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.

Cove Drive, Sentosa – Singapore

To provide slope stabilisation for plant media confinement to enable planting on the pitched and horizontal rooftop of the seaside bungalow.

Water retention and a base drainage layer is provided by VersiDrain^® 25P water retention and drainage trays. A geotextile filter fabric is then installed blanketing the water retention and drainage trays.

For added security and strength, VersiWeb^® panels are installed straddling the horizontal rooftop and the steep slope of the concrete roof to be planted. The honeycombed cells of VersiWeb^® contain and confine the planting media for the establishment of a refreshing crown of grass. VersiWeb^® uniformly distributes weight-bearing loads and prevents planting media and the carpet of grass from being dislodged and sliding down the steep sloping roof. Perforations in the cell walls of VersiWeb^® facilitate inter-cell drainage and prevent hydrostatic build-up.

Besides setting the bungalow apart from its immediate neighbours, the resultant green slopes are aesthetically pleasing and form an effective shield against the intense tropical sun, helping to protect and prolong lifespan of the waterproofing on the roof. The green roof also helps to keep interior living spaces cool and surrounding ambient temperatures down, mitigating UHIE.

Cornwall Gardens, Singapore

To provide paver support and conceal services in a reflective pool feature at the front façade of the residential bungalow.

VersiPave^® pedestals with height raised with 2 extenders were positioned in the shallow side of the pool. Height adjustments and compensation for fall in the floor slab were easily carried out with the aid of individually adjustable chocks at each quadrant of the pedestals. Underwater lights inserted into the centre hollow core of VersiPave^® pedestals placed at strategic locations in the pond provide illumination beneath water level. Pipes and services are effectively concealed below the raised pavers. VersiJack^® pedestals support the pavers at the deep end of the pool which houses the pump and filter system. To enable the submissible lights to be installed at the deep end of the pond, VersiPave^® paver supports were secured to the top of VersiJack^® pedestals with connectors.

The reflective pool accentuated by a bonsai tree at the centre and a green wall backdrop creates a therapeutic zen-like ambience and oriental feel.

Hospital Drive, Singapore General Hospital

To provide support for installation of pavers
To provide sub-surface drainage modules to facilitate efficient drainage in planter boxes

VersiJack^®
VersiJack^® pedestals were extended to appropriate heights and positioned directly over the floor slab to support heavy 600 x 600 x 50mm pavers. A screw-adjust and an integrated locking ring system allowed easy height adjustments and confirmed heights to be secured. Slope Correctors allowed compensation for any slope to fall in the floor slab to facilitate drainage beneath the raised pavers whilst Spacer Tabs enabled constant gaps to be maintained between the pavers. Rubber shims were placed over the Spacer Tabs on the pedestal tops both to make minor height adjustments and provide insulation to reduce vibration and sound transfer. The raised pavers create attractive safe, dry and level open spaces and pathways at the hospital’s landscaped sky gardens.
VersiCell^®
VersiCell^® sub-surface drainage modules were installed at the base and also the sides of planter boxes at the sky gardens. Healthy plant growth is sustained by providing the necessary drainage to prevent waterlogging and ponding in the planter boxes. A geotextile was laid over the modules and 100mm of sand placed on top before infill of approved soil media for planting.
The planter boxes and paved open areas and pathways in the sky gardens create a greener and cooler new heart centre with a therapeutic environment.