EP2944738B1 - Construction element intended in particular for manufacturing load-bearing walls or partitions for a building - Google Patents

Construction element intended in particular for manufacturing load-bearing walls or partitions for a building Download PDF

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EP2944738B1
EP2944738B1 EP14167909.2A EP14167909A EP2944738B1 EP 2944738 B1 EP2944738 B1 EP 2944738B1 EP 14167909 A EP14167909 A EP 14167909A EP 2944738 B1 EP2944738 B1 EP 2944738B1
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Prior art keywords
panels
construction element
transverse panels
transverse
panel
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German (de)
French (fr)
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EP2944738A1 (en
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Patrice Fiaux
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    • 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
    • E04C2/34—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 composed of two or more spaced sheet-like parts
    • E04C2/36—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 composed of two or more spaced sheet-like parts spaced apart by transversely-placed strip material, e.g. honeycomb panels
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C1/00—Building elements of block or other shape for the construction of parts of buildings
    • E04C1/40—Building elements of block or other shape for the construction of parts of buildings built-up from parts of different materials, e.g. composed of layers of different materials or stones with filling material or with insulating inserts
    • 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
    • E04C2/26—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
    • E04C2/284—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating
    • E04C2/296—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups at least one of the materials being insulating composed of insulating material and non-metallic or unspecified sheet-material
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/02—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls built-up from layers of building elements
    • E04B2002/0202—Details of connections
    • E04B2002/0232—Undercut connections, e.g. using undercut tongues and grooves
    • E04B2002/0234—Angular dovetails
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/02—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls built-up from layers of building elements
    • E04B2002/0256—Special features of building elements
    • E04B2002/0289—Building elements with holes filled with insulating material

Definitions

  • the present invention relates to a construction element intended in particular for the manufacture of load-bearing or partition walls of a building, said building element having an increased thermal insulation capacity.
  • a wooden house has the disadvantage compared to a stone house to be less thermally insulated from the outside because of the high thermal conductivity of the wood panels used to form the load-bearing or separating walls of the house .
  • it is often necessary to add an additional insulating layer between the wooden panels and the interior of the house. This operation therefore increases the manufacturing cost and the manufacturing time of the house.
  • this operation is poorly executed, the thermal insulation of the house is still unsatisfactory compared to that of a stone house.
  • the present invention therefore aims to provide a construction element used in the manufacture of a wooden house and to solve the aforementioned problems.
  • the construction element thus configured advantageously has a reduced thermal conductivity compared to a simple wooden panel. Furthermore, it is no longer necessary to add an additional layer of thermal insulation between the building element and the building interior. In addition, because the insulation material fills all the empty space contained within the building element, the building element has increased rigidity. This increased rigidity considerably lighten the framework based on the building components constituting the low frame of the building, thereby reducing the cost and time of manufacture of the building.
  • This building element 10 comprises a wooden front panel 11 and a wooden back panel 12, said panels being arranged parallel to one another.
  • the separation space between said front panel 11 and said rear panel 12 is segmented into a series of contiguous housings 14 by means of a plurality of transverse panels 13 orthogonally disposed to said front and rear panels.
  • Said transverse panels 13 are advantageously connected at their side edges to the front and rear panels by means of a dovetail connection.
  • the lateral edges of each of the transverse panels 13 are provided with projecting shapes 16 intended to be inserted inside corresponding cavities 15 formed inside the front and rear panels.
  • the internal space of the housing 14 is also completely filled with an insulating material (not shown) so as to give the building element increased thermal insulation and increased rigidity.
  • vacuum is used as the insulation material.
  • the front, rear and transverse panels are impregnated with a liquid resin formed of an aqueous dispersion of a styrene-butadiene copolymer which will prevent gaseous transfer occurring between the interior of the housings 14 and outside. Subsequently, a suction means connected to an opening in the front or rear panel will establish a vacuum of -3 bar pressure inside the housing 14.
  • the transverse panels 13 are provided with through holes 17, each of the through holes communicating the internal space of two adjoining housing. As discussed in detail in the following paragraphs, these holes-provided panels 13 will have less thermal conductivity than a solid wood panel, which will, as a result, increase the thermal insulation power of the building element. 10 as a whole.
  • the transverse panels 13a are wood panels without holes having a width of 26 mm, a height of 515 mm and a thickness of 27 mm, said transverse panels being regularly spaced along the front and rear panels, the space between two adjacent transverse panels being equal to 60 cm.
  • the front and back panels are also unpainted wood panels with a height of 515 mm and a thickness of 27 mm.
  • the transverse panels 13c are provided with three through holes 17c having a diameter of 100 mm, the width of the panels 13c being equal to 146 mm and in the variant of the figure 2d the transverse panels 13d are provided with 11 through holes 17d having a diameter of 60 mm, the width of the panels 13d being equal to 196 mm.
  • Table 1 also indicates for each of the variants the surface ratio Rs between the total surface of the holes of each of the transverse panels and the total surface of each of the transverse panels.
  • Table 1 ⁇ / u> ⁇ pt (in W / (mK) U ec0 (in W / (m2K) U ec1 (in W / (m2K) RS (in%)
  • Variant Fig.2a 0.13 0.48 0
  • Variant Fig.2b 0075 0222 0206 29
  • Variant Figure 2c 0069 0155 0143
  • Variant Fig.2d 0077 0115 0106 31
  • transverse panels with holes (variant of Fig. 2b, 2c and 2d ) have a significantly lower thermal conductivity than the transverse panels without holes in the Fig. 2a .
  • the use of transverse panels provided with holes improves the thermal insulating power of the building elements as a whole.

