Steam showers expose surfaces to sustained heat and high vapor pressure that standard bathroom waterproofing is not designed to handle. Without steam-rated waterproofing, vapor can migrate behind tile and finishes, leading to hidden moisture damage in wall framing, ceiling cavities, and subfloors over time.
ProLux steam shower waterproofing systems use bonded waterproof membranes and compatible substrates installed beneath tile on walls, ceilings, floors, niches, and benches to form a continuous vapor barrier. Seams, corners, and penetrations are sealed using waterproof joint tapes and preformed accessories to help limit pathways for steam and condensation to escape the enclosure.
Rather than relying on surface sealers or grout, the system manages moisture at the structural level where steam exposure is most intense. These steam-rated membranes also create a stable, tile-ready surface that supports long-term tile adhesion. Designed specifically for intermittent residential steam shower use, ProLux solutions provide comprehensive vapor control beneath finished surfaces.
