ROOF GARDEN DRAINAGE AND AQUADRAIN
ROOF GARDEN DRAINAGE AND AQUADRAIN COMPONENTS AquaDrain 25 Ecosand 25mm plate, 95% void Cover materials are an essential part of the infiltration process. Ecosand is biologically engineered to provide maximum permeability through optimum physical, chemical and biological characteristics. AquaDrain 50 50mm plate, 96% void
ROOF GARDEN DRAINAGE AND AQUADRAIN DESIGN FOR ALL ROOF STRUCTURES 1. Permeable soil mix 2. Geotex 225 Filter Fabric Lightweight Garden 3. AquaDrain 25/50 Over metal roof awning - plate and number of layers dependant on drainage requirements. Lightweight Garden 4. Tuflex With minimum soil depth waterproof membrane 5. Reinforced concrete slab to be designed as per Garden engineers details and With minimum soil depth loading requirements of roof garden water outlet
ROOF GARDEN DRAINAGE AND AQUADRAIN ADVANTAGES OF THE ROOF GARDEN ❑ Environmental ❑ Storm water run-off management ❑ Absorbs CO2 ❑ Reduces urban heat island effects ❑ Reduces need for heating/ventilation systems – year round energy efficiency ❑ Modifies urban micro-climates ❑ Provides diverse habitats ❑ Retains and manages rainwater ❑ Purifies air and water ❑ Provides economic benefits ❑ Energy efficiency year-round ❑ Air and water purification
ROOF GARDEN DRAINAGE AND AQUADRAIN ADVANTAGES OF USING AQUADRAIN ❑ Reduces required soil depths and the associated loading requirements needed to support the soils ❑ No aggregate taxes where used to replace stone layers ❑ Reduced transport costs due to lightweight module with high void ratio (more for less) ❑ High void ratio allows water to infiltrate the roof garden quicker, creating a more efficient roof garden design ❑ Helps capture some water to prevent soils drying out during periods of dry weather
ROOF GARDEN DRAINAGE AND AQUADRAIN CASE STUDY - GCHQ Project: Government Communications Headquarters Client: GCHQ Location: Cheltenham Date of Installation: 2000 Type of System: Landscaped garden above underground area Infor: An enclosed and secure landscaped garden located in the centre of the doughnut. It is for the use of the workers and is an effort to encourage inter-departmental staff interaction.
CAR PARK DRAINAGE AND ROAD DRAINAGE SYSTEMS
POROUS PAVING SYSTEMS AND AQUADRAIN 50
POROUS PAVING SYSTEMS AND AQUADRAIN 50 ATTENUATION AND INFILTRATION AquaDrain 50 AquaDrain 50 Infiltration Attenuation
POROUS PAVING SYSTEMS AND AQUADRAIN 50 COMPONENTS AquaDrain 50 50mm plate, 96% void Geotex 300PP ❑ Tuflex and 300PP for use when Geotex 225FF Tuflex water is being directed to a Protection Fleece Filter Fabric Waterproof Membrane specified destination ❑ Geotex 225FF to be used when water is allowed to soakaway into the surrounding ground
POROUS PAVING SYSTEMS AND AQUADRAIN 50 SAVING COST AND IMPROVING FLOW RATES
POROUS PAVING SYSTEMS AND AQUADRAIN 50 SAVING COST AND IMPROVING FLOW RATES
POROUS PAVING SYSTEMS AND AQUADRAIN 50 SAVING COST ALL ROUND Reductions in cost of stone are not the only savings. Although AquaDrain 50 is more expensive, the associated costs offset the extra initial cost: ❑ A 72% reduction in stone quantity from the use of AquaDrain 50 means; ❑ Up to 95% cost reductions for transport (due to weigh and size restrictions of transporting stone) ❑ 75% reduction in aggregate levy’s ❑ And finally a 30% reduction in dig volume and the associated labour and job cost. THE GIVEN EXAMPLE IS TAKEN FROM A 250 m 2 CAR PARK WITH POROUS PAVING AND REQUIREMENT FOR A 66l/ m 2 STORAGE CAPACITY AND CAN BE FOUND IN FULL IN OUR AQUADRAIN 50 BROCHURE
COMBINED SURFACE AND CHANNEL SYSTEMS ROADSIDE DRAINAGE
COMBINED SURFACE AND CHANNEL SYSTEMS COMPONENTS 25mm plate, 95% void VersaVoid Pluvial Cube Modular tan, 96% void Modular, 96% void 50mm plate, 96% void Geotex 300PP Tuflex Ecosand Geotex 225FF Protection Fleece Waterproof Membrane Ecological soil Filter Fabric
COMBINED SURFACE AND CHANNEL SYSTEMS ROADSIDE DRAINAGE WITH GULLY POT ❑ More traditional collection, but water released into Pluvial Cube Soakaway ❑ Pluvial Cube wrapped in permeable Geotex 225FF and surrounded with suitable filter media such as ESS EcoSand
COMBINED SURFACE AND CHANNEL SYSTEMS LARGER ROAD DRAINAGE SCHEMES CONCRETE SLAB ROAD ESS ECOSAND FILTER MEDIUM GEOTEX 225FF PERMEABLE GEOTEXTILE GEOTEX 300PP TUFLEX IMPERMEABLE GEOMEMBRANE ESS PLUVIAL CUBE MODULES ❑ For use with both porous and non-porous road surfaces ❑ Combination of AquaDrain 50 and Pluvial Cube creates storage channels and storage volume ❑ Geotex 225 lining around outside edges of Pluvial creates and infiltration/soakaway, whilst Tuflex lining everywhere else allows for water channelling – even from the centre of the road
COMBINED SURFACE AND CHANNEL SYSTEMS ADVANTAGES ❑ Removes need for storm drains ❑ Percolation of rainwater into the soil ❑ Aquifer recharge ❑ Soil erosion reduction ❑ Relieves pressures on sewer systems Most Importantly: ESS roadside drainage removes the need for expensive road maintenance needed to repair damage caused by flooding.
