TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The inorganic particulate filler is selected from mica, talc, vermiculite, calcined clay, silica, alumina, titania, acicular titanium dioxide, wollastonite and/or boron nitride. The inorganic flame retardant is selected from aluminum hydroxide, magnesium hydroxide, zinc borate, antimony-based flame retardants, guanidine-based flame retardants and/or zirconium-based flame retardants.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: The organic flame retardant is selected from phosphorus-based flame retardants, phosphorus and halogen-based flame retardants, chlorine-based flame retardants and/or bromine-based flame retardants.    TECHNOLOGY FOCUS - POLYMERS - Preferred Film: The polymeric film comprises a polymer that does not melt at temperatures below 300 degrees C. The film contains at least 50 wt.% of the inorganic particulate filler; and has an average thickness of at least 90 (preferably at least 100) microns. The second polymeric film is a fluoropolymer film. The second polymeric film comprises fluoropolymer selected from polyvinylfluoride and/or polyvinylidene fluoride. The film further comprises an organic flame retardant; and inorganic flame retardant. Preferred Sheet: The back-sheet further comprises a third polymeric film, and the fire resistant polymeric film is laminated between the second and third polymeric films. The second and third polymeric film is a polyester film. The inorganic particulate filler in the fire resistant polymeric film has an average particle size of 0.5-100 microns. Preferred Components: The polymer of fire resistant polymeric film is selected from polyaramids, polysulfonamides, aromatic polyimides, polyamideimides, polybenzoxazoles, polybenzimidazoles, polybenzthiazoles, highly aromatic epoxies, crosslinked silicones, polyetherimides, polyesterimides, polysulfones and polyether sulfones, polyketones and polyether ketones, polyphenylene oxides, polyphenylene sulfide and/or aromatic polyesters (preferably polyaramids, polysulfonamides, polyamideimides, and aromatic polyimides). EXAMPLE - No suitable example given.