A new record has been set in compliance with the Vinyl Council of Australia’s challenging, comprehensive material stewardship program. In the latest assessment of 47 companies’ annual performance, 24 demonstrated full compliance with sustainability objectives applicable to their businesses under the Australian PVC Stewardship Program (PSP).

“More than half of the participating Signatories have attained Gold Status, according to our updated data. This underlines our desire to see the vinyl sector continually improve with respect to their environmental sustainability,” says Vinyl Council of Australia Chief Executive, Sophi MacMillan.

A further 14 companies reached Silver status ensuring that 83% of all Signatories achieved 80% compliance or better; thereby achieving one of the key benchmarks set by the Program for greater sustainability.

Other significant highlights include the sustained year on year growth in the consumption domestically of PVC recyclate. This development, stemming from a commitment introduced in 2016 to use recycled PVC, has seen Australian manufacturing signatories consume over 1,400 tonnes in 2020, up from nearly 776 tonnes in 2019. Since 2016 nearly 13,400 tonnes have been used in Signatories’ locally-made and imported products.

“This is an appreciable uplift and is consistent with our aspiration to see our members play an active role in supporting the circular economy,” continues Sophi.

To further drive PVC recycling in Australia and meet a growing demand for PVC recyclate by manufacturers, the Council in collaboration with the Specialised Textiles Association, in late 2020 secured a $350,000 Federal Government Product Stewardship Investment grant for the TexBack project. It will explore development of technology solutions and a stewardship program for PVC-polyester composite textile wastes.

The Council’s PVC Recycling in Hospitals scheme, operated with PSP Signatories Baxter Healthcare and Welvic Australia, now has over 250 participants across the country recovering PVC medical waste for local recycling. In 2020, despite the Covid-19 pandemic challenges, the program collected 129 tonnes of medical PVC recyclate - equivalent to about 6.45 million IV bags.

The PSP also drives industry’s commitment to the safe and sustainable use of additives. All relevant Signatories attained full compliance with this commitment in 2020, including no use of hazardous substances such as lead, cadmium, and hexavalent chrome. Modern PVC products from Signatories contain no hazardous substances, and the industry is committed to advancing both the sustainability and circularity of its products.

PVC is a particularly versatile and durable polymer, providing safe, functional and affordable solutions for society’s needs, from delivering drinking water to life-saving medical devices. The PSP program addresses specific, measurable commitments across five key themes associated with the life cycle of PVC: best practice manufacturing, safe and sustainable use of additives, energy efficiency and greenhouse gas emissions, resource efficiency, and transparency and engagement.

Through the program, the Council and its Signatories continually explore ways in which outcomes can be further enhanced, either through the introduction of new commitments or by raising the bar on existing benchmarks. In 2020, many Signatories exceeded compliance in relation to energy efficiency and greenhouse gas emission management commitments. This year, the Council will examine driving further improvement given rising concerns over climate change and fossil fuel consumption.

“We welcome our new Signatories, Think Fencing and Dunlop Flooring, who joined the Program in 2020 and look forward to working with them going forward. Congratulations to window system supplier, Profine, who made considerable advancements during the past year and The Andrews Group, Breathe Fresh, Sekisui Rib Loc, and Stormtech who attained Gold Status for the first time,” says Sophi.

Any company manufacturing or supplying PVC, or vinyl, products to the Australian market is welcome to participate in the PVC Stewardship Program. 

The 2020 Progress Report for the PSP is now available here on the Vinyl Council’s website. Forty-six Signatories completed the annual assessment, 10 of which were independently verified by EY. A list of Signatories that achieved the Excellence Award (Gold Status) can be found on the Vinyl Council’s website or by clicking here.

The Vinyl Council of Australia is pressing the Australian Building Codes Board (ABCB) to exempt uPVC window frames and sashes from non-combustibility requirements in the National Construction Code (NCC) Volume One (Clause C2D10).

In its Proposal for Change, the Council is seeking to modify the Deemed-To-Satisfy (DTS) requirements with a concession for window sashes and frames from the non-combustibility requirements for external walls of buildings over three storeys.

In support of its submission, the Council highlights evidence showing that uPVC (unplasticized or rigid PVC) window frames do not pose a significant risk of accelerating the spread of fire on an external wall compared to a non-combustible, or metal, frame.

Furthermore, the acceptable Verification Methodology CV3 for assessing external walls, AS 5113:2016, is not designed or suitable for testing the fire performance of window frames.

Without a DTS solution, it effectively means that uPVC and timber window frames can no longer be used in some residential buildings of three storeys or more without a Performance Solution being commissioned for the specific project.

“Evidence shows uPVC window frames and sashes make negligible contribution to the spread of a building fire on external walls due to the relatively small material contribution from window frames and the self-extinguishing nature of uPVC. Physical fire testing overseas has shown that uPVC exhibits good fire resistance values,” says Sophi MacMillan, Chief Executive of the Vinyl Council of Australia.

“The change is proposed on the basis that the non-combustibility test excludes some materials that would not be expected to propagate fire, nor contribute significantly to the fuel load of an external fire or the spread of fire on the facade but have other desirable energy efficiency and acoustic insulation properties.”

She points out that the current Deemed-to-Satisfy provisions in NCC 2019 Volume One provide concessions for other elements of the window, such as glass, sealants, gaskets, caulking, and thermal breaks associated with glazing systems. The Public Comment Draft of NCC 2022 adds additional combustible window and glazing elements such as construction packers and compressible foams, but not the frames.

Radiant heat from a building façade fire will likely cause these concession elements and the glazing to fail before the frame does, which allows embers to enter the interior and ignite window furnishings or any other combustible materials adjacent to the window.

Recently, several jurisdictions have reviewed and, in some cases, tightened external wall non-combustibility requirements following major building fires, such as the 2017 fire in the 24-storey Grenfell Tower, London. However, exemptions or concessions for uPVC window and door frames have been confirmed on the basis that combustible frames would not be expected to propagate a building fire or add a significant amount to the fuel load of an external wall fire.

The Council argues that enabling the concession for window frames in the NCC 2022 will improve design choice and the transition towards higher performing windows without compromising fire safety.

In Europe and North America, uPVC windows are the most specified type due to their exceptionally good energy efficiency performance, Sophi points out. “Here in Australia, the overly restrictive requirements under the current NCC DTS provisions limit the opportunity for the construction industry to transition to well-proven, higher-performing windows from an energy and acoustic insulation perspective.”

The Building Code is generally amended on three-year cycles with the Public Comment Draft of the NCC 2022 released for consultation in May 2021.

In early April, the Council heard that their Proposal for Change was not accepted for inclusion in the Public Comment Draft of the 2022 Code.

Sophi adds: “This is disappointing news and means a substantial delay for us in addressing this issue before the next update in 2025. Many buildings and their residents seeking to retrofit energy efficient windows will now be disadvantaged.

“Our efforts are now focussed on gaining further supportive evidence for the suitability of the change, including more appropriate test methodologies for assessing the fire safety of window frames.

“Of course, we want to ensure buildings are safe in the event of a fire. However, a uPVC window frame does not pose a significant risk of accelerating exterior surface flame spread compared to a non-combustible window frame.

“The increasing use of uPVC over the last six decades in construction has led to a thorough assessment of its fire performance that attest to the safety of its use.”

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