ONLINE VERSIONProtection from collision with open windows etc.K5.1 See para 6.1 If greaterthan If less 100mm than 2mCobbles and very slight change ofSECTION levelDiagram 6.2 Marking by a surfaceSpaces used only for maintenance6.2 In spaces which are used infrequently and only for maintenance you can, for example, mark the projecting part clearly to make it easy to see.Building Regulations 2010 Approved Docu Approved Docu Approved Docu Approved Document K, 2013 edition 37ONLINE VERSIONONLINE VERSIONONLINE VERSION