Triflex JWS for roof terrace
Key Facts
Location: Singapore
System: Triflex JWS
Completion: January 2023
Area: 40 ML
Authorised Contractor: Hong Seng Sing Pte Ltd
Waterproofing Solution for NEX Mall, Singapore
In January 2023, NEX Mall in Singapore faced a significant waterproofing issue with its terrace walkway. Triflex Singapore was approached to deliver a durable solution, following multiple failed attempts with other methods, including polyurethane (PU) injections. The mall required a system that could address leaks in the expansion joint and interfacing wall without disrupting daily operations.
The Challenge
The terrace walkway’s expansion joint displayed defects, particularly at the interfacing wall. Previous waterproofing efforts failed due to the absence of reinforcement in the original cementitious layer. The structure required a durable solution capable of managing the building’s expansion and maintaining adhesion to existing materials, such as PVC membranes.
Initial site investigations included coring tests and adhesion analysis, which provided insights into the existing waterproofing system's condition and the optimal approach to sealing the expansion joint.
The Solution
After thorough site analysis and collaboration with authorized contractors Hon Seng Sing Pte Ltd, the Triflex JWS Reverse system was selected for its strong adhesion and crack-bridging capabilities. The system was designed to withstand the expansion of the building while providing seamless integration with the existing PVC membrane.
For additional reinforcement, Triflex ProDetail was applied to the turn-up walls, creating a complete waterproofing solution that sealed intricate areas prone to leakage.
The installation process began with careful surface preparation and the application of Triflex JWS Reverse to waterproof the terrace’s expansion joint. The system’s ability to integrate seamlessly with the existing PVC membrane provided a robust and flexible waterproofing layer. The project was completed swiftly, ensuring minimal disruption to NEX Mall’s daily operations.
Triflex JWS, version 2
System Properties
Fully reinforced waterproofing system with a polymethyl methacrylate (PMMA) base for waterproofing construction, controlled crack, expansion and settlement joints on waterproof-concrete components.
Hydrolysis-resistant
Seamless
Cold-applied
Fast-curing
Flexible in low temperatures
Excellent adhesion properties on a multitude of substrates
Root and rhizome-resistant in accordance with FLL specifications
Extremely weather-resistant (UV, IR, etc.)
Elastomeric and crack-bridging
Joint waterproofing on the side facing the water
Vapour-permeable
Resistant to all chemicals naturally present in soil and rainwater
Resistant to sparks and radiant heat (DIN 4102)
ETA certification with CE marking
General Building Supervisory Authority Test Certificate (AbP) in accordance with the Building Regulations List A, Part 2, No. 1.4 - Normally flammable joint waterproofing for concrete components with high water-penetration resistance against pressurised and non-pressurised water and against ground moisture. The tests are based on the testing principles for joint waterproofing (PG-ÜBB): The junctions of structural waterproofing on concrete components with high penetration resistance and in accordance with the specifications in the working group Building Regulations List A, Part 2, No. 1.4 on the assessment of settlement joints.
The waterproofing system is suitable for use in water-exchange zones in usage class A, load classes 1 and 2 in accordance with the German Directive on Watertight Concrete Structures (WU Directive).
Results
The implementation of the Triflex JWS system successfully resolved the long-standing leakage issues at NEX Mall. The expansion joint is now fully waterproofed, with a durable, crack-bridging system that can accommodate the building’s natural movements. The client was pleased with the seamless integration and durability of the solution, marking another successful project for Triflex Singapore.
About Triflex
Triflex is the leading In Asia specialist in liquid waterproofing solutions PMMA. Our high-quality systems provide reliable and lasting waterproofing for roofs, balconies, and parking decks. We are a family owned and operated company that provides individual solutions worldwide. From our production facilities based in Minden, Germany, we have been researching and developing solutions designed to protect and repair our clients' structures for more than 40 years.
In Singapore we pride ourselves on providing our clients with tailored solutions and exceptional levels of service & support throughout all stages of their project. From conducting in-depth site surveys, to our comprehensive testing and off-site and on- site support we ensure your project is completed on time and to the highest standards. All Triflex solutions are certified to the relevant UK & European standards and are accompanied with long term warranties to provide peace of mind.
For more information about our products and services contact us today!