Materials balance is achieved when material needs can be satisfied without depleting natural resources. 

To do this, we must incorporate durability, longevity and adaptability so that materials can serve a long life. We must also incorporate design for disassembly so that materials can be captured and diverted at the end of their service life.

Materials balance involves incorporating reused, re-purposed, recycled and rapidly renewable materials, while optimizing local and global resources in material choices.