EFCO 8800 Installation Instructions - Manual (Page 23)

EFCO 2009 Page 23
Series 8700 / 8800 Unitized Curtain Wall Installation Instructions
25. Using an approved solvent or cleaner, clean the sealant contact surfaces of the splice and starter sill of all oils and other contaminants where the
splice will be applied. The sealant manufacturer’s preparation and application instructions should be followed exactly. If sealant primer is
required, apply it per the primer/sealant manufacturer’s instructions.
26. Apply bond breaker tape (WM79) to the center of the reveal splice. The bond breaker tape is to prevent three sided adhesion.
27. Apply sealant to the inside of the gutter where the reveal splice (FM09) will be inserted. Apply sealant to the splice as shown. See Figures 37and 39.
28. Insert FM09 splice into the first starter sill gutter and set the gutter onto the starter sill base aligning it with the WC16 isolator gaskets. See Figure 38.
29. Secure the gutter to the starter base with SPZ1 fasteners.
30. Slide the next section of starter sill gutter onto the starter sill base while inserting FM09 and threading WC19 gasket into the adjacent gasket reglet as shown.
Ensure the splice is centered on the joint and the required joint size is maintained. Refer to the approved shop drawings for the required joint size.
31. Slide apart the WC19 gaskets to create a gap between the two gaskets. Apply a small amount of sealant to the end of one of the gaskets. See Figure 39.
32. Butt the two WC19 gaskets back together tightly, and remove any excess sealant.
33. Secure the gutter to the starter base with SPZ1 fasteners.
Section 4 - Dynamic Starter Sill Preparation and Installation
Apply a generous amount of
sealant inside starter sill
and on splice as shown.
WM79 Bond
Breaker Tape
FM09 Dynamic
Starter Sill
Reveal Splice
WC19
WC16
Figure 39 Figure 38
Thread the WC19 gasket in
the starter sill. Then apply
sealant to the end to create
a butt seal between the two
WC19 gaskets.
Apply a generous amount of
sealant inside starter sill
and on splice as shown.
Figure 37
SPZ1
Starter Sill Gutter
Starter Sill Gutter
Starter Sill Base