CHAPTER 7: Superstructure CONTENTS 7.1 EXTERNAL MASONRY WALLS 7.2 STEEL FRAME 7.3 TIMBER FRAME 7.4 WINDOWS AND DOORS 7.5 CHIMNEYS 7.6 BALCONIES 7.7 CLADDING 7.8 ROOF STRUCTURE 7.9 ROOF COVERINGS - TRADITIONAL SLATE AND TILES 7.10 ROOF COVERINGS - CONTINUOUS MEMBRANE ROOFING 7.11 ROOF COVERINGS - GREEN ROOFING 7.12 ROOF COVERINGS - METAL DECK ROOFING Chapter 7