An article comprising a polymeric foam board having a primary surface and an intumescent coating on a primary surface of the polymeric foam board, the intumescent coating comprising: a. a polymeric binder having a tensile elongation of 50% or more as measured on test bars according to ISO 37 as described in the description, present in a concentration of 20 wt.% or more as measured by thermogravimetric analysis according to ASTME1131; b. expandable graphite particles dispersed within the polymeric binder, the expandable graphite having an onset temperature in a range of 150 to 200 degrees Celsius as determined by thermal mechanical analysis, an average particle size in a range of 0.07 to 0.60 millimeters as determined according to ASTM D1921-06 and a concentration of 15 weight-percent or more based on total weight of intumescent coating; c. a phosphorous material that provides phosphorous at a concentration of 2 to 15 weight-percent based on total weight of intumescent coating, wherein the phosphorous material is any one or any combination of more than one material selected from a group consisting of ammonium polyphosphate phase I, ammonium polyphosphate phase II, melamine formaldehyde resin modified ammonium polyphosphate, silane modified ammonium polyphosphate, melamine polyphosphate, bisphenol A bis(diphenyl phosphate), cresyldiphenyl phosphate, dimethylpropane phosphonate, polyphosphonates, metal phosphinate, phosphorous polyol, phenyl phospholane, polymeric diphenyl phosphate, resorcinol-bis-diphenylphosphate, triethyl phosphate, tricresyl phosphate, triphenyl phosphate, red phosphorous, phosphate acid and ammonium phosphate; and d. a boron-containing compound that provides a boron concentration in a range of greater than zero to two weight-percent based on total intumescent coating weight, and having a sintering temperature in the range from 400 to 600 degrees Celsius; where the article is free of an object that is in contact with the intumescent coating and that sandwiches the intumescent coating between it and the polymeric foam board and wherein the intumescent coating has a tensile elongation of at least 50 percent and less than 100 percent at 23 degrees Celsius as measured on test bars according to ISO 37 as described in the description, has a storage modulus as measured using oscillatory rheology as described in the description of less than 1 × 10 6 Pascals at 250 degrees Celsius, is halogen-free, free of sodium silicate, free of polyurea elastomer, and free of formals of pentaerythritol and dipentaerythritol. a. a polymeric binder having a tensile elongation of 50% or more as measured on test bars according to ISO 37 as described in the description, present in a concentration of 20 wt.% or more as measured by thermogravimetric analysis according to ASTME1131; b. expandable graphite particles dispersed within the polymeric binder, the expandable graphite having an onset temperature in a range of 150 to 200 degrees Celsius as determined by thermal mechanical analysis, an average particle size in a range of 0.07 to 0.60 millimeters as determined according to ASTM D1921-06 and a concentration of 15 weight-percent or more based on total weight of intumescent coating; c. a phosphorous material that provides phosphorous at a concentration of 2 to 15 weight-percent based on total weight of intumescent coating, wherein the phosphorous material is any one or any combination of more than one material selected from a group consisting of ammonium polyphosphate phase I, ammonium polyphosphate phase II, melamine formaldehyde resin modified ammonium polyphosphate, silane modified ammonium polyphosphate, melamine polyphosphate, bisphenol A bis(diphenyl phosphate), cresyldiphenyl phosphate, dimethylpropane phosphonate, polyphosphonates, metal phosphinate, phosphorous polyol, phenyl phospholane, polymeric diphenyl phosphate, resorcinol-bis-diphenylphosphate, triethyl phosphate, tricresyl phosphate, triphenyl phosphate, red phosphorous, phosphate acid and ammonium phosphate; and d. a boron-containing compound that provides a boron concentration in a range of greater than zero to two weight-percent based on total intumescent coating weight, and having a sintering temperature in the range from 400 to 600 degrees Celsius;