Installing Luxury Vinyl Plank (LVP) over a concrete slab in Austin requires proper moisture mitigation and subfloor preparation. Concrete slabs must be clean, dry, and flat within 3/16 inch over a 10-foot radius. Due to local humidity and hydrostatic pressure, a 6-mil polyethylene moisture barrier is essential. Proper expansion gaps and self-leveling underlayment are critical to prevent cupping, buckling, and long-term flooring failures.
In Austin and Central Texas, concrete slabs are extremely common due to the soil types and climate. High humidity levels and temperature fluctuations require careful moisture testing and mitigation before installing LVP. It's crucial to check for hydrostatic pressure and use appropriate moisture barriers (like a 6-mil poly film) to prevent cupping, buckling, or mold growth under the flooring.