Installation Steps for VERSA-LOK Mosaic

Before you add each course, sweep off the tops of the installed units to remove any debris that might interfere with the next course. As you position the units, slide them into place. This will help remove any imperfections and debris from the surfaces of adjoining units and ensure a tight fit.

Place and pin Mosaic panels. Use a mallet and an extra pin to seat the installed pins about 1 inch below the top surface of the upper units. After pinning, pull the units forward to remove any looseness in the connections. Then check the alignment.

Always install an entire four-unit panel before proceeding to the next panel on that course. Do not proceed to the next course of panels until you have completed the entire previous course, including all pinning. At this point you should check the alignment at the back of the units, and the level of the panel from front to back and side to side.    


Step 4 Ensure Proper Drainage and Backfill

Proper drainage is critical to the performance of any retaining wall system. Drainage aggregate is used behind all walls to keep water pressure from building up behind the wall face. In addition, for walls over 3 feet high, perforated drain pipe is used to collect and eliminate large amounts of water from behind the wall.

Lay the drain pipe on a 1- to 2-inch layer of drainage aggregate directly behind the above-grade course. Next, place more drainage aggregate-- typically 3/4-inch clear, free-draining, angular gravel--on top of the drain pipe and to a depth of 12 inches behind the wall.