Unroll expansion material and cut to needed length. Attach to adjacent material (brick, block, existing concrete, etc.) using QUIKRETE Polyurethane Construction Adhesive (#9902-10), nails or staples before pouring new concrete. The top of the expansion joint should be at the same level as the new concrete being placed. Pour concrete mix and finish. Note: The expansion joint comes with a perforated tear off strip called a 'zip cap'. The 'zip cap' design allows the top of the expansion joint to be removed to provide space for a caulk bead. If caulking is not desired, install the expansion joint with the 'zip cap' on the bottom.