EFCO 8800 Series Assembly Instructions Vol.5 - Manual (Page 19)

EFCO 2009 Page 19
Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 5
Section 21 - Unit Glazing Preparation - Vent at Stack Sill
Figure 23
1. Using an approved solvent or cleaner, clean the surfaces of the mullions to receive the WC18 spacer gasket and sealant of all oils and other
contaminants. The sealant manufacturer’s preparation and application instructions should be followed exactly.
2. If sealant primer is required, apply it per the primer/sealant manufacturer’s instructions. See Figures 24 - 26 of page 20 for more detail.
3. Refer to Volume 2, page 6 of the S-8000 Unitized Curtain Wall Assembly Instructions for more information.
Apply WC18 spacer
gasket to the mullions.
Concealed Vent
opening
HEAD
SILL