EFCO 8800 Series Assembly Instructions Vol.5 - Manual (Page 59)

EFCO 2009 Page 59
Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 5
Section 27 - Assembly and Glazing - SSG Vent at Stack Sill
Figure 121
6. Using an approved solvent or cleaner, clean the surfaces of the sash to receive the WC18, WS10 spacer gaskets and sealant of all oils and other
contaminants. The sealant manufacturer’s preparation and application instructions should be followed exactly.
7. If sealant primer is required, apply it per the primer/sealant manufacturer’s instructions. See the note in Figure 121 below.
8. Frames must be true and square before being structurally glazed. Improperly squared units will cause significant problems during vent operation. Check the frame
for squareness by comparing the difference between the two diagonal measurements of the frame by measuring from corner to opposing corner for the two diagonal
dimensions. The vent frame must be absolutely square for glazing.
9. Apply WS10 offset spacer gaskets to the vertical and sill sash members. Ensure the gaskets are applied as shown in Figures 122 and 123 and are flush with the side of
the sash at the D.L.O. WS10 runs through vertically at the corners, with the WC18 at the head and WS10 at the sill running in between. Cut the gasket long, so it can be
trimmed flush with the WC18 gaskets, as shown in Figures 124 and 125. Notch the gasket dart on each end of WS10 to clear the miter at the corners of the frame.
10. Apply WC18 offset spacer gasket to the head sash member. The horizontal gaskets run between the WS10 gaskets at the vertical sash members.
WS10 Offset
SSG Spacer
WS10 Offset
SSG Spacer
WC18 Offset
SSG Spacer
WS10 Offset
SSG Spacer
HEAD
SILL
Figure 123
Figure 124-Head
WC18 Offset
SSG Spacer
WS10 Offset
SSG Spacer
WS10 Offset
SSG Spacer
WC18 Offset
SSG Spacer
Apply flush
with sash.
Head Sash 1H67
Jamb Sash
1H66
Note: After cleaning and priming the glazing substrates (priming when required), the
glazing must be set and the structural silicone applied immediately. The time between
cleaning, priming, and applying the structural silicone should be less than two hours.
Otherwise, the substrates may become contaminated, and the primer will oxidize. If
units have been prepared for glazing at the end of the day, and sealant has not yet been
applied, cleaning and priming must be redone prior to glazing the next day.
Figure 122
Apply flush
with sash.
Sill Sash 1H69
WS10 Offset
SSG Spacer
WS10 Offset
SSG Spacer
WS10 Offset
SSG Spacer
Figure 125-Sill