Expanded Polystyrene Foam Board Insulation Fire Resistant

It is denser than eps and provides more r value with a rating of 5 per inch of thickness.

Expanded polystyrene foam board insulation fire resistant.

However the burning behaviour of eps depends largely on end use conditions and whether the eps material is with or without a fire retardant additive. 1 in x 4 ft x 8 ft. The thermal conductivity of expanded polystyrene foam of density 20 kg m 3 is 0 035 0 037 w m k at 10 c. Astm c578 standard specification for rigid cellular polystyrene thermal insulation addresses the physical properties and performance characteristics of eps foam as it relates to thermal insulation in construction applications.

Because of its resistance to moisture foam board insulation is a great choice. Like all organic building materials polystyrene foam is combustible and does react to fire resulting in the decomposition of styrene and the release of carbon monoxide smoke and water. When installed correctly expanded polystyrene products do not present an undue fire hazard. However in practice its burning behavior depends on the conditions under which it is used as well as the inherent properties of the material.

Like practically all organic building materials polystyrene foam is combustible. This q a article discusses the requirement for a fire resistant covering for foam and foam board board building insulation.