Expanded
clay is highly resilient, does not rot, does not burn and is resistant to frost. The λ value is in the range of 0.1 to 0.16 W/mK and thus achieves about half the insulating effect compared to the usual insulating materials (10 cm of expanded clay, for example, corresponds to 4 cm of flax). The grain size of 8–12 mm achieves the relatively best values. Expanded clay is very open to diffusion. Due to the greater density compared to other insulation materials, expanded clay is well suited for sound insulation and heat storage. Lightweight concretes with expanded clay and foam clays also have a heat-insulating effect, but the λ value is above 0.1 W/mK.
Delivery forms
Deliveries are made loose by truck, in bags of 50 litres or in big bags of 1,000 or 2,000 litres. From a quantity of approx. 25 m³, expanded clay is also delivered by silo truck and can be blown directly to the place of use.
The
material is offered in different grain sizes and for different areas of application. Areas of application as loose fill are levelling and filling fills in vaulted ceilings, standard floor ceilings, wooden beam ceilings, Dippeltram ceilings and between upholstery timbers. As an insulating lightweight concrete, expanded clay with cement is offered for floors and basement floors in contact with the ground. Expanded clay is a suitable bulk insulation material if sound insulation is required in addition to thermal insulation.
... read more on umweltberatung.at - Die Umweltberatung
red= Areas of application, grey= not possible
