kmuf vsuumoN Urbanscape Drainage with buffer Q25 / Q25-C of Urbanscape Green Roof System > High water absorption > High thermal performance > High acoustic performance > High fire resistance Description Urbanscape Drainage with buffer Q25 / Q25-C is a drainage and reservoir board (25 mm height) made from recycled polystyrene (HIPS) with excellent load-bearing capacity specifically designed for green roofs. The panels are perforated on one side to allow installation with the holes on the upper side for water retention. It is designed for flat and sloped green-roof systems with a slope of up to 20°. The drainage is made of high-quality plastic to ensure that the system is lighter and more compact in comparison with regular drainage layers. It complies with the FLL Guidelines for the Planning, Execution and Upkeep of Green-Roof Sites. Urbanscape Drainage with buffer Q25 ensures the buffering of water in dry periods and rapid drainage of water in wet periods. Urbanscape Drainage with buffer Q25-C is designed in such a way that it provides a low runoff coefficient C. Both drainage types aerate the root system of the plants. > Panels are perforated on one side to allow water retention. Install the panels with the holes on top. > Cover the total roof area with the panels. > Cut out material where drain baskets must be installed. > For safety reasons and protection of the roofing membrane, use a hook cutter for cutting the drainage panels. Do not use a sharp blade cutter or knife. > Urbanscape Drainage with buffer Q25-C must always be placed above the Urbanscape Geotextile 300-REC (500-REC). > Above the drainage Q25-C place a filter layer - Urbanscape Geotextile 110 with an overlap of 10 cm Storage: UV resistant; after installation, shall be covered within 24 hours. Compressive strength empty Compressive strength filled - by compression - 2 mm kN/m2 Compressive strenght filled - by compression - 10 %*** Water flow capacity * water flow under the sheet, o = 20 kPa ** build-up installation, with 8 cm substrate “ computer simulated modelling UV resistant; after installation, shall be covered within 24 hour. Knauf Insulation Urbanscape | Drainage with buffer Q25 / Q25-C | valid from December 2024 | www.urbanscape.knaufinsulation.com | Page 1

knauf vsuumoN Urbanscape Drainage with buffer Q25 / Q25-C Urbanscape Sedum-mix Blanket Urbanscape Green Roll 40 mm Urbanscape Geotextile (optional) Waterproof membrane with integrated root protection Roof base structure Skofja Loka, Trata 32, 4220 Skofja Loka, Slovenia All rights reserved, including those of photomechanical reproduction and storage in electronic media. Extreme caution was observed when putting together and processing the information, text and illustrations in this document. Nevertheless, errors cannot be completely ruled out. The publisher and editors cannot assume legal responsibility...