Is Redguard On Tile Walls Necessary

As i started to chip the tile out it pulled wonderboard off the wall.

Is redguard on tile walls necessary.

The end result should be a bathtub surround that is red in color. These membranes consist of products such as custom building products redgard and laticrete s hydrobarrier and hydroban and mapei s aquadefense. Meaning the tile was well bonded to the redgard by the thinset and the redgard was bonded to the wonderboard well enough that i had to patch the cbu rewaterproof before installing the new tile. Elastomeric or liquid waterproofing membranes are one of the most convenient methods of waterproofing shower walls before installing tile.

Apply a minimum 3 64 1 2 mm of redgard over the joint and the substrate following the instructions provided previously. Water damage prevention is active from both sides of the redgard membrane. You can red guard that 2x to get a waterproof sub for tiles. This means redgard will expand and contract ever so slightly to prevent cracks from forming in the shower tile.

Or if your shower has denshield or green board drywall or equivalent that isn t waterproof redguard will seal coat it and ready it for tiles. I had to replace a tile that broke when the glass door guy tried to drill through it. The bathtub walls are now completely waterproof and the redgard also serves as a crack isolation membrane. After the tile work is properly set follow the architect s and manufacturer s instructions to fill the joint with a specified color sealant.

It is great for someone who s popped off the contractor tiles on the shower and everything is intact and solid. Install the tile work onto the membrane but do not bridge the joint.