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Cracks appear on Laing O’Rourke Manchester Airport building

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  1. Can’t tell if the walling is masonry [alarming!] or lightweight metal framed dry wall partition [not so alarming from a structural perspective]. If drywall looks like deflection heads have not been built in under structural members to allow for movement / deflection of the steelwork above so when steel beams bend slightly under permitted and designed allowances or expand slightly in hot weather the plasterboard will crack. If deflection heads are required they may also need to be fire rated. Check the structural engineers details and drywall design package perhaps..?

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