Glass blocks come in a huge variety of sizes, styles and colors. You’re sure to find the right glass block for your location. Whether your installing glass block in an interior wall, partition or exterior window opening, glass block is easy to use and provides just the right amount of light through without compromising on privacy.
Glass block can be installed in several different ways. For this tutorial, I’ll give you the easy way of installation.
When you purchase the glass block, buy a plastic track that fits the block. This track will provide you with an easy alternative to using mortar and thinset. You simply need to attach it in place using galvanized screws and some silicone to fill in the seams between the glass block and hold it in place permanently. Don’t forget the horizontal and vertical spacers.
First of all, the opening needs to be uniform for the glass block. In other words if your using four inch block, you’ll need to space your opening by four inch increments. Frame in your rough opening accordingly.
Now measure and install the plastic glass block track. Cut the bottom piece first and install. Now cut the two side pieces and install those using galvanized wood screws or Tapcons as needed about every six inches. Cut the last track but set it aside for now.
Next, add in the first glass block. Put the wall spacer and vertical spacers in place, making certain they are snug and fit well. Finish up the horizontal row, then measure, cut and top the glass block with the horizontal spacer.
Continue in this manner until you reach the last row of block. Using some silicone caulk, apply a bead to the backside of the horizontal track. Now set the glass block in place with the track attached to the top. Gently slide it in place with the tracks all fitting snuggly. This part is easier said than done. You may need to cut the track in half or thirds to get a proper fit.
The final step is to seal all of the seams with silicone. Use a plastic rounded putty knife to get a good finished bead. Water soluble silicone can be wiped clean with a wet rag. And that’s it! Your glass block is ready to use once the silicone dries for 24 hours!