Installation Guide
19
4. Install The First Row
Note: If your project is framed on 3 or 4 sides, complete 
Steps A thru K. If your project is framed on 2 sides, skip 
to Step L.
A. Using a trowel apply 
approximately a 1/2" 
mortar bed to 
the treated 
curb or 
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an “L” spacer at the lower outside corner of the 
block so that the spacer cross arm will be at the 
bottom, between the glass block and the curb.
C. Place a “T” spacer at the other lower corner of the 
block with the spacer cross arm up.
D. Slip a 16" long piece of trimmed expansion 
strip between the block and jamb, and push 
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E. Slip a “T” spacer between 
the block and jamb so that 
the cross arm is on top of 
the block.
4A
4B
4C
4D
4E










