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The materials used in the construction also have an impact on the environment, either due to the energy required to make them, or because they degrade over time, or their ultimate disposal has a significant environmental impact.
It is important to limit the use of polyurethane foam (CFC free refrigerant) and polystyrene.
The use of wood from sustainable managed forests to build the structures in major projects is increasingly attractive, with respect to spanning capacities, fire stability and cost. |