Installation Guide
5
Note: If the predrilled hole at the end was trimmed 
o when cutting the channel to length, drill a new 
one at the end of the cut piece.
F.  Paint all of the screw heads white to reduce 
  their visibility.
D. Install the side channels in the same manner 
  making sure they are plumb before attaching with 
screws.
Note: You may want to slide a glass block into the 
bottom channel at both corners to make sure the side 
channels are aligned with the bottom channel.
3. 
Preparation of Universal Mortar Spacers
A. Assemble the spacers for the series of block you 
  are installing. The spacers come in 
  two halves, snap the spacers 
  together to t the width of 
  the block.
E. Install the half top channel:
• Place the half channel in the 
  top of the opening making 
  sure it is aligned with the 
  side channels.
• Attach the channel to the 
  opening by inserting #6 x 1" 
  at head galvanized screws 
  through the predrilled holes 
  in the channel. Insert a 
  screw at each end of the 
 channel.
• On exterior windows, the 
  screwed in half channel 
  should always be the exterior
 side.
2E
3A










