EFCO S5500 SSG Captured - Manual (Page 27)

EFCO CORPORATION 6/2012 PART NO. Y556 Page 27 of 81
S-5500 SSG and Captured Corner Mullion Installation Instructions
Section V: Glazing Preparation (Captured)
STEP #1 SEAL JOINTS AT CORNER HEAD AND SILL AND AT CORNER MULLION
A. Seal between the mitered ends for the heads, sills, and the corner mullion to form a
water-tight joint as shown in the detail below. The sealant must not obstruct or
interfere with the areas of the head or sill where the cover will engage. Note that this is
a critical primary seal.
B. Before applying the corner mullion glazing adapter, apply two beads of sealant to the
corner mullion as shown below at each intersection of head, sill, and intermediate
horizontal. The corner mullion glazing adapter must be set immediately after this step
before the sealant begins to cure.
SILL AT CAPTURED CORNER
Seal between the mitered ends of the
sills and the corner mullion. Fill all
voids completely and tool smooth.
Apply two beads of sealant in the
reglets of the corner mullion where
the corner mullion glazing adapter
mates into the corner mullion.
Note: The corner mullion glazing adapter
must be set immediately after this step
before the sealant begins to cure.
Note: Skip to page 36 for
the next step required for
the SSG corner mullion
application.
CORNER
MULLIONS
CAPTURED
SILL