Description

Domaine techniqueTechnical area

La présente invention concerne un élément de construction destiné notamment à la fabrication de parois porteuses ou de séparation d'un bâtiment, ledit élément de construction possédant un pouvoir d'isolation thermique accru.The present invention relates to a construction element intended in particular for the manufacture of load-bearing or partition walls of a building, said building element having an increased thermal insulation capacity.

Etat de la techniqueState of the art

Dans le domaine du bâtiment, la demande de maisons totalement fabriquées en bois est en constante progression. En effet, ces maisons en bois bénéficient par rapport à des maisons traditionnelles en pierre d'atouts indéniables, tant au niveau du coût de fabrication qu'au niveau de l'aspect esthétique externe. Ces maisons en bois, généralement construites par simple assemblage de panneaux de bois, sont également plus faciles à fabriquer.In the building sector, the demand for houses made entirely of wood is constantly growing. Indeed, these wooden houses have compared to traditional stone houses undeniable assets, both in terms of manufacturing cost and external aesthetic appearance. These wooden houses, usually built by simple assembly of wood panels, are also easier to manufacture.

Toutefois, une maison en bois présente l'inconvénient par rapport à une maison en pierre d'être moins isolée thermiquement de l'extérieur du fait de la forte conductivité thermique des panneaux de bois utilisés pour former les parois porteuses ou de séparation de la maison. Pour palier à ce problème, il faut souvent ajouter une couche additionnelle isolante entre les panneaux de bois et l'intérieur de la maison. Cette opération accroît donc le coût de fabrication et le temps de fabrication de la maison. Par ailleurs, lorsque cette opération est mal exécutée, l'isolation thermique de la maison s'avère être toujours insatisfaisante par rapport à celle d'une maison en pierre.However, a wooden house has the disadvantage compared to a stone house to be less thermally insulated from the outside because of the high thermal conductivity of the wood panels used to form the load-bearing or separating walls of the house . To overcome this problem, it is often necessary to add an additional insulating layer between the wooden panels and the interior of the house. This operation therefore increases the manufacturing cost and the manufacturing time of the house. Moreover, when this operation is poorly executed, the thermal insulation of the house is still unsatisfactory compared to that of a stone house.

