[F119. Any work associated with open raised external decking. Except–Any decking at a height of more than 1.2 metres. Decking that forms part of any access provided to comply with the requirements in regulation 9 and paragraph 4.1 of Schedule 5. Decking that forms any escape route, other than from a flat or maisonette, provided to comply with the requirements in regulation 9 and paragraph 2.9 of Schedule 5.]S