EFCO 8800 Series Assembly Instructions Vol.1 - Manual (Page 29)

EFCO 2009 Page 29
Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 1
10. Apply the “Z” clip caulk backer to the bottom end of all vertical mullions.
11. Thoroughly clean the surfaces of the “Z” clip and mullion that will contact sealant.
12. Apply a bead of sealant to the mullion as shown in Figure 11.
13. Apply a bed of sealant to the “Z” clip on the face of the 1 1/2” long leg as shown in Figure 12.
14. Apply the “Z” clip to the vertical, pressing it into the sealant on the mullion. The “Z” clip must align with the edges of the notch in the mullion as shown in
Figure 15.
Figure 10 Figure 11
Figure 12 Figure 13
Section 3 - Unit Frame Assembly : A. Mullion Subassembly
Clean the bottom of the
vertical mullion with
cleaner. Apply a bead of
sealant to the
mullion.
Apply a bed of
sealant to the
“Z” clip.
Apply the “Z” clip
to the vertical.