EFCO 8800 Series Assembly Instructions Vol.6 - Manual (Page 9)

EFCO 2009 Page 9
Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 6
Figure 14
Section 34 - Shadow Box Installation
6. Clean the shadow box frame and mullion surfaces that will contact sealant with an approved solvent or cleaner.
7. Cap seal the tip of the fastener where it penetrates the vertical mullions with silicone sealant as shown below. Tool the sealant over the end of the fastener
and smooth it onto the mullion.
8. Apply backer rod and fill the void between the shadow box frame and the mullion with silicone sealant. The seal must be continuous and uninterrupted
around all four sides of the shadow box frame.
9. Tool the sealant into the joint, smoothing it around the four sides of the opening as shown below.
Figure 15 Figure 16
Apply sealant into
attachment holes in the
shadow box frame filling
the space around where
the fastener will pass
Apply backer rod and fill the
void between the shadow
box frame and the mullion
with silicone sealant.
Apply backer rod and
sealant and tool the
sealant into the joint.
Apply backer rod and
sealant and tool the
sealant into the joint.
Cap seal fastener
penetrations with
silicone sealant.
1/16”
Vertical Mullion
Horizontal
Mullion
Shadow
Box Panel