Dynamic, fire-resistance-rated thermally insulating and sealing system for use with curtain wall structures

An approved dynamic construction is used for effectively thermally insulating and sealing of a safing slot between a floor of a building and an exterior wall construction. The exterior wall construction includes a curtain wall configuration defined by an interior wall glass surface including one or more aluminum framing members, where the vision glass extends to the finished floor level below. The dynamic, thermally insulating and sealing system includes a first element for receiving the insulating elements, and is positioned in the zero spandrel area of a glass curtain wall construction including only vision glass, to maintain thermally insulating and sealing of the safing slot during exposure to fire and heat as well as movement in order to maintain a complete seal extending across the safing slot.