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a) Which of the following cladding materials has the lowestembodied carbon?i. Concreteii. Aluminiumiii. Timberiv. Stainless Stee

Question

a) Which of the following cladding materials has the lowest embodied carbon?

i. Concrete
ii. Aluminium
iii. Timber
iv. Stainless Steel

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Solution

The material with the lowest embodied carbon among the options provided is Timber.

Here's a step-by-step explanation:

  1. Embodied carbon refers to the amount of carbon dioxide (CO2) emitted during the manufacture, transport, and construction of building materials, together with end of life emissions.

  2. Concrete, while commonly used in construction, has a high embodied carbon due to the energy-intensive process to produce cement (a key ingredient in concrete) and the large amount of CO2 released during this process.

  3. Aluminium and Stainless Steel also have high embodied carbon due to the energy-intensive processes required to extract and refine the raw materials, as well as to manufacture the final product.

  4. Timber, on the other hand, has a negative embodied carbon. This is because trees absorb CO2 as they grow. Even when accounting for the emissions from logging, transport, and processing, the overall embodied carbon of timber is still lower than the other materials listed.

Therefore, among the options provided, timber has the lowest embodied carbon.

This problem has been solved

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