When cracking is observed in a building the most common
reaction is that it must be the foundations and that it must be
serious.

Many surveyors are nervous about diagnosing cracks. This is
understandable, as the interpretation of cracks can be difficult to
teach, with university courses providing little or no time for
field experience. Yet by understanding one straightforward
principle the majority of cracks can be diagnosed in just a few
minutes. Linking this with a good knowledge of construction
techniques, the factors that distort cracking patterns and the key
features of common causes of cracking, almost all cracks can be
diagnosed quickly and with confidence.

Practical Guide to Diagnosing Structural Movement in
Buildings provides a methodology by which cracks and movement
in buildings can be diagnosed. Written in four parts, part one
describes the key principles of movement and cracking. Parts two
and three describe the main features of common forms of movement
and the associated crack patterns. Part two covers causes other
than ground or foundation movement and part three covers movement
caused by ground or foundation problems. Part four briefly
describes the techniques used to arrest further movement or repair
damage cause by movement.

Primarily intended for the relatively inexperienced surveyor or
engineer and undergraduate students of surveying as a practical
guide for use on site, it focuses on identification and diagnosis.
It will not only help in correctly diagnosing the problem but it
will also demonstrate a methodical approach to show and record how
the diagnosis was reached ? critical when giving advice to
third parties.

"What's the crack?" - In the vast majority of cases it's not
foundation related and in most cases it's not indicating a serious
defect.