Category Archives: Cracking

Spalling, Paint & Repointing

Posted by in Buying/Maintaining a Home, Cracking, Masonry | November 16, 2015

Spalling is a shallow delamination, bulging, and dislodging of thin slices of a material.  In the case of a masonry chimney spalling is the delamination and dislodging of thin slices of the clay brick material which often extends into the… Read More

What Can We Tell from This Photo? (Case Study 8)

Posted by in Cracking, Masonry, Simple Forensic Methods | July 27, 2015

What can we tell from THIS photo? The portion of the wall on the left side of the cracking has dropped relative to the right.  This indicates that the cracking is probably from some type of earth movement, such as… Read More

Cracking from Lintel Lift on a Single-Family Dwelling

Posted by in Buying/Maintaining a Home, Cracking, Masonry | May 18, 2015

The above photograph shows a pronounced stairstep crack emanating from the upper corner of a window in a brick wall on the gable end of a single-family dwelling.  By pronounced I mean obvious, easily seen. In the subject case, a… Read More

What Can We Tell from This Photo? (Case Study 7)

Posted by in Cracking, Masonry, Simple Forensic Methods | April 20, 2015

  This concrete block wall exhibits an unusual pattern of cracking.       What can we tell from these two photos? The line of the horizontal joints and the line at the top of the wall indicate that wall… Read More

What Can We Tell from This Photo? (Case Study 4)

Posted by in Basements, Cracking, Masonry, Simple Forensic Methods | October 20, 2014

  This is an exercise to develop the abilities of observation. What can one know from examining this photograph? The pattern of the joints under the coating indicate that this is a concrete block wall. The coating appears to be… Read More

Some Evidences of Recent Movement

Posted by in Cracking, Masonry, Simple Forensic Methods, Wood | September 08, 2014

We are often called in to evaluate as to whether some particular damage is old or new, that is, did it occur recently as reported or has it been present and possibly progressing for years.  As experienced forensic engineers we… Read More

Bulging in a Clay Brick Wall

Posted by in Cracking, Masonry | August 18, 2014

What causes a clay brick wall to bulge outward as we see in Photo CBW-1?     A bulging clay brick wall is an unexpected sight to most observers.  When one becomes aware of a bulging brick wall one is… Read More

When Did THIS Happen?

Posted by in Concrete, Cracking, Simple Forensic Methods | July 10, 2013

We are often asked to determine the age or the history of various structural damages.  For example, we may be asked if we can determine the age or history of cracking in a wall, driveway, floor, etc.? The age and/or… Read More