Page 1 Page 2 Page 3 Page 4 Page 5 Page 6 Page 7 Page 8 Page 9 Page 10 Page 11 Page 12 Page 13 Page 14 Page 15 Page 16 Page 17 Page 18 Page 19 Page 20 Page 21 Page 22 Page 23 Page 24 Page 25 Page 26 Page 27 Page 28 Page 29 Page 30 Page 31 Page 32 Page 33 Page 34 Page 35 Page 36 Page 37 Page 38 Page 39 Page 40 Page 41 Page 42 Page 43 Page 44 Page 45 Page 46 Page 47 Page 48 Page 49 Page 50 Page 51 Page 52 Page 53 Page 54 Page 55 Page 56 Page 57 Page 58 Page 59 Page 60 Page 61 Page 62 Page 63 Page 64 Page 65 Page 66 Page 67 Page 68 Page 69 Page 70 Page 71 Page 72 Page 73 Page 74 Page 75 Page 76 Page 77 Page 78 Page 79 Page 80 Page 81 Page 82 Page 83 Page 84 Page 85 Page 86 Page 87 Page 88 Page 89 Page 90 Page 91 Page 92 Page 93 Page 94 Page 95 Page 96 Page 97 Page 98 Page 99 Page 100 Page 101 Page 102 Page 103 Page 104 Page 105 Page 106 Page 107 Page 108 Page 109 Page 110 Page 111 Page 112 Page 113 Page 114 Page 115 Page 116 Page 117 Page 118 Page 119 Page 120 Page 121 Page 122 Page 123 Page 124 Page 125 Page 126 Page 127 Page 128 Page 129 Page 130 Page 131 Page 132 Page 133 Page 134 Page 135 Page 136 Page 137 Page 138 Page 139 Page 140such as shower benches, shelving, shower floors, and vertical shower walls. Liquid membranes are usu- ally the most affordable way to meet ANSI A118.10 waterproofing specifications. They are also often easiest to apply, and may be applied using a brush, roller, trowel or – for very large surfaces – a sprayer. Another advantage of liquid mem- branes is that you can use screws or nails to install the substrate and then uniformly waterproof over the punctures. Waterproofing mesh is then often installed over the liquid membrane at changes in-plane and substrate joints. Crack-isolation membranes Most waterproofing membranes exhibit crack isolation properties that meet ANSI A118.12 crack iso- lation specifications. As moisture levels change, subfloors, adhesives and tile can expand, contract and even crack. Crack-isolation mem- branes help stop in-plane cracks at the subfloor from telegraphing through to the tile. In general, crack-isolation prod- ucts are used for everything from isolating the tile from shrinkage cracks, to tiling over control joints, to protecting the entire floor from potential cracking in the concrete. Keep in mind that these products do not remove the need for expan- sion joints. Tile work must always allow for normal expansion and contraction. One benefit of this two-in-one TECH TALK –––––––––––––––––––––––––––––––––––––––––––––––––––––––––– Liquid membranes are usually the most affordable way to meet ANSI A118.10 waterproofing specifications. Liquid membranes are also often easiest to apply, and may be applied using a brush, roller, trowel or – for very large surfaces – a sprayer. 66 TileLetter | September 2016