11 frame assy – Oldcastle BuildingEnvelope Reliance-IG SS User Manual
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R E L I A N C E - I G S S I N S T A L L A T I O N M A N U A L
2.7 After units are assembled. Install mull caps to each end of vertical mullions and jambs. IW-325-01 mull
cap will be bed in sealant and attached to mullion with FS-320 drive screws. Sealant must be tooled
around inside of glazing pocket and on mating surfaces between mull cap, head/sill and verticals. SEE
FIGURE 9 . Note: SSG mullions will not use mull caps. Bridges will be field installed at SSG verticals as
noted on sheet 30.
2.8 Isolator clips for face cap installation may be installed in the shop or field. If installed in shop care must
be taken in transporting units not to break or disengage clips from mullion. Clips are installed by starting
one end and rotating into position. Clips will snap over clip stem. Clip tool, part # ICW-FP-74 may be
used to speed up installation process. GP-141 baffle clips must be installed over weep holes at all
intermediate horizontals. ICW-12 clips are to be installed at 12" on center and staggered to
prevent bowing of face cap at clips. SEE FIGURE 10, page 12.
.
IW-325 Mull Cap
IW-325 Mull Cap
Trim leg for jamb
at head and sill
Bed mull cap in
sealant and tool
sealant at mullion.
FS-320 "U" Drive
FIGURE 9
Mull Cap Installation
(SSG mullions do not use mull caps)
Cap seal all
fastener heads
FRAME ASSEMBLY