EFCO 8800 Installation Instructions - Manual (Page 17)

EFCO 2009 Page 17
Series 8700 / 8800 Unitized Curtain Wall Installation Instructions
Section 4 - Dynamic Starter Sill Preparation and Installation
WC16
1. Preparation of the Dynamic Starter Sill:
a. The Dynamic Gutter Base will be installed into the opening first. The Gutter Base may have an end dam pre-attached and sealed at the jamb
conditions. Ensure that the end dam is properly applied and sealed to the starter sill as shown below. This is a critical seal and the joint must be
carefully tooled to create a watertight seal.
b. Apply WC16 isolator gaskets into the reglets of the Gutter Base. The gaskets should be flush with each end of the gutter base, including mitered
ends at corner conditions. Do not stretch the gasket during installation.
c. Seal the ends of the WC16 isolator to the end dam.
Clean all sealant contact surfaces using an approved solvent or cleaner of all oils and other contaminants. The sealant manufacturer’s
preparation and application instructions should be followed exactly. If sealant primer is required, apply it per the primer/sealant
manufacturer’s instructions.
Figure 23 Figure 22
Silicone Sealant
End Dam - Attach
with (2) M153
M153
Tool sealant smooth
and into joints.
Dynamic Gutter Base
Pre-fabricated
oversized
anchoring slot