The preferred method for installing Glue-Up ceiling panels is to apply the adhesive directly to the back of the panels. You can apply tube adhesive in a “X” or “M” pattern in a 1/8-inch bead or use use a notched trowel (1/4 x 1/4 x 3/4) and spread the adhesive evenly on the panel. Keep adhesive 1/2-inch from the panel edge. ACP, the manufacturer of Fasade recommends using Manus adhesive. Do not use double-sided tape to install ceiling panels.