Une autre solution connue, décrite dans les demandes de brevet EP 2 525 010 A1 et GB 747,178 , consiste à utiliser des éléments de construction en bois formés par un panneau avant et un panneau arrière reliés entre eux par des panneaux transversaux, l'espace entre deux panneaux transversaux adjacents pouvant être rempli par un matériau d'isolation. Toutefois, cette solution connue ne permet pas d'isoler de manière optimale la maison.Another known solution, described in the patent applications EP 2 525 010 A1 and GB 747.178 is to use wooden building elements formed by a front panel and a rear panel interconnected by transverse panels, the space between two adjacent transverse panels being filled with insulation material. However, this known solution does not allow to isolate the house optimally.

Divulgation de l'inventionDisclosure of the invention

La présente invention vise donc à proposer un élément de construction utilisable lors de la fabrication d'une maison en bois et permettant de résoudre les problèmes susmentionnés.The present invention therefore aims to provide a construction element used in the manufacture of a wooden house and to solve the aforementioned problems.

A cet effet, conformément à l'invention, il est proposé un élément de construction tel que défini dans la revendication 1.For this purpose, according to the invention, there is provided a construction element as defined in claim 1.

D'autres caractéristiques importantes de l'élément de construction de la présente invention sont également définies dans les revendications dépendantes 2 à 8.Other important features of the construction element of the present invention are also defined in dependent claims 2 to 8.

L'élément de construction ainsi configuré possède de manière avantageuse une conductivité thermique réduite par rapport à un simple panneau de bois. Par ailleurs, il n'est plus nécessaire d'ajouter une couche d'isolation thermique additionnelle entre l'élément de construction et l'intérieur du bâtiment. En outre, du fait que le matériau d'isolation rempli tout l'espace vide contenu à l'intérieur de l'élément de construction, l'élément de construction possède une rigidité accrue. Cette rigidité accrue permet d'alléger considérablement la charpente qui repose sur les éléments de construction constituant l'ossature basse du bâtiment, réduisant par voie de conséquence le coût et le temps de fabrication du bâtiment.The construction element thus configured advantageously has a reduced thermal conductivity compared to a simple wooden panel. Furthermore, it is no longer necessary to add an additional layer of thermal insulation between the building element and the building interior. In addition, because the insulation material fills all the empty space contained within the building element, the building element has increased rigidity. This increased rigidity considerably lighten the framework based on the building components constituting the low frame of the building, thereby reducing the cost and time of manufacture of the building.

Brève description des dessinsBrief description of the drawings

D'autres avantages et caractéristiques de la présente invention seront mieux compris à la lecture de plusieurs modes particuliers de réalisation de l'invention et en référence aux dessins dans lesquels:

  • la figure 1 représente une vue en perspective d'un élément de construction conforme à l'invention;
  • les figures 2a, 2b, 2c et 2d représentent respectivement les vues de face de quatre variantes possibles d'éléments de construction conformes à l'invention;
Other advantages and features of the present invention will be better understood on reading several particular embodiments of the invention and with reference to the drawings in which:
  • the figure 1 represents a perspective view of a building element according to the invention;
  • the Figures 2a, 2b, 2c and 2d represent respectively the front views of four possible variants of building elements according to the invention;

Description détaillée d'un mode d'exécution de l'inventionDetailed description of an embodiment of the invention

