How To Waterproof A Wall Before Tiling

To stick the membrane down use either a paint roller or brush to paint over it with the waterproofing agent.

How to waterproof a wall before tiling. You should not ever put tile directly onto drywall even the green board water resistant kind. The wall in question is plastered with bonding which is very very absorbent of water. You should be attaching the tile to cement. Add up the wall areas and add 10 so you have extra tile for mistakes or future repairs.

Measure each wall area calculating the width times height. Determine how much tile you ll need. It s likely that different styles of tiles will be used for floor and walls based on how much slip resistance they provide. Repeat the previous steps to apply waterproof membrane to the remaining shower walls.

Rub the smooth edge of the trowel over the membrane to smooth out any wrinkles or trapped air bubbles. Press the waterproof membrane into the wet mortar on the wall. Tiles are cut as necessary to fit where they belong. Pattern they ll take is established.

This old house general contractor tom silva shows a foolproof way to build a leak free shower. To prevent water damage you must install a waterproof membrane just below the tile bonding mortar as close to the tile as possible. You protect it with a layer of water proofing material. For our shower we chose a running bond pattern.

You don t really water proof the drywall itself. Use a utility knife to cut an x shaped slit to reveal the shower valve. You ll need a design plan before you start attaching the tile. There are two types of waterproof membranes sheet and liquid applied options.

This means deciding where the first tiles will be laid and how the tiles will align with floor and wall joints. Lay the membrane down so that half is on the wall and the other half on the bathroom floor covering the crack. I read somewhere that it s a good idea to waterproof plaster walls before tiling a shower or bath particularly at the bath edge where someday the caulking and grout may deteriorate and let water in. Fortunately waterproofing an enclosure is only a matter of proper preparation of the walls before the first tile is laid.

Cut the waterproof membrane into lengths of the bathroom walls.