EFCO 8750XD - Manual (Page 39)

EFCO 2012 Page 39
Series 8750XD Unitized Curtain Wall Installation Instructions
1. The captured system units can be structural silicone glazed to the frame or may be dry glazed. The deglaze and re-glaze of the dry glazed system should be
very straight forward and will be similar to the captured structural silicone glazing instructions below; minus the structural and sealant and using WSD2
interior gasket in place if WC18 spacer. The deglaze and re-glaze procedure must be performed from a swing stage or man lift from the exterior of the
building. Follow the sealant manufacture’s sealant application instruction for deglazing and re-glazing. When deglazing an opening or openings at a
captured unit, follow these instructions:
a. Remove the wedge gaskets from the perimeter of the day-lite opening of the lite to be deglazed.
b. Remove the glazing beads, setting blocks, and side blocks from around the opening.
c. Using tools, such as automotive deglazing tools, cut though the glazing sealant removing glazing, old gasket and sealant from the opening. Some
areas may be accessible from the interior.
d. Cut away the sealant from the substrate, leaving a thin film (approximately 1/32” thick) of sealant on the frame. Do not damage the surface finish of
the substrate. Alternatively, if the remaining sealant exhibits adhesive failure, completely remove all sealant, but take care not to damage the
substrate finish.
e. Remove all remaining gasket pieces or sealant residue from inside the gasket reglets.
Section 14 - Deglaze / Re-glaze Procedures - Captured System
Remove gaskets
and glazing beads
from the opening of
lite to be deglazed.
Note:
It may be necessary to remove
gasket and or bead from lites
above or below the deglazing area.
Figure 96
Cut completely
through the sealant
joint and remove the
sealant and gaskets.
Remove gaskets and glazing
beads from the opening of
lite to be deglazed.
Cut completely
through the sealant
joint and remove the
sealant and gaskets.
Remove setting
and side blocks
from the opening of
lite to be deglazed.
Figure 97