acoustic operable partitions gym dividers ACOUSTIC WALLS Skyfold is an acoustic folding wall that is hard, rigid and flat in its down position. The innovative design of the internal wall seals emerges as one of the key features of the Skyfold system. Not only do they eliminate the need for wall and floor tracks, they prevent the marring of adjacent wall surfaces and allow Skyfold walls to be installed at 90° to each other. Extremely pliable, Skyfold’s end seals will fit snugly against most surfaces, including masonry blocks. The flexible horizontal seals at the top and bottom press firmly against the acoustical barrier at the top of the pocket and against the floor.