Expanded Polystyrene Insulation Properties

Foamex polystyrene building products make a major contribution to the quality. The graphs below show the values achieved on these properties depending on the apparent density of expanded polystyrene materials. 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.

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Three Main Types Of Rigid Foam Insulation Expanded Polystyrene Eps Extruded Polystyrene Xps Polyisocyanurate Polyis Rigid Foam Insulation Insulation Foam

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Expanded Vs Extruded Polystyrene Eps Vs Xps

Thermal Resistance Per Unit Area Types Of Insulation Insulation R Value R Value

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.

Expanded polystyrene insulation properties.

This makes the transport costs minimum. Therefore it is one of the lightest packaging material. 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. The density of the material is closely related to the mechanical resistance properties.

The most favourable properties of this polymer material include excellent thermal insulation damping properties and extreme lightweight. The expanded version of polystyrene is about forty times the volume of the original polystyrene granule. 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. 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.

Ps foams also exhibit good damping properties therefore it is used widely in packaging. Expanded polystyrene eps. Expanded polystyrene or eps geofoam is a cost efficient insulation material used in the construction industry. 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.

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. 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. It provides an overview of the facts on fire safe constructions using eps building products. The thermal conductivity of expanded polystyrene foam of density 20 kg m 3 is 0 035 0 037 w m k at 10 c.

About 98 of expanded polystyrene is air. The purpose of this document is to clarify the performance of expanded polystyrene foam eps when used as insulation material. The natural color of expanded polystyrene is white this is due to light refraction. Unique properties of eps make it the ideal sustainable insulating material for many applications.

Grey polystyrene foam incorporating graphite has superior insulation properties. It is extremely lightweight but strong and durable.

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