Exploring the potential of cross-laminated timber in vertical expansion of cities – a case study of Dubai city

Purpose: Rapid urbanization worldwide, forecasted to reach 68% by 2050, has led to urban sprawl and increased CO₂ emissions. To address these challenges, urban densification strategies like roof stacking have gained attention. The potential of adopting sustainable construction material, cross-laminated timber (CLT), in the context of UAE is explored. The primary objective of this study is to evaluate the benefits and challenges of utilizing CLT for roof stacking in urban densification efforts in the UAE, particularly in Dubai. Design/methodology/approach: The study utilizes a mixed-methods approach, beginning with an exhaustive review of literature sources related to urban densification, roof stacking and CLT. Following this, Scopus literature is analyzed visually using VOSviewer. Considering CLT’s non-local status in the UAE, the environmental impact of transporting from Austria to Dubai is then calculated using the EcoTransIt calculator. Findings: CLT presents itself as an environmentally friendly lightweight material that offers a promising alternative to steel, which is commonly used in lightweight construction. Despite finding it suitable for roof stacking, several challenges emerge in its adoption in the UAE. Originality/value: This study represents a pioneering effort in the context of the Middle East, focusing on the adoption of CLT for roof stacking. While significant insights have been gained regarding the challenges and opportunities associated with this innovative approach, there remains ample scope for future research to further explore and address these complexities.