EFCO 8800 Series Assembly Instructions Vol.5 - Manual (Page 64)

EFCO 2009 Page 64
Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 5
Section 28 - Assembly and Glazing - Captured Vent at Fixed Horizontal
Figure 145
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 145 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 head sash members. Ensure the gaskets are applied as shown in Figures 146 and 147 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 sill and WS10 at the head running in between. Cut the gasket long, so it can be
trimmed flush with the horizontal gaskets, as shown in Figures 148 and 149. Notch the gasket dart on each end of WS10 to clear the miter at the corners of the frame.
10. Apply the WC18 offset spacer gasket to the sill sash member. The horizontal gaskets run between the WS10 gaskets at the vertical sash members.
WS10 Offset
SSG Spacer
WS10 Offset
SSG Spacer
WS10 Offset
SSG Spacer
WC18 Offset
SSG Spacer
HEAD
SILL
Figure 147
WS10 Offset
SSG Spacer
Apply flush
with sash.
Head Sash 1H66
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 146
Sill Sash 1H68
WC18 Offset
SSG Spacer
Apply flush
with sash.
WS10 Offset
SSG Spacer
Figure 148-Head
WC18 Offset
SSG Spacer
WS10 Offset
SSG Spacer
Figure 149-Sill
WS10 Offset
SSG Spacer
WS10 Offset
SSG Spacer