EFCO S5600 Outside Glazed - Manual (Page 22)

EFCO CORPORATION 7/2012 PART NO. Y302 Page 22 of 26
Series 5600 Outside Glazed Installation Instructions
Section XIII: Vertical Splice Joints
Step #1 Locate Splice Joints
A.) Splice joints should occur at the spandrel areas (if possible). Refer to approved final
shop drawings for actual locations.
B.) Depending on the specific job requirements, splice sleeves may be shop or field
assembled in the top of the lower mullion. If materials are field fabricated, use the
following assembly instructions. Where head clearance is sufficient to allow the top
mullion to be lifted over the splice sleeve, a retractable sleeve will be used. The
sleeve must be taped into the bottom of the top mullion and dropped down to the
stop screw in the mullion below.
C.) GENERAL NOTE: The following page depicts a splice joint of ½”. The required joint
width must be determined in the design stage and shown on the approved Final
shop drawings, on a job-by-job basis. Keep in mind that a typical curtain wall can
accommodate ¼” total vertical movement. The splice joint, horizontal glazing
pocket immediately above the splice, and slotted wind load anchors, must all be
considered when vertical movement exceeds ¼”.
D.) Refer to this section for cover splice, pressure plate splice relative locations, and
sealing instructions.
E.) Once a final check of expansion joint placement and mullion position is made, the
final match drilling of mullion through anchor holes may be completed.
Plan View – Mullion Splice
Splice Sleeve
Stop Screw
Mu
lli
on
L
en
gth
Cover Le
ngth
4”
2”
As
Req’d
1”
1/2 ”
Pressure P
late
3”
Mi
n.
Field install backer rod
at the pressure plate
joint to back-up sealant.
Mullion splice sleeve
with bond breaker tape.
Side View – Mullion Splice
1” Minimum
Pressure
Plate Screw
M
ulli
on Le
ngt
h
Pressure P
late Le
ngth
Cover Le
ngth
As
Req’d
2”
4”
2”
See page 20 for multiple isometric
views of splice assembly.