Installation Guide

14
1.Prepare The Rough Opening
Note: For those glass block applications that begin at
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as wide as the glass block being used. This will help
protect the bottom row of glass block from damage
(vacuum cleaners, mops, etc.).
Mortar II System
The tools required for the Mortar II glass block
installation system are a margin trowel, mortar pan,
2 polyfoam brushes, sponge, tin snips, screwdriver
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tape measure, 3/8" to 1/2" striking tool, 2' level and
rubber mallet.
A. Make sure the opening is the correct size. To
determine the correct size of the rough opening,
add 1/2" to the sum of the nominal block sizes for
both the height and width.
Example: Panel (using 8" x 8" block) is fourteen block
wide (8 x 14 + 1/2" = 112-1/2") and ten block high (8 x
10 + 1/2" = 80-1/2"). Rough opening needs to be
112-1/2" wide and 80-1/2" high.
1A