SIT Punggol (Punggol Digital District)

1. Establish Sub-Surface Drainage System beneath landscaped areas and inside planter boxes
2. Establish Fire Engine Accessways at Green Communal Lawn and Campus Court
3. Establish Rainwater Harvesting System at Rain Gardens

Forett at Bukit Timah

Establish Green Walls by Swimming Pool & Drop-off Point at Grand Courtyard.

Establish Fire Engine Accessway at Green Communal Lawn Areas.

Establish Green Walls by Swimming Pool & Drop-off Point at Grand Courtyard (Image 1 to 5)  

VersiWall^® GP (VGP) Trays were mounted on aluminium panels, establishing high-quality medium to massive-sized lush green walls. Automated irrigation systems were also built into the green walls, releasing precise amounts of water at predetermined times to sustain the plants.

Establish Fire Engine Accessway at Green Communal Lawn Areas (Image 6 to 7) 

Emergency fire engine access areas were created using TurfPave^® XD grass pavers installed beneath the ground at the green communal lawn areas. TurfPave^® XD’s porous structure allows rainwater to infiltrate the ground, protecting the grass roots against compaction and effectively supporting loads imposed by large fire trucks and human traffic.

Project Credits
Developer: Qingjian Perennial (Bukit Timah) Pte Ltd
Architect:  P&T Consultants Pte Ltd
Landscape Consultant:  Ecoplan Asia Pte Ltd
Main Contractor:  Qingjian International Group Pte Ltd
VersiWall GP^® (VGP) / TurfPave^® XD Installer: OneO2Plants Pte Ltd

Bukit Canberra Integrated Hub, Singapore

1. Establish Fire Engine Accessway at Community Lawn
2. Provide Drainage System Beneath Intensive and Extensive Green Roofs
3. Establish Sustainable Stormwater Management System

Project Credits
Owner: Sport Singapore
Architect: DP Architects Pte Ltd
Landscape Consultant: Henning Larsen Singapore
Façade Consultant: Arup Singapore
Main Contractor: China Construction (South Pacific) Development Co. Pte Ltd
TurfPave^® XD / VersiCell^® / VersiTank^® Installer: Nature Landscapes Pte Ltd

References
DP Architects, “Design in Print 14.1 – The Green-Well-Tech Issue”, Pg 63, 2023, via https://issuu.com/dparchitects/docs/dipvol14.1_gwt-20231230

BELYSA

To provide turf stabilisation along fire engine access way
To provide sub-surface drainage in planter boxes
To provide water retention and drainage on extensive green roof

Turf Stabilisation
TurfPave® XD positioned onto compacted sand laid over the compacted substrate of the path created to provide fire engine access way. Infilled with a sandy soil mix TurfPave® XD provides a stable and firm substrate for turf establishment along the access way. When not in use as an access way for fire-fighting operations or emergency purposes, the access pathway remains green and aesthetically pleasing and can withstand constant daily pedestrian traffic.
Rainwater readily infiltrates into the compacted sand base below and then slowly into the substrate before eventual discharge into the local drainage system. An impermeable access way, like an asphalt road on the other hand, will not allow run-off to infiltrate and thus contribute to run-off volumes and stormwater management problems.

Landscape Roof / Sub-surface Drainage
VersiCell® sub-surface drainage modules were installed to line the interior of planter boxes, at the base and also the sides, to provide a void beneath planting media to enable expeditious transport of excess water to drainage outlets to prevent waterlogging. A non-woven geotextile filter fabric over the drainage modules form a filter separation layer that allowed a 100mm sand layer to be spread on top followed by the soil media. Plants from shrubs to trees create the lush landscaped gardens amidst abundant water features.

Extensive Green Roof
VersiDrain® 25P drainage and water retention trays were positioned on the RC rooftops of the clubhouse and two other buildings. A geotextile filter fabric laid over the trays enabled EnviroMix®, a primarily inorganic planting media, to be placed for planting of selected drought-tolerant plants that drape over the sides to form attractive skirts around the rooftops.

