Studded drainage membrane DiaDrain-25h

polystyrenewater storagegreen roof drainage

Advantages • High rainwater retention →ca. nearly 12 l/m of water storage capacity • Delayed rainwater runoff-›stepped barriers avoid overuse of wastewater channel system • Runoff reference value (C) 0,29 water delay over 70% according to FLL' • Microbiological resistance test (EN 12225) -stepped barriers avoid overuse of wastewater channel system • Recessed evaporation vents→unobstructed aeration • Negligible overlap loss economical installation and cost savings • Increased contact area decreased surface pressure DIADEM® build-up • Vegetation • Growing media • VLF 150/200 filter layer • DiaDrain-25H • VLU 300/500 mechanical protection layer • Root resistant waterproofing membraine • Roof construction Application Flow-delay retention board for extensive and semi-intensive greenroofs and hard- surface pedestrian areas, made of recycled highimpact polystyrene (HIPS). The flow-delay and the retention functions are provided by the stepped barrier design. Specification Flow-delay retention board with CE marking, made of recycled high-impact polystyrene, 25 mm high, stepped barrier form, with deep-drawn recessedevaporation vents and water channel system on the underside, compressive strength 322 kN/m2 (unfilled), water flow capacity on 2% roof slope 0.57 l/m*scertified according to EN ISO 12958, water storage capacity 11.8 l/m2, runoff reference value according to FLL: 0,291, microbiological resistance tested (EN12225), fire resistance classification “BROOF(t2)” (EN 13501-5), laid.Product: DIADEM® DiaDrain-25H.Manufacturer’s Certificate of Origin (MCO): APP Kft.Website: www.diadem.com