SURFACE DRAINAGE AND ROADSIDE SWALE SYSTEMS
POROUS PAVING COMBINED SURFACE AND SYSTEMS AND PLUPAVE CHANNEL SYSTEMS TURF AND GRAVEL DRAINAGE CELL COMBISWALES
POROUS PAVING SYSTEMS AND PLUPAVE TURF AND GRAVEL DRAINAGE ❑ Reduces surface temperature ❑ Reduces surface runoff ❑ No surface drains required ❑ Easy installation ❑ Rigid Clipping System ❑ Cost effective Demarkation squares Provide ground marking in place traditional painted ground layouts
COMBINED COMBISWALE SYSTEMS DESCRPTION CombiSwales, or Combined Bioswales, are combined surface and sub-surface systems, providing optimum conditions to both prevent flooding and purify stormwater. ❑ Attenuation or infiltration ❑ Can be used to transport water, or just to filter and purify it before allowing to re-enter the natural water system At the surface, the grassed cover is non-invasive and helps to break down pollutants. Beneath, a sub-surface channel helps transport water to a designated outlet. In doing so, CombiSwales optimise the natural cleansing process whilst also providing surface and sub-surface void space.
COMBINED COMBISWALE SYSTEMS BENEATH THE SURFACE ❑ Water is further filtered through geotextile cover ❑ Water enters Pluvial Cube and is directed to either a specified outlet or soaks away into the surrounding ground
COMBINED COMBISWALE SYSTEMS TYPICAL INSTALLATION CASE STUDY Project: North Earlham Fire Station Client: Norfolk County Council Location: Norfolk Installation Date: 2015 Type of System: Rainwater Harvesting/Swale Size: RWH Tank – 23 m³ Swale – 52 m³ Depth of Cover: 300 -500 mm Zero discharge from site
FILTER PITS AND FLOW CONTROL FOR USE WITH ESS WATER MANAGEMENT SYSTEMS ESS Filter Pit AquaBrake Chamber Water Filtration Flow Control
FILTER PITS AND FLOW CONTROL AQUABRAKES HOW THEY WORK As the chamber fills, the Aquabrake is During low flows, the Aquabrake submerged and a rotational velocity established. behaves like a traditional opening This causes an air-cored vortex to form in the and water passes through at a normal outlet which creates a significant opposition to rate. flow through the device.
FILTER PITS AND FLOW CONTROL AQUABRAKES CHAMBERS KEY SYSTEM RESPONSES A Low Flow D Drain-Down B High Flow C Blockage During low flows, During high flows, The chamber can be The integral vertical water passes completely drained the AquaBrake is overflow pipe through the down via the manual submerged and an prevents flooding AquaBrake in a bypass door and fitted air-cored vortex is and water bypasses traditional manner. pull wire . formed. the AquaBrake.
SUSTAINABLE DEVELOPMENT – THE SOLUTION TO URBAN FLOODING Modular Tank Systems For Infiltration/Attenuation Rainwater Harvesting Recycling System using VersaVoid Pluvial/ VersaVoid Pluvial Cube Modular Tank Modular Tank System System
WATER COLLECTION AND STORAGE SYSTEMS STRUCTURAL COMPLIANCE CIRIA C737 ❑ Images extracted from CIRIA C737 ❑ Show problems of buckling when using perforated pipes ❑ ESS removes the need for pipes
DESIGN AND INSTALLATIONS NATIONALLY AND INTERNATIONALLY ❑ Barwa City Project, Qatar ❑ Motor City Project, Dubai ❑ City of Arabia, Dubai ❑ Burj Hotel, Dubai ❑ Pam Island Atlantis Hotel, Dubai ❑ The palm Grandeur, Dubai ❑ 7 Towers Project, Dubai ❑ Al Barari Development, Dubai ESS’ outstanding reputation extends beyond the UK. As well as working across the country, we have had lots of experience working within the Middle East.
ENVIRONMENTAL SUSTAINABLE SOLUTION LTD THANK YOU For more information please visit our website www.alderburgh.com
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