The parent patent describes an appts. for making laminated insulating panels, e.g., for refrigerated vehicles, which consists of parallel outward and return paths, carrying trolley-mounted tables on which an outer facing sheet is coated with resin and reinforcing fabric, and then an insulating core block, e.g., of polyurethane rigid foam, is placed upon this. This is followed by a treatment oven etc. In the patent of addn., a second feed station is introduced, on the return path, where a second application of resin, reinforcing fabric and facing sheet is prepd. for receiving the block from the first path, thus enabling both faces to be applied to the core block in one continuous operation. Facing sheet is turned over and fed continuously from one path to the other.