Large patches cover each face of the Bent Pyramid. Research suggests thermal expansion forces casing stones outward and toward corners over centuries. Patches cluster between courses 20 and 45—a pattern that may correlate with structural anomalies detected by pyramid surveys. Patched sections may experience additional erosion when rainwater becomes trapped behind patches without drainage outlets.
Key facts claimed:
- Thousands of patches exist on each pyramid face
- Patched sections experience additional erosion when rainwater becomes trapped behind patches which have no outlets
- Engineer Peter James concluded thermal expansion forces casing stones outward and toward corners over time
- The large patches are overwhelmingly concentrated between courses 20 and 45, away from corners
- The distribution of large patches matches exactly with the bulging pattern detected by 2014 PBS documentary laser scan