Peeling epoxy on slabs coated without moisture testing
Why it happens here
Lower Mainland ground moisture pushes up through concrete all year, and it is worse in older McLennan North slabs with no vapor barrier. When a coating goes down over a damp slab, the moisture has nowhere to go and lifts the coating from underneath.
Our approach
We test every slab with a moisture meter before quoting. If readings are high, we use a moisture-tolerant primer or a breathable system. It costs more up front and it is the difference between a floor that lasts and one that peels in a year.