YWW 45 TU High Performance, Thermally Broken Window Wall System WINDOW WALL SYSTEM Product Description The YWW 45 TU 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 may be glazed from either the interior of the building for labor savings or from the exterior at column line applications. The system is thermally broken by YKK AP's patented ThermaBond Plus® poured and de-bridged technology. It 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 SSG Intermediate Vertical n Optional Strap & Roll-Over Anchors available for Precast Conditions