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WaterproofingSector: Hotels & Hospitality
The Project
Project Details
The St George Hospital Stage 2 Redevelopment involved the construction of a new seven-level Acute Services Building on top of the existing operational 24-hour emergency department. This $227 million project features a nine-level Acute Services Building incorporating a 52-bed intensive care unit and high dependency unit, cardiac catheterisation unit, eight operating theatres, 128 inpatient beds, and a rooftop helipad. The complex construction sequence required waterproofing solutions capable of protecting critical healthcare infrastructure while maintaining continuous emergency department operations below the new tower.
To meet the highest performance and sustainability standards, the project focused on:
- Delivering reliable waterproofing protection for construction above an operational 24-hour emergency department without disrupting critical healthcare services
- Providing low-VOC, environmentally responsible systems suitable for sensitive healthcare environments including intensive care units and operating theatres
- Ensuring long-term durability for specialised applications including rooftop helipad surfaces subject to extreme loading and weather exposure
Envirosystems Solution
Envirosystems was specified for the St George Hospital Stage 2 Redevelopment, delivering waterproofing solutions across the complex seven-level construction above the operational emergency department. The specification addressed diverse healthcare applications including the intensive care unit, high dependency unit, cardiac catheterisation unit, operating theatres, inpatient areas and the rooftop helipad.
The Envirosystems products provided reliable, environmentally responsible waterproofing protection suited to the demanding requirements of acute care infrastructure. The systems ensured appropriate performance standards for sensitive medical environments while supporting the hospital’s continued emergency operations throughout the challenging construction sequence, contributing to the successful delivery of expanded healthcare capacity for the St George community.
Products Used
Enviro Prime P2
- Very low VOC
- Bonds to most metal surfaces
- Excellent bond to a wide variety of substrates
The Project
Project Details
Crown Towers Perth represents the largest hotel constructed in Western Australia, incorporating 500 luxury rooms, suites and villas within a world-class resort complex spanning over 40,000m². The hotel tower consists of 453 standard rooms and 47 villa and suite rooms with high-end gaming and ultra-lounge spaces. A new three-level podium links the existing Crown Metropol hotel complex with Crown Towers, containing a new hotel reception, bars, restaurants, ballrooms and conference facilities.
To meet the highest performance and sustainability standards, the project focused on:
- Delivering robust below-grade waterproofing and gas mitigation protection across the entire 40,000m² building footprint
- Providing ultra-fast curing systems to optimise construction scheduling and enable rapid return to service across multiple work zones
- Ensuring long-term chemical resistance and wear performance suited to a luxury hospitality environment with high operational demands
Envirosystems Solution
Envirosystems selected Enviro HP1600 to use across 40,000m² of the Crown Towers Perth project, deploying this heavy-duty spray-applied polyurea system for its proven track record in waterproofing and gas mitigation applications. As a two-component spray-applied system, Enviro HP1600 optimises the fast-setting properties of polyurea technology, allowing areas to be returned to service quickly and supporting efficient construction sequencing across the extensive project footprint.
Enviro HP1600 exhibits excellent waterproofing capabilities combined with low VOC content of 13g/L, high wear resistance and chemical resistance essential for hospitality infrastructure. Installed with the custom-designed Envirosystems gas venting system, Enviro HP1600 provided comprehensive protection across the entire Crown Towers development. As part of the Enviro HP Series range of premium spray-applied polyurethane and polyurea elastomers, the system delivers ultra-fast curing and superior waterproofing properties backed by extended warranties when applied by accredited applicators.
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Products Used
The Project
Project Details
The 14-level hospital at Westmead serves as the centrepiece of the New South Wales Government’s $1 billion-plus Westmead Redevelopment. Designed by HDR Rice Daubney, this comprehensive healthcare facility features two new emergency departments – one for adults and one for children with dedicated entry points, 20 new operating and interventional suites with highly specialised technology and equipment, a new Cardiac Comprehensive Care Centre, over 300 new patient rooms, and extensive education, training and research areas and facilities. The scale and complexity of this landmark healthcare project demanded waterproofing solutions capable of meeting stringent hospital standards across diverse applications.
To meet the highest performance and sustainability standards, the project focused on:
- Delivering reliable below-grade waterproofing protection for lift pits and basement structures supporting critical healthcare infrastructure
- Providing vapour-permeable membrane systems with excellent freeze-thaw durability suited to long-term healthcare facility requirements
- Ensuring high-quality, flexible waterproofing with outstanding adhesion properties for concrete, masonry and natural stone substrates throughout the complex
Envirosystems Solution
Envirosystems Hydrostatic 1 solution was installed during the early works stage to the lift pits at Westmead Hospital. Based on advanced cross-linking polymer technology, Enviro Hydrostatic 1 is a single-component flexible polymer-modified cementitious membrane. The addition of water to the Hydrostatic 1 powder forms a high-quality liquid membrane system designed for application over concrete, masonry and natural stone substrates.
The cured film provides a watertight membrane that remains permeable to vapour diffusion, offering excellent freeze-thaw durability and outstanding adhesion properties essential for below-grade applications. This system proved ideally suited to the demanding requirements of the Westmead Hospital Redevelopment, providing reliable waterproofing protection for critical infrastructure supporting the 14-level healthcare facility and its specialised medical services.
