A layered sheet comprising a flame resistant wet-laid nonwoven paper having a first and second surface and an inorganic refractory layer adjacent to at least one surface of the carrier wherein the refractory layer has a dry areal weight, measured according to ISO 536, of from 15 to 50 gsm, a residual moisture content, measured according to ISO 287, of no greater than 10 percent by weight and wherein the paper (i) comprises from 40 to 70 weight percent of meta-aramid or para-aramid fibers and from 30 to 60 weight percent of polymeric binder, (ii) is hydrophilic, (iii) has a wet tensile strength, measured according to TAPPI T456 om-10, of at least 3 lb/in (0.53 N/mm) in a first direction and at least 2 lb/in (0.35 N/mm) in a second direction, the second direction being transverse to the first direction, (iv) has a dry tensile strength, measured according to TAPPI T494 om-06, of at least 7 lb/in (1.23 N/mm) in a first direction and at least 3 lb/in (0.53 N/mm) in a second direction, the second direction being transverse to the first direction, (v) has an air permeability, measured according to TAPPI T460 om-11, of no greater than 2000 Gurley Air Resistance (sec/25cc, 20 oz. (567 g) cyl.), (vi) has a smoothness, measured according to TAPPI T538 om-08, on at least one surface of no greater than 150 Sheffield units, (vii) has a surface release value from at least one surface of from 0.25 to 0.8 lb/in (0.043 to 0.14 N/mm), (viii) has a thickness, measured by TAPPI T411 om-10, of from 0.025 to 0.175 mm, (ix) has a density of from 0.60 to 1.1 g/cc, and (x) has a basis weight, measured according to TAPPI T 410, of from 20 to 70 gsm, and wherein the refractory layer comprises inorganic platelets of clay, such as montmorillonite; vermiculite; mica; talc and combinations thereof and wherein at least 85 % of the refractory layer comprises inorganic platelets. (i) comprises from 40 to 70 weight percent of meta-aramid or para-aramid fibers and from 30 to 60 weight percent of polymeric binder, (ii) is hydrophilic, (iii) has a wet tensile strength, measured according to TAPPI T456 om-10, of at least 3 lb/in (0.53 N/mm) in a first direction and at least 2 lb/in (0.35 N/mm) in a second direction, the second direction being transverse to the first direction, (iv) has a dry tensile strength, measured according to TAPPI T494 om-06, of at least 7 lb/in (1.23 N/mm) in a first direction and at least 3 lb/in (0.53 N/mm) in a second direction, the second direction being transverse to the first direction, (v) has an air permeability, measured according to TAPPI T460 om-11, of no greater than 2000 Gurley Air Resistance (sec/25cc, 20 oz. (567 g) cyl.), (vi) has a smoothness, measured according to TAPPI T538 om-08, on at least one surface of no greater than 150 Sheffield units, (vii) has a surface release value from at least one surface of from 0.25 to 0.8 lb/in (0.043 to 0.14 N/mm), (viii) has a thickness, measured by TAPPI T411 om-10, of from 0.025 to 0.175 mm, (ix) has a density of from 0.60 to 1.1 g/cc, and (x) has a basis weight, measured according to TAPPI T 410, of from 20 to 70 gsm, and wherein the refractory layer comprises inorganic platelets of clay, such as montmorillonite; vermiculite; mica; talc and combinations thereof and wherein at least 85 % of the refractory layer comprises inorganic platelets.