HDB Car Park Roof @ 18 Holland Drive – Singapore

To provide the intensive roof system to enable the establishment of a landscape roof on the roof of the car park.

VersiCell drainage modules were installed 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, a root-resistant fully adhered layer of Evalon PVC/EVA terpolymer membrane, prolonging its serviceable life.
Both intensive and extensive green roofs were installed side-by-side on this HDB car park roof top making it uniquely attractive. Residents in the vicinity enjoy a cool and aesthetically pleasing green roof instead of a hot exposed concrete roof.
The green roofs mitigate urban heat island effect, keep surrounding ambient temperature down and reduce transference of heat to the car park level immediately below. Additionally, they also offer other environmental benefits, by acting as a chemical, biological and particulate filter, filtering stormwater runoff at source, and helping to alleviate downstream problems associated with heavy downpours.

Marina Bay Waterfront Promenade – Singapore

To provide sub-surface drainage beneath planted areas along the waterfront promenade.

VersiCell drainage modules were installed to provide a drainage cavity beneath the planting media in the planted areas and planter boxes along the Waterfront Promenade. This facilitates the efficient drainage of excess subsoil water and prevents waterlogging especially in heavy rainfall.

Raffles Dubai Hotel – Dubai UAE

To provide sub-soil drainage for the landscape roof garden of the hotel complex.

VersiCell sub-soil drainage cells were positioned over the prepared grounds of the roof followed by a geotextile filter fabric layer and then the planting soil. The cavity provided by the drainage cells facilitates the efficient drainage of water preventing water-logging and promoting healthy plant growth in the elaborate roof garden of the Hotel.

Minter Ellison Building – Canberra ACT Australia

To provide efficient high compressive strength drainage on a high retaining basement walls.

VersiCell protected the waterproofing membrane on large basement walls, easily withstood high back-filling loads and provides efficient drainage on basement and retaining walls.

Republic Polytechnic, Singapore

To provide waterproofing membrane protection and efficient sub-soil drainage under the landscaped roof areas on the 20ha site of the campus.

VersiCell lightweight interlocking modules, positioned over the waterproofing membrane, offers immediate protection for the membrane whilst other installation works were carried out. High compressive strength of the modules made it possible for light machinery to be placed on top without compromising the membrane below. A geotextile filter fabric is installed over the VersiCell and planting soil placed on top. The drainage cells provide the necessary cavity beneath the planted areas to efficiently discharge excess sub-soil water and prevent water-logging on the landscape roof. The resultant lush greenery on the campus grounds has earned the Polytechnic the nickname of “Campus in the Park”.

Khoo Teck Puat Hospital – Singapore

To provide waterproofing membrane protection prior to casting and under-screed drainage to allow entrapped water in the screed to discharge and prevent moisture and salts below the sheet from migrating to the surface.

VersiDrain 6P sheets, installed prior to casting over the waterproofing membrane, offer immediate protection against inadvertent membrane penetration or damage due to installation of various services on the roof. Insulation boards were positioned over VersiDrain 6P and 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 minimising efflorescence and also reduces possibility of cracking on the surface.

School of Biological Science, Nanyang Technological University – Singapore

To provide under-screed drainage and a capillary break preventing moisture and salts below the sheet from migrating to the surface.

VersiDrain 6P sheets were installed over structural slab prior to application of the topping screed and installation of the surface decorative pavers. The sheets positioned between structural slab and topping screed prevents water and salts in the screed from migrating upward via capillary action minimising efflorescence on the pavers above.

Tropical Marine & Science Institute – Singapore

To provide under-screed drainage to allow entrapped water in the screed to discharge as well as protect waterproofing membrane.

VersiDrain 6P sheets were installed over the waterproofing membrane offering immediate membrane protection prior to casting. Insulation boards were positioned over VersiDrain 6P and covered with geotextile fabric followed by a reinforcing wire mesh on top. Efflorescence is minimised as the drainage sheets positioned between structural slab and topping screed prevent water and salts in the screed from migrating upward via capillary action and crystallizing on the surface.

Meridian Junior College – Singapore

To provide effective sub-soil drainage on a sports field.

VersiCell drainage modules were interlocked and placed vertically in a herringbone layout design. VersiCell rapidly drains this large sports field even after torrential rainfall and is more effective than perforated sub-soil pipes that are normally used for such applications.

Constitution Hill Retirement Village – Sydney NSW Australia

To provide efficient drainage in planter box areas.

VersiCell protected the waterproofing membrane, the lightweight panels were easy to install and provide highly efficient drainage in planter box areas.