Question: I can see a small crack in the block foundation in the back of my home. Is cracking common?
Answer: Cracking is one of the most common areas of concern found in a foundation inspection. Its significance to the integrity of the home or other structure depends on the length, width and depth of the cracking, location, direction of cracking, water intrusion if present and the effect on the rest of the house. Significant cracking can signal serious structural problems. Your NPI professional will check the condition of the foundation from both the exterior and interior of the structure if possible, determine location of any cracks and note them in the report.
Four common causes of cracking are: settlement, shrinkage, heaving and horizontal force. Settling occurs when one part of the structure moves and another part doesn't, or two areas of the house move at different times. Shrinkage cracks, found in concrete, are caused by the curing process and generally appear within a year. Heaving happens when the structure moves up ward, possibly caused by soils that expand, and horizontal cracking is the result of a lateral force pushing against a wall.
Other foundation concerns your NPI inspector will note include:
- Bowed or leaning walls
- The presence of collecting water near the foundation
- Crumbling or missing mortar
- Disintegrating brick
- Areas where newly-painted stucco or skirts have been installed and mask visibility
For more information on foundations, for answers on other components of a residential or commercial inspection, or to schedule an inspection, call NPI today.
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