Flow-delay retention board key features High rainwater retention nearly 12 l/m2 of water storage capacity Delayed rainwater runoff stepped barriers avoid overuse of wastewater channel system 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 Application Flow-delay retention board for extensive and semi-intensive greenroofs and hardsurface pedestrian areas, made of recycled high-impact 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 recessed evaporation 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*s certified according to EN ISO 12958, water storage capacity 11.8 l/m2, microbiological resistance tested (EN 12225), 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 Microbiological resistance EN12225 25-year stability guaranteed! Technical data Board size: (mm) Rainwater retention capacity (l/m2 ): Overlap loss: In-fill volume (l/m2): Surface weight (kg/m2): Fire resistance classification (EN 13501-5): Compressive strength (kN/m²): Material: Water flow capacity EN ISO 12958 (l/m*s): Storage: store horizontally, for longer-term storage protect from UV radiation. DIADEM® APP Kft. H–9028 Gyôr, Fehérvári út 75. Tel.: +36 96/512 910 [email protected] www.diadem.com 09032500 Product information sheet Vegetation Growing media VLF 150/200 filter layer DiaDrain-25H VLU 300/500 mechanical protection layer Root resistant waterproofing membrane Roof construction