulation.
  • the reinforcement ribs may provide the necessary stiffness and the building elements are more insulating while having the same thickness than when using said wooden beams extending along the height, due to the fact that cold bridges are avoided.
  • these reinforcement ribs can easily shift with respect to each other, as a result of which the sandwich panel can easily start sagging due to transverse forces acting on the building element.
  • a building element comprising:
  • the reinforcement ribs are preferably made of wood.
  • these building elements comprise two or more of said reinforcing beams.
  • These reinforcing beams may be of an identical design, but may, alternatively, also differ from each other. It is also possible for a number of said reinforcing beams to be supplemented with additional reinforcement ribs which do not form reinforcing beams.
  • the base insulation material is preferably arranged on both sides adjacent to the reinforcing beam, viewed in a direction at right angles to the longitudinal direction L.
  • the base insulation material is arranged on only one side adjacent to the reinforcing beam, viewed in a direction at right angles to the longitudinal direction L. This makes it possible to arrange such reinforcing beams preferably in the middle of the building element or alternatively on the side edge of the building element.
  • the building element comprises a top panel which is at least partly delimited at the top by the top surface and/or which is situated entirely above the base insulation material.
  • This top panel is preferably provided with the upper reinforcement rib.
  • the upper reinforcement rib is attached to the top panel.
  • the building element preferably comprises a bottom panel which is at least partly delimited at the bottom by the bottom surface and/or which is situated entirely below the base insulation material.
  • This bottom panel is preferably provided with the lower reinforcement rib.
  • the lower reinforcement rib is attached to the bottom panel.
  • the attachment between the upper reinforcement rib and the top panel and/or the attachment between the lower reinforcement rib and the bottom panel may be achieved, for example by means of one or more nail, screw, clamp and/or adhesive connections and/or via any other attachment means.
  • the upper reinforcement rib may form an integral part of a said top panel and/or the lower reinforcement rib may form an integral part of a said bottom panel.
  • Such a top panel and/or such a bottom panel may in this case then be manufactured, for example, by means of extrusion.
  • the one or more connecting elements comprise a stiffening panel which connects the upper reinforcement rib to the lower reinforcement rib in order to form a reinforcing beam.
  • the reinforcement ribs extend in the longitudinal direction L along virtually the entire length of the building element.
  • the stiffening panel also extends along virtually the entire length of the building element, viewed in the longitudinal direction L.
  • the building element comprises several of said reinforcing panels which are arranged distributed along the longitudinal direction L, with or without an intermediate distance.
  • the first-mentioned stiffening panel is arranged on a first side of the reinforcing beam as a first stiffening panel.
  • the reinforcing beam is then provided with a second stiffening panel which is arranged on a second side of the reinforcing beam and connects the upper reinforcement rib to the lower reinforcement rib.
  • the first stiffening panel will, viewed in the longitudinal direction L, extend at least partly along the length of the building element and may in this case extend more specifically along virtually its entire length.
  • first reinforcing panels which, viewed in the longitudinal direction L, are arranged in an uninterrupted manner, or may be arranged an intermediate distance apart.
  • the second stiffening panel will, viewed in the longitudinal direction L, extend at least partly along the length of the building element and this second stiffening panel may in this case extend more specifically along virtually its entire length.
  • the stiffening panel connects the upper reinforcement rib to the lower reinforcement rib in order to form an I-girder as a reinforcing beam.
  • At least one abovementioned stiffening panel is at least partly manufactured from CPL (Continuous Pressure Laminate) or HPL (High Pressure Laminate) or chipboard or wood fibreboard or plasterboard or plastic panel or multi-ply board or LVL (Laminated Veneer Lumber) or OSB (Oriented Strand Board) or gypsum fibreboard.
  • CPL Continuous Pressure Laminate
  • HPL High Pressure Laminate
  • chipboard chipboard or wood fibreboard or plasterboard or plastic panel or multi-ply board
  • LVL Laminated Veneer Lumber
  • OSB Oriented Strand Board
  • gypsum fibreboard gypsum fibreboard.
  • CPL Continuous Pressure Laminate
  • HPL High Pressure Laminate
  • LVL Laminated Veneer Lumber
  • OSB Oriented Strand Board
  • At least one abovementioned stiffening panel connects the upper reinforcement rib to the lower reinforcement rib by means of adhesives and/or by means of mechanical connecting means, such as for example nails, screws, bolts or clamps.
  • the stiffening panel is glued to the vertical sides of the reinforcing beams. This results in a significant large surface which is much more resistant to the occurring transverse forces.
  • the stiffening panel may be attached via form-fitting into the slots of the reinforcement ribs.
  • the one or more connecting elements comprise one or more stiffening ribs which connect the upper reinforcement rib to the lower reinforcement rib in order to form the reinforcing beam.
  • the one or more stiffening ribs are positioned in a through-hole or a blind hole in the upper reinforcement rib and in a through-hole or a blind hole in the lower reinforcement rib.
