40%
Life-cycle assessment (LCA) studies performed in the last decade on the use of cross-laminated timber (CLT) to construct multi-storey buildings – instead of more conventional steel and concrete – show a 40% reduction in carbon footprint.[1]
  • Advantages of using CLT include its low environmental impacts, its high strength-to-weight ratio, its ease of installation and its aesthetic appeal.
  • CLT stores carbon during its service life. The panels can then be reused or recycled. (Being a relatively new technology, ClT buildings are still within their service life so how much reuse or recycling will be practicable is yet unknown.)
  • CLT has been associated with a 30% reduction in construction time [2].

References:

[1] 'Cross-laminated timber for building construction: A life-cycle-assessment overview' https://www.sciencedirect.com/science/article/pii/S235271022 . . .
[2] 'A Project Contribution to the Development of Sustainable Multi-Storey Timber Buildings...' https://repositorium.sdum.uminho.pt/handle/1822/26947