A building generates environmental impacts which are related to the materials it contains. ECO-BAT is a computer program that evaluates environmental impacts produced during the building life span, from its construction to its dismantling, including fabrication, replacement, waste management and transport.
ECO-BAT allows inter-comparison of different variants of a material, an element or a building.
The building's composition can be defined by adding new elements (walls, windows, roofs, etc.) formed by different materials.