If a building is suspected of having a pyrite problem some of the typical observable signs are:

  • Heaving (lifting) of a floor slab resulting in slopes and cracks.
  • Cracks to concrete floors/tiles.Uplift at external door thresholds.
  • Doors catching on floors.
  • Cracks over doors on internal walls.
  • Ground floor stud partitions with cracks, bulging of plasterslabs.
  • Horizontal cracking externally at DPC level.