ONLINE VERSIONProtection against impact with glazingK4Section 5: Protection against impact with glazingGlazing in critical locationsFor all buildings5.1 Diagram 5.1 shows critical locations in terms of safety. See paras 5.1–5.2, 7.1–7.2 Doors and side panels Windows1 2 39 10451500mm118 Floor level 800mm800mm 6 7300mm 300mmShaded areas show critical locations to whichrequirement K4 applies (i.e. glazing in areasnumbered 2, 4, 5, 6, 7, 8, 11)Diagram 5.1 Critical glazing locations in internal and external walls5.2 In critical locations, comply with one of the following.a. Ensure that glazing, if it breaks, will break safely (see paragraphs 5.3 and 5.4). b. Choose glazing that is one of the following:(i) robust (see paragraph 5.5)(ii) in small panes (see paragraphs 5.6 and 5.7). c. Permanently protect glazing (see paragraph 5.8).Building Regulations 2010 Approved Docu Approved Docu Approved Docu Approved Document K, 2013 edition 31ONLINE VERSIONONLINE VERSIONONLINE VERSION