En référence à la figure 1, il est représenté un élément de construction selon la présente invention. Cet élément de construction 10 comprend un panneau avant en bois 11 et un panneau arrière en bois 12, lesdits panneaux étant disposés de manière parallèle l'un par rapport au l'autre. L'espace de séparation entre ledit panneau avant 11 et ledit panneau arrière 12 est segmenté en une série de logements contigus 14 au moyen de plusieurs panneaux transversaux 13 disposés de manière orthogonale auxdits panneaux avant et arrière. Lesdits panneaux transversaux 13 sont avantageusement reliés au niveau de leurs bords latéraux aux panneaux avant et arrière au moyen d'une liaison en queue d'aronde. À cet effet, les bords latéraux de chacun des panneaux transversaux 13 sont munis de formes de saillie 16 destinées à venir d'insérer à l'intérieur de cavités 15 correspondantes formées à l'intérieur des panneaux avant et arrière. L'espace interne des logements 14 est par ailleurs totalement rempli avec un matériau d'isolation (non représenté) de manière à conférer à l'élément de construction un pouvoir d'isolation thermique accru et une rigidité renforcée. Selon l'invention, on utilise le vide comme matériau d'isolation. Selon l'invention, les panneaux avant, arrière et transversaux sont imprégnés d'une résine liquide formée d'une dispersion aqueuse d'un copolymère styrène-butadiène qui évitera qu'un transfert gazeux s'opère entre l'intérieur des logements 14 et l'extérieur. Par la suite, un moyen d'aspiration connecté à une ouverture pratiquée dans le panneau avant ou arrière permettra l'établissement d'un vide de -3 bars de pression à l'intérieur des logements 14. Par ailleurs, les panneaux transversaux 13 sont munis de trous traversants 17, chacun des trous traversants faisant communiquer l'espace interne de deux logements contigus. Comme analysé en détail dans les paragraphes suivants, ces panneaux 13 munis de trous posséderont un conductivité thermique moindre par rapport à un panneau en bois plein, ce qui, par voie de conséquence, augmentera le pouvoir d'isolation thermique de l'élément de construction 10 dans son ensemble.With reference to the figure 1 , there is shown a construction element according to the present invention. This building element 10 comprises a wooden front panel 11 and a wooden back panel 12, said panels being arranged parallel to one another. The separation space between said front panel 11 and said rear panel 12 is segmented into a series of contiguous housings 14 by means of a plurality of transverse panels 13 orthogonally disposed to said front and rear panels. Said transverse panels 13 are advantageously connected at their side edges to the front and rear panels by means of a dovetail connection. For this purpose, the lateral edges of each of the transverse panels 13 are provided with projecting shapes 16 intended to be inserted inside corresponding cavities 15 formed inside the front and rear panels. The internal space of the housing 14 is also completely filled with an insulating material (not shown) so as to give the building element increased thermal insulation and increased rigidity. According to the invention, vacuum is used as the insulation material. According to the invention, the front, rear and transverse panels are impregnated with a liquid resin formed of an aqueous dispersion of a styrene-butadiene copolymer which will prevent gaseous transfer occurring between the interior of the housings 14 and outside. Subsequently, a suction means connected to an opening in the front or rear panel will establish a vacuum of -3 bar pressure inside the housing 14. In addition, the transverse panels 13 are provided with through holes 17, each of the through holes communicating the internal space of two adjoining housing. As discussed in detail in the following paragraphs, these holes-provided panels 13 will have less thermal conductivity than a solid wood panel, which will, as a result, increase the thermal insulation power of the building element. 10 as a whole.

