EFCO 403X Series - Manual (Page 26)

Series 403X Storefront Installation Instructions
EFCO 2013 Page 26
Section 5C. Glazing
Glass Installation Steps
1. Glass Blocks - Place glass blocks at the standard 1/4 point locations. It may be necessary to place a small amount
of sealant on the bottom of the glass blocks to ensure they remain in their intended position. Refer to approved shop
drawings or consult project design professional to verify glass block locations.
2. Glazing
Gasket - For inside glazed applications, install the exterior gasket prior to glass installation. For outside
glazed applications, install the interior gasket prior to glass installation.
Gasket Length = D.L.O. + 1/2%
Glazing Gasket Installation Steps
 Seal 1” vertically and horizontally in the gasket races with silicone type sealant at all corners.
 Install gasket by pushing the gasket into place at the ends. Move to the middle, then to 1/4 points and then
work the “waves” toward the ends. Do Not stretch the gasket or it will return to its original form, creating
gaps at the gasket intersections.
 Vertical gasket runs thru and horizontal between. Seal the ends of the horizontal gaskets.
 Clean off any excess sealant. Sealing races and gasket ends is required at the interior of the system
however, optional at exterior of the system.
 See Fig. #32 below.
Fig. #32
Sealant Typical
Sill
Head
Vertical
Jamb
Note:
Vertical and jamb gaskets
installed first and run thru.
Horizontal pieces run
between.