EFCO S5500 SSG - Manual (Page 6)

EFCO CORPORATION 6/2012 PART NO. Y554 6
Series 5500 Silicone Structural Glazed Curtain Wall Installation Instructions
Section II: Frame Unit Assembly & Frame Sealing
STEP #2 SEAL EXTERIOR REVEAL TUBES
A. Plug the ends of the exterior portion of the SSG heads and sills with backer rod. Recess
the backer rod at least 1/4” from each end of the reveal tube.
B. Apply a generous amount of sealant to cover the hollow portion of the tube as shown be-
low on each end. Apply sealant to each end of the horizontal as shown on page 7. The
sealant in both areas must be applied immediately before frame assembly.
C. After the frame is assembled, tool the sealant smooth on each end of the covers. Immedi-
ately clean excess sealant from the frame, or alternatively, after the sealant partially
cures, use a blade to cut the excess sealant flush with the surfaces of the covers. (See
page 8.)
SSG HEAD & SILL HORIZONTALS WITH
REVEAL AT SSG REVEAL JAMBS
Insert backer rod.
Apply sealant
on each end.
Note: Refer to the
tooling drawings
for the fabrication
requirements of
the horizontals.
REVEAL TUBE