No. At aerodurit, we do not use polystyrene in any of the products of the heat insulation plaster category. This applies to the thermal insulation system aerodurit AURORA as well as to the aerodurit PHOENIX lime thermal insulation plaster, which was specially developed for listed buildings. We have two good reasons for this: On the one hand, the production of polystyrene is associated with a very high expenditure of primary energy. On the other hand, the disposal may be cost-intensive and problematic, among other things, due to the use of chemical flame retardants. Both the environment and your health are very important to us, which is why we work with ecologically harmless, sustainable ingredients.