O’Connor Building March 19, 2014Commercial, Deck Membrane & Water Proofingjcloughley The Deck is shot-blasted and ready for install. A moisture check is completed prior to coating. Prep work is done After the surface is prepped, expantion joints and stress cracks are cased and filled. The coating process begins. The base membrane is installed. The finished product creates a seamless water-tight membrane coating, with a slip-resistant top coat. Proper mixing is a must.