Important Information for Choosing the Correct Tile Underlayment for a New Wall or Floor Tile Installation


When it comes to a floor tile installation having the right tile underlayment can make or break the life of your floor tile installation, And The same rings true for a wall tile installation.  

All Floor Tiles requires a flat and stable surface, and especially when it comes to tiling a floor with ceramic or stone floor tiles.
If the underlayment isn't right for these floor tiles, you'll probably find yourself routinely replacing cracked tiles.

In the case of tiling a floor with resilient floor tiles, such as vinyl floor tiles, If the underlayment isn't smooth even the tiniest lump or bump underneath the tiles will show right through.

Click On Each Picture Below For More On How To Install The Underlayment


Plywood is the perfect tile underlayment for vinyl floor tiles, cork floor tiles, parquet floor tiles, and laminate floor tiles

You can even use a plywood underlayment for Stone and Ceramic floor Tiles as long the structure of the floor is firm, and the floor tiles will not be getting very wet.

Cement Backerboard

Cement backerboard is about the best underlayment you could use for any tiles and especially if they'll be getting wet.

They're the perfect solution for laying floor tiles in such areas as bathrooms, laundry rooms, basement floors and even in the kitchen.

Tile Over Tile By Using Your Existing Floor Tile As Your New  Underlayment.

Installing tile over tile can work quite well if you prepare your existing floor tile to work as your  underlayment.

Wall Tile Underlayments

In most cases a smooth even drywall works correctly for installing wall tiles. But you'll need an underlayment that's not only stable but also water resistant for areas that will be exposed to water.

Drywall has a paper surface, and paper can harbor mold, So when it comes to tiling a shower or tub surround, you'll need a smooth moisture resistant barrier to protect the walls from the damages of water.

Click on the pictures below for instructions on installing them


 Standard drywall which is otherwise known as wallboard or sheetrock works fine for just about any wall tile installation.

But you should never install your wall tiles to just sheetrock in areas where the wall will be exposed to water like for a shower, tub surround.  If there's any chance that your wall tile installation will be getting wet you'll need to use cement backer board or fiberboard instead.

Fiberglass Board

In the past green board or blue board were the best underlayment for damp areas, But now there's  Fiberboard and it offers much more protection against moisture. Fiberboard has a lot of the similarities of drywall but instead of a paper surface, it's covered with fiberglass mesh with an acrylic finish.

Fiberglass boards have such a watertight barrier until even if water gets through the tiles, the interior of the board remains dry. 

You can use either Fiberglass or Cement backerboard as an underlayment for your wall tile installation in wet areas.  Fiberglass boards are installed in the same way as cement backerboard.

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