Flow-delay retention board KEY FEATURES High rainwater retention ca. nearly 12 l/m2 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 FLL1 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 Growing media 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. VLF 150/200 filter layer DiaDrain-25H VLU 300/500 mechanical protection layer Root resistant waterproofing membraine Roof construction 100% recyclable microbiological resistance EN12225 TECHNICAL DATA Board size (mm): Rainwater retention capacity (l/m ): Runoff reference value (C) : Overlap loss: Fire resistance classification (EN 13501-5): Compressive strength (kN/m²): recycled high-impact polystyrene (HIPS) Water flow capacity EN ISO 12958 (l/m*s): Storage: at 2%: 0,57 • at 3%: 0,71 • at 5%: 0,91 store horizontally, for long-term storage protect from UV radiation adjacent to each other or overlapped, cover immediately after laying in case of a typical extensive green roof build-up APP Dachgarten GmbH, D–85049 Ingolstadt, Jurastrasse 21 Tel.:+49 841 370 9496 • [email protected] • www.grundach.com DIADEM® APP Kft., H–9028 Gyôr, Fehérvári út 75. Tel.: +36 96 512 910 • [email protected] • www.diadem.com Diadem® is a registered trademark. The written permission of the publisher is required to use the images, texts and illustrations in this publication.All rights reserved. Data and images contained in the brochure are indicative, we do not accept responsibility for possible printing errors. 09032501 • #4835 PRODUCT INFORMATION SHEET 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, runoff reference value according to FLL: 0,291, microbiological resistance tested (EN 12225), fire resistance classification “BROOF(t2)” (EN 13501-5), laid. Product: DIADEM® DiaDrain-25H. Manufacturer’s Certificate of Origin (MCO)