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Investigating salt water damages to Granite Floor Tile
QUESTION
Salt Water Damages to Granite Floor Tile - I have a granite flooring investigation where it is related to flood waters (salt) from Hurricane Sandy that was on the floor for some time and now the apartment complex shows some damage by way of flaking finish and degradation of some spots (it flakes off and shows efflorescence flaking up).ANSWER
ANSWER - We have investigated many projects throughout North America where there has been a water incident that allegedly caused damage to a natural stone. Many times there are no resultant damages, or the damages are clearly pre-existing.In some cases, because of how the stone installation was improperly constructed, there are resultant damages from the water incident. Some insurance companies don't take into consideration that there was defective workmanship and others do. The salt water is more problematic and can compound the problems.
There is no fast and easy answer. The only way to fully determine the cause of the damages and to determine how best to remediate it is to perform an intrusive inspection and perhaps substantiate the findings with laboratory testing.
2 thoughts on “Investigating salt water damages to Granite Floor Tile”
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I had a salt water reef tank sitting on a slab of granite. After years of wiping up spilled spots, my granite showed signs similar to the posters experience. It was almost like someone had spilled acid on it. For what it’s worth, my experience.
Prolong exposure of salt water can cause corrosion on granite that contains iron minerals. The good news is that the granite can be ground down and polished so it looks like new.