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Mass Timber

The 21st Century Building Material

It is well known that timber is the only renewable construction material, whose resources can be expanded and replenished through sustainable forestry management. 


Around the world, designers are leveraging the strength, stability, and design flexibility of products such as Cross Laminated Timber (CLT) or Glue Laminated Timber (Glulam) to push beyond wood’s perceived boundaries, achieving building heights and spans that would have once required concrete, steel, or masonry for structural support.

Massive timber products can be utilised in many different building types, however given their inhernet strength they are most advantageous in building larger building structures – either as the main superstructure material or in combination with other building systems to form hybrid construction methods

 

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Cross Laminated Timber

Cross-laminated timber (CLT) is an engineered wood product It is produced by stacking a number of layers of kiln-driedtimber, known as lamellas, at 90º to the layer below, laid flat-wise, and glued together on their wide faces. Panels typically consist of three, five, seven or nine lamellas. The alternating directions of the CLT laminations provide it with high dimensional stability.


CLT also has a high strength to weight ratio, along with exhibiting advantages for structural, fire, thermal and acoustic performance.


Panel thicknesses usually range between 100 to 300 mm (4 to 12 in), but panels as thick as 500 mm (20 in) can be produced. Panel sizes range from 1.2 to 3 m (4 to 10 ft) in width and 5 to 19.5 m (16 to 64 ft) in length. 

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Glued Laminated Timber

Glued laminated timber or glulam as it is more commonly known, is an engineered wood product, manufactured from layers of parallel timber laminations - normally Spruce or Pine. 

One of the greatest advantages of glulam is that it can be manufactured in a wide variety of shapes, sizes and configuration. Beams wider than normally available, can be manufactured by laying boards of different widths side by side and reversing each layer so that there is an overlap and no straight-through vertical joint. 

With its high load bearing capabilities and high dimensional stability glulam can be manufactured up to 50 metres in length and 4.5 metres in width, however, due to transportation limitations to the Middle East, these dimensions are restricted to that which fits into 40ft High Cube shipping containers. 

 

Wood is the most technologically advanced material that we can build with. The Earth grows our food. The Earth can grow our homes. It’s an ethical change we have to go through

Trees absorb carbon dioxide as they grow. When the tree is harvested the carbon remains stored in the timber until the end of its physical life – roughly one tonne per metre cubed. While this carbon is safely locked up in timber products – such as walls, windows, doors or floors – more trees are planted, absorbing and storing carbon as they grow.


In fact, LCA studies show that more emissions are absorbed and stored in timber products than are emitted during harvesting, processing, manufacturing and transportation combined. This provides a net emissions reduction process.