EFCO 433 Series - Manual (Page 56)

June 2012 PART NO. Y017 Page 56 of 90
Series 433 Triple Set Installation Instructions
SECTION VI: Subsill Fabrication and Installation
(Includes Offset and Center-Set Glazing)
Step 9) Subsill Anchor Seal
The subsill anchors must be sealed with a silicone type sealant. To ensure a good seal,
tool the sealant onto the fastener and surrounding metal. If HD anchors are used,
ensure that the anchor angle and fasteners are sealed also. This procedure should be
followed immediately after anchor installation so it is not forgotten.
Step 10) Subsill Perimeter Seal
The subsill interior should be sealed with a silicone type sealant. Apply sealant and tool
the sealant to ensure a good seal. Clean off all excess sealant. At this time, use a
silicone type sealant to seal the thermal break area as shown in Figure 20. Tool the
sealants into the thermal break area, and ensure that sealant is smooth and flat with
the subsill surface. This procedure should be done prior to installation of the framing
system so it is not forgotten.
SUBSILL
4471
SILICONE TYPE SEALANT
SUBSILL
2S44
[FIG. 19]
SUBSILL
4471
SILICONE
TYPE
SEALANT
SILICONE
TYPE
SEALANT
SUBSILL
2S44
[FIG. 20]
SILICONE
TYPE
SEALANT
SILICONE
TYPE
SEALANT