Saunas are regularly exposed to steam, heat, and moisture from condensation and cleaning, all of which can migrate through seams