85 Yishun Avenue 1, Singapore

To provide turf stabilization along fire engine access
To provide sub-surface drainage in planter boxes and beneath TurfPave along fire engine access

TurfPave®
TurfPave® XD is positioned onto compacted sand over a geotextile filter blanketing a sub-soil drainage base layer provided by VersiCell® placed directly over the constructed RC path. Infilled with a sandy soil mix the grass paver provides a firm substrate for turf establishment. The access ways created are green and aesthetically pleasing and provide a stable path for heavy fire engines and other emergency vehicles when needed. Rainwater infiltrates into the compacted base and is discharged via the drainage cell layer below, reducing excessive run-off and stormwater management problems which impermeable roads may pose.
VersiCell®
VersiCell® sub-surface drainage modules installed in planter boxes provide a void beneath the planting media to enable expeditious transport of excess water to drainage outlets for prevention of waterlogging. A non-woven geotextile filter fabric placed over the drainage modules allowed a 100mm sand layer to be spread on top followed by the soil media for plants from shrubs to small trees to be planted, and effectively turn the grounds of the condominium into landscaped gardens.

46 Marine Parade Road, Singapore

To provide turf stabilization along fire engine access
To provide sub-surface drainage in planter boxes
To provide green wall system for installation of green wall

Turf Stabilisation
TurfPave® XD grass pavers were positioned onto a compacted sand base layer over the compacted substrate of the access way. Infilled with a sandy soil mix, TurfPave® XD whilst providing a stable and firm substrate for turf establishment also creates the mandated access way with ability to bear high compressive loads necessary for passage of fire engines and other emergency vehicles.
The TurfPave access pathway remains green and aesthetically pleasing and is able to withstand constant daily pedestrian traffic. TurfPave does not retain water and thus allows rainwater to infiltrate into the compacted sand base beneath and then slowly into the substrate throughout the length of the green passageway.
An impermeable asphalt road, if installed instead, would repel rather than temporarily retained the rainwater in the substrate and therefore subsequently contribute to excessive run-off and associated stormwater management problems.

Landscape Roof / Sub-surface drainage
VersiCell® sub-surface drainage modules were installed in planter boxes to provide a void beneath the planting media to enable expeditious transport of excess water to drainage outlets. A non-woven geotextile filter fabric placed over the drainage modules allowed a 100mm sand layer to be spread on top followed by the soil media. The resultant lush landscaped grounds, planted with plants from shrubs to small trees, are well-drained and have minimal water-logging problems.

Green Wall
VersiWall® GM (VGM®) vertically greens the retaining wall facing the lift shaft of a glass-walled elevator positioned to convey residents from the underground car park to surface level. VGM® Modules were pre-planted, 6 to 8 weeks prior to installation, with plants selected for ability to thrive in the narrow space in front of the lift shaft which is subject to strong light exposure at the top of the wall and subdued light at the bottom.

Ang Mo Kio, SIngapore

– To provide green wall systems to establish vertical greenery on the walls of eight campus blocks of the College up to a height of 35 m. (VGM^®)
– To provide extensive green roof system to enable rooftop greening of three campus blocks. (VersiDrain^®25P)
– To provide media retention web to enable all-around planting on eight cone-like concrete structures at the atrium. (VersiWeb^®)

Green Wall

Elmich VGM^® Green Wall system was used to establish 35 m living walls on eight campus blocks. The system comprises Vertical Greening Modules (VGM^®) containing a geotextile bag filled with EnviroMix^®GW (a primarily inorganic lightweight planting media) anchored onto stainless steel pilasters. An automated irrigation system delivers water and nutrients directly to plant roots to ensure healthy plant growth.

The green walls together totalling 5,300 sq m is the largest vertical greenery installation at a single development in the world.

Elmich VGM^® Green Wall system is a highly engineered architectural living wall system utilising UV-stabilised plastic modules and stainless steel support brackets and pilasters that enable easy mounting and dismounting of VGMs during installation and maintenance. The system is certified to withstand wind uplift from various directions at 110km/h with no noticeable damage. Extremely versatile, the VGM modules were also easily adapted to accommodate the demanding design requirements of the project.

