The life-cycle of a building material can be considered to have five stages:
- mining/extraction/harvesting
- manufacture
- construction
- use
- demolition
Each stage of the life-cycle should be looked at when selecting appropriate materials for the building.
Below are methods which are used to assess the building materials.
Methods for assessing and choosing materials:
1. Environmental factors
2. Local materials and transport needs (savings)
3. Needs of occupants of dwellings
4. Need for appropriate building design for marketing
5. Need for financial viability/affordability
6. Need to make best use of current technology
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