The volcanic rocks 33 litres


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The volcanic rocks used in the mixture in the realization of green roofs, gives drainage capacity balanced. It has properties of drainage similar to those of the common aggregates of the river and the quarry, however due to the porosity of the internal is able to absorb and retain the rainwater.

Has mechanical characteristics capable of ensuring the carrying capacity and stability in time.

The porosity inside of the mineral guarantee specific weights to be low compared to common inert to the soil. The porosity inside of the volcanic material, it also ensures an adequate water holding capacity and water retention capacity of the elements were nourished, and on the other the presence in any moment and situation of oxygen gas is essential to the development and growth of the root system.


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