Origins and Subsequent Explosion Globally
The original Cross-laminated Timber CLT patent was filed in Washington State, USA, in the early 1920s but never really took off.
However, in Germany and Austria, CLT gained traction and started being used on a larger scale in the construction industry during the mid-1990s.
These countries, along with Switzerland, were the pioneers in developing and using CLT.
In the early 2000s, the use of CLT expanded rapidly across Europe, North America, and Australia.
Today, CLT is considered a viable and sustainable alternative to traditional building materials and is becoming increasingly popular in the construction of eco-friendly homes and commercial buildings around the world.
What’s the Manufacturing Process?
The manufacturing process of CLT involves bonding multiple layers of softwood lumber together at right angles to each other to form a solid panel.
The layers are typically between 3-7 planks thick, and the panels can be up to 20 meters long, 3 meters wide, and 35 centimetres thick.
The design of CLT is intricate and precise, as the panels are made to specific dimensions and tolerances.
The manufacturing process involves using computer-controlled machinery to cut, drill and shape the panels to the required specifications, ensuring that they fit together perfectly during assembly.
The result is a strong and durable panel that can be used as a structural element in buildings. CLT is a sustainable building material, as it is made from renewable softwood sources and requires less energy to manufacture than traditional building materials like concrete and steel.
Furthermore, it is a cost-effective solution for building construction, as it can be prefabricated off-site and assembled quickly on-site, reducing labour and construction costs.
List of Advantages of Using it
Cross Laminated Timber (CLT) offers several advantages to construction companies. Here are some of them:
Strength and Durability
CLT is an incredibly strong and durable building material that can withstand extreme weather conditions, earthquakes, and fire.
CLT is made from renewable softwood sources and requires less energy to manufacture than traditional building materials like concrete and steel.
Speed of Construction
CLT panels can be prefabricated off-site, allowing for faster and more efficient construction on-site. This can lead to significant cost savings on labour and construction.
CLT has a natural wood finish that can be left exposed, creating a warm and inviting interior space. This also gives any interior designer or homeowner a greater choice of design and wood colours to choose from.
Acoustic and Thermal Properties
CLT has excellent acoustic and thermal properties, providing a comfortable and energy-efficient living and working environment. It is also adaptable to different environments, considering it was widely adapted in Switzerland and is now used in Australia, which has considerably different climate challenges.
What Kinds of Buildings Are Made Using CLT?
CLT is ideal for constructing single-family homes, apartment buildings, and multi-family housing developments.
CLT can be used for constructing offices, retail spaces, and other commercial buildings.
CLT is also suitable for constructing public buildings such as schools, libraries, and community centres.
CLT is gaining popularity as a material for constructing high-rise buildings, as it has excellent load-bearing properties and is lighter than concrete and steel.
CLT In Australia Today
There is a growing demand for sustainable housing in Australia, and CLT is emerging as a popular alternative to traditional building materials. CLT is being used in the construction of single-family homes, multi-family housing developments, and even high-rise buildings.
The increased use of CLT in the construction industry is helping to drive innovation and sustainable building practices in Australia, contributing to a more eco-friendly future for the country.
Notable Buildings in Australia Made With CLT
Several notable and famous buildings in Australia have been made using Cross Laminated Timber (CLT). Here are a few examples:
Forte Apartments, Melbourne
Completed in 2012, Forte Apartments is a 10-story residential building that was constructed using CLT. It was the tallest all-timber building in the world at the time of its completion.
Library at the Dock, Melbourne
The Library at the Dock is a public library located in Melbourne’s Docklands precinct. The building features a CLT structure and has won several awards for its sustainable design.
International House, Sydney
Completed in 2017, International House is a seven-story commercial building that was constructed using CLT. It is Australia’s first commercial office building to be made entirely from CLT.
Bunjil Place, Melbourne
Bunjil Place is a multi-purpose community building located in the City of Casey. The building features a CLT structure and has won several awards for its innovative and sustainable design.
25 King Street, Brisbane
Completed in 2018, 25 King Street is a nine-story commercial building that was constructed using CLT. It is the tallest timber office building in Australia.
These buildings are just a few examples of the growing use of CLT in construction in Australia. As the demand for sustainable building materials and eco-friendly homes continues to grow, we can expect to see more buildings in Australia and around the world being constructed using CLT.
In summary, Cross-laminated timber, CLT offers several advantages to construction companies, including strength, sustainability, speed of construction, aesthetics, and acoustic and thermal properties. With it still being advanced as we speak, its global appeal is growing. With climate change very much upon us, we will see the use of CLT in more countries in decades to come as other composite materials become less viable to use. But in general, it’s great for construction companies, workers and, of course, the end user.