SANDWICH ELEMENT AND ROOF STRUCTURE WITH SUCH ELEMENTS

A roof is formed by sandwich elements situated in a direction along the roof slope and resting on transverse beams. The sandwich element consists of a heat insulating core (11) with the upper side covered by an upper metal sheet (12) and the lower side covered by a lower metal sheet (13). The metal sheets are glued to the core. One of the long sides of the upper metal sheet (12) ends with a groove (14) which has a raised side (24) with upper portion (25) bent inwards, and the other long side ends with a hook (15) so that the hook (15) of a sandwich element can be coupled to the upper portion (25) of the raised side (24) of another sandwich element and lock the elements together vertically. A longitudinal sealing element (22) is clamped between the hook and the raised portion upon coupling. The elements are fastened with screws from the groove down to the substructure. An additional sealing element (26) of cellular rubber is clamped between the hook (15) and the opposite wall in the groove (14) so that the screws will be concealed and not exposed to water stress.