Exterior Fire Stop Hybrid Wall Panel

Abstract

A hybrid framed curtain wall panel is used to prevent inter-floor fire propagation from both the interior and exterior, featuring the combined use of three different infill materials for three different functions. The first infill is a continuous exterior fire-resistant thin pane for providing an aesthetic element and for preventing exterior inter-floor fire propagation. The second infill is a small band of fire-resistant material, such as mineral wool panel infill, located at the slab edge for preventing interior inter-floor fire propagation. The third infill is a structural infill, such as composite foam panel infill, to provide a light-weight material with excellent thermal insulation value.

We claim: 
     
         1 . A hybrid framed curtain wall panel comprising:
 a. a continuous fire-resistant exterior infill,   b. a first interior infill comprising a band of fire-resistant infill, the first interior infill being located for placement at the edge of a floor slab; and   c. a second interior infill comprising a structural infill.   
     
     
         2 . The hybrid framed curtain wall panel of  claim 1 , wherein the fire-resistant exterior infill comprises a continuous fire-resistant thin pane. 
     
     
         3 . The hybrid framed curtain wall panel of  claim 1 , wherein the band of fire-resistant infill of the first interior infill comprises a mineral wool panel infill. 
     
     
         4 . The hybrid framed curtain wall panel of  claim 1 , wherein the band of fire-resistant infill of the first interior infill comprises an inorganic foam material. 
     
     
         5 . The hybrid framed curtain wall panel of  claim 4 , wherein the inorganic foam material is formed by a low-temperature process comprising mixing a glass and a cement to form a raw material of inorganic foam material, forming a gas inside the raw material of inorganic foam material by a foaming agent, and forming an inorganic foam material made from the glass and the cement. 
     
     
         6 . The hybrid framed curtain wall panel of  claim 1 , wherein the structural infill of the second interior infill comprises a composite foam panel infill. 
     
     
         7 . The hybrid framed curtain wall panel of  claim 1  further comprising a third interior infill, wherein the third interior infill comprises a continuous fire-resistant infill. 
     
     
         8 . The hybrid framed curtain wall panel of  claim 1 , wherein the first interior infill and the second interior infill are sealingly adjoined. 
     
     
         9 . The hybrid framed curtain wall panel of  claim 1 , wherein the first interior infill and the second interior infill are adjoined with silicone. 
     
     
         10 . The hybrid framed curtain wall panel of  claim 1 , wherein a floor slab is adjoined to an inter-floor fire safing and wherein the first interior infill is adjoined to the inter-floor fire safing.