  • the one or more stiffening ribs have a round cross section, and more preferably a circular cross section.
  • Stiffening ribs having a circular cross section have the advantage that the reinforcing beam can be produced easily. This can be done, for example, by drilling holes through or into the lower reinforcement ribs and through or into the upper reinforcement rib - and optionally through the beam-insulating material, should this be present, between the lower reinforcement ribs and the upper reinforcement rib; and optionally through the top panel and/or the bottom panel, for example if these have already been fitted or fixed to the upper reinforcement rib and the lower reinforcement rib, respectively, and sliding the one or more stiffening ribs through or into the drilled holes.
  • the one or more stiffening ribs may be attached to the lower reinforcement rib and/or to the upper reinforcement rib, for example by means of adhesive.
  • the one or more stiffening ribs form an oblique angle with respect to the upper reinforcement rib in the plane at right angles to the upper reinforcement rib and at right angles to the building element, preferably this angle is between 20° and 70°, more preferably between 30° and 60°.
  • Such embodiments have the advantage that transverse forces on the building element can be compensated for in an efficient manner.
  • the building element more preferably comprises at least a first stiffening rib and a second stiffening rib which connects the upper reinforcement rib to the lower reinforcement rib in order to form the reinforcing beam.
  • the first stiffening rib and the second stiffening rib each form an oblique angle with respect to the upper reinforcement rib in the plane at right angles to the upper reinforcement rib and at right angles to the building element.
  • the oblique angle of the first stiffening rib is directed in the opposite direction with respect to the oblique angle of the second stiffening rib.
  • the building element comprises at least a first stiffening rib and a second stiffening rib which connect the upper reinforcement rib to the lower reinforcement rib in order to form the reinforcing beam.
  • the first stiffening rib and the second stiffening rib run vertically through the thickness of the building element.
  • the one or more stiffening ribs may comprise or be formed by pins made of wood or wood-based material or made of a plastic composite material, for example made of a wood fibre-reinforced plastic.
  • the one or more stiffening ribs are preferably attached to or through the upper reinforcement rib and the lower reinforcement rib.
  • An attachment of the one or more stiffening ribs through the upper reinforcement rib and the lower reinforcement rib can be achieved by attaching the stiffening rib in a hole - for example in an open hole or in a blind hole - for example using an adhesive connection.
  • This attachment of the one or more stiffening ribs to or through the upper reinforcement rib and the lower reinforcement rib may be brought about by means of adhesive and/or by means of mechanical attachment means, such as screws, clamps or nails.
  • the cross section of the upper reinforcement rib is substantially identical to the cross section of the lower reinforcement rib. More specifically, this cross section may in this case be rectangular.
  • this cross section may in this case be rectangular.
  • a reinforcing beam with a substantially rectangular cross section is obtained.
  • Such a beam-shaped reinforcing beam makes it easier to replace the current beams as in EP 0 450 731 and EP 1 253 257 by these reinforcing beams.
  • the cross section of the upper reinforcement rib may be larger than the cross section of the lower reinforcement rib or the cross section of the lower reinforcement rib may be larger than the cross section of the upper reinforcement rib, in order to optimize the reinforcing beam with regard to loads to be absorbed. More specifically, this cross section may in this case be trapezoidal. If the reinforcing beam is provided with an upper reinforcement rib and a lower reinforcement rib having a trapezoidal cross section, wherein the one cross section is larger than the other, and if the reinforcing beam in this case is also provided with one or more abovementioned reinforcing panels on either side, then it is possible to achieve a reinforcing beam having a substantially trapezoidal cross section. Such a reinforcing beam with a substantially trapezoidal cross section can also be incorporated in a building element relatively easily during production.
  • the reinforcing beam is preferably provided with beam-insulating material which is arranged between the upper reinforcement rib and the lower reinforcement rib.
  • the reinforcing beam may be free from insulation material.
  • the base insulation material may extend as far as between the reinforcement ribs, but preferably only separate beam-insulating material is provided in order to facilitate incorporation of such a reinforcing beam.
  • This beam-insulating material may in this case at least partly fill the space between the reinforcement ribs.
  • the beam-insulating material is arranged along the entire height between the upper reinforcement rib and the lower reinforcement rib. More preferably, the beam-insulating material fills the entire space in the reinforcing beam.
  • this beam-insulating material may be situated loosely in the reinforcing beam, so that there is no connection between this beam-insulating material and the upper reinforcement rib, the lower reinforcement rib and one or more reinforcing panels.
  • the beam-insulating material is connected to at least one said stiffening panel and/or at least one reinforcement rib.
  • the beam-insulating material preferably comprises one or more of following materials: PIR (polyisocyanurate), PUR (polyurethane), polystyrene. such as for example EPS (expanded polystyrene) and XPS (extruded polystyrene), RESOL (phenolic resin), perlite, vermiculite, foam glass, glass wool, rock wool, wood wool, flax wool, sheep's wool, feathers, wood fibre, flax fibre and flake foam.
