Collyer Quay

Collyer Quay

Location

Collyer Quay, Singapore

Specifications

To provide the Green Roof System to enable planting on the roof of the activity shed cum shelter at the pier.

Solution

Elmich Green Roof was chosen because it is light and easy to install.

 

VersiDrain® 25P, drainage and water retention trays, were installed on the roof and covered over with a filter fabric to enable a lightweight, primarily soil-less inorganic planting media to be installed on the trays. The plants used were carefully selected for their drought-tolerance and also for colour to create the flowing pattern on the roof.

 

An automated irrigation system was incorporated to aid in initial plant establishment and also for subsequent regular delivery of water for irrigation.

 

The green roof of the shed provides thermal insulation that keeps the activity space below cool. Additionally, the green roof enhances urban aesthetics, presenting guests from the adjacent hotel and occupants of neighbouring skyscrapers to enjoy the view of a soothing planted roof instead of an exposed hot concrete roof. Furthermore, in the highly urbanised context of the Marina Bay, the green roof helps to mitigate urban heat island effect and keep surrounding ambient temperature down.

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Choa Chu Kang Polyclinic

Location

Choa Chu Kang Polyclinic – Singapore

Specifications

To provide the Green Wall System to enable planting on both sides of a wall along the corridor of the Polyclinic’s reception area, one side facing the reception area in an indoor environment, and the other, facing the landscaped courtyard totaling 75 m2 , and a second green wall of 8 m2 at the courtyard on the 3rd floor.

Solution

Free-standing steel frameworks were constructed in between pillars along the reception area. Anchoring pilasters were then installed on both sides of the framework as well as on the pillars in between to enable the creation of a continuous green wall. At the 3rd floor, anchoring pilasters were installed directly onto the wall at the courtyard. VGMs, comprising a geotextile bag filled with soil-less lightweight planting media, were planted in a nursery environment 3 months before intended installation to ensure firm establishment of plants. Metal support frames were attached to the pre-planted VGMs on site, before mounting the modules onto the pilasters. Automated drip irrigation and fertilization systems were incorporated for both walls. The Elmich Green Wall system allows individual modules to be removed and remounted, making maintenance and replacement of modules and/or plants easy.

The green walls provide a pleasing and therapeutic green ambience for patients and visitors to the Polyclinic.

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One North Residences

Location

One North Residences – Singapore

Specifications

To provide a modular green wall system to enable vertical greening of 2 separate high walls totaling 50 m2 located at the 8th floor of the condominium.

Solution

Stainless steel parallel support beams were installed onto the walls on which anchoring pilasters were welded. To allow adequate time for plant establishment, Vertical Greening Modules (VGMs), comprising a geotextile bag filled with soil-less lightweight planting media were pre-planted in a nursery environment 3 months prior to installation. The VGMs were then encased in metal support frames on-site and mounted onto the pilasters, followed by an automated drip irrigation and fertilisation systems, and installed for each of the walls. The Elmich modular system allows easy removal and remounting of individual VGM for maintenance or replacement whenever necessary.

The green walls grace both sides of the area fronting the gymnasium and the lounge and recreational area and provide a pleasant cool ambience for residents.

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Marina Bay Sands Promenade

Location

Marina Bay Sands Waterfront Promenade – Singapore

Specifications

To provide sub-surface drainage beneath deep planter trenches along the waterfront promenade.

Solution

VersiCell drainage modules were installed to provide a drainage cavity beneath the planting media in the deep planter trenches along the Waterfront Promenade. This facilitates the efficient drainage of excess subsoil water and prevents water-logging within the trenches which also serve to hide large pipes and services. The drainage modules also offer a protection layer above the waterproofing membrane, provided by a fully adhered layer of Avalon PVC/EVA terpolymer membrane.

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15 Joan Road

Location

15 Joan Road – Singapore

Specifications

To provide the Green Roof system to facilitate planting on the existing metal roof tops of the main building as well as the adjacent buildings at this address.

Solution

Elmich Green Roof was chosen because it is light and easy to install.
VersiCell structural drainage/insulation cells were used to fill the space between the metal ridges of the metal roofs, providing a ventilation layer and also creating a level flat surface. A separation sheet and geotextile was laid on top followed by installation of VersiDrain 25P drainage and water retention trays.

A filter fabric is positioned over the trays and EnviroMix GR, a lightweight and primarily inorganic planting media, installed on top for the planting of selected drought-tolerant plants.
An automated irrigation system is incorporated on the roofs for use during the initial plant establishment and to deliver water in prolonged periods of drought.

