a and 1b it is emphasized that the figures or drawings are not intended to be to scale for example purely for the sake of greater clarity in the drawings layer thicknesses and spacings are not dimensioned as they actually exist in the assembled embodiments the fire protective sheet 10 of the present invention is a multi layered flexible material containing at least one layer of intumescent material the fire protective sheet 10 will preferably contain from 2 5 layers of heat resistant materials an exploded view of several layers is seen in fig1 a the component layers of the fire protection system 10 may be composed of the same fire resistant materials or different heat resistant materials interspersed between the layers of fire resistant materials is an intumescent 17 that will expand during a fire although any flame resistant material can be used in the present invention preferred embodiments will include metal foils fire resistant fabrics or a combination of materials such as aluminum foil stainless steel foil fiberglass or alumina silica fabric in a preferred embodiment illustrated in fig1 a fire resistant layer 11 is made of a thin sheet of stainless steel such as a 0 002 or 0 003 gauge foil layer 12 is made of a fiberglass material layer 13 is made of ceramic wool and layer 14 is.