  • PIR polyisocyanurate
  • PUR polyurethane
  • polystyrene such as for example EPS (expanded polystyrene) and XPS (extruded polystyrene), RESOL (phenolic resin), perlite, vermiculite, foam glass, glass wool, rock wool, wood wool, flax wool, sheep's wool, feathers, wood fibre, flax fibre and flake foam.
  • the base insulation material also preferably comprises one or more of following materials: PIR (polyisocyanurate), PUR (polyurethane), polystyrene, such as for example EPS (expanded polystyrene) and XPS (extruded polystyrene), RESOL (phenolic resin), perlite, vermiculite, foam glass, glass wool, rock wool, wood wool, flax wool, sheep's wool, feathers, wood fibre, flax fibre and flake foam.
  • the base insulation material may consist of one or more layers. If the base insulation material comprises more layers, these layers may consist of various of the abovementioned materials.
  • the base insulation material may also comprise a facing on both sides, such as is known, for example, with polyisocyanurate panels.
  • the beam-insulating material may also comprise a facing on both sides.
  • the beam-insulating material and the base insulation material are made from the same material. It is also possible for the beam-insulating material and the base insulation material to be made of different materials.
  • the beam-insulating material and the base insulation material may be made from the same insulation panel, wherein the base insulation material runs through in the beam-insulating material continuously, and may optionally comprise a facing on one or on both sides.
  • the base insulation material is not glued to the top panel. This facilitates separation of the various materials when recycling the building element.
  • the base insulation material is not glued to the bottom panel. This facilitates separation of the various materials when recycling the building element.
  • the beam-insulating material is not glued to the upper reinforcement rib. This facilitates separation of the various materials when recycling the building element.
  • the beam-insulating material is not glued to the lower reinforcement rib. This facilitates separation of the various materials when recycling the building element.
  • the one or more connecting elements comprise one or more stiffening ribs which connect the upper reinforcement rib to the lower reinforcement rib in order to form the reinforcing beam
  • the one or more stiffening ribs preferably run through the base insulation material. This has the advantage that base insulation material is situated between the upper reinforcement rib and the lower reinforcement rib. Such an embodiment ensures a good thermal insulation of the building element at the location of the reinforcing beam.
  • the object of the invention is furthermore also achieved by providing a roof construction, comprising an above-described building element according to the present invention.
  • the object of the invention is in addition also achieved by providing a method for manufacturing a building element, comprising:
  • This method makes it possible to manufacture, for example, building elements as described above.
  • beam-insulating material is provided between the lower reinforcement rib and the upper reinforcement rib in order to form the reinforcing beam.
  • This beam-insulating material may in this case be provided separately and be accommodated loosely in the reinforcing beam.
  • this beam-insulating material may also be formed in the reinforcing beam itself, wherein a connection is inherently created between this beam-insulating material and adjoining parts of the reinforcing beam in a curing process.
  • this beam-insulating material may also be attached to one or more adjoining parts of the reinforcing beam, for example via gluing or by means of mechanical connecting means.
  • Building elements may also be manufactured by means of a method according to the invention, optionally in a continuous process.
  • the stiffening panel is provided on a roll and unwound from this roll in order to connect the upper reinforcement rib and the lower reinforcement rib to this stiffening panel.
  • This makes it possible to attach this stiffening panel in a building element in a continuous manufacturing process.
  • such a building element may also be provided with a stiffening panel, without using joints.
  • the method preferably also comprises a step wherein more building elements, which are manufactured successively, with reinforcing panels which are unwound from the same roll, are separated from one another, for example by (inter alia) sawing this stiffening panel.
  • Other parts of a said building element may be incorporated in a continuous process in a similar way to prior-art building elements.
  • a top panel is furthermore provided which at least partly adjoins the top surface of the building element at the top.
  • Such a top panel may optionally be provided with an upper reinforcement rib which forms an integral part of this top panel.
  • a bottom panel may optionally also be provided with a lower reinforcement rib which forms an integral part of the bottom panel.
  • the upper reinforcement rib is provided separately and is also connected to the top panel by means of a method according to the invention.
  • the lower reinforcement rib is preferably connected to the bottom panel.
  • the upper reinforcement rib is in this case connected to the stiffening panel first, before the upper reinforcement rib is connected to the top panel.
  • the lower reinforcement rib is preferably connected to the stiffening panel first, before the lower reinforcement rib is connected to the bottom panel.
  • An optional top panel and an optional bottom panel may also be supplied in a continuous process and be, for example, sawn up in order to form the building elements, analogously to existing production processes.
  • the upper reinforcement rib and/or the lower reinforcement rib is also supplied in a continuous process in order to connect it to the stiffening panel. More specifically, more beams may to this end be joined together via finger joints in order to form the upper reinforcement rib, and/or more beams may be joined together via finger joints in order to form the lower reinforcement rib.
