Compliance with regulatory requirements, suitability for use, and proper curing are all essential factors to consider when selecting and installing a waterproofing membrane. It is important that the correct membrane is selected for each application, a one size fits all approach is never appropriate when it comes to the selection and specification of waterproofing membranes. Preventing water from entering and accumulating within a building is crucial to avoid creating unhealthy conditions and damaging building elements. In order to maintain healthy living conditions and to preserve the integrity of a building and its property, it is crucial to avoid the accumulation of water in internal wet areas. Whether you’re a builder, specifier, or manufacturer, understanding these standards and conducting compatibility tests can lead to resilient building envelopes. Are they compatible when applied over different primers, or when different materials are applied over the top such as sealants, top coats or tile adhesive
The final layer of an external waterproofing system often involves the application of overlays or finishes. Adequate drainage solutions are a fundamental aspect of any successful external waterproofing strategy, playing a critical role in managing water runoff and preventing accumulation. Penetrations through the waterproofing membrane, such as those for pipes, cables, and other utilities, represent potential weak points where water ingress can occur. These terminations must be designed and executed meticulously to ensure that water does not bypass the waterproof barrier at edges, corners, and transitions. A well-designed gradient ensures that water is efficiently directed towards drainage points, minimising the risk of pooling and ingress. This careful selection process is vital AS/NZS 4586 Slip Testing for areas prone to wet conditions, such as balconies and roofs, where the risk of water ingress is highe
High Voltage Membrane testing [sometimes referred to as spark testing or holiday testing]. All ELD testing equipment is capable of testing nonconductive waterproof membranes. ELD Testing is quick, and efficient and allows for repairs and retesting immediately reducing downtime on site. Independent Testing Australia (ITA) is fully accredited to perform waterproofing membrane testing in accordance with the requirements of AS/NZS 4858 and provide NATA endorsed documentation. An exposed membrane that has de-laminated from its substrate can be more easily cut torn when force is applie
The low voltage Vertical Surface Scanning roller listed under the guide for testing vertical substrates works by moistening the roller sleeve as AS/NZS 4586 Slip Testing the operator rolls the testing tool up the substrate forcing the water before it into any breaches. Given Vector Mapping requires a constant flow of water over a substrate, vector mapping is not able to test vertical substrates – even with an additive in the water to create a film on a given vertical surface, the accuracy is still not reliable. In areas where there are multiple breaches, further testing needs to be undertaken each time until no more breaches are identified. If there are only puddles on the surface, then the circuit would be incomplete resulting in missed breache
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Water is then applied to the area within the perimeter wire ensuring full coverage of the surface is achieved. ELD works by creating an electrical field between the membrane surface and a conductive deck or substrate [ie Concrete] which is earthed to the building. D) Requires temporary dams to be installed to partition off individual wet areas from non-wet areas in buildings, The testing of waterproof membranes is a quality control method to identify breaches, defects or leaks in the membrane before it is covered over, allowing time to repair these deficiencies during or soon after installation. For ensuring long-term sustainability for the entire building enclosu
AS/NZS 4858: Wet Area Waterproofing Membrane Testing
AS 4654 is the primary Australian standard that relates to the physical performance properties of waterproofing membranes specified for use in external, above ground waterproofing systems applied to roofs, decks, balconies and planter boxes in buildings to prevent water ingress and protect AS/NZS 4586 Slip Testing structures from moisture damage. Waterproofing Integrity otherwise possess other electronic leak detection methodologies which are achieved with a low voltage DC current through wet applications. Electronic Leak Detection [ELD testing] is fast becoming the preferred testing method for builders, waterproof manufacturers and waterproofing contractors who understand time is money on a building site.
AS 4654.1: Waterproofing Membranes for External Above Ground Use Testing
Detec Australia, serving the building industry since 2003, develops and provides leading-edge technology in the field of Electronic Leak Detection (ELD) internationally. Cooper and Oxley engaged Detec Australia to test the liquid membrane being installed on the carpark deck and terrace walkway and gardens with retail areas, changerooms etc directly below to ensure no leaks were found in the waterproof membrane. Freyssinet were contracted to remove tiling, repair existing waterproof membrane on one half of the building which had been replaced 2 years earlier and install a new membrane system on the remaining half. Faulkner Road Community Centre currently being built by PACT Construction required as per Architects specification provided by Bollig Architects to have the Soprema waterproof membranes fully tested by Detec Australia
An exposed membrane that has de-laminated from its substrate can be more easily cut torn when force is applied. Membranes that are designed to be fully bonded to their will exhibit reduced performance where a sufficient bond is not present. Adhesion testing is a destructive test most commonly applied on exposed areas such as rooftops and podiums. Coupled with architectural designs and material selection, waterproofing isn't as simple as applying a coating. Australian Standards, the National Construction Code and Housing Provisions outline minimum requirements to be adhered to waterproofing system installations.
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