EFCO 8750XD - Manual (Page 38)

EFCO 2012 Page 38
Series 8750XD Unitized Curtain Wall Installation Instructions
1. The typical head, jamb and starter sill are as shown below. The caulk joint size is job specific, below a 1” caulk joint is shown at head and jambs and a 1/2”
caulk joint at the sill. All seals should join each other head and sill seals should join verticals.
2. The condition at the head is job specific. See Figure 91 for a typical generic head sealant detail. See shop drawings of job specific details.
3. The line of sealant at the jamb will follow the front edge of the back member. See Figure 92. Special care is needed to ensure that the end dam is properly
sealed and marries into the perimeter sealant correctly at the jamb to sill condition. See Figures 94.
4. At jamb conditions of the unit stack joint, a splice sheet has been applied. Special care is needed to ensure the splice sheet is properly sealed and marries
into the perimeter sealant correctly. See Figure 95.
5. The caulk joint at the starter sill is located at the exterior part of the starter sill and must return at the jambs to marry with the perimeter caulking of the jambs.
Section 13 - Applying Typical Perimeter Seals
Figure 91 Figure 92
Figure 93
Figure 94 Figure 95
Backer Rod and
Perimeter Seal
Backer Rod and
Perimeter Seal
Backer Rod and
Perimeter Seal
Marry jamb
sealant line to
sill sealant line.
Marry jamb sealant
line with splice
sheet sealant
Note:
Jamb condition not
shown for clarity.
Note:
Jamb condition not
shown for clarity.