Cross Laminated Timber (CLT)
Elkford Community Conference Centre, Elkford, B.C. Architect: Douglas Sollows Architect Inc. Photo: Henry Georgi Photography
Cross-laminated timber (CLT) is an advanced product, developed in Switzerland in the early 1990s, designed for increased dimensional stability and strength in framing systems. CLT is made of multiple layers of wood, with each layer oriented crosswise to the next. Used for long spans in floors, walls or roofs, CLT can be prefinished, which reduces labour onsite, and is equally suited to new construction and additions to existing buildings.
Green building practices have helped CLT’s popularity, with its combination of environmental performance, sustainability, design flexibility, cost-competitiveness and structural integrity. As CLT is all wood (except the adhesive that binds it together), it offers carbon-storage advantages over non-wood structural alternatives.
Did you know?
When considered over a building’s lifetime – from harvest of raw materials through manufacturing, transportation, installation, use, maintenance and disposal or recycling – wood performs better than concrete and steel in terms of embodied energy, air and water pollution, carbon footprint and global warming potential.