  • a reinforcement rib which is constructed in this way can then be sawn up again in a continuous process in order successively to form individual building elements. Said finger joints may be constructed, for example, by means of a method as described in EP 1 162 050 .
  • each reinforcement rib is made as a single piece.
  • the stiffening panel can then be interrupted, if desired. It is thus possible, for example, in an alternative continuous process to provide different reinforcing panels without any connection to each other, wherein these are only connected to each other via the reinforcement ribs.
  • the stiffening panel is connected to the upper reinforcement rib and/or the stiffening panel is connected to the lower reinforcement rib in order to connect the upper reinforcement rib to the lower reinforcement rib by means of gluing and/or by means of mechanical connecting means, such as for example nails and/or by means of screws and/or by means of clamps.
  • the base insulation material may be provided separately and be accommodated loosely in the building element.
  • this base insulation material may also be formed in the building element itself, wherein a connection is inherently achieved between this base insulation material and adjoining parts of the building element in a curing process.
  • this base insulation material may also be attached to one or more adjoining parts of the building element, for example via gluing or by means of mechanical connecting means.
  • An aspect of the invention relates to a method for producing a building element; wherein the building element comprises:
  • the lower reinforcement rib and the upper reinforcement rib are preferably placed loosely into the slots, i.e. without being fastened, meaning without gluing.
  • the insulation material of the base insulation material which is situated between the lower reinforcement rib and the upper reinforcement rib preferably forms the beam-insulating material.
  • the one or more stiffening ribs which are introduced into the hole preferably fit tightly.
  • the one or more stiffening ribs preferably have a round cross section, more preferably a circular cross section.
  • the reinforcement ribs are milled in a longitudinal direction of the upper and the lower reinforcement rib, which may detach a glued connection of these reinforcement ribs with the stiffening ribs, as a result of which the stiffening ribs can easily be removed.
  • the materials can easily be separated once the stiffening ribs have been removed: the base insulation material (which also forms the beam-insulating material in this embodiment) is easily separable from the other components.
  • the other components are preferably all wood-based and are easily recyclable.
  • Fig. 1a shows an insulated reinforcing beam 8 which extends in the longitudinal direction L along the length of the building element 1.
  • This reinforcing beam 8 comprises a lower reinforcement rib 5 and an upper reinforcement rib 6 which are connected by a first stiffening panel 11 and a second stiffening panel 12 which delimit the reinforcing beam 8.
  • the reinforcing beam 8 is provided with beam-insulating material 13 which is arranged between the upper reinforcement rib 6 and the lower reinforcement rib 5 along the entire height. Alternatively, the reinforcing beam 8 may be free from beam-insulating material 13.
  • the upper reinforcement rib 6 and lower reinforcement rib 5 preferably consist of wooden beams having a rectangular cross section which extend along the length of the building element 1 in the longitudinal direction L. Obviously, the use of a material other than wood is not excluded.
  • the reinforcement ribs 5-6 preferably have a height of 25 to 75 millimetres, viewed in the height direction H.
  • the cross section of the upper reinforcement rib 6 is substantially identical to the cross section of the lower reinforcement rib 5.
  • This cross section is in this case rectangular, so that a reinforcing beam 8 with a substantially rectangular cross section is achieved.
  • the beam-insulating material 13 completely fills the space between the reinforcement ribs 5-6.
  • this beam-insulating material 13 may fill this space only partly.
  • it may be situated loosely in the reinforcing beam 8, so that there is no connection between this beam-insulating material 13 and the upper reinforcement rib 6, the lower reinforcement rib 5 and one or more reinforcing panels 11-12.
  • the beam-insulating material 13 is connected to at least one abovementioned stiffening panel 11-12 and/or at least one reinforcement rib 5-6.
  • a connection with one or more of these parts may automatically be achieved, for example when directly forming this beam-insulating material 13 in the reinforcing beam 8. It is also possible, for example, to bring about a connection between the beam-insulating material 13 and one or more other parts of the reinforcing beam 8 by means of mechanical connecting means, such as for example clamps.
  • the beam-insulating material 13 preferably comprises one or more of following materials: PIR (polyisocyanurate), PUR (polyurethane), polystyrene, such as for example EPS (expanded polystyrene) and XPS (extruded polystyrene), RESOL (phenolic resin), perlite, vermiculite, foam glass, glass wool, rock wool, wood wool, flax wool, sheep's wool, feathers, wood fibre, flax fibre and flake foam.
  • PIR polyisocyanurate
  • PUR polyurethane
  • polystyrene such as for example EPS (expanded polystyrene) and XPS (extruded polystyrene)
  • RESOL phenolic resin
  • At least one abovementioned stiffening panel 11-12 is at least partly made from CPL (Continuous Pressure Laminate) or HPL (High Pressure Laminate) or chipboard or wood fibreboard or plasterboard or plastic panel or multi-ply board or LVL (Laminated Veneer Lumber) or OSB (Oriented Strand Board) or gypsum fibreboard.
