Install a membrane wherever a floor exhibits the potential of cracking tile or allowing water to penetrate. Isolation and waterproofing membranes are appropriate for hard-bodied tiles and are also necessary for certain vinyl and laminate installations.
These materials allow substrates to expand and contract without telegraphing the movement to the tile. Two-part membranes, adhesive and mesh or chlorinated polyethylene (CPE), are applied directly to the surface to be tiled. The easiest materials to use employ a roller-applied adhesive. On old stable concrete, cover each crack separately. On new concrete that you suspect will crack with age, cover the entire floor.
Use a waterproofing membrane in shower enclosures and any area that will get wet. Felt paper, polyurethane sheets, and two-part products work well. Many products function as both a waterproofing and isolation membrane.
- Tile Design Principles & Ideas: Color, Patterns & Texture
- Planning Your Tile Installation
- Preparing Surfaces for Tiling
- Mastering Tile Installation Techniques
- Tiling Floors, Walls & Countertops
- Tiling Special Spaces
- Tiling Decorative Accents
- Tiling Bathrooms: How to Tile Bathroom Features
- Tiling Outdoor Projects
- Installing Resilient & Parquet Tile
- Installing Laminate, Cork & Carpet Tiles
- Tile Repair & Maintenance