Steam rooms place extreme demands on construction materials due to sustained heat and high vapor pressure. Without proper spa waterproofing, vapor can migrate through grout lines, joints, and tile assemblies, eventually reaching wall framing, ceiling cavities, benches, and subfloors. Over time, this can lead to deterioration of structural materials and moisture-related damage outside the steam enclosure.
ProLux steam room waterproofing systems use steam-rated waterproof membranes and compatible substrates installed beneath tile on walls, ceilings, floors, benches, and seating areas. These components form a continuous vapor-tight barrier when properly detailed at seams, corners, and penetrations using waterproof joint tapes and accessories. Rather than relying on grout or surface sealers, the system controls moisture behind the finished surfaces where vapor exposure is most intense.
By sealing the entire enclosure, including overhead and horizontal surfaces, ProLux systems help prevent condensation from escaping into adjacent rooms. The membranes also create a stable, tile-ready surface that supports consistent tile adhesion while maintaining the clean, refined appearance expected in residential spa spaces.
