Patent ID: 8683763

Claim:
A fire containment system for use in a building having an exterior wall system, the exterior wall system having a spandrel, the exterior wall system positioned a distance from a slab, wherein the distance between the spandrel and the slab defines a gap therebetween, the fire containment system comprising: a portion of main spandrel insulation positioned within the gap defined between the spandrel and the slab; a portion of compressed safing insulation positioned within the gap between said portion of main spandrel insulation and the slab, said portion of compressed safing insulation forming a spandrel junction with said portion of main spandrel insulation and a slab junction with the slab, said portion of compressed safing insulation having an upper surface and a lower surface; and a first, additional portion of spandrel insulation positioned adjacent to and abutting said portion of main spandrel insulation, said first, additional portion of spandrel insulation positioned adjacent to and abutting one of said upper surface and said lower surface of said portion of compressed safing insulation, said first, additional portion of spandrel insulation fixedly secured to said portion of main spandrel insulation, wherein movement of said portion of main spandrel insulation results in corresponding movement of said first, additional portion of spandrel insulation, and wherein movement of said portion of main spandrel insulation in a direction away from the slab creates a space at said spandrel junction and said first, additional portion of spandrel insulation restricts the passage of smoke, hot gasses, and fire through the space created at said spandrel junction.