Modern buildings often have a wide choice of materials for a given job. For example, a roof can be made of various metals, ceramic tiles, concrete, or organic materials including wood and straw. The choice of material will normally depend upon the job it is expected to do such the load it has to bear, its price and availability, and the look or feel it gives to the building.
The final selection of materials will normally rest upon the advice of professional builders and designers and the wishes of the people who are going to live in the building. The sustainability index cannot substitute for the advice of a professional builder or designer, but it can encourage them to include environmental considerations in the advice that they give.
water – building design
energy efficient design