EFCO S5500 SSG - Manual (Page 29)

EFCO CORPORATION 6/2012 PART NO. Y554
Series 5500 Silicone Structural Glazed Curtain Wall Installation Instructions
Section IV: Glazing Preparation
STEP #1 PREPARE FRAME FOR JOINT PLUGS
In some instances, projects will require captured and SSG mullions used in combination
within the same elevation. Use the following steps as a guide in these situations.
A. Fill the gasket and adapter raceways with sealant to close off the void at the joint
plug locations. The sealant height should be a minimum of 1” long.
B. Seal all connecting surfaces of the horizontal and vertical mullions with sealant
for the application of the mullion joint plugs. Tool sealant into the joints at the
thermal strut.
Fill gasket and adapter
raceways with sealant.
Apply sealant to mullion
surfaces that will contact
joint plugs.
OPTIONAL CAPTURED VERTICAL AND
CAPTURED HORIZONTALS
Seal the ends of the front
part of the horizontals to
the vertical mullion.
Seal the ends of the front
part of the horizontals to
the vertical mullion.