Design and materials of external walls

5.—(1) The responsible person in relation to a high-rise residential building must prepare a record of the design of the external walls of the building, including details of the materials from which they are constructed. (2) The record prepared under paragraph (1) must include details of the level of risk identified in the risk assessment required under article 9 of the Regulatory Reform (Fire Safety) Order 2005 that the design and materials of the external walls give rise to and any mitigating steps that have been taken in respect of that risk. (3) The responsible person must prepare a revised record under paragraph (1) if there are any significant changes to the external walls of the building