  • CPL Continuous Pressure Laminate
  • HPL High Pressure Laminate
  • chipboard chipboard
  • LVL Laminated Veneer Lumber
  • OSB Oriented Strand Board
  • At least one abovementioned stiffening panel 11-12 connects the upper reinforcement rib 6 to the lower reinforcement rib 5 by means of gluing and/or by means of mechanical connecting means, such as for example nails, screws, bolts or clamps.
  • the stiffening panel 11-12 is glued to the vertical sides of the reinforcing beams 8, resulting in a significant large surface which is much more resilient to the occurring transverse forces.
  • the reinforcing beam 8 has a cross section which is at least larger than 10 square centimetres, and preferably is larger than 20 square centimetres.
  • the reinforcing beam 8 preferably has a thickness of 20 to 45 millimetres, viewed in the width direction B.
  • the reinforcing beam 8 preferably has a height of 100 to 300 millimetres, viewed in the height direction H.
  • the reinforcing panels 11-12 and the reinforcing beam 8 extend along the entire length L, as is illustrated in Fig. 1a .
  • Fig. 1b shows an alternative insulated reinforcing beam 8 which is substantially of the same design as the reinforcing beam from Fig. 1a .
  • This reinforcing beam 8 also extends along the length of the building element 1 in the longitudinal direction L.
  • This reinforcing beam 8 also comprises a first stiffening panel 11 which extends along the length of the building element 1 in the longitudinal direction L.
  • this reinforcing beam 8 now additionally comprises several second reinforcing panels 12 which are arranged in a distributed manner along the longitudinal direction L at an intermediate distance apart. Alternatively, these second reinforcing panels 12 may be arranged along the longitudinal direction L without being an intermediate distance apart.
  • the reinforcing beam 8 may comprise more first reinforcing panels 11 which may or may not be arranged distributed along the longitudinal direction L at an intermediate distance apart.
  • Figs. 2 and 5 show a building element 1, composed of three reinforcing beams 8, base insulation 2, a bottom panel 10 and a top panel 9.
  • the top panel 9 is delimited at the top by a top surface 4 and the bottom panel 10 is delimited at the bottom by a bottom surface 3.
  • the lateral distance between the reinforcing beams 8 in the width direction B is greater than 30 centimetres and preferably greater than 40 centimetres.
  • the length of the building element 1 may be several times its width. The length may be made to measure for a roof construction and is preferably between 2 and 8 metres, whereas the width of the building element 1 depends on the number of reinforcing beams 8, with a thickness of between 60 and 150 centimetres in the width direction B being preferred.
  • the thickness of the bottom panel 10 in the height direction H is identical to the thickness of the top panel 9 in this height direction.
  • the thickness of the bottom panel 10 in the height direction H may also deviate from the thickness of the top panel 9.
  • the building element 1 is provided with a top panel 9 and/or bottom panel 10.
  • the top panel 9 is attached to the upper reinforcement rib 6 and the bottom panel 10 is attached to the lower reinforcement rib 5.
  • the attachment between upper reinforcement rib 6 and top panel 9 and/or the attachment between lower reinforcement rib 5 and bottom panel 10 may be brought about, for example, by means of one or more nail, screw, clamp and/or adhesive connections and/or via any other attachment means.
  • the upper reinforcement rib 6 may form an integral part of an abovementioned top panel 9 and/or the lower reinforcement rib 5 may form an integral part of an abovementioned bottom panel 10.
  • Such a top panel 9 and/or such a bottom panel 10 may in this case be manufactured, for example, by means of extrusion.
  • the base insulation material 2 is arranged on both sides adjacent to the reinforcing beams 8, viewed in the width direction B, so that the reinforcing beams 8 are arranged in the centre of the building element 1.
  • the base insulation material 2 may be arranged on only one side adjacent to a reinforcing beam 8, viewed in the width direction B, so that the reinforcing beam 8 is arranged on the side edge of the building element 1.
  • the base insulation material 2 does not need to be connected to (parts of) the reinforcing beam 8 or to the bottom panel 10 or to the top panel 9, but in alternative embodiments one or more of such connections may be provided.
  • the base insulation material 2 preferably also comprises one or more of following materials: PIR (polyisocyanurate), PUR (polyurethane), polystyrene, such as for example EPS (expanded polystyrene) and XPS (extruded polystyrene), RESOL (phenolic resin), perlite, vermiculite, foam glass, glass wool, rock wool, wood wool, flax wool, sheep's wool, feathers, wood fibre, flax fibre and flake foam.
  • PIR polyisocyanurate
  • PUR polyurethane
  • polystyrene such as for example EPS (expanded polystyrene) and XPS (extruded polystyrene)
  • RESOL phenolic resin
  • the beam-insulating material 13 and the base insulation material 2 are made from the same material.
  • Such a building element 1 may be used in constructions as a roof element, wall element or floor element.
  • the orientation of the building element 1 may differ, depending on the construction.
  • the height direction H is vertical and the longitudinal direction L is horizontal.
