Singapore

To provide the Modular Green Wall system for the installation of a 85 m² Green Wall on the 35.4 m long wave-like RC wall fronting the main lobby of the Hotel, as part of its major upgrading and renovations.

The modular Elmich VGM Green Wall system was installed on the RC wall erected along the driveway fronting the main lobby of the Hotel. The 2.4m high wall serves to conceal the driveway leading to the Hotel’s underground car park on the other side of the wall. To account for the wall’s slightly meandering design, pilasters were spaced accordingly to allow mounting of the modular VGM modules along the wave-like curves of the 35.4m long wall. As the curves are very gentle, the slightly wider gaps between vertical rows of modules along the convex portions of the wall do not pose a problem as they are soon covered up when the plants are established.

The refreshing living wall serves as a welcome and invitation to guests of the Hotel from all over the world to discover the hotel’s new and exciting facilities after its extensive makeover.

University Town, National University of Singapore

To provide both intensive and extensive roof systems to enable the establishment of an accessible landscape roof at the lower deck and an inaccessible extensive green roof at the upper deck on the roof of the Education Resource Centre of University Town.

 Landscape Roof, Sub-surface Drainage
VersiCell^® drainage modules were installed directly on the waterproofing membrane to provide a drainage cavity beneath a geotextile filter fabric layer and the planting soil above. VersiCell^® with high internal void and an open surface design is able to rapidly capture and transport excess water, preventing the green areas on the roof from becoming waterlogged. The drainage modules also provide a protection layer for the waterproofing membrane, prolonging its serviceable life.
Extensive Green Roof
VersiDrain^® 25P drainage and water retention trays were installed directly over the waterproofing membrane. Geotextile filter fabric was then laid over the VersiDrain^® 25P trays and a lightweight inorganic planting media, EnviroMix^® GR, spread on top for in-situ planting of various selected drought-tolerant plant species arranged in attractive patterns. Water retained by the water reservoirs of the trays during wet periods is returned to the planting media by capillary action during dry spells and drawn upon by the plants to sustain vigorous and healthy growth
From their windows, students residing in the nearby Graduate Residences enjoy a refreshing, cool and aesthetically pleasing layered green roof instead of otherwise bare concrete roofs.

National University Health System, Singapore

To provide the Green Wall System to enable planting on the wall at consecutive levels, from the 2nd storey up to the 4th storey, at the centre atrium of the multi-storey car park of the tower block.

A steel framework was erected incorporating a “swing-door” system that allows pairs of adjacent vertical panels of VGM^® Planting modules to open/swing inwards. This enables accessibility to the living wall from the narrow corridor behind it, eliminating the need for erection of scaffolding to enable access to the face of the high 5-storey wall whenever maintenance is required. The ability of the panels to swing like a door, not only offers enhanced safety but is also cost effective for the long term maintenance of the high living wall.

Each VGM^® Planting Module contains a geotextile bag filled with soil-less lightweight planting media. Modules were pre-planted in a nursery environment 3 months prior to installation for firm establishment and vertical orientation of the selected green wall plants to take place. On site, each module was reinforced with steel brackets and the corners bolted directly to the framework. An irrigation system was incorporated with its piping configured to allow the swing action of the hinged panels.

The mural-like living wall, “painting” the consecutive walls from the 2nd storey to the 5th storey of the car park, presents a pleasing and therapeutic welcome for patients and visitors to the building.

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.

Nanyang Technological University, Singapore

To provide pedestal support for installation of 2 wooden decking area at the centre atrium of the building.

VersiJack^® pedestals were used to support bearers to construct the wooden landings at the foot of the stairways leading to the open skylit central courtyard of the building. Bearer holders secured timber joist to the pedestals and slope compensators allowed slope adjustments up to 5%.

The attractive raised wooden decking, at both ends of the atrium, allows services to be hidden and provide the drainage necessary for the decking to dry out quickly after rain.

Bukit Panjang, Singapore

To provide underground tank facilities for infiltration and filtration of stormwater before discharge into the local storm drain network in the sports park.

Pits were excavated to specification at pre-determined locations in the compound of the sports park. Each pit is compacted and leveled with a layer of coarse sand and lined with geotextile. VersiTank^® units assembled on-site were then positioned in the pits and covered over with geotextile lapped and sealed at all joints to envelope each tank.

The geotextile filter fabric allows rainwater to pass or percolate into the tank below but ensures that solids, including mud and clay, are filtered and prevented from entering. Water that percolate into the tank, either slowly infiltrates into the surrounding substrate or is channeled into connected pipes linked to the immediate drainage network for discharge. The sides and the top of the pit is backfilled with coarse sand and topped with regular soil for establishment of landscape plants, completing the VersiTank installation.

