Detroit bungalows sit on heavy, expansive clay. Understanding the difference between a cosmetic settling crack and a catastrophic structural failure requires more than an inspector's license—it requires a Contractor's Eye.
In Detroit, horizontal cracks typically appear in the lower third or at the frost line of a block foundation. These are rarely "just settling."
Detroit clay retains massive amounts of water. During freeze-thaw cycles, this clay expands inward against your foundation. A horizontal crack signals that the wall is beginning to "bow" or shear under this lateral load.
Step cracks following mortar joints are common in 100-year-old Detroit homes. The key to ROI protection is determining the **width** and **displacement**.
For an investor, a foundation issue is the ultimate negotiation lever. Understanding the cost of remediation is the difference between a profit and a loss.
"An identified $10k foundation repair can often negotiate $20k off the purchase price in the Detroit market. That is a 100% ROI on the inspection fee."
Vertical cracks are usually caused by the settling of the footing. While often cosmetic, if they are wider at the top than the bottom, it may indicate a 'point-load' failure that needs structural support.
The industry standard is that any wall bowing more than 2 inches from vertical is considered structurally unstable and requires reinforcement.