  • the height direction H is horizontal and the longitudinal direction L is vertical.
  • the direction may be inclined in a similar manner.
  • the width direction B will usually be horizontal in every orientation. However, the possibility of fitting these building elements at an orientation in which the abovementioned longitudinal direction L and the abovementioned width direction L are switched around is not excluded.
  • Fig. 3 shows the building element 1 from Fig. 2 with counterbattens 7.
  • Such counterbattens 7 may be used in all embodiments of the present invention and optionally during the production of the building element 1. They do not necessarily have to be fitted at positions which correspond to said reinforcing beams 8, as is the case in the example.
  • Fig. 4 illustrates how the building element 1 from Fig. 2 may be used in a roof construction during erection 14.
  • a relatively simple roof frame 15 may be started with, as is illustrated, using a limited number of purlins 16 to which the building elements 1 are then attached.
  • the further roof covering 17 can then be arranged on these building elements 1.
  • roof tiles may be fitted after tiling battens 18 have been provided first.
  • the tiling battens 18 in the example are attached to the counterbattens or battens 7.
  • the longitudinal direction L of the building elements 1 in the example extends from the gutter to the ridge, it is possible, according to a variant of such a roof construction 14, to place building elements 1 in such a way that their longitudinal direction L extends along the width of the roof construction 14.
  • Figs. 6-8 illustrate alternative building elements 1 which differ slightly from, but for the remainder are substantially designed like the building elements from Figs. 2-5 .
  • Fig. 6 shows the cross section of a part of a variant of the building element 1.
  • the reinforcing beam 8 is designed as an I-girder.
  • the first stiffening panel 11 is placed centrally in the reinforcing beam 8 and connects the lower reinforcement rib 5 to the upper reinforcement rib 6.
  • the stiffening panel 11 can be attached to slots of the reinforcement ribs 5-6 to this end by means of form-fitting.
  • Fig. 7 shows the cross section of a part of an alternative variant of the building element 1.
  • the cross section of the upper reinforcement rib 6 is greater than the cross section of the lower reinforcement rib 5 in order to optimize the reinforcing beam with regard to loads to be absorbed.
  • this cross section is trapezoidal in this case, so that a reinforcing beam 8 having a substantially trapezoidal cross section is formed.
  • reinforcement ribs 5, 6 may comprise cross sections of a different shape. Thus, it is for example alternatively possible to provide a larger upper reinforcement rib 6 and a smaller lower reinforcement rib 5 with a rectangular cross section.
  • the reinforcing beam 8 is configured with a first stiffening panel 11 and a second stiffening panel 12 which are provided on either side of the reinforcing beam 8.
  • a reinforcing beam 8 with a substantially trapezoidal cross section may be incorporated in a building element 1 in a relatively simple manner during production.
  • such a reinforcing beam 8 with a trapezoidal cross section could be provided with only one stiffening panel 11, 12, similar to the reinforcing beam from Fig. 8 .
  • such a reinforcing beam 8 with a trapezoidal cross section could be configured, for example, as an I-girder, similar to the reinforcing beam 8 from Fig. 6 .
  • Fig. 8 shows the cross section of a part of an alternative variant of the building element 1.
  • the reinforcing beam 8 is designed with a rectangular cross section, by means of only a first stiffening panel 11 which is provided on a side of the reinforcing beam 8.
  • Fig. 9 shows an embodiment of a continuous method for manufacturing a reinforcing beam 8 as illustrated in Fig. 1 .
  • an upper reinforcement rib 6, a lower reinforcement rib 5 and beam-insulating material 13 are provided. More specifically, several beams may be j oined together to this end, for example by means of finger joints as described in EP 1 162 050 , in order to form the upper reinforcement rib 6 and/or several beams may be joined together by means of finger joints in order to form the lower reinforcement rib 5.
  • a layer of adhesive is applied to the top side and bottom side, viewed in the width direction B, of the reinforcement ribs 5-6 and the beam-insulating material 13 by means of adhesive applicators 20.
  • a first stiffening panel 11 is unwound from a roll 19 and fitted to connect the upper reinforcement rib 6 to the lower reinforcement rib 5 by means of the first layer of adhesive.
  • a second stiffening panel 12 is unwound from a second roll 19 and fitted on the opposite side of the first stiffening panel 11 in order to connect the upper reinforcement rib 6 and the lower reinforcement rib 5 to each other by means of the second layer of adhesive.
  • these connections may be brought about by means of mechanical connecting means, such as for example nails and/or by means of screws and/or by means of clamps.
  • the reinforcing beam 2 is cured by means of pressure rollers 21, after which further processing is possible.
  • Fig. 9 also shows how the beam-insulating material 13 is connected to the reinforcing panels 11-12 by means of gluing.
  • the beam-insulating material 13 may also be accommodated loosely in the reinforcing beam 8.
  • this beam-insulating material 13 may also be formed in the reinforcing beam 8 itself, wherein a connection is inherently brought about between this beam-insulating material 13 and adjoining parts of the reinforcing beam 8 during the curing process.
