Optigrün Filter Fleece FIL 300 is used as a filtration layer between the drainage and gravel layer on public roofs that are used by trucks and cars.
Nominal thicknessapprox. 3 mm
Grammageapprox. 300 g/m²
Puncture resistance3,800 N (EN ISO 12236)
Vertical water permeability57 l/s m² (EN ISO 11058)