EFCO S5500 SSG Captured - Manual (Page 66)

EFCO CORPORATION 6/2012 PART NO. Y556 Page 66 of 81
S-5500 SSG and Captured Corner Mullion Installation Instructions
Section IX: Vertical Splice Joints
Installation for Captured System
STEP #11 APPLY CAULKING TO EXTERIOR CORNER COVER JOINT (OPTIONAL)
A. The corner cover splice will be supplied with a finish to match the exterior
finish of the curtain wall. A caulk joint is not required at the cover splice
joint. As an option, the erecter may choose to apply sealant to the corner
cover splice joint. If caulking is used, ensure bond breaker tape is applied to
the splice at the sealant joint to prevent three-sided adhesion of the sealant.
Apply backer rod, where required, to support the joint as needed.
Apply optional sealant
at corner mullion cover
splice if desired.