En référence aux figures 2b, 2c et 2d, il est représenté plusieurs configurations différentes d'éléments de construction selon la présente invention, chacune des configurations se démarquant par la structure spécifique de ses panneaux transversaux. En référence à la figure 2a, les panneaux transversaux 13a sont des panneaux de bois sans trou possédant une largeur de 26 mm, une hauteur de 515 mm et une épaisseur de 27 mm, lesdits panneaux transversaux étant régulièrement espacés le long des panneaux avant et arrière, l'espace entre deux panneaux transversaux adjacents étant égal à 60 cm. Les panneaux avant et arrière sont également des panneaux de bois non troués possédant une hauteur de 515 mm et une épaisseur de 27 mm. À l'intérieur des logements définis par le panneau avant, le panneau arrière et les panneaux transversaux a été injectée une mousse de polyuréthane possédant une conductivité thermique λi de 0.021 W/(mK). Au moyen d'une analyse par éléments finis, on calcule successivement la conductivité thermique λpt de chacun des panneaux transversaux et le coefficient de transfert thermique Uec0 de l'élément de construction. Les résultats obtenus ont été répertoriés dans le tableau 1 ci-dessous. Dans la variante de la figure 2b, les panneaux transversaux 13b sont munis de cinq trous traversants 17b possédant un diamètre de 60 mm, la largeur des panneaux 13b étant égale à 96 mm. Comme précédemment, on calcule alors successivement la conductivité thermique λpt de chacun des panneaux transversaux et le coefficient de transfert thermique Uec1 de l'élément de construction. On calcule également le coefficient de transfert thermique Uec0 d'un élément de construction identique à celui représenté sur la figure 2b, mis à part le fait que tous ses panneaux transversaux sont pleins au lieu d'être munis de trous. Les résultats obtenus ont été répertoriés dans le tableau 1 ci-dessous.With reference to Figures 2b, 2c and 2d , there are shown several different configurations of building elements according to the present invention, each of the configurations being distinguished by the specific structure of its transverse panels. With reference to the figure 2a , the transverse panels 13a are wood panels without holes having a width of 26 mm, a height of 515 mm and a thickness of 27 mm, said transverse panels being regularly spaced along the front and rear panels, the space between two adjacent transverse panels being equal to 60 cm. The front and back panels are also unpainted wood panels with a height of 515 mm and a thickness of 27 mm. Inside the housings defined by the front panel, back panel and cross panels was injected a polyurethane foam having a thermal conductivity λ i of 0.021 W / (mK). By means of a finite element analysis, the thermal conductivity λ pt of each of the transverse panels and the heat transfer coefficient U ec0 of the construction element are successively calculated. The results obtained are listed in Table 1 below. In the variant of the figure 2b , the transverse panels 13b are provided with five through holes 17b having a diameter of 60 mm, the width of the panels 13b being equal to 96 mm. As previously, the thermal conductivity λ pt of each of the transverse panels and the heat transfer coefficient U ec1 of the construction element are then successively calculated. The heat transfer coefficient U ec0 of a component identical to that shown in FIG. figure 2b , apart from the fact that all of its transverse panels are full instead of having holes. The results obtained are listed in Table 1 below.

Les mêmes calculs sont effectués pour les variantes des figures 2c et 2d. Dans la variante de la figure 2c, les panneaux transversaux 13c sont munis de trois trous traversants 17c possédant un diamètre de 100 mm, la largeur des panneaux 13c étant égale à 146 mm et dans la variante de la figure 2d les panneaux transversaux 13d sont munis de 11 trous traversants 17d possédant un diamètre de 60 mm, la largeur des panneaux 13d étant égale à 196 mm.The same calculations are made for the variants of the Figures 2c and 2d . In the variant of the Figure 2c , the transverse panels 13c are provided with three through holes 17c having a diameter of 100 mm, the width of the panels 13c being equal to 146 mm and in the variant of the figure 2d the transverse panels 13d are provided with 11 through holes 17d having a diameter of 60 mm, the width of the panels 13d being equal to 196 mm.

Le tableau 1 indique également pour chacune des variantes le rapport surfacique Rs entre la surface totale des trous de chacun des panneaux transversaux et la surface totale de chacun des panneaux transversaux. Tableau 1 λpt (en W/(mK) Uec0 (en W/(m2K) Uec1 (en W/(m2K) RS (en %) Variante Fig.2a 0.13 0.48 0 Variante Fig.2b 0.075 0.222 0.206 29 Variante Fig.2c 0.069 0.155 0.143 31 Variante Fig.2d 0.077 0.115 0.106 31 Table 1 also indicates for each of the variants the surface ratio Rs between the total surface of the holes of each of the transverse panels and the total surface of each of the transverse panels. <u> Table 1 </ u> λ pt (in W / (mK) U ec0 (in W / (m2K) U ec1 (in W / (m2K) RS (in%) Variant Fig.2a 0.13 0.48 0 Variant Fig.2b 0075 0222 0206 29 Variant Figure 2c 0069 0155 0143 31 Variant Fig.2d 0077 0115 0106 31

