Flat roofing a guide to good practice blue book 4th edition ruberoid plc 2002 document status current supplement core supplement abstract aimed at assisting architects specifiers and specialist roofing contractors in system selection. Flat roofing a guide to good practice blue book 4th edition publication year 2002 document status. Environmental good practice on site guide 4th edition publication c741 ciria 2015 document status current supplement core supplement series publication abstract presents a practical approach to managing and controlling environmental impacts of construction projects. This fourth edition of cirias popular site guide continues to provide industry practitioners guidance on identifying potential impacts and positively managing their effect the latest iteration of this user friendly reference tool and training aid reflects changes in legislation developments in practice and emergence of new issues challenges that the industry needs to take account of . The good practice guidelines gpg 2018 edition is the definitive guide for business continuity and resilience professionals the gpg is used as an information source for individuals and organizations seeking an understanding of business continuity as part of their awareness raising campaigns and training schedules