Standards and guidance for resisting moisture from weather in roof and wall coverings

The requirement to resist the passage of moisture from the weather can also be met by following the relevant recommendations of – (a) BS CP 143 for sheet roof and wall coverings made from the following materials – Part 1: 1958 for corrugated and troughed aluminium; Part 5: 1964 for zinc; Part 10: 1973 for galvanized corrugated steel; Part 12: 1970 for copper; and Part 15: 1973 for aluminium; Recommendations for lead are included in BS 6915; (b) BS 8200 for the design of non-loadbearing external vertical enclosures of buildings; (c) BS 8219 for profiled fibre cement; (d) MCRMA Technical Paper 6 Profiled metal roofing design guide; and (e) MCRMA Technical Paper 9 Composite roof and wall cladding panel design guide. These documents describe the materials and contain design considerations including recommendations for fixing.