Tile Floor Base Layer

Use screws to attach this layer to the floor structure image 4.

Tile floor base layer. Preparing a subfloor is an essential step for installing floor tile it provides a level surface that will allow the tiles to properly stay in place. The top layer can be 1 4 inch plywood or a commercial substrate made specifically for flooring underlayment. The bottom layer should be a minimum of 3 4 inch thick. There are various types of tile underlayment but all serve to smooth out uneven spots in a subfloor and create an unbending layer that prevents the floor from flexing underfoot.

This guide will show you how to prepare your subfloor for a tile installation project to ensure that it s fit to support ceramic or porcelain tile. For example base flooring layers need to be firm flat and deflection free for ceramic tile or natural stone. Previously ceramic tile floors were generally installed on a wet mortar base layer laid by a skilled professional. Introduced around 1970 cement based backer board and thin set adhesives not only made professional installation quicker and therefore cheaper but it also made it possible for everyday diyers to install high quality ceramic.

Before you begin tiling over tile conduct a thorough assessment of the base layer to pinpoint any surface irregularities which can cause foundational problems down the. Heavy objects such as cast iron tubs refrigerators and clothes washers need strong flooring.