Installation Guide
•
So that the last row of Pittsburgh Corning Glass Block units
can be installed easily, cut the top perimeter channel in half
lengthwise with a utility knife. Apply one bead of sealant.
Install that half of the channel at the top of opening (Illus. B).
On exterior applications, secure the exterior-side half of the
channel with screws. The interior half of the channel will be
sealed in place.
Q
HEAD CHANNEL
CUT LENGTHWISE
AND PLACED AT HEAD
5. Cut Thinline
™
Track
Spacers to Length
• Cut the Thinline
™
Track Spacers for each course to fit
inside the vertical perimeter channels. Save the short pieces.
• For 8” block, the spacer is already scored at 7
3
/
8
” intervals
for cutting the vertical spacers. Vertical spacers for use with
4” or 6” block, should be cut at 3
3
/
8
” or 5
3
/
8
” respectfully.
6. Assemble the Panel
•
Follow the instructions on the glass block sealant tube to open
the tube. Coverage rate is one tube per twenty (20) blocks
(adhere horizontal joints only). Cut the tip of the tube on a
45° angle at the
1
/
4
” mark. The sealant skins over in 15-17
minutes. Do not apply sealant to more glass blocks than can
be installed in 17 minutes.
•
Apply beads of sealant on the interior corners of the sill channel
the full length (Illus. C). Slide one block into the right jamb, and
one into the left jamb (Illus. D). Install the remaining blocks in
this row. As you install multiple rows, make sure to apply beads
of sealant on the interior corners of the vertical side channels.
• Install vertical spacers between each of the glass blocks, you
may need the rubber mallet to tap the last vertical spacer
into position (Illus. E). Inspect each joint for alignment of
the spacers. Align this row of blocks between both jambs,
you may need to tap a wedge into the right or left jamb to
center the row (remove the wedge). See Illus. F.
• Apply a
1
/
4
” bead of sealant on across the row of blocks
behind the raised edge of the glass block face on both sides
of the blocks (Illus. G).
Q
Q
SEALANT
D
C
A
PERIMETER
CHANNELS
Q
Q
B