It can be difficult to assess exactly how sustainable a product is and which materials are preferable to others. Often we have to rely on manufacturers’ information, which can be biased and incomplete. This ebook aims to bring some clarification to the issue. It outlines some tools that can help you to choose your building materials, but the issues are rarely straightforward. The evaluation tools such as Life-cycle analysis, Embodied energy, Environmental labeling, Other criteria, Renewable resources, Sustainable resources, Local resources, Toxicity, Quality, Re-use and recycling. Your decisions will depend on current information, your individual circumstances and common sense. Download choosing building materials here (see term of use).