A stair-step crack is a diagonal crack but, since mortar is usually not as strong as concrete block or brick, the crack migrates to the mortar joints as it zigzags along a path of least resistance. Sometimes a stair-step crack will mostly follow the mortar joints, then take a short-cut through a defective block or brick, before returning to the stair-step pattern.
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Although cracks in decorative brick facings and some brick structures can be cosmetic, other cracks can be severe enough to cause all or part of the building to collapse. The collapse of freestanding brick garden or yard walls is less dramatic than that of an entire building but still may cause injury to nearby people and property.
Crack Causes
Rigid, right-angled cracks in bricks that resemble a staircase indicate a problem with the foundation underneath the wall. Horizontal cracks also are a problem, since they mean the wall is starting to fail. Unfortunately, there are several problems that can cause this type of cracking. Bpm free download. Horizontal cracks occur when something such as dirt or wind is pushing against the wall, but it also can be caused by poor soil below the foundation. Clogged gutters and water damage also create cracks in brick walls.
What To Do
Measure stair-shaped cracks as soon as you notice them, and continue to monitor them, measuring frequently. Consult a building inspector or contractor as soon as any of the cracks are more than 1/4-inch wide or accompanied by an obvious bulge in the wall. Get a professional opinion about horizontal cracks as soon as you see them. Do not attempt to address these issues yourself unless you are qualified to do so, as cracks in brick walls are a sign of potentially serious and dangerous problems.
Step Cracks In Brick Walls PicturesReferences (3)How To Repair Cracks In BrickAbout the Author
Writing professionally since 2008, Michelle Miley specializes in home and garden topics but frequently pens career, style and marketing pieces. Her essays have been used on college entrance exams and she has more than 4,000 publishing credits. She holds an Associate of Applied Science in accounting, having graduated summa cum laude.
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Miley, Michelle. 'Dangers of Cracks in Brick Walls.' Home Guides | SF Gate, http://homeguides.sfgate.com/dangers-cracks-brick-walls-82479.html. Accessed 29 September 2019.
Miley, Michelle. (n.d.). Dangers of Cracks in Brick Walls. Home Guides | SF Gate. Retrieved from http://homeguides.sfgate.com/dangers-cracks-brick-walls-82479.html
Miley, Michelle. 'Dangers of Cracks in Brick Walls' accessed September 29, 2019. http://homeguides.sfgate.com/dangers-cracks-brick-walls-82479.html
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