This invention relates to a method for adhering floor tiles together and the flooring system thereby created. The method utilizes individual adhesive units as fasteners for attachment of each floor tile to the next contiguous floor tile. The adhesive units are a multi-layered composite comprised of at least one adhesive layer and at least one layer of polymer film or textile substrate. When a series of floor tiles are attached to one another in this manner, a floating floorcovering article is achieved.

A vertical joint system for substrates is formed with joints and which engaged by relative motion in a direction perpendicular to major surfaces and of the substrate. The joints are configured to enable relative rotation of up to 3 degrees while maintaining engagement of the joints. The joints and are further configured to form two locking planes one on each of the inner and outer most sides of the joint. Engagement about the locking planes is provided by transverse outward extending surfaces. At least one surface in each pair of engaging surfaces is smoothly curved. The joints and can be further arranged to provide a third locking plane parallel to and between the locking planes. The joints are disengaged by combination of a downward rotation of one joint relative the other then application of a downward force.

A set of subfloor panels including a joint configured to be glued is provided. The joint includes a tongue at a first edge of a first panel and a tongue groove at a second edge of a second panel. The tongue and the tongue groove are configured for positioning of the first panel relative to the second panel in a vertical direction, wherein a lower lip of the tongue groove extends beyond an upper lip of the tongue groove. An element protrudes from the lower lip and an underside of the first edge includes an element groove. The element and the element groove are configured for positioning of the first panel relative to the second panel in a horizontal direction. The lower lip includes a first impact surface, and the first edge includes a second impact surface. The first impact surface is configured to cooperate with the second impact surface.

A set of essentially identical floorboards each including a front face and a rear face extending in the horizontal plane, a core, and a surface layer, a mechanical locking system is arranged at least at two opposite edges for connecting a floorboard with an adjacent floorboard in a horizontal and a vertical direction, said mechanical locking system being configured for connecting the floorboard with the adjacent floorboard by vertical folding, wherein one of said opposite edges is provided with a horizontally extending protrusion at an upper edge, and wherein said protrusion is configured to overlap a surface groove at an upper edge of the other of said opposite edges, such that two connected and adjacent floorboards have upper overlapping edges.

A vertical joint system for substrates is formed with joints and which engaged by relative motion in a direction perpendicular to major surfaces and of the substrate. The joints are configured to enable relative rotation of up to 3 degrees while maintaining engagement of the joints. The joints and are further configured to form two locking planes one on each of the inner and outer most sides of the joint. Engagement about the locking planes is provided by transverse outward extending surfaces. At least one surface in each pair of engaging surfaces is smoothly curved. The joints and can be further arranged to provide a third locking plane parallel to and between the locking planes. The joints are disengaged by combination of a downward rotation of one joint relative the other then application of a downward force.

A panel for wall-, ceiling- or floor coverings is provided, the panel comprising an upper side, a lower side, and front ends, defining a circumference of the panel in the installed state, and at least one front end is protruded with respect to the circumference by a detachable protruding lip formed at the lower side, one horizontal locking groove at the lower side, characterized in that the protruding lip has a predetermined break-off surface. Furthermore, methods are provided for manufacturing wall-, ceiling- and/or floor coverings comprising or consisting of a plurality of the panels.

A floor panel is of synthetic material and forms a layer-shaped substrate with first and second pairs of opposite edges. The first pair of opposite edges has coupling parts forming a first mechanical locking system, which, in a coupled condition of two of such floor panels, effects a locking in the plane of the floor panels and perpendicular to the respective edges, and forms a second mechanical locking system, which, in a coupled condition of two of such floor panels, effects a locking transverse to the plane of the panels. The coupling parts on the first pair of opposite edges are realized substantially in the material of the floor panel itself. The floor panel is provided with an edge configuration on the second pair of edges allowing two of such floor panels to be positioned with their respective edge alongside each other and free from mechanical horizontally active locking systems.

A floor panel is of synthetic material and forms a layer-shaped substrate with first and second pairs of opposite edges. The first pair of opposite edges has coupling parts forming a first mechanical locking system, which, in a coupled condition of two of such floor panels, effects a locking in the plane of the floor panels and perpendicular to the respective edges, and forms a second mechanical locking system, which, in a coupled condition of two of such floor panels, effects a locking transverse to the plane of the panels. The coupling parts on the first pair of opposite edges are realized substantially in the material of the floor panel itself. The floor panel is provided with an edge configuration on the second pair of edges allowing two of such floor panels to be positioned with their respective edge alongside each other and free from mechanical horizontally active locking systems.

The invention may include a main structure made from an insulating material, plugs that interrupt the continuity of the main structure, peripheral profiles connected to the main structure, a first impermeable laminar body and a second impermeable laminar body covering, respectively, at least one upper surface and at least one lower surface of the main structure, said two surfaces being in opposite planes and said laminar bodies being connected to at least the main structure. The invention also may include a decorative external layer connected to the first laminar body, said first laminar body being connected to at least the upper surface of the main structure. The profiles may extend along the entire periphery of the main structure.

A set of essentially identical subfloor panels including a joint configured to be glued, wherein the joint includes an element at a strip which protrudes from a first joint edge at an edge of a panel and an element groove at an adjacent edge. The joint includes a flexible tongue which is configured to cooperate, in the joined position, with a tongue groove for positioning of the panel relative the adjacent panel in a first vertical direction. The joint is configured for a joining of the edge and the adjacent edge by a vertical motion of the edge relative the adjacent edge. A space above the strip and between the element and the first joint edge is configured to be filled partly or completely with a glue before the edge and the adjacent edge are joined.