Expanded Polystyrene Insulation Properties

Uses of polystyrene polystyrene foams are used for a variety of applications because of its excellent set of properties including good thermal insulation good damping properties and being extremely light weight.

Expanded polystyrene insulation properties.

The expanded version of polystyrene is about forty times the volume of the original polystyrene granule. The density of the material is closely related to the mechanical resistance properties. Expanded polystyrene or eps geofoam is a cost efficient insulation material used in the construction industry. The thermal conductivity of expanded polystyrene foam of density 20 kg m 3 is 0 035 0 037 w m k at 10 c.

It is extremely lightweight but strong and durable. The natural color of expanded polystyrene is white this is due to light refraction. Ps foams also exhibit good damping properties therefore it is used widely in packaging. About 98 of expanded polystyrene is air.

The most favourable properties of this polymer material include excellent thermal insulation damping properties and extreme lightweight. Expanded polystyrene eps. Unique properties of eps make it the ideal sustainable insulating material for many applications. Polystyrene is a colorless transparent thermoplastic which is commonly used to make foam board or beadboard insulation and a type of loose fill insulation consisting of small.

The graphs below show the values achieved on these properties depending on the apparent density of expanded polystyrene materials. Carl munters and john gudbrand tandberg of sweden received a us patent for polystyrene foam as an insulation product in 1935 usa patent number 2 023 204. A versatile building material it works well for a variety of different applications such as road construction bridge abutments slope stabilization building foundations retaining walls stadium and theatre seating fill for. Grey polystyrene foam incorporating graphite has superior insulation properties.

Insulation for buildings coldrooms pipes and vessels sagex has more than 50 years experience in the manufacture of eps and introduced the product into the south african market. Therefore it is one of the lightest packaging material. Generally polystyrene is a synthetic aromatic polymer made from the monomer styrene which is derived from benzene and ethylene both petroleum products polystyrene can be solid or foamed. The purpose of this document is to clarify the performance of expanded polystyrene foam eps when used as insulation material.

Expanded polystyrene is widely used in building and construction as its inherent strength durability and thermal insulation properties make it an ideal choice for energy efficient buildings. It provides an overview of the facts on fire safe constructions using eps building products.