Architects, designers, and contractors are increasingly familiar with the policies, procedures, and guidelines for achieving sustainable, or "green" building standards. But what about the green building materials themselves? What are they, what are the options, and how should you decide what to specify? The green building movement is gaining momentum; a maze of new products, manufacturers, and standards are routinely introduced, leaving professionals to wonder what's best for their projects. This handy primer, a companion to the author's Understanding Green Building Guidelines, summarizes the materials available, compares their advantages and disadvantages, explains how to use them and explores the considerations for choosing among them. From eco-friendly sheetrock to sustainable paint finishes, it lays out the basics of green building products, helping architecture and design professionals make sense of the fast-paced building movement.