Over my four-plus decades in the
flooring industry I have seen many changes in the way we prepare for the
installation of flooring materials. I have observed calcium chloride testing
done under a glass dome, bond tests, rubber matt tests, plastic sheet tests,
phenolphthalein, calcium carbide bomb tests, moisture meter testing (both
destructive and non-destructive), calcium chloride MVER tests, and now the
internal relative humidity (in-situ) tests.
These tests represent subjective, quantitative and qualitative types of
testing. After all these years the question persists: Which type works best?