If you have your concrete slab foundation inspected by either a repair contractor, or better yet, an independent professional structural engineer, you are likely to get an elevation report produced by one of two tools:
A Compu Level or a manometer. When I had my inspection done, the engineer used a Compu Level. I received a report that detailed variances in elevation from one end of my slab to the other. For example, there was a 3-4 inch drop in one corner of the house when compared to the center of the slab.
Nice to know. I suppose. But in practical terms, what does that really tell you? Unless you have a benchmark of some kind to compare the readings against, not a whole lot. Do I have elevation readings from when the slab was newly poured? No. (more…)