EFCO 8800 Series Assembly Instructions Vol.2 - Manual (Page 13)

EFCO 2009 Page 13
Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 2
7. Clean the sealant contact surfaces of the mullion with an approved solvent or cleaner and apply a heavy bead of sealant to the tops of the vertical
mullions as shown in Figure 23.
8. Clean the sealant contact surfaces of the gutter with an approved solvent or cleaner. Apply sealant to the underside of the gutter where it will contact
the ends of the vertical with a bed of sealant. This will ensure that all voids are filled and good sealant contact is achieved once the gutter is applied to the
frame. Install the SSG gutter to the frame at the head horizontal and secure with SPZ1. See Figure 24. It is critical that the sealants applied to the
gutter and mullion are thoroughly tooled and blended together to make watertight. See Figure 25.
9. Slide in WC19 gasket and LC23 spacer into the gutter. LC23 spacer runs continuously and is flush with the ends of the gutter. WC19 runs continuously, and
is cut 3” longer than the gutter (1 1/2” on each end). See figure 26.
Section 5 - SSG Unit Glazing: C. Adapter Installation
Figure 23
Figure 24
Figure 25
Figure 26
Slide in LC23 Horizontal
Stack Joint Spacer Gasket.
Slide in WC19 Horizontal
Stack Joint Seal Gasket.
SPZ1
SPZ1
SSG Gutter
SPZ1
Note! Critical seal!
The sealant must be
thoroughly tooled and
blended over the adjacent
surfaces all around the
sealant contact areas
shown in Figure 23. This
seal occurs at the top of
each vertical mullion.
Apply a heavy
bead of sealant to
the tops of the
verticals.
17B6 SSG Horizontal
Stack Gutter