  • this beam-insulating material 13 may also be attached to one or more adjoining parts of the reinforcing beam 8 via alternative attachment means, for example by means of mechanical connecting means.
  • each reinforcement rib 5-6 is made as a single piece.
  • a building element 1 can also be provided with a stiffening panel 11-12 without using joints.
  • the reinforcing panels 11-12 may, if desired, be interrupted. It is thus possible, for example, to provide various reinforcing panels 11-12 without mutual connection in an alternative continuous process, which are only connected to each other by means of the reinforcement ribs 5-6.
  • the unit can be sawn to length in order to produce reinforcing beams 8.
  • a top panel 9 is also provided with a method according to the invention, the top of which at least partly adjoins the top surface 4 of the building element 1.
  • Such a top panel 9 may optionally be provided with an upper reinforcement rib 6 which forms an integral part of this top panel 9.
  • a bottom panel 10 may optionally be provided with a lower reinforcement rib 5 which forms an integral part of the bottom panel 10.
  • the upper reinforcement rib 6 is provided separately and also connected to the top panel 9.
  • the lower reinforcement rib 5 is preferably connected to the bottom panel 10.
  • the upper reinforcement rib 6 is in this case connected to a stiffening panel 11-12 first, before the upper reinforcement rib 6 is connected to the top panel 9, for example as is illustrated in Fig. 9 .
  • the lower reinforcement rib 5 is preferably connected to a stiffening panel 11-12 first, before the lower reinforcement rib 5 is connected to the bottom panel 10, for example as is illustrated in Fig. 9 .
  • An optional top panel 9 and an optional bottom panel 10 may also be supplied in a continuous process and be, for example, sawn up in order to form the building elements 1, analogously to existing production processes.
  • the base insulation material 2 may be provided separately and be accommodated loosely in the building element 1.
  • this base insulation material 2 may also be formed in the building element 1 itself, wherein a connection is inherently achieved between this base insulation material 2 and adjoining parts of the building element 1 in a curing process.
  • this base insulation material 2 may also be attached to one or more adjoining parts of the building element 1, for example via gluing or by means of mechanical connecting means.
  • the method preferably also comprises a step in which more building elements 1 which are manufactured in succession are separated from one another, for example by (inter alia) sawing up the one or more reinforcing panels 11-12.
  • Figs. 10 - 12 show embodiments of reinforcing beams 8 made of building elements according to the invention. These reinforcing beams comprise a lower reinforcement rib 5 and an upper reinforcement rib 6. Stiffening ribs 22, 23 connect the lower reinforcement rib 5 to the upper reinforcement rib 6, so that the reinforcing beam 8 is formed. There is beam-insulating material 13 between the lower reinforcement rib 5 and the upper reinforcement rib 6. This beam-insulating material 13 may be the base insulation material of the building element. Figs. 10 - 12 show these reinforcing beams 8 separately from the building elements according to the invention in which they are incorporated.
  • the reinforcing beam 8 comprises first stiffening ribs 22 and second stiffening ribs 23.
  • the first stiffening ribs 22 and the second stiffening ribs 23 make an angle A of 45° with respect to the upper reinforcement rib 6 in the plane at right angles to the upper reinforcement rib 6 and at right angles to the building element.
  • This angle A of the first stiffening rib 22 is directed in the opposite direction to the angle A of the second stiffening rib 23.
  • Fig. 12 illustrates an alternative embodiment in which the first stiffening ribs 22 and the second stiffening ribs 23 run vertically through the thickness of the building element.
  • the stiffening ribs 22, 23 may be pins made of wood or made of wood-based material or made of a plastic composite material.
  • the stiffening ribs 22, 23 from the examples of Figs. 10 - 12 are attached to the lower reinforcement rib 5 and to the upper reinforcement rib 6.
  • the stiffening ribs 22, 23 are attached to the side of the lower reinforcement rib 5 and the upper reinforcement rib 6.
  • the building element which comprises these reinforcing beams 8 comprises insulation material between the lower reinforcement rib and the upper reinforcement rib 6.
  • the stiffening ribs 22, 23 are attached in holes in the lower reinforcement rib 5 and to the upper reinforcement rib 6 by means of adhesive connection.
  • These embodiments may be brought about by producing the building element using base insulation material and the lower reinforcement rib(s) 5 and the upper reinforcement rib(s) 6 and the optional top panel and bottom panel.
  • the base insulation material is situated between the entire volume between top panel and bottom panel, and between the lower reinforcement rib and the upper reinforcement rib.
  • a hole can then be drilled - obliquely at an angle A (when producing according to Fig. 11 ) or straight through the building element (when producing according to Fig.
  • stiffening rib - preferably having the same dimensions as the drilled hole - can then be inserted into the drilled hole and be glued to the lower reinforcement rib and to the upper reinforcement rib.
  • the beam-insulating material 13 is then formed by base insulation material 2 of the building element.
