Extruded Polystyrene Thermal Insulation

Expanded polystyrene and extruded polystyrene are both made from polystyrene but eps is composed of small plastic beads that are fused together and xps begins as a molten material that is pressed out of a form into sheets.

Extruded polystyrene thermal insulation.

The density range is about 28 45 kg m 3. Extruded polystyrene thermal insulation boardwill not corrode or decay over time celfort 300 foamular 400 600 and 1000 are type 4 closed cell thermal insulating foams can ulc s701 01 supercedes can cgsb512 0 m87. Polystyrene foams are 95 98 air. It offers improved surface roughness higher stiffness and reduced thermal conductivity.

Heat cold and water are usually unsuccessful at overcoming quality extruded polystyrene. The advantages of extruded polystyrene xps has good thermal conductivity generally higher than eps. It s therefore preferred in areas with rather extreme weather conditions. Thermal performance is rated at r6 6 5 per inch but don t count on that if your winters are cold for the reasons we re about to explain.

Extruded polystyrene xps extruded polystyrene foam xps consists of closed cells. Because of the. Polystyrene foams are good thermal insulators and are therefore often used as building insulation materials such as in insulating concrete forms and structural insulated panel building systems. It s also highly resistant to different temperatures.

In general thermal insulation is primarily based on the very low thermal conductivity of gases. Extruded polystyrene material is also used in crafts and model building in particular architectural models. In general thermal insulation is primarily based on the very low thermal conductivity of gases. Typical thermal conductivity values for extruded polystyrene are between 0 025 and 0 040w m k.

Pir polyiso or iso is a thermoset plastic product typically produced as a foam and used as rigid thermal insulation panel most often with aluminum foil facing. 50mm cellecta hexatherm xroof 300l is an extruded polystyrene thermal insulation board designed specically for inverted roof applications where a high resistance to compression and water absorption is essential. Foamular 250 retards the transmission of water vapor and moisture in masonry walls. Foamular 250 extruded polystyrene xps provides continuous insulation in insulated concrete sandwich panel walls in masonry unit cavity walls or when used with non penetrating surface mounted furring systems over masonry or concrete walls.