Towards a Sustainable Future: Timber Waste Management in New Zealand’s Construction Industry

Abstract

This research paper provides a comprehensive overview of construction and demolition waste (C&DW) management, specifically emphasising timber waste. Firstly, it assesses timber’s environmental and functional advantages in the construction industry. Despite the benefits of timber, the paper identifies significant challenges in managing chromated copper arsenate (CCA)-treated timber waste due to its potentially hazardous impacts. To address these issues, the study proposes enhanced public understanding, innovative timber treatment processes, and effective waste management strategies. The role of stakeholders and policymakers in shaping sustainable waste management practices is also explored, highlighting the importance of implementing site waste management schemes and extended producer responsibility programs. The paper culminates in the presentation of innovative approaches for waste management, encompassing statistical modelling, automation, and systemic carbon reduction strategies. The research concludes with a set of recommendations aimed at promoting sustainable material selection, managing CCA-treated timber, enhancing stakeholder engagement, and adopting lifecycle consideration in material selection.