  • the stiffening ribs are preferably circular, so that they fit well into the drilled holes.
  • the production method of reinforcing beams 8 as illustrated in Figs. 11 and 12 (but incorporated directly in the building element) in building elements according to the invention may comprise the following steps:
  • the lower reinforcement rib and the upper reinforcement rib are preferably placed loosely in the slots, meaning without attachment, meaning without gluing.
  • the insulation material of the base insulation material which is situated between the lower reinforcement rib and the upper reinforcement rib forms the beam-insulating material.
  • the stiffening rib which is inserted into the hole preferably fits tightly.
  • the stiffening rib preferably has a round cross section, more preferably a circular cross section.
  • the materials can easily be separated once the stiffening ribs have been removed: the base insulation material (which also forms the beam-insulating material in this embodiment) is easily separable from the other components.
  • the other components are preferably all wood-based and are easily recyclable.
  • the invention also relates to the following list of numbered paragraphs:

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Electromagnetism (AREA)
  • Acoustics & Sound (AREA)
  • Building Environments (AREA)
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EP25151676.1A 2024-01-26 2025-01-14 Bauelemente mit dämmstoff Pending EP4592467A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE20245045A BE1032369B1 (nl) 2024-01-26 2024-01-26 Bouwelementen met isolatiemateriaal

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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3017332A1 (de) * 1980-05-06 1981-11-12 Masonite AB, Rundviksverken Bauelement, insbesondere dachbauelement
EP0450731A1 (de) 1990-04-05 1991-10-09 Opstalan B.V. Panelartiges Isolierelement für Dächer oder Aussenwände
EP0978601A1 (de) 1998-08-05 2000-02-09 Exploitatiemaatschappij Merode B.V. Verfahren und Vorrichtung zur Herstellung eines isolierenden Elementes und damit hergestellter Elemente
EP1162050A1 (de) 2000-05-31 2001-12-12 Merode B.V. Verfahren zur Herstellung eines Isolierelements und derart hergestelltes Element
EP1253257A1 (de) 2001-04-28 2002-10-30 Unidek Bouwelementen b.v. Verfahren zur Herstellung eines Flächenelementes
DE202004020808U1 (de) * 2003-02-27 2006-02-02 IsoBouw Dämmtechnik GmbH Wand- oder Dachelement
EP1323876B1 (de) * 2001-12-29 2007-12-05 Martin Opitz Tafelförmiges Bauelement, dafür geeigneter Abstandshalter und Rippenpaarträger, damit errichtetes Bauwerk und Verfahren zu seiner Errichtung
EP2141299A2 (de) 2008-07-04 2010-01-06 Unidek B.V. Sandwichplatte und Verfahren zur Herstellung einer Sandwichplatte
EP2256262B1 (de) * 2009-10-22 2013-05-22 Naturbau Gschwend Geschwendbau GmbH Holzgebäudemodul, seine Verwendung, und Verfahren zu seiner Herstellung
WO2014053905A2 (fr) * 2012-10-05 2014-04-10 Hengy Jacques Poutrelle structuree et element modulaire de construction realise avec cette poutrelle

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3017332A1 (de) * 1980-05-06 1981-11-12 Masonite AB, Rundviksverken Bauelement, insbesondere dachbauelement
EP0450731A1 (de) 1990-04-05 1991-10-09 Opstalan B.V. Panelartiges Isolierelement für Dächer oder Aussenwände
EP0978601A1 (de) 1998-08-05 2000-02-09 Exploitatiemaatschappij Merode B.V. Verfahren und Vorrichtung zur Herstellung eines isolierenden Elementes und damit hergestellter Elemente
EP1162050A1 (de) 2000-05-31 2001-12-12 Merode B.V. Verfahren zur Herstellung eines Isolierelements und derart hergestelltes Element
EP1253257A1 (de) 2001-04-28 2002-10-30 Unidek Bouwelementen b.v. Verfahren zur Herstellung eines Flächenelementes
EP1323876B1 (de) * 2001-12-29 2007-12-05 Martin Opitz Tafelförmiges Bauelement, dafür geeigneter Abstandshalter und Rippenpaarträger, damit errichtetes Bauwerk und Verfahren zu seiner Errichtung
DE202004020808U1 (de) * 2003-02-27 2006-02-02 IsoBouw Dämmtechnik GmbH Wand- oder Dachelement
EP2141299A2 (de) 2008-07-04 2010-01-06 Unidek B.V. Sandwichplatte und Verfahren zur Herstellung einer Sandwichplatte
EP2256262B1 (de) * 2009-10-22 2013-05-22 Naturbau Gschwend Geschwendbau GmbH Holzgebäudemodul, seine Verwendung, und Verfahren zu seiner Herstellung
WO2014053905A2 (fr) * 2012-10-05 2014-04-10 Hengy Jacques Poutrelle structuree et element modulaire de construction realise avec cette poutrelle

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BE1032369A1 (nl) 2025-08-26

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