CIOB QS Technician Practice Exam

Sustainability in materials focuses on resources that are renewable, require low energy to produce, and have a smaller environmental footprint over their life cycle. Bamboo flooring fits this well because bamboo is a fast-renewing resource and can be harvested repeatedly without after-effects on the forest ecosystem. Its processing typically involves lower embodied energy compared with materials like cement-based concrete or virgin steel, and it replaces more carbon-intensive options in many applications. When sourced responsibly, bamboo also supports sustainable land use and often has good durability for flooring.

In contrast, concrete with high clinker content involves significant cement production, which releases large amounts of CO2 and carries a higher embodied energy. Non-recycled steel relies on virgin ore extraction and energy-intensive processing, contributing to a larger environmental impact despite steel’s recyclability. Plastics made from non-recycled sources depend on virgin petrochemicals and require substantial energy to produce, with ongoing concerns about long-term waste.