ROOF GARDEN DRAINAGE AND AQUADRAIN - Alderburgh

ROOF GARDEN DRAINAGE AND AQUADRAIN

ROOF GARDEN DRAINAGE AND AQUADRAIN COMPONENTS AquaDrain 25 25mm plate, 95% void AquaDrain 50 50mm plate, 96% Ecosand 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.

ROOF GARDEN DRAINAGE AND AQUADRAIN DESIGN FOR ALL ROOF STRUCTURES Lightweight Garden Over metal roof awning 1. Permeable soil mix 2. Geotex 225 Filter Fabric 3. AquaDrain 25/50 - plate and number of layers dependant on drainage requirements. Lightweight Garden 4. With minimum soil depth waterproof membrane 5. Garden With minimum soil depth Tuflex Reinforced concrete slab to be designed as per engineers details and 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 Infiltration AquaDrain 50 Attenuation

POROUS PAVING SYSTEMS AND AQUADRAIN 50 COMPONENTS AquaDrain 50 50mm plate, 96% void Tuflex and 300PP for use when water is being directed to a specified destination Geotex 225FF to be used when water is allowed to soakaway into the surrounding ground Tuflex Geotex 225FF Geotex 300PP Waterproof Membrane Filter Fabric Protection Fleece

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 THE GIVEN EXAMPLE IS TAKEN FROM A 250m2 CAR PARK WITH POROUS PAVING AND REQUIREMENT FOR A 66l/m2 STORAGE CAPACITY AND CAN BE FOUND IN FULL IN OUR AQUADRAIN 50 BROCHURE And finally a 30% reduction in dig volume and the associated labour and job cost.

COMBINED SURFACE AND CHANNEL SYSTEMS ROADSIDE DRAINAGE

COMBINED SURFACE AND CHANNEL SYSTEMS COMPONENTS 25mm plate, 95% void Pluvial Cube VersaVoid Modular, 96% void Modular tan, 96% void 50mm plate, 96% void Tuflex Ecosand Geotex 225FF Geotex 300PP Waterproof Membrane Ecological soil Filter Fabric Protection Fleece

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 GEOTEX 300PP TUFLEX IMPERMEABLE GEOMEMBRANE ESS ECOSAND FILTER MEDIUM GEOTEX 225FF PERMEABLE GEOTEXTILE 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 SYSTEMS AND PLUPAVE COMBINED SURFACE AND 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 Water Filtration AquaBrake Chamber Flow Control

FILTER PITS AND FLOW CONTROL AQUABRAKES HOW THEY WORK During low flows, the Aquabrake behaves like a traditional opening and water passes through at a normal rate. As the chamber fills, the Aquabrake is submerged and a rotational velocity established. This causes an air-cored vortex to form in the outlet which creates a significant opposition to flow through the device.

FILTER PITS AND FLOW CONTROL AQUABRAKES CHAMBERS KEY SYSTEM RESPONSES A Low Flow B High Flow C Blockage D Drain-Down During low flows, water passes through the AquaBrake in a traditional manner. During high flows, the AquaBrake is submerged and an air-cored vortex is formed. The integral vertical overflow pipe prevents flooding and water bypasses the AquaBrake. The chamber can be completely drained down via the manual bypass door and fitted pull wire.

SUSTAINABLE DEVELOPMENT – THE SOLUTION TO URBAN FLOODING Modular Tank Systems For Infiltration/Attenuation Rainwater Harvesting Pluvial Cube Modular Tank System Recycling System using Pluvial/ VersaVoid VersaVoid Modular Tank 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

ROOF GARDEN DRAINAGE AND AQUADRAIN DESIGN FOR ALL ROOF STRUCTURES Lightweight Garden Over metal roof awning Lightweight Garden With minimum soil depth Garden With minimum soil depth 1. Permeable soil mix 2. Geotex 225 Filter Fabric 3. AquaDrain 25/50 - plate and number of layers dependant on drainage requirements. 4. Tuflex waterproof membrane 5.