High-Rise & Seismic-Zone Facade Fenestration

Upper elevations of a tower carry two structural demands that a single rigid frame cannot resolve on its own: design wind pressure that rises with height, and inter-storey drift during a seismic event or under wind-induced sway. A system specified for a low-rise building usually passes the pressure check and still fails at the glass edge, because a rigidly tied frame transfers storey movement straight into the glazing. This package addresses both conditions together, combining drift-tolerant mullion connections, pressure-equalised drainage and sections sized to a deflection limit rather than to a nominal span. Every performance figure is fixed per project from the structural engineer's wind and drift calculation, since a tower in a low-seismicity region does not need the movement allowance required on an active fault line. Shop drawings are issued with the mullion calculation, the drainage path and the perimeter joint detail so the site team can install to the assumed tolerance.