How can you tell if the materials and components you are specifying have a low environmental impact? A full life-cycle assessment is a complex, time-consuming and expensive process; the environmental ratings summarised in this Guide provide a quick and easy way for designers and specifiers to assess their options. The relative environmental performance of over 250 materials and components have been assessed in this guide, using carefully researched, quantitative data derived from the BRE Environmental Database. A wide range of alternative specifications are provided for:. ะยท walls. ะยท floor syst. Read more... The Green Guide to Specification an Environmental Profiling System for Building Materials and Components; Contents; Foreword; Acknowledgements; The Authors; Part 1 Introduction; Part II: How to use The Green Guide to Specification; Part III: Green Guide ratings; Part IV: Appendices; Appendix 1: General notes relating to the use of specific materials and particular environmental issues; Appendix 2: Worked example of the generation of a Green Guide rating for an internal wall specification. Appendix 3: Production of a BRE Environmental Profile for a material using the BRE Environmental Profiles MethodologyAppendix 4: BREEAM case study; Appendix 5: Differences in environmental issues from previous editions; Contacts and further information; References; Index