Regardless of the density of the expanded polystyrene, the material is practically not susceptible to moisture, but it is better not to allow direct exposure to water, according to the conditions that are put forward by building codes for the use of this material.

Mark and density directly affect the flammability of the material, the higher the indicator - the safer the polystyrene. Do not forget about safety measures and warnings of possible fires. This is due to the fact that the material will not burn, but it melts fine. At the same time, corrosive poisonous fumes are released into the air, which do not affect the health of the human body in the best way.

For the Cut Sheets

A special property that directly depends on the density of the extruded polystyrene is its resistance to deformation. The higher the strength and density, the stronger the material. Many worry that as a result of temperature changes or individual architectural features of the structure, polystyrene will crumble or break. To reduce this probability, you need to choose a material with high strength indicators.

Resistance to mechanical stress and ultimate loads also depends on the indicator in question. In this case, it must be taken into account that the quality of the stability of the material depends on how high the figure indicating the density is.

Given that any construction work involves loads, regardless of whether they are short-term or permanent, it is worthwhile to purchase the right type of material, taking into account the own characteristics of the future building.

Resistant to shape changes

This is another feature of the material that is worth paying attention to. Long-term storage of plates under improper storage conditions can lead to passive deformation or shrinkage.

Polystyrene is a high-quality material, characterized by a number of advantages. Its heat-insulating and noise-proofing properties are exceptional, which is explained by the filling of voids between the granules with special protective compounds, usually a flame retardant. The thickness of the material does not differ from traditional polystyrene plates used for decorating building facades.

The bulk density of extruded polystyrene determines the possibility of using it in exterior architectural refinements. Such a material should meet the requirements for elasticity at low temperatures so that the plates do not deform and do not become cracked. Guided by such requests, it is preferable to use thinner plates that fully satisfy the thermal insulation requirements.

Polystyrene density for underfloor heating

Interaction with aggressive environment and moisture is of no small importance, for example, for thermal insulation of the foundation. The soil condition is such that acidity or alkalinity have a negative effect on wood or other types of insulation.

In this case, laying the extruded polystyrene plates will be the best solution. Unlike the classical version, such sheets practically do not absorb moisture and do not interact with the chemical composition of the soil.

About the Company: Foam Technologies are one of Australia’s leading polystyrene suppliers, servicing the building and construction sector.