EFCO S5500 SSG Captured - Manual (Page 35)

EFCO CORPORATION 6/2012 PART NO. Y556 Page 35 of 81
S-5500 SSG and Captured Corner Mullion Installation Instructions
Section VI: Glazing Preparation (SSG)
SILL AT SSG CORNER
Note: The corner mullion glazing adapter
must be set immediately after this step
before the sealant begins to cure.
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.
STEP #1 SEAL JOINTS AT CORNER HEAD AND SILL AND AT CORNER MULLION
A. Seal between the mitered ends of 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 the head, sill, and intermediate
horizontal. The corner mullion glazing adapter must be set immediately after this step
before the sealant begins to cure.
CORNER
MULLIONS
SSG SILL
SSG SILL