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W Residences @ Sentosa Cove.

Location

W Residences @ Sentosa Cove – Singapore

Specifications

To provide pedestal support for installation of pavers at rooftop Jacuzzi terraces.

Solution

VersiPave pedestals with extenders added to bring them to the appropriate required heights were installed to support pavers at the rooftop Jacuzzi terraces. VersiPave pedestals have four quadrants, each with individually adjustable chocks that keep paved surfaces level even when paver thickness are irregular. The raised pavers eliminate efflorescence, allow services to be conveniently hidden, as well as provide thermal and acoustic insulation. Unwanted water freely drains through the gaps between pavers enabling the paver surfaces to dry out quickly on the terraces.

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HDB Car Park Roof @ 309B Ang Mo Kio Avenue 1 – Singapore

Location

HDB Car Park Roof @ 309B Ang Mo Kio Avenue 1 – Singapore

Specifications

To provide the green roof system including the lightweight planting media to convert the roof of the existing car park into an accessible and aesthetically pleasing green amenity area.

Solution

The green roof uses VersiDrain 25P to provide water retention and drainage, and a geotextile filter fabric to retain the lightweight planting media.

 

VersiDrain 25P keeps the manicured lawn on the roof well irrigated and thriving during dry spells, through delivery of stored water via evaporation and capillary action. It also prevents water logging after heavy rain by facilitating drainage of excess water. The green roof also provides thermal insulation, reducing the transference of heat from the roof to the car park level immediately below. The trays also offer protection to the waterproofing membrane, a root-resistant fully adhered layer of Evalon PVC/EVA terpolymer membrane, prolonging its serviceable life.

 

The green roof enhances urban aesthetics as residents in the vicinity get to enjoy the view of a cool soothing green roof instead of an exposed hot concrete roof. Additionally, in a highly urbanised HDB estate, the green roof mitigates urban heat island effect to keep the surrounding ambient temperature down.

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United World College of South East Asia

Location

United World College of South East Asia – Singapore

Specifications

To provide waterproofing membrane protection prior to casting and under-screed drainage to allow entrapped water in the screed to discharge at the sports courts of the college on the roof of the building housing the bus parking bays.

Solution

VersiDrain 6P sheets, installed prior to casting over the waterproofing membrane, offers immediate protection against inadvertent membrane penetration or damage due to installation of various services at the promenade. Waterproofing is provided by a fully adhered layer of Avalon PVC/EVA terpolymer membrane. VersiDrain 6P is covered with geotextile fabric followed by a reinforcing wire mesh on top.

 

The capillary break created by the sheets between structural slab and topping screed prevents water and salts in the screed from migrating upward and also releases hydro-static pressure by allowing the trapped water and dissolved salts to discharge, minimising efflorescence and possibility of cracking on the surface.

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Marina Bay Sands Promenade.

Location

Marina Bay Sands Waterfront Promenade – Singapore

Specifications

To provide waterproofing membrane protection prior to casting and installation of granite pavers along the Waterfront Promenade and facilitate under-screed drainage to allow entrapped water in the screed to discharge.

Solution

VersiDrain 6P sheets, installed prior to casting over the waterproofing membrane, offers immediate protection against inadvertent membrane penetration or damage due to installation of various services at the promenade. Waterproofing is provided by a fully adhered layer of Evalon PVC/EVA terpolymer membrane. VersiDrain 6P is covered with geotextile fabric followed by a reinforcing wire mesh on top.

 

The capillary break created by the sheets between structural slab and topping screed prevents water and salts in the screed from migrating upward and also releases hydro-static pressure by allowing the trapped water and dissolved salts to discharge, minimising efflorescence and possibility of cracking on the surface.

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VivoCity

Location

VivoCity – Singapore

Specifications

To provide sub-surface drainage beneath planted areas and also waterproofing membrane protection on the roof.

Solution

VersiCell drainage modules were installed to provide the cavity beneath the landscape roof to facilitate efficient sub-surface drainage. An open surface design and high internal void enables VersiCell to rapidly capture and transport excess water preventing the planted areas from becoming waterlogged.

 

VersiCell modules interlock to form large panels ensuring that they stay securely in place, especially necessary for the larger areas. It also provides a protection layer for the waterproofing membrane, prolonging its serviceable life.
The landscape roof incorporating a tropical island resort-like feel with many coconut trees has played a pivotal role in helping VivoCity to win the inaugural SIA-NParks Skyrise Greenery Award.

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