EFCO 8800 Series Assembly Instructions Vol.6 - Manual (Page 13)

EFCO 2009 Page 13
Series 8700 / 8800 Unitized Curtain Wall Assembly Instructions - Volume 6
Section 36 - Back Panel Installation
6. Using an approved solvent or cleaner, clean the surfaces to receive sealant of all oils and other contaminants.
7. The back panel has a raised lip that runs around the four sides of the panel. Apply sealant between this lip and the side of the mullion as shown below, filling
the void thoroughly. See Figure 28.
8. Tool the sealant into the joint smoothly, around all four sides continuously. See Figures 27 and 28.
9. Seal the corners of the back panel thoroughly with sealant. See Figure 27.
Figure 26
Seal the four
corners of the
back panel.
Galvanized Steel
Back Panel
Cap seal all
fastener heads.
Seal continuously
with silicone sealant.
Seal continuously
with silicone sealant.
Cap seal all
fastener heads.
Galvanized Steel
Back Panel
Cap seal all
fastener heads.
Seal continuously on (4)
sides with silicone sealant.
Figure 27
Figure 28
Seal the four corners
of the back panel.