EFCO S5500 Advanced - Manual (Page 26)

EFCO CORPORATION 6/2012 PART NO. Y557 26
Series 5500 Advanced & Alternate Installation Instructions
Section V: Vertical Splice Joints
STEP #2 ATTACH MULLION SPLICE SLEEVES
A. Clean all surfaces that will contact sealant per the sealant manufacturer’s instructions,
making sure to remove all oils and debris from contact surfaces.
B. Apply bond breaker tape to the mullion splice sleeve.
C. For standard installation, attach the mullion splice sleeve to the top of the lower mullion
with splice sleeve attachment screws. Cap seal the fastener heads.
MULLION SPLICE SLEEVE
BOND BREAKER TAPE
SPLICE STOP SCREW
(When required) See
STEP 1, item B, , page 24.
SPLICE ATTACHMENT
SCREWS (cap seal)
LOWER MULLION
1/4” X 1” X 5”
FOAM CAULK
JOINT BACKER