EFCO S5500 Advanced - Manual (Page 29)

EFCO CORPORATION 6/2012 PART NO. Y557 29
Series 5500 Advanced & Alternate Installation Instructions
Section V: Vertical Splice Joints
STEP #5 ALIGN AND STACK ASSEMBLED FRAMES
A. Align the pre-assembled frames and stack together at the splice joints.
B. Ensure the 1/4” x 1” x 5” long foam caulk joint backer is inserted into the gap
between the thermal struts in the upper mullion as noted below.
C. Position the mullions to the appropriate elevation with regard to established
benchmarks, and shim or fix the mullions at their respective dead load anchor
points.
D. Snap-in both of the adjacent frames before sealing the mullion splice joints.
E. Clean the splice sealant-contact areas per sealant manufacturer’s
recommendations.
F. Apply backer rod between the mullions, adapters, and splice to back-up the joint,
seal the joint and tool as shown on page 30.
UPPER FRAME
ASSEMBLY
LOWER FRAME
ASSEMBLY
MULLION
SPLICE SLEEVES
ADJACENT FRAME
ASSEMBLIES
Insert foam caulk
joint backer between
thermal struts.