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Fine Homebuilding Project Guides

Tiling

Guide Home
Chapter
  • Selecting Tile
  • Tools & Techniques
  • Installation Materials
  • Preparation
  • Tiling Floors
  • Tiling Walls & Backsplashes
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  • Maintenance & Repair
How-To

Tiling a Glass Mosaic Backsplash

Be sure to prep the wall with an antifracture membrane before spreading the thinset and setting the glass tile.

By Robin Nicholas, Michael Schweit

Glass tile backsplashes require a slightly different procedure than is used for setting other kinds of tile. First, it’s essential to install an antifracture membrane underneath the glass tile because glass expands and contracts more than stone or ceramic tile. Without the membrane, a glass tile installation can fail, leaving you with cracked tiles that need replacing.

Learn more about Antifracture Membranes

Spread the thinset on with a 3/16-in. V-notched trowel on an area that can be set in 15 minutes (about 2 sq. ft. to 4 sq. ft.). Apply the thinset with the flat side of the trowel, to key it in 1. Then comb the thinset with the notched side of the trowel, working in one direction and striving for an even surface 2. It’s very important to apply a thin layer of the thinset that’s just enough to bond the tile to the wall. A too-thick layer causes shrinkage that can actually crack tiles as the thinset dries. Now go over the thinset with the flat side of the trowel, to flatten out the ridges and create a smooth, even surface 3. Any ridges from the notched trowel, debris, or patterns left in the thinset may show through the glass tile.

Carefully press the mesh-backed sheets of tile into the thinset 4. After several sheets are in place, use a beater block and mallet to embed the tile into the thinset and smooth out the tile surface 5. You can easily cut any sheet of tile into smaller pieces to fill in areas that are less than a full sheet. Use a sharp razor knife as the netting can be tough to cut 6.

Glass tiles do not generally come with trim shapes, although a few manufacturers are starting to make them. For a finished look to your glass backsplash, lay full tiles right up to the ends of the splash. Later, apply a fine line of grout along the edge to finish it off cleanly 7.

Spread thinset over the wall that’s been prepared with an antifracture membrane. 1.  Spread thinset over the wall that’s been prepared with an antifracture membrane.
Comb the thinset to even it out, gauging its depth with a V-notched trowel. Keep your trowel lines straight and parallel. 2.  Comb the thinset to even it out, gauging its depth with a V-notched trowel. Keep your trowel lines straight and parallel.
To prevent trowel ridges from showing through the glass tile, smooth ridges out with the flat side of your trowel. 3.  To prevent trowel ridges from showing through the glass tile, smooth ridges out with the flat side of your trowel.
Apply sheets of the glass mosaic tile to the thinset, carefully pressing them in place. 4.  Apply sheets of the glass mosaic tile to the thinset, carefully pressing them in place.
Strike your beater block gently and evenly to embed the mosaic tiles in place. 5.  Strike your beater block gently and evenly to embed the mosaic tiles in place.
When you need a strip of mosaic tiles smaller than a full sheet, use a razor knife to cut through the net backing. 6.  When you need a strip of mosaic tiles smaller than a full sheet, use a razor knife to cut through the net backing.
Grouting the edge of a glass mosaic tile backsplash provides a clean finished edge. 7.  Grouting the edge of a glass mosaic tile backsplash provides a clean finished edge.

Tiling Complete, 2nd EditionExcerpted from Tiling Complete, 2nd Edition by Robin Nicholas and Michael Schweit.

Available in the Taunton Store and at Amazon.com.

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Previous: Tiling a Backsplash with Decorative Tile Inserts Next: Tile Backsplash Layout

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Selecting Tile
  • The Basics
  • Tile Options
Tools & Techniques
  • Job-Preparation Tools
  • Cutting Tiles
  • Setting & Grouting Tools
Installation Materials
  • Membranes & Substrates
  • Adhesives & Mortars
  • Grout
  • Sealers & Caulk
  • Spacers, Hardware & Trim
Preparation
  • The Prep Job
  • Repairs & Surface Prep
  • Installing Backerboard
Tiling Floors
  • Layout & Installation
  • Setting Specialty Tiles
Tiling Walls & Backsplashes
  • Preparation
  • Backsplashes
  • Walls
Tiling Showers
  • Tile Shower Basics
  • Waterproofing
  • Shower Pans
  • Shower Drains
  • Shower Niches
  • Video Series: Tile a Shower
  • Video Series: Tile a Barrier-Free Bathroom
Grouting, Sealing & Caulking
  • Grouting
  • Caulking
  • Sealing
Maintenance & Repair
  • Maintenance
  • Tile Repair
  • Grout Repair

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