What do you put behind tile? This is a question that often arises when planning a bathroom or kitchen renovation. Tiles are a popular choice for their durability and aesthetic appeal, but understanding what lies beneath them is crucial for a successful installation. In this article, we will explore the various materials and considerations that go into preparing the subfloor for tile installation.
The subfloor is the foundation upon which tiles are laid, and its condition can significantly impact the overall success of the tile installation. Before placing tiles, it is essential to ensure that the subfloor is level, clean, and free of any debris or moisture. Here are some common materials and techniques used behind tiles:
1. Concrete Subfloor: Concrete is a common subfloor material, and it requires a few steps to prepare it for tile installation. First, the concrete must be cleaned to remove any dirt or debris. Then, a leveling compound or self-leveling underlayment can be applied to create a smooth, even surface. Finally, a waterproofing membrane is often installed to protect against moisture issues.
2. Wood Subfloor: Wood subfloors require different preparation methods. It is crucial to check for any signs of rot or damage and replace any affected areas. Once the subfloor is stable, a layer of backer board, such as cement board or plywood, is installed to provide a solid, flat surface for the tiles. The backer board is then covered with a thinset mortar before laying the tiles.
3. Concrete Board: Concrete board is another popular option for subfloor preparation. It is a water-resistant material that can be used on both concrete and wood subfloors. After installing the concrete board, a layer of thinset mortar is applied, followed by the tiles.
4. Self-Leveling Underlayment: Self-leveling underlayment is a pourable, cementitious material that can be used to create a smooth, level surface on uneven subfloors. It is particularly useful for concrete subfloors and can be poured directly onto the floor, allowing it to self-level and cure before laying the tiles.
5. Waterproofing Membrane: Waterproofing membranes are essential for preventing moisture from seeping into the subfloor and causing damage to the tiles and surrounding areas. These membranes are typically applied to concrete subfloors and can be installed before or after the leveling compound, depending on the manufacturer’s instructions.
In addition to these materials, it is crucial to consider the following factors when preparing the subfloor for tile installation:
– Tile Size and Thickness: Larger tiles may require a thicker subfloor to ensure they are adequately supported.
– Climate and Humidity: In areas with high humidity or moisture, additional precautions, such as a vapor barrier, may be necessary.
– Installation Method: The chosen installation method, such as direct bond or mortar bed, will also influence the subfloor preparation process.
By understanding what goes behind the tiles and taking the necessary precautions, you can ensure a successful tile installation that will stand the test of time. Remember to consult with a professional if you are unsure about any aspect of the subfloor preparation process.
