PURPOSE: To shield with ease any space between adjacent panels by shielding a joint part between the adjacent parts by coating a joint part between adjacent panels with a strip of conduction plate, bonding metal surfaces of the adjacent panels to each other with use of a conductive double-coated tape, and electrically connecting the adjacent panels through the strip of conduction plate and the conductive double-coated tape.

CONSTITUTION: A space 9, i.e., a joint part is formed between adjoining wall panels P1, P2 and a packing 10 is inserted between those panels, for securing the absorption of any error produced in panel assembly and a contact between a joint member 8 and a wall panel end surface. A conductive double-coated tape 11 is stuck to the outer surface of the adjacent wall panel so as to cover the space 9. The conductive double-coated tape is yielded by impregnating a special acrylic series adhesive agent in surface-conducted polyester fibers and interspersing surface-stabilizing copper powder in the adhesive agent. A strip of conduction plate 12 is stuck to the other surface of the conductive double-coated tape so as to stride the space between the adjacent wall panels. Hereby, the adjacent wall panels are electrically connected via the conductive double-coated tape and the strip of conduction plate to shield the space therebetween.