Abstract: A lightweight building board element, wherein the element has the shape of a first spatially extending wave, wherein the upper side of said element has at least one wave peak and the lower side of said element has at least one wave trough, wherein the first wave expands transversally or radially, and wherein the at least one wave peak and the at least one wave trough exist in the form of a second wave, and wherein the lightweight building board element contains or consists of bonded wood fibers or bonded wood shavings or bonded wood fibers and wood shavings.

Abstract: A core layer suitable for a multilayer composite including at least one surface layer and one core layer, the surface layer arranged to at least partially cover the core layer and be fixedly connected thereto, wherein the core layer has elements composed of wood, which elements have plate-like regions arranged in zig-zag-shaped fashion, wherein a plate-like zig region of an element with an adjoining plate-like zag region of the element form a common edge between them, in such a way that the wood element of zig-zag-shaped form is formed, wherein elements of zig-zag-shaped form are arranged in the core layer such that two such edges of two different elements cross one another at a non-zero angle, and wherein the two elements are fixedly connected to one another at the crossing point. In one embodiment, a wood element of zig-zag-shaped form may be adhesively bonded to a planar wood element.

Abstract: A core layer suitable for a multilayer composite including at least one surface layer and one core layer, the surface layer arranged to at least partially cover the core layer and be fixedly connected thereto, wherein the core layer has elements composed of wood, which elements have plate-like regions arranged in zig-zag-shaped fashion, wherein a plate-like zig region of an element with an adjoining plate-like zag region of the element form a common edge between them, in such a way that the wood element of zig-zag-shaped form is formed, wherein elements of zig-zag-shaped form are arranged in the core layer such that two such edges of two different elements cross one another at a non-zero angle, and wherein the two elements are fixedly connected to one another at the crossing point. In one embodiment, a wood element of zig-zag-shaped form may be adhesively bonded to a planar wood element.

Abstract: A core layer is provided which is suitable for a multilayer composite that includes at least one cover layer and the core layer. The cover layer is arranged so as to at least partially cover the core layer and be fixedly connected thereto. The multilayer composite includes the core layer, the core layer having layers which have corrugated wooden elements. The corrugated wooden elements are arranged in an oriented manner in at least one layer.

Abstract: A core layer suitable for a multilayer composite including at least one surface layer and one core layer, the surface layer arranged to at least partially cover the core layer and be fixedly connected thereto, wherein the core layer has elements composed of wood, which elements have plate-like regions arranged in zig-zag-shaped fashion, wherein a plate-like zig region of an element with an adjoining plate-like zag region of the element form a common edge between them, in such a way that the wood element of zig-zag-shaped form is formed, wherein elements of zig-zag-shaped form are arranged in the core layer such that two such edges of two different elements cross one another at a non-zero angle, and wherein the two elements are fixedly connected to one another at the crossing point. In one embodiment, a wood element of zig-zag-shaped form may be adhesively bonded to a planar wood element.

Abstract: A core layer suitable for a multilayer composite including at least one surface layer and one core layer, the surface layer arranged to at least partially cover the core layer and be fixedly connected thereto, wherein the core layer has elements composed of wood, which elements have plate-like regions arranged in zig-zag-shaped fashion, wherein a plate-like zig region of an element with an adjoining plate-like zag region of the element form a common edge between them, in such a way that the wood element of zig-zag-shaped form is formed, wherein elements of zig-zag-shaped form are arranged in the core layer such that two such edges of two different elements cross one another at a non-zero angle, and wherein the two elements are fixedly connected to one another at the crossing point. In one embodiment, a wood element of zig-zag-shaped form may be adhesively bonded to a planar wood element.

Abstract: Method of making a wavy wood element (B) from a wood element •(A), wherein the method comprises at least steps (H1) to (H4): •(H1) providing a wood element (A), which comprises fibers and lignin on or between said fibers; •(H2) heating the wood element (A) to a temperature which is sufficient to soften or melt at least a part of the lignin; •(H3) deforming the wood element heated in step (H2) such that a wavy wood element (B) is formed; •(H4) cooling the wood element deformed in step (H3); characterized in that the deforming in step (H3) is performed such that the ratio of the wave height to the thickness of the wavy wood element (B) equals or is more than 2:1; wherein the term “thickness” signifies the shortest distance between an upper side and the respective lower side of the wavy wood element (B), and the term “wave height” signifies the shortest distance between two imaginary planes which run in parallel to one another between which the wavy wood element (B) may be arranged such that the waves are positi