2.6.1 Wall structure 2.6.1.1 Ceilings (a) Isolated patch Appearing during or after rain. The most common source of this type of dampness is defective roof plumbing and flashings. (b) Isolated…

2.5.1 Roof structure 2.5.1.1 Roofframing and roofing (a) Distortion/lifting/damage Movement of the roof is commonly caused by the roof not adequately resisting wind uplift forces. Often the roofing is not adequately secured…

2.4.2 Wall structure  2.4.2.1 Masonry – foundation related cracking  Diagonal cracks Most commonly occurring at the corners of buildings, the cracking will tend to be wider at the top of a…

2.4.1 Roof structure 2.4.1.1 Concrete roof slabs Cracks, variable in direction and depth Cracking will commonly result from one or more of the following causes: shrinkage during setting; inadequate support;…