The BVM-2 substrate for green roofs is formulated primarily from volcanic sand with a particle size of 0–6 mm (>, 80% by weight), sourced from the quarries of the company Burés PROFESIONAL, with a small percentage of organic plant matter.
The plant compost provides all the benefits of an organic soil amendment; the presence of organic matter aids in water retention, helps maintain the substrate’s structure, and, over the long term, gradually releases nutrients in small doses.
Plant-based compost provides all the benefits of an organic soil amendment; the presence of organic matter aids in water retention, helps maintain the soil structure, and, over the long term, gradually releases nutrients in small doses.
Furthermore, volcanic material is notable for its good aeration (porosity), chemical inertness, and structural stability.
Burés substrates for green roofs are characterized by being manufactured from blends of high-quality raw materials, designed to provide optimal aeration, water-holding capacity, and mix density, as shown in the curve.
Fast drainage and high stability. Highly porous growing medium. Very effective control of weed growth.
Furthermore, pre-composting its organic fraction allows us to ensure that the substrate is free of plant pathogens and weed seeds.
