A Brick Crack, a Sloping Hallway, and a Demand for a Failed-Foundation Letter
A two-story house on a post-tensioned slab-on-grade foundation closed eleven months ago. The client reports sticking doors and a crack at the rear corner. You observe a vertical crack in the brick veneer at the rear right corner, 3/8 inch wide at the top course and tapering out by the sixth course, plus a 3/4-inch gap at the joint between the brick and the corner trim. Inside, a tape and four-foot level show the first-floor hallway sloping 7/8 inch over 20 feet, and there is a diagonal drywall crack at a bedroom door corner. Outside, the rear downspout discharges within 12 inches of the cracked corner, and the soil at that corner slopes back toward the foundation roughly 1 inch over 4 feet. The warranty book has a ten-year major structural defect provision, an exclusion for normal settlement, and a clause requiring written claim notice within 30 days of discovery, with disputes resolved by binding arbitration. The builder's representative says on the phone that the crack is “normal settling and excluded.” The client wants a letter stating that the foundation has failed and the house is unsafe, to support a demand letter and to let her stop paying her mortgage.
1. What can you state with confidence, what must you avoid, and what measurements make the report defensible?
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Separate observation from conclusion. What you can state with confidence: the crack location, its width at the top course and where it tapers, the gap at the brick-to-trim joint, the hallway slope measured with a level and tape (7/8 inch over 20 feet), the diagonal crack at the door corner, the downspout discharging within 12 inches of the corner, and the negative grade of about 1 inch over 4 feet. Those are facts with numbers and photos, and they are the most useful thing you can give an engineer. What you must not state: that the foundation has failed, that the house is unsafe, or a cause. Failed and unsafe are engineering and legal conclusions, and a slab crack alone does not establish either. You can write that “the observed slope and the crack pattern at the exterior corner are beyond what is typical for cosmetic settlement and warrant evaluation by a licensed structural engineer,” which is a defensible statement about the need for evaluation rather than a diagnosis. Add the water-management observations as conditions you saw, not as the proven cause: negative grade and a downspout discharging at the affected corner are recognized contributors to foundation movement and are worth correcting regardless of the engineering outcome. Note that the slab is post-tensioned, so no one should drill, core, cut, or excavate at the foundation without the engineer's direction.
2. Explain why a structural engineer is the right referral and how you structure it, including any conflict-of-interest concern.
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A licensed structural engineer is the right referral because the questions - is this movement structural, is it ongoing, and does it meet the warranty's definition of a major structural defect - are outside your scope. Frame it for the client: ask for an evaluation of the brick crack, the floor slope, and the foundation, with a written report suitable for submission to the builder and the warranty provider; ask the engineer to state the measurements and whether the movement appears active. Give the client two or three names and let her choose, rather than steering her to one. If you have any relationship with an engineer you recommend - a friend, a frequent referral partner, a firm that pays you for inspections - disclose it in writing, because an undisclosed relationship is exactly what a builder will use to attack the report. Warn the engineer's office in advance that the foundation is post-tensioned so they bring the right equipment and do not cut or core. Tell the client the likely cost and timeline so she is not surprised, and note that the engineer's report will carry far more weight in a warranty claim than anything you can write. Your documented measurements and photos are the evidence package that makes the engineer's job possible.
3. The client is upset and wants the failed-foundation letter today. How do you respond, and what do you say about the mortgage and the arbitration clause?
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Respond within a day, in writing, with what you can do rather than what you cannot. Send an interim summary of observations - the measurements, the photos, the water-management notes - and say plainly that the engineer's evaluation is the next step and that you will not characterize the foundation as failed or the house as unsafe because that conclusion is not yours to make and would not hold up. Explain what such a letter would actually do: it would be attacked as outside your expertise, it could damage her credibility on the conditions you did document, and it does not substitute for the engineering report the warranty provider will expect. On the mortgage, be direct: withholding payments is a separate problem that will hurt her credit and is not a remedy under the warranty, and that is a question for her lender and an attorney. On the warranty book, point her to the 30-day written notice clause without interpreting it, and tell her to read the arbitration clause and get legal advice before she signs or files anything. Offer to coordinate with the engineer and to re-inspect after repairs. Keep the tone on her side of the table: you are not refusing to help, you are refusing to give her a letter that will not work.