Excess moisture from concrete subfloors can cause serious problems with all types of flooring. These range from aesthetic problems to health and safety hazards. Here are four ugly consequences when moisture is trapped beneath a flooring system.

The wedi Vapor 85 is a variant of the wedi Building Panel and is designed for installations in steam showers and steam rooms. It serves as a strong vapor retarder and exceeds the minimum requirements set by the Tile Council of North America (TCNA) for vapor retarders used in continuous steam rooms.

The C555 Electronic Concrete Moisture Meter from Wagner Meters gives you a speedy indication of high and low moisture zones in a concrete slab. This capability gives you optimal targeting of areas to place ASTM F2170 in situ probe sensors.

USG Durock™ Brand Liquid Waterproofing and Crack Isolation Membrane is a liquid-applied waterproofing and crack isolation membrane and vapor retarder for use in both residential and commercial tile and stone applications. It is ideal for waterproofing floors and walls in showers and other wet areas.

Skudo Universal Plus from Tenax is a strong, water-based sealer that provides excellent water-oil stain protection, which is ideal for compact material and stones that are hard to seal. It does not change the appearance of the material and won’t alter the natural breathability of the stone.

The luxury of floor warming can now extend right into tiled showers. Schluter-Systems’ Ditra-Heat Installation Handbook now includes a detail for installing and waterproofing Ditra-Heat on shower floors. Approval must be verified by the appropriate local authority.

Prova Pan-Multi® system is a pan, pan liner and extension kit that is typically used for curbed or curbless shower installations. The complimentary Prova-Mat Pan Liner® component ensures a waterproof seal, provides a vapor barrier ideal for steam room applications, and is ICC-ES-certified.

The new, patented multifunctional membrane by Progress Profiles, Prodeso Drain, creates perfect waterproofing, draining and long-lasting floors. It’s composed of a high-density polyethylene sheet provided with 4.5-mm-high truncated cone reliefs with a semicircular base.

Strataflex® peel-and-stick sheet membrane from NAC Products is designed for use on interior or exterior floor surfaces that require waterproof protection. Strataflex® is installed with an NAC primer, features a 2-inch double stick lap joint that creates a water-tight seal and is ready for flooring installation as soon as it is applied.