On constate donc au vu du tableau 1 que les panneaux transversaux munis de trous (variante des Fig. 2b, 2c et 2d) possèdent une conductivité thermique sensiblement inférieure à celle des panneaux transversaux sans trous de la Fig. 2a. Par ailleurs, en comparant les coefficients de transfert thermique Uec1 et Uec0 dans chacune des variantes, on constate également que l'utilisation de panneaux transversaux munis de trous améliore le pouvoir d'isolation thermique des éléments de construction dans leur ensemble.As can be seen from Table 1, transverse panels with holes (variant of Fig. 2b, 2c and 2d ) have a significantly lower thermal conductivity than the transverse panels without holes in the Fig. 2a . Moreover, by comparing the heat transfer coefficients Uec1 and Uec0 in each of the variants, it can also be seen that the use of transverse panels provided with holes improves the thermal insulating power of the building elements as a whole.

Claims (8)

  1. Construction element (10) intended in particular for the manufacture of bearing or partition walls in a building, said element comprising:
    - a front panel (11),
    - a rear panel (12),
    said front and rear panels (11, 12) being joined to one another by means of a plurality of transverse panels (13) arranged orthogonally to said front and rear panels, said front, rear and transverse panels being made at least partially of wood and defining a series of contiguous housings (14), the internal space of said housings (14) being completely filled with an insulating material, said insulating material giving the construction element higher thermal insulation capability and greater rigidity, in which said transverse panels (13) are pierced with through-holes (17), said through-holes being configured in such a way as to reduce thermal conductivity of said transverse panels thereby improving the thermal insulation capability of the construction element, characterized in that the insulating material is a void and in that said front, rear and transverse panels are impregnated with a liquid resin made of an aqueous dispersion of a styrene-butadiene copolymer so as to prevent that a gaseous transfer takes place between the inside of the housings (14) and the outside.
  2. Construction element (10) according to claim 1, characterized in that the transverse panels (13) have projecting shapes (16) on their lateral edges, said projecting shapes being intended to become inserted in corresponding cavities (15) of the front and rear panels (11, 12) thus allowing a dovetail connection between said transverse panels on the one hand, and said front and rear panels, on the other hand.
  3. Construction element (10) according to any one of the preceding claims, characterized in that the through-holes (17) have a diameter of between 2 cm and 15 cm.
  4. Construction element (10) according to any one of the preceding claims, characterized in that the total holed surface area of each of the transverse panels (13) represents between 25 % and 35 % of the total surface area of said panel.
  5. Construction element (10) according to claim 4, characterized in that the total holed surface area of each of the transverse panels (13) represents around 30 % of the total surface area of said panel.
  6. Construction element (10) according to any one of the preceding claims, characterized in that it has a weight per unit area of between 20 kg/m2 and 50 kg/m2.
  7. Construction element (10) according to any one of the preceding claims, characterized in that the front, rear and transverse panels (11, 12, 13) are three-ply panels.
  8. Construction element (10) according to any one of the preceding claims, characterized in that the front, rear and transverse panels (11, 12, 13) are made entirely of wood, and preferably fir wood.
EP14167909.2A 2014-05-12 2014-05-12 Construction element intended in particular for manufacturing load-bearing walls or partitions for a building Active EP2944738B1 (en)

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CN109868932A (en) * 2019-02-15 2019-06-11 江苏博一节能科技有限公司 A kind of Novel light thermal-insulation external wall and preparation method thereof
US10961701B2 (en) * 2017-04-28 2021-03-30 Eduardo Alberto Grundland Farace Interlocking construction block

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SE540654C2 (en) * 2017-03-01 2018-10-09 Soeren Viklund Design elements and method for making them

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CN109868932A (en) * 2019-02-15 2019-06-11 江苏博一节能科技有限公司 A kind of Novel light thermal-insulation external wall and preparation method thereof

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