Method of manufacturing a sandwich board and a sound insulating structure

A panel suitable for the application as a wall panel, a ceiling panel or a floor panel, comprising a first sheet, a second sheet and a core, said core comprising an elastic, vibration deadening compound effectively bridging the space between and adhering together said sheets so as to provide a sandwich board structure, wherein at least one through opening has been provided in said second sheet, a coating of compound has been applied onto at least one of said sheets, said first and said second sheet have been placed in overlaying, mutually spaced relationship with said coating in an intermediate position, a compression force has been applied onto said sheets in order to urge them together, said compression force has been adjusted as appropriate depending on an evaluation of the result of an inspection through said opening, and wherein said compound has set to an elastic, vibration deadening state whereby to provide said core.

A sound insulating structure for use as a wall, a ceiling or a floor, comprising first plates, arranged in coplanar and contiguous relationship in order to form a first structural layer, second layer plates arranged in coplanar relationship in order to form a second structural layer in spaced parallel relation with said first structural layer, and a core, which core effectively bridges the space between and adheres together plates of the respective layers, and which core comprises an elastic, vibration deadening mass, wherein said structure has been manufactured by providing at least one through opening in each of said second plates, applying compound onto at least one of said first or said second layer plates to provide at least part of said core, bringing together plates of said second structural layer with plates of said first structural layer, applying a compression force in order to urge said plates of respective structural layers together, using said openings to inspect the space between the structural layers, adjusting the compression force as appropriate depending on an evaluation of the result of the inspection, and allowing said mass in said core to set to an elastic state.