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Application DetailsGreen roof — 1Hydrotech waterproofing for inverted/extensive build-upPlug-planted sedums at 15-20 per square metre70mm Sedum Carpet SubstrateFloradrain ® FD 25 E drainage layer withintegral Filter Sheet SFExtruded polystyrene insulation(optional), thicknessdetermined to meet the required U valueHydrogard 40-AR Root Barrier, brush rolled into the final coatConcrete surface to be finished with a wood float (to minimum 1:80 fall),then primed with Alumasc Bitumen PrimerHydrotech structural waterproofing system consisting of two coatsof Hydrotech Monolithic Membrane 6125 incorporating Flex Flash Fpolyester reinforcement fabric between both layersGreen roof — 2Hydrotech un-insulated waterproofing for irrigated intensive build-up on podium deckPlanting as specified200mm Roof Garden SubstrateFilter Sheet SFFloradrain ® FD 60 drainage layer with integral Filter sheetSF and Zincolit infillHydrogard 40-AR Root Barrier, brush rolled to the final coat40mm reservoir of waterHydrotech structural waterproofing system consisting of two coatsof Hydrotech Monolithic Membrane 6125 incorporating Flex Flash Fpolyester reinforcement fabric between both layersConcrete surface to be finished with a wood float (no falls),then primed with Alumasc Bitumen PrimerPlease refer to Alumasc ZinCo Green Roofing Systemsliterature for more comprehensive informationAlumasc Technical Helpline +44 (0) 1744 64840051