YWW 45 FI High Performance Window Wall System WINDOW WALL SYSTEM Product Description The YWW 45 FI is designed specifically to meet the performance requirements of window walls for multi-story buildings. Glass is set to the front of the system to maximize thermal performance and maybe glazed from either the interior of the building for labor savings or from the exterior at column line applications. The YWW 45 FI may be installed with head and sill members running continuously or with the head and sill members cut in between the vertical members. Sill flashing is only required when the head and sill members are cut in between the verticals. Product Options & Features n Perimeter Members: 2" x 4-1/2" n Intermediate Members: 2-1/4" x 4-1/2" n Screw Spline or Shear Block Construction n Optional Structural Silicone Glazed Intermediate Vertical n Optional Strap & Roll-Over Anchors Available for Precast Conditions