How to Waterproof With Polyethylene Sheet for Tile

Tile can fall prey to water damage over time. This can cause unsightly appearances on the tile and corrode it. To remedy this situation, apply a waterproof barrier on top of the tile. One such barrier is a polyethylene sheet. Numerous manufacturers make polyethylene sheets for the purpose of waterproofing tile. You will need to follow the specific instructions that come with your product. However, there are many commonalities in the intallation process regardless of the manufacturer.

Sealant
Hand roller

Instructions

- 1
  Place the metal piece of a roll of measuring tape at the edge of the tile. Extend the roll of measuring tape and record the length of the tile.
- 2
  Place the metal piece of a roll of measuring tape at an adjacent edge of the tile. Extend the roll of measuring tape and record the width of the tile.
- 3
  Cut the proper dimension of polyethylene sheet for the tile with a knife or scissors. Verify these dimensions with a measuring tape.
- 4
  Clean the tile with standard cleaning solution to remove any dirt or other obstructions. Make the surface smooth and free of obstructions.
- 5
  Dry the tile with a cloth.
- 6
  Apply a layer of sealant around all edges of the bottom of the polyethylene sheet. Place this sealant approximately 3/4 of an inch from the edge of the sheet. Lay the sheet down on the smooth and clean tile surface.
- 7
  Flatten the polyethylene sheet flush on top of the tile, using a hand roller. Allow the sealant to dry for approximately two hours.

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