Well, to some any crack is too big! But to many Inspectors 1/8 inch is a key number. If a crack in the brick veneer of a home or building exceeds 1/8" in opening, OR, shows differential movement, then the crack should be repaired.
In this picture on the right the vertical cracks are approaching 1/2" in width. Clearly this is unacceptable as the potential for water and insect intrusion is readily apparent. This veneer is on a home that is over 50 years old and the concrete mortar is breaking down. Fortunately the veneer was not "moving" off the house due to a foundation or brick ledge failure.
Also, the cracks are the same size at the top as they are at the bottom. That's good in the sense that there is no differential when comparing the size of the cracks at the top versus the cracks at the bottom. In a case where the cracks are larger/wider at one point compared to another, differential movement is occuring. That is very serious and should be flagged every time in an Inspection.
Comments in this blog posting are the copyrighted property of Richard Acree, President, HABITEC Home and Building Inspections, LLC, and are intended to educate and otherwise assist home owners, sellers and buyers, building owners, sellers and buyers, realtors, real estate investors, property managers, and lenders in the process of owning, buying or selling homes or commercial buildings. HABITEC is a residential (home) and commercial building inspection company serving Middle Tennessee including Nashville, Brentwood, Franklin, Murfreesboro, Smyrna, Mt. Juliet, Hendersonville, Dickson, Belle Meade, Columbia, Spring Hill and more! In addition to building inspections HABITEC offers Environmental Services for mold assessments, radon testing and water quality analysis. Additional information about HABITEC can be found on our website at www.habitecinspections.com, or call 615-376-2753. Thank You!