The underground tank installations eliminate the need for visible concrete drains on the surface.

Punggol, SIngapore

To provide facility for filtration and infiltration of stormwater before its discharge into the local storm drain network and also eliminate requirement for visible surface concrete drains at the exercise stations along the Riverside Walk. 

Linear pits were excavated at pre-determined locations along the riverside according to specifications. The base of each pit is compacted and leveled with a layer of coarse sand and lined with geotextile.VersiTank^® units, assembled on-site, were then installed in the pits and covered over with geotextile lapped and sealed at all joints to envelope each tank.

The filter provided by the geotextile fabric allows rainwater to pass readily through into the tank below but ensures that solids, including mud and clay, are filtered and prevented from entering. Water entering the tank, either slowly infiltrates into the surrounding substrate or is channeled to connected pipes and discharged directly into the immediate drainage network. The sides of the pit and also the top of the tank are backfilled with coarse sand, completing the installation and creating dry sand pit areas where exercise equipment are installed.

The dry ponds eliminate the need for an impermeable concrete base for the installation of the exercise equipment at the exercise stations, allowing both the stations and equipment installed to merge seamlessly into the linear park along the river.

Punggol Lodge, Singapore

To provide underground tank facilities for infiltration and filtration of stormwater before discharge into the local storm drain network and to create rain garden dry pond features at the foot of 2 HDB Apartment blocks in Punggol Lodge 

Large pits were excavated to specification at the foot of the 2 HDB apartment blocks. The base of each pit is compacted and leveled with a layer of coarse sand and lined with geotextile. VersiTank^® units were then assembled on-site and positioned in the pits and covered over with geotextile lapped and sealed at all joints to envelope each tank installed.

The geotextile filter fabric allows rainwater to readily pass or percolate through into the tank but ensures that solids, including mud and clay, are filtered and prevented from entering the tanks below. Water that percolate into the tank, either slowly infiltrates into the surrounding substrate or is channeled into connected pipes linked to the immediate drainage network for the clear filtered stormwater to be discharged. The sides and the top of the pits are backfilled with coarse sand, completing the dry pond features.

The areas surrounding the dry ponds are landscaped, creating rain garden features which provide a refreshing and therapeutic respite for residents in the immediate vicinity returning home from a hard day at work.

Punggol, Singapore

To provide percolation and infiltration tanks to facilitate filtration and infiltration of stormwater before it is discharged into the local storm drain network and eliminate requirement for visible surface concrete drains to facilitate drainage in the children’s play areas at the Waterfront Promenade.

Large pits were excavated within the designated areas where playground features are to be installed in the compound of the waterfront park. The bottom of each pit is compacted and leveled with a layer of coarse sand and lined with geotextile.

VersiTank^® units assembled on-site were then positioned in the pits and covered over with geotextile lapped and sealed at all joints to envelope each tank. The geotextile filter fabric permits rainwater to readily pass through and enter the tank below but ensures that solids, including mud and clay, are filtered and prevented from entering. Water which has percolated through into the tank either slowly infiltrates into the surrounding substrate or is channeled to connected pipes linked directly to the immediate drainage network for discharge.

The sides of the pits, the tops of the tanks and the area within the confines of the raised boundary of each playground shape are backfilled with coarse sand. The sand pits or dry ponds provide the permeable ground to accommodate playground equipment which includes slides and mini obstacles, swinging-planks and cargo nets, designed to bring out spirit of adventure and fun. The permeable sand dry out quickly and provide a soft and safe landing in inevitable falls and boisterous play.

Sentosa, Singapore

To provide slope stabilisation for plant media confinement to enable planting on the mushroom-shaped roof over the gymnasium and also on the steep slope of another roof of the seafront condominium.

VersiDrain^® 25P water retention and drainage trays, facilitating water retention and serving as a base drainage layer, were installed and blanketed over with a layer of geotextile fabric. VersiWeb^® panels were then installed with anchoring to the roof facilitated by strong metal rods embedded in the concrete. The honeycombed cells of VersiWeb^® contain and confine the planting media on which a carpet of Sedum is planted. VersiWeb^® uniformly distributes weight-bearing loads and prevents planting media and plants from being dislodged and sliding down the sloping roofs. Perforations in the VersiWeb^® cell walls facilitate inter-cell drainage, preventing hydrostatic build-up.

The resultant green roofs are not only aesthetically pleasing but are also an effective shield against harmful UV rays from the intense tropical sun. The crown of vegetation protects and prolongs the lifespan of the waterproofing membranes on the roofs and also keeps the interior living spaces beneath them cool and comfortable.