EFCO S5500 Outside Glazed - Manual (Page 22)

EFCO CORPORATION 6/2012 PART NO. Y550
Series 5500 Outside Glazed Installation Instructions
Section IV: Glazing Preparation
STEP #1 PREPARE FRAME FOR JOINT PLUGS
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
attachment of the mullion joint plugs. Tool sealant into the joints at the thermal strut.
Apply sealant to mullion
surfaces that will contact
joint plugs.
Seal the ends of the front
part of the horizontals to
the vertical mullion.
Fill gasket and adapter
raceways with sealant.