A moisture mitigation coating is a liquid-applied epoxy, polyurethane, or silicate barrier rolled or troweled onto concrete to block vapor emission when a slab tests wetter than the flooring adhesive or finish can tolerate. They cost more than simply waiting for the slab to dry, and they’re worth that premium mainly when waiting isn’t an … Read more
When a slab tests wetter than a wood floor’s 75-80% relative humidity limit, there are exactly three honest paths forward: wait longer and retest, install a moisture mitigation system so flooring can go down anyway, or choose a material that does not care how wet the slab still is. Every other suggestion is a variation … Read more
A hollow sound usually means the floor has lost contact with what it was glued or nailed to. On a slab, that almost always traces back to two things: how much moisture was still leaving the concrete when the floor went down, and how much the wood or engineered wood has shrunk since, especially through … Read more
An ASTM F2170 probe measures the relative humidity of the air trapped inside a hole drilled into concrete — not the surface, not a quick moisture-meter guess, but the actual humidity of the pore air deep in the slab. Probes go in at 40% of the slab’s thickness because that depth predicts what the concrete … Read more
There’s no fixed number of days. A new Utah slab is ready for flooring when a moisture test says so, not when a calendar does. Most pours need somewhere between a few weeks and several months, and the only honest way to know for a specific slab is an ASTM F2170 in-situ relative humidity test, … Read more