EFCO S5900 Structural Glazed - Manual (Page 15)

EFCO CORPORATION 6/2012 PART NO. Y354 Page 15 of 23
Series 5900 Silicone Structural Glazed Curtain Wall Installation
Vertical Adaptor
Horizontal Adaptor
VII: Glazing Adaptors
Installation of Glazing Adaptors at Silicone Structural Glazed Mullions
A.) Vertical adaptor length without a
mullion expansion joint equal
D.L.O. plus 1”.
B.) Vertical adaptor length with a
mullion expansion joint, see the
“APPROVED” shop drawings.
C.) Horizontal adaptor length equal
D.L.O. minus 1/16”.
D.) Install the vertical
adaptors first, and attach
with #8 X 1 ¼” PLPH SMS
at a minimum of 18” on
center. (Seal fastener
heads with sealant.)
E.) Install the horizontal adaptors
between the vertical adaptors.
Installation of Glazing Adaptors at Captured Mullions
A.) Position the vertical adaptors as
shown.
B.) Place horizontal adaptors
between the verticals.
C.) Seat adaptors by applying sealant
to all four corners.
D.) Cut formula for vertical adaptors
equal D.L.O. plus 1”. Horizontal
adaptors equal D.L.O. minus
1/16”.
Set all adaptors in a continuous
bead of sealant, and seal all
vertical to horizontal adaptor
intersections.
Continuously seal the
gasket raceway with
sealant prior to
installing the adaptors.
Note: Vertical adaptors need a minimum
of 1/8” clearance above the
mullion plug, free from sealant.