EFCO 433 Series - Manual (Page 78)

June 2012 PART NO. Y017 Page 78 of 90
Series 433 Triple Set Installation Instructions
SECTION IX: Glazing
(Includes Offset and Center-Set Glazing)
Step 4) Installing Glass Blocks
HN32 HN92
OUTSIDE SET, INSIDE GLAZED
SHOWN. OTHERS ARE SIMILAR
TYP. SILL TYP. HORIZ.
[FIG. 98]
[FIG. 99]
D.L.O. / 4
D.L.O. / 4 D.L.O. / 8
D.L.O. / 8
1/4 POINT
BLOCKING
1/8 POINT
BLOCKING
4 ½” SILLS &
HORIZONTALS
SIMILAR
[FIG. 99]
[FIG. 100]
Glass blocks for the 433 system are designed to be used at 1/4 points and 1/8 points
for special dead load applications. For intermediate horizontals, use glass block HN92.
For sills, use glass block HN32. It may be necessary to use a small amount of sealant
on the bottom of the glass blocks to ensure they remain in the intended position. Refer
to Figure 100 below for 1/4 point and 1/8 point verification.