Cement Underlyaments for Tile Installations

      

Cement underlyaments have become a popular product for tile installations. They provide a suitable surface for tile to be placed. In the old days, tile contractors simply floated the tile over the floor or wall. The only problem with this technique is that not all surfaces hold tile well. In the last 10 years, fiber-cement companies have introduced cement backerboards to be used for floor and wall applications.

What is a cement backerboard and how does it work? It is comprised of sand, cement and in some instances, a nylon mesh (in the middle of the sheet). It is designed to resist water damage, buckling, and to bond tile safely to its surface. Tile backerboard is available in various sheet sizes and thicknesses ranging from 1/4" to 1/2". The contractor or homeowner can place the product directly over wall studs or floor sheathing, and secure it with roofing nails or backerboard screws. The product should be fastened per the manufacturers' written installation guidelines. Next, he or she will place cement between the sheets and embed a nylon mesh in the mixture. This strengthens the seam and provides a smooth transition between sheets. The final step is adhering the ceramic tile to the backerboard!

Why has this product become popular in recent years? One thing despised by contractors are "call-backs" to fix a problem on a previous job. Fixing the problem means they miss working on new projects that make money. Cement backerboard helps alleviate the "call-back" problem because it is almost indestructible. It is also great for do-it-yourself projects since it installs easy and requires very few tools.

You can purchase cement backerboards at most major retailers. They are usually kept in the tile section, along with all the tools necessary to install the product. Below is a list of tools you will need:

• Snap and score knife
• Nylon mesh
• Roofing nails or backerboard screws
• Tile adhesive

Visit your local retailer for pricing information!