Extensive Green Roof

Elmich Extensive Green Roof system greened 2,400 sq m of rooftop space atop three campus blocks. VersiDrain^®25P drainage and water retention trays were placed directly over the waterproofing layer on the rooftop and a geotextile filter layer was laid over the trays to allow lightweight planting media to be placed on top of the trays. Pearl Grass was selected for its heat tolerance and low maintenance. An automated pop-up sprinkler irrigation system was installed to ensure that a rich jade-green is sustained on the rooftops.

Slope Stabilisation

Eight pyramid gardens were erected in the atrium using VersiWeb^®. The web panels were secured onto the eight structures using rebar anchors cast in the concrete. The cells were filled with planting media and a plastic mesh used to blanket the web to prevent media spillage. An automated irrigation system was installed to provide water and nutrients directly to the roots of the plants, whilst perforations in the VersiWeb^® cell walls allow the water to infiltrate from one cell to another, providing drainage and avoiding hydrostatic pressure buildup.

Marina Gardens Drive, Singapore

To provide the sub-surface drainage at the base of planter boxes situated above the underground car park at the entrance to the Gardens. (VersiCell^®)

To provide the slope stabilisation web on the slopes around the perimeter of the Flower Dome at the Gardens to protect and allow planting on the steep slopes. (VersiWeb^®)

Gardens by the Bay consists of three distinct waterfront gardens – Bay South, Bay East and Bay Central, set in the heart of Singapore’s new downtown Marina Bay, adjacent to the Marina Reservoir.
Spanning 101 hectares, Gardens by the Bay is an integral part of a strategic plan to transform Singapore from a ‘Garden City’ to a ‘City in a Garden’. The aim is to raise the quality of life by enhancing greenery and flora in the city. The Gardens have been designed with the environment in mind, adopting environmentally sustainable technologies and is intended to be a statement in sustainable engineering and energy efficiency.
VersiCell^® modules were installed at the base of the planter boxes above the underground car park to provide sub-surface drainage. The fully mature luscious trees and shrubs form a green horse-shoe shaped curtain surrounding the central coach and bus parking area above the underground car park.
The Flower Dome is the larger of the two conservatories at the Gardens, at 1.2 hectares. It replicates cool dry conditions and features permanent displays of plants found in the Mediterranean and semi-arid tropical regions. There is also a display field to enable flower shows and non-permanent displays to be exhibited within the Conservatory.
VersiWeb^® slope stabilisation webs installed over the perimeter slopes of the Flower Dome serve as slope stabilisers and also provide media containment to make planting on the steep slopes possible.

Bishan, Singapore

To provide turf stabilization for a large overflow parking cum emergency vehicle access area abutting existing impermeable asphalt car park at the park.

The area intended for the overflow parking cum emergency vehicle access was leveled and compacted with sand. TurfPave^® modules were then positioned onto the compacted sand and infilled with planting media to provide a stable and firm substrate for turf establishment.

The completed turf area is aesthetically pleasing and can withstand constant daily pedestrian traffic and permit occasional parking of vehicles when the permanent abutting asphalt car parking areas are insufficient to accommodate increased number of vehicles, especially when festivities and public functions are held at the park. The stabilized turf area can also support and allow access to emergency vehicles and fire engines when necessary.

The green and permeable overflow parking area created blends easily into the green park surroundings, does not contribute to UHIE and is also a stormwater management solution.

Wollongong Botanical Gardens – NSW Australia

To provide turf stabilization for overflow car parking areas.

TurfPave XD stabilises turf on car parking areas subjected to normal daily and heavy weekend usage. TurfPave XD distribute loads from pedestrian and vehicular traffic to the base course below minimising grass and root compaction. The interconnected cells of TurfPave XD with top and bottom notches allow roots to develop with minimal restriction resulting in a durable and stable grass surface.