Patent ID: 7213680

Claim:
A method of forming a pleated panel of an acoustical wall covering and installing in situ on a wall in a movie theatre interior between opposing trims mounted to the wall in spaced relation, comprising the steps of: (a) attaching a first end of a panel portion of an acoustical wall covering to adhesive-faced opposing sides of an elongate strip to form an acoustical wall covering assembly, said elongate strip defining a plurality of spaced-apart groups of spaced-apart scores; (b) attaching a lateral end portion of the elongate strip to a ceiling support member; and (c) forming a plurality of pleats in the panel by folding the elongate member on the scores at each one of the group of scores while securing the formed pleat to the ceiling support member, whereby the panel, being pleated and attached in situ to the ceiling support member and cut from the bolt, covers the wall.