Three carbon-neutral Siniat plasterboard products were used in the Barangaroo South Residential Waterfront development to meet Lendlease’s sustainability goals for the project.
With sustainable building and living at the center of new developments, particularly for government projects, and with all eyes on the development of Barangaroo in Sydney, project developer Lendlease is fully committed to a range of sustainable development initiatives.
One of their goals was a 20% reduction in embodied carbon (EC), covering the sum of all greenhouse gas emissions created during the manufacture, transport and installation of building materials for the project.
Embodied Carbon (EC) is the sum of all greenhouse gas emissions created during a product’s life cycle, from cradle to grave, which encompasses product development, use, deconstruction and its elimination.
Barangaroo incorporates a number of different buildings, each of which has varying possibilities of reducing CE during the construction process and beyond. The first buildings under construction were the Alexander and Anadara residential buildings, designed by PTW and FJMT respectively, located on the western outskirts of Barangaroo South, overlooking Sydney Harbour. The buildings consist of 159 apartments, with commercial space on the ground floor, representing a combined floor area of 18,225 square meters.
With Siniat’s existing commitment to reducing the environmental impact of its manufacturing and installation processes, and with internal plasterboard wall claddings constituting a significant proportion of building materials, this presented a substantial opportunity to investigate ways to reduce EC.
Lendlease approached Siniat to explore ways of working together to reduce the carbon footprint associated with the supply and installation of plasterboard for the project, knowing that this would make a significant contribution to their goal of reducing carbon levels. EC.
Identifying with the challenge, Siniat, which began reducing its carbon footprint in 2009 as part of its commitment to its sustainability and environmental management system, embarked on a program to accurately quantify emissions associated with the manufacture, installation and deconstruction of its wallboard, and achieve carbon neutral certification under the government’s National Carbon Offsetting Standard (NCOS) (now called Climate Active.) carbon neutrality is achieved when the net greenhouse gas emissions of the product or organization are equal to zero.
With Lendlease’s full support and a head start on their commitment to sustainability, Siniat achieved carbon neutrality for all three plasterboard products, MastaShield, WaterShield and FireShield that were used at Barangaroo.
The first step in the process was to document and accurately measure Siniat’s existing environmental and energy efficiency measures in the manufacturing process.
These measures included activities such as the recycling of waste heat in the plaster factory, heat exchangers installed on the dryers, a decrease in water consumption, optimized mixing processes, switching to natural light and LEDs in the plant, waste reduction and continuous staff training for operations Efficiency and behavior.
Energy efficiency is a key sustainability indicator for Siniat, and its quantification and recording has been a key factor in achieving carbon neutrality. Consumption is managed daily, and tracked and reported monthly by primary fuel source.
Etex Australia is the manufacturer of Siniat products in Australia. All of Etex Australia’s manufacturing and distribution facilities have been formally approved for recertification to the most recent versions of ISO management system standards for health and safety, quality and environmental management .
The last step in the process was to compensate for the EC that could not be reduced in the manufacturing process, also taking into account the carbon emissions that may occur during the deconstruction and disposal of the products.
Siniat uses qualified offset providers who will meet the requirements of the Climate Active standard, but who also meet their own criteria of providing a strong social responsibility aspect, in this case bringing social and environmental benefits to communities in Kenya across the country. Lifestraw project, and replacing carbon intensive energy use with renewable energy.
As MastaShield, WaterShield and FireShield are available under the opt-in carbon neutrality program, Lendlease’s support for the project was vital.
“Partnering with Lendlease and their commitment to drastically reducing carbon emissions allowed us to commit resources to create a carbon neutral program for these products, which could then be rolled out for future projects and allow Siniat to be able to offer a carbon neutral option to meet sustainable design requirements,” said Kathryn Walker, National Sustainability Manager, Etex Australia.
Since the completion of the Barangaroo project in 2015, the carbon neutral program has been extended to all Siniat plasterboard and metal products manufactured by Etex Australia.