Green construction projects not only focus on what goes into the building process, but what comes out of it.  In some cases, before a new building goes up or is renovated, an old building or portion of it must come down.  Site salvage, deconstruction and demolition specialists work to remove existing structures.  Site salvage, deconstruction, and demolition specialists dedicated to green construction practices in this section are committed to salvaging, recycling and reusing as much building material as possible and ensuring that the process of deconstruction and demolition does not negatively impact the environment.