Abstract: A panel connecting means including front and rear clamping strips, a screw-receiving channel member, reinforced plastic means connected to and joining the rear clamping strip and the channel member, and screws extending through the front clamping strip and received in the channel member.

Abstract: At each joint between pairs of adjacent foam panels, a vertical edge portion of one of the panels encases a major portion of the periphery of each of a plurality of vertically spaced cylindrical double socket members and a vertical edge portion of the other of the panels is correspondingly recessed to receive minor portions of the periphery of the socket members protruding from the one panel. Also at each joint, two vertically elongated clamps are secured respectively on opposite sides of the panels by pairs of screws, the screws of each pair being threaded respectively into opposite sockets of one of the double sockets. Opposite vertical edge portions of each clamp are vertically grooved on the side of the clamp facing the panels for respectively receiving a pair of gaskets.