Expanded Polystyrene Foam Board Insulation Fire Resistant

Because of its resistance to moisture foam board insulation is a great choice.

Expanded polystyrene foam board insulation fire resistant.

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. This q a article discusses the requirement for a fire resistant covering for foam and foam board board building insulation. 1 in x 4 ft x 8 ft. 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.

This foam board insulation is the rigid pink or blue panels that can be found at home centers in many different thicknesses. Like practically all organic building materials polystyrene foam is combustible. Since most fire codes call for a minimum of half hour fire rating over foam insulations paneling would probably not provide a sufficient fire barrier over the foam insulating board. It is denser than eps and provides more r value with a rating of 5 per inch of thickness.

The thermal conductivity of expanded polystyrene foam of density 20 kg m 3 is 0 035 0 037 w m k at 10 c. Exposed foam board insulation fire hazards.