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Products Used
The Project
Project Details
The $790 million redevelopment transformed Liverpool Hospital into a world-class medical hub and one of New South Wales’ leading health precincts. This comprehensive project included the reconfiguration of existing car parks, a new kitchen facility, a new mortuary, helipad upgrades and a temporary education facility to enable continuous hospital operations throughout construction. The Liverpool Health and Academic Precinct will feature approximately 900 beds (an increase of over 20 per cent), significant expansion in ambulatory services with almost double the chemotherapy treatment spaces, expanded women’s and children’s services including 16 new birthing suites and 50 NICU and Special Care Nursery beds, a larger emergency department and intensive care unit, additional theatres, and a new multi-storey car park.
To meet the highest performance and sustainability standards, the project focused on:
- Delivering low-VOC, environmentally responsible waterproofing systems suitable for sensitive healthcare environments with strict standards
- Providing reliable protection across diverse applications including mortuary facilities, kitchen areas, helipad surfaces and expanded clinical spaces
- Ensuring long-term durability and performance for critical healthcare infrastructure serving one of Sydney’s fastest-growing regions
Envirosystems Solution
Envirosystems was used for the Liverpool Hospital redevelopment, delivering waterproofing solutions across the early works phase and preparing for the main construction programme. The specification addressed diverse applications including car park reconfigurations, the new kitchen facility, mortuary, helipad upgrades and temporary education facilities.
The Envirosystems products provided reliable, environmentally responsible waterproofing protection suited to the demanding requirements of healthcare infrastructure. The systems ensured appropriate performance standards for sensitive medical environments while supporting the hospital’s continued operations throughout the staged transformation into a world-class health and academic precinct serving the Liverpool community and broader region.
Products Used
Enviro Prime P2
- Very low VOC
- Bonds to most metal surfaces
- Excellent bond to a wide variety of substrates
Enviro 900
- Tough aliphatic finish resists UV, abrasion, and weathering
- Designed for high-traffic and exposed commercial applications
- Low VOC, Fast curing and Flexible
The Project
Project Details
This project involved the complete reconstruction of an outdated 20-storey 1970s office building, transforming it into a signature development in the heart of Sydney’s CBD. The existing building was stripped back and rebuilt to include a new high-performing, environmentally responsive facade system, setting a world-class standard for energy efficiency in commercial buildings. The development encompasses A-grade office space, premium retail and basement car parking, and won an MBA award for Site Safety Commercial Projects $50 million and over.
To meet the highest performance and sustainability standards, the project focused on:
- Delivering low-VOC, environmentally responsible waterproofing systems aligned with the building’s world-class energy efficiency and sustainability credentials
- Providing specialised solutions across diverse applications including green roofs, portable water tanks, wet areas, plant rooms and blindside membranes
- Ensuring UV-resistant and root-resistant systems capable of protecting complex building elements in a premium CBD development
Envirosystems Solution
Envirosystems was selected as the supplier of low-VOC waterproofing membrane systems for the reconstruction of 20 Martin Place, adding to the list of high-profile tier-one developments incorporating Envirosystems technology. Products were selected based on proven track records in similar projects and the environmentally friendly nature of the solutions, ensuring alignment with the building’s sustainability objectives.
The comprehensive list of products included Enviro 200P Ultra for wet area walls, Enviro Epoxy RC for pump room floors, plant rooms and sumps and Enviro HP1600 for blindside membrane applications. These Enviro products proved to be high-quality, low-risk alternatives to other waterproofing systems on the market, delivering reliable protection across the diverse applications of this critical CBD infrastructure.
Products Used
The Project
Project Details
The Sydney Harbour Bridge stands as one of the world’s most iconic structures, with a 2km conjoined cycle and pathway spanning both sides of the bridge to link Sydney’s central business district with the Northern suburbs. This critical pedestrian and cycling infrastructure required comprehensive restoration work to address cracking and deterioration while maintaining public access to this heritage landmark. The project demanded high-performance waterproofing capable of protecting the structure while withstanding constant pedestrian and cyclist traffic in a highly exposed harbour environment.
To meet the highest performance and sustainability standards, the project focused on:
- Delivering durable crack repair and waterproofing protection for deteriorated walkway and cycleway surfaces on a heritage-listed structure
- Providing UV-resistant, trafficable systems capable of withstanding continuous pedestrian and cyclist traffic in exposed harbour conditions
- Ensuring shortened construction periods to minimise disruption to this heavily utilised public infrastructure linking key Sydney precincts
Envirosystems Solution
Envirosystems was contracted to repair and reinstate the cracked walkway and cycleway surfaces on the Sydney Harbour Bridge main deck, and to prepare and apply a UV-resistant trafficable waterproofing system to the exposed areas. The comprehensive specification detailed crack repair procedures, substrate preparation, priming and installation of the Envirosystems Trafficable Waterproofing Membrane System.
The Enviro Trafficable System represents an innovative solution within the Envirosystems product range, providing a hard-wearing, UV-stable waterproof membrane with inherent slip resistance. Capable of withstanding full vehicular traffic, the system proved uniquely suited to this external waterproofing application on an iconic landmark structure. The system’s performance characteristics enabled a shortened construction period, minimising disruption to the thousands of pedestrians and cyclists who traverse the bridge daily while delivering long-term protection for this heritage infrastructur
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