Before you coat concrete, especially with horizontal surfaces, you must conduct a concrete floor moisture test. Concrete slabs appear to be hard and solid, yet in reality, concrete is porous and moist stuff. Concrete is a reasonably universal material for construction projects. In most offices and homes, concrete is used for subfloors and foundations, plenty of buildings even use concrete for major load-bearing walls. With concrete being a usual building material, professionals in the restoration, construction, and home inspection industries all need to detect moisture accurately in the concrete.