A panel comprising a heat providing layer is presented. The panel includes panel coupling means arranged for coupling the panel to adjacent panels. Longitudinal grooves are arranged in the panel along the whole length of the panel. In order to provide heat, at least one electrical end connector is arranged at one or more end panel coupling means. The electrical end connectors are arranged for being electrically connected to the heat providing layer, for being at least partly electrically conductive, and for at least partly protruding from the one or more end panel coupling means, thereby providing an electrical connection between the heat providing layer of the panel and a corresponding heat providing layer of at least one adjacent panel coupled to the panel. The invention also concerns a heating system comprising such a panel, the electrical end connector, and a method for installing such a heating system.

Provided is a panel, in particular a floor panel, ceiling panel, or wall panel, having a laminated multi-layer structure which includes a core layer, a decorative layer above the core layer, a transparent top layer above the decorative layer, and an intermediate layer situated between the decorative layer and the top layer. The intermediate layer is transparent, and made from a protective material which includes a polyurethane composition which is the reaction product of a polyester polyol, a polyether polyol, and an isocyanate. The polyurethane composition is a thermoset polymer material. Also provided is a use of an additional layer in a laminated multi-layer structure of a panel in particular a floor panel, ceiling panel, or wall panel. The additional layer is transparent, and is made from a protective material which includes a polyurethane composition which is the reaction product of a polyester polyol, a polyether polyol, and an isocyanate. The polyurethane composition is a thermoset polymer material.

A set of planks (10) for covering a surface (12), comprising a first plank (16) having a first edge (24) defining a connecting tongue (26), and a second plank (18) having a second edge (28) defining a connecting groove (30), the first plank being movable between a disconnected position and a connected position, in which the connecting tongue is snap-fit in the connecting groove, the connecting tongue comprising a distal protrusion (40A) and a proximal protrusion (40B) adapted to abut upwards in the connected position against a proximal lip (42A) and a distal lip (42B) of the connecting groove. The second edge defines a guiding recess (38) at least partly located above the proximal lip (42A) for receiving the distal protrusion in an intermediate position of the first plank, in which the proximal protrusion abuts downwards against the distal lip.

The invention relates to a flooring panel suitable for constructing a floor covering, which panel comprises a core layer and a decorative top layer and a layer situated between the core layer and the decorative top layer which enables improves sound performance.

A floor panel contains opposite edges that contain coupling parts to link two floor panels. These coupling parts contain locking planes: first and second locking planes on the first edge with an enclosed angle between 90° and 175°; and third and fourth locking planes on the second edge with an enclosed angle between 90° and 175°. The first locking plane is closer to the top of the floor panel than the second locking plane. The angle with the surface of the floor panel of the first locking plane is smaller than the second locking plane. The angle with the floor plane surfaces of the third locking plane is smaller than that of the fourth locking plane. The second locking plane is provided for interaction with the fourth locking plane of a coupled panel. The first locking plane is provided for interaction with the third locking plane of a coupled panel.

A panel including an upper side, a lower side, a core and complementary locking elements provided in pairs on opposing panel edges. At least one pair of locking elements has complementary hook profiles, namely a receiving hook and an arresting hook. The receiving hook has a hook periphery arranged remote from the main body and a receiving recess arranged in the vicinity of the basic body. The receiving recess is open towards the panel upper side, and the arresting hook has an arresting recess, arranged in the vicinity of the basic body and open towards the panel lower side, and has an arresting shoulder remote from the basic body and which, in the vertical joining direction, fits into the receiving recess of the receiving hook. The arresting hook has a vertically locking arresting contour and the receiving hook has a form-fitting contour, which form fits with the arresting contour of the arresting hook. The arresting hook has, near the basic body, a horizontally locking retaining surface on its arresting shoulder and the receiving hook has a horizontally locking retaining surface arranged remote from the basic body in the receiving recess. The receiving hook is provided with a sealing groove open to the panel upper side, and the arresting hook has a sealing strip projecting towards the panel lower side, which in the joined-together state of the complementary hook profiles fits into the sealing groove. The sealing groove and the sealing strip are arranged in the region of the panel core, and the surface of the sealing groove is formed from the material of the panel core and/or the surface of the sealing strip is formed from the material of the panel core.

A tile system for covering a surface. The tile system comprises a first tile assembly connected to a second tile assembly by a connector. Each tile assembly comprises a first tile stacked on a second tile, the first tile and the second tile joined to a reinforcing material disposed therebetween. The connector comprises a first component and a second component that is complementary to the first component. The first component is mounted to the first tile assembly, and the second component is mounted to the second tile assembly.

A method of assembling resilient floorboards is disclosed that includes the step of bending an edge of a floorboard during the assembling. The bending reduces the force required for connection of the edge to another edge of a juxtaposed floorboard. The floorboards may be provided with a mechanical locking system for vertical and horizontal locking of two adjacent floorboards.

Building panels, especially floor panels are shown, which are provided with a locking system that is configured to lock the adjacent edges by angling and that have a tongue and a strip on the same edge, and a method to divide a board and produce such building panels. A method for dividing a floor element, into a first floor panel and a second floor panel, said floor element including a core provided with a decorative surface layer and a balancing layer, wherein the method includes the step of forming, through the balancing layer or the decorative surface layer, a second groove by displacing the floor element past a fixed tool.

The invention relates to an area covering element including at least one sheet-like carrier core, at least one protective layer and a decorative layer arranged between the sheet-like carrier core and the at least one protective layer. The sheet-like carrier core consists in this case of a strong, load-bearing carrier material and has at least an upper side and an underside arranged opposite from the upper side and also at least a first and second side face, arranged opposite from one another and respectively joining the upper side and underside. The decorative layer is formed by a printed film, which is firmly connected to the carrier core, the printed film at least partially covering at least the upper side and the first and second side faces of the sheet-like carrier core and the protective layer covering the full surface area at least of the printed film connected to the carrier core.