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Challenge750m2 roof with a large quantity of vents, air conditioning units and other equipment on the roof. Add to this problem damaged aging torch membrane, combined with Governments regulations regarding solar absorption and reflectivity of the building posed a real challenge for the applicator when determining a solution for the job.A second challenge for this job is the location of the building was located in the built up CBD of Parramatta with neighbours in close proximity, which meant the solution needed to be neighbourhood friendly.SolutionGiven the complexity of solution required for such a job AlphaGuard BIO is the only product which ticks all the boxes. AlphaGuard BIO is an extremely high performing composite waterproofing system, designed with a focus on roofing restoration. Due to AlphaGuard BIO being a liquid, it makes it ideal for jobs where there are machinery on the roof which needs to be worked around.AlphaGuard BIO has the ability to be installed over various existing roofing membranes in order to minimise tenant disruption and extend the life of the roof for an additional 20 years.It cures to form a durable rubber membrane surface that provides a lasting and easy-to clean waterproof coating. AlphaGuard BIO may be used to apply a seamless, monolithic waterproof membrane to concrete, primed metal, or existing roofing membrane surfaces.AlphaGuard BIO’s low VOC will minimise offensive odours to current tenants and applicators. The white top coat provides high solar reflectance, reducing the building’s operation costs and complying with Section J1.3(b) of the 2019 NCC.

​About the ProjectThe sporting history of Waverly Oval dates from the 1880s when the Waverley Cricket Club gained approval to construct a pitch. Football codes also began using the park at this time. In 1890, the oval was created, and in 1898 the Waverley District Baseball club was founded at the oval.The first pavilion was built by the Waverley Cricket Club in the 1890s and Council built a second pavilion in 1908 with expanded facilities for the benefit of the cricketers and the public. This Pavilion was replaced in 1939 with an Inter War Functionalist style building. In April 2012 the new Waverley Park Pavilion was named the Margaret Whitlam Recreation Centre, in honour of the long association the late Margaret Whitlam (AO) had with the Waverley area. The pavilion was chosen because of its civic, community and recreational facilities incorporating several important aspects of Margaret Whitlam’s life.ProblemRemediation of the pedestrian areas of Margaret Whitlam Grandstand was completed 5 years ago but unfortunately was not successful due to product failure (not Tremco). Council contacted Tremco to provide an acceptable solution with the requirements that the new system needed to come with a 15 year warranty.The challenge of this project was not the 15 year warranty period, but the need for a low odour solution due to the area being in a Public/Government venue. Not all membranes have Low VOC properties.SolutionTremco recommended Vulkem 350/951NF/951NF for the job, which is not only low odour but also offers a 15 year warranty period as required from the council. Tremco offering onsite support throughout the project gave the council confidence in our product.Vulkem 350/951NF/951NF, is a composite waterproofing system comprised of tough-curing liquid polyurethane. It cures to form a durable rubber membrane surface that provides a lasting and easy-to-clean waterproof and trafficable coating. Textured surfaces for traffic will use an aggregate-laden top membrane to aid in wear and slip resistance.

About the ProjectThis Child Health and Learning facility in Manly, deliversspecialist child healthcare for up to 15,000 families a yearfrom rural, regional and remote New South Wales andbeyond.The new facility will integrate a state-of-the-art child schooland health service that will accommodate regional childrenand families nationwide.This six storey building includes school classrooms,consultant and observation rooms, a paediatric oral healthunit with a dental and orthodontics room, ophthalmology,occupational therapy, sensory rooms and a telecare centre.ChallengeOver 80% of construction litigation and defect claims are a result of water ingress, of that 80%, almost 30% of those are below grade issues. (City Futures Research Centre UNSW).The two biggest waterproofing challenges for this build were:1) Below Grade - Non structural Blinding Slab, 4 metres below sea level and less then 50 metres from Manly Beach. This build had decanters pumping over 1.3 million litres of water per day awayfrom the site during the construction phase.2) The creation of a waterproofing solution which would not fail if the membrane was penetrated, be it in the pre or post construction phase.Due to the proximity to the beach and the build having a raft slab in the basement, a standard cookie cutter below-grade waterproofing solution was not an option for this build.Tremco SolutionTremco were asked to provide a solution for this complex build. The biggest and most demanding waterproofing areas within the build that needed attention were:1) Below Grade - 50 metres from the ocean and 4 metres below sea level, we needed a reliable waterproofing solution, that would also be robust enough to withstand any punishment tradesdelivered post installation, we recommended and used Paraseal SW (Saltwater). Paraseal SW is a multi-layer sheet membrane waterproofing system consisting of a self-sealing, expandable layer of bentonite laminated to an impermeable, high density polyethylene (HDPE).2) iAuditor reporting- iAuditor is an onsite quality assurance program Tremco conduct for the builder and applicator to ensure our products are being installed correctly and to specification. This gives the builder the confidence that there will be no waterproofing defects within the build.Overall, both the builder and developer were happy with the end result, which provided the warranty and quality required of such a development.