US Patent 9464436 Prefabricated panel for a building

A prefabricated building element is configured to be connected to a lateral side of a prefabricated building structure for forming a part of a building such that the building element forms a wall or a roof slab or a floor slab of a building. The building element includes a wooden core arranged adjacent to at least one insulating layer, and at least one engagement means for later engagement with the prefabricated building structure by means of a connecting device, wherein the building structure is a prefabricated module or another prefabricated building element.