EFCO 8800 Installation Instructions - Manual (Page 59)

EFCO 2009 Page 59
Series 8700 / 8800 Unitized Curtain Wall Installation Instructions
4. Insert a backer rod into the reveal on the end of the starter sill. Recess the backer rod into the cavity of the reveal at a minimum of 1/4”. Seal off the end of
cavity with sealant and marry it into the end dam sealant. See Figure 127.
5. Special care is needed to ensure that the end dam is properly sealed and marries into the perimeter sealant correctly at the jamb to sill condition. Place a
piece of backer rod between the end dam and the jamb. The backer rod will run from the front face of the end dam to the engagement leg. Run a bead
sealant between the end dam and the jamb. Tool the sealant to create a water tight seal between the end dam and the frame. See Figures 128 & 129.
6. Place backer rod and run perimeter sealant at the sill and jamb. See Figure 129. Ensure that the sealants all marry together to create a water tight seal.
Section 13 - Applying Typical Perimeter Seals
Note:
Jamb condition not
shown for clarity.
Insert a piece of backer rod
into the reveal cavity and
apply sealant to create a
watertight seal.
Tool sealant
between the jamb
and end dam.
Tool sealant so
that all lines of
sealant marry
together.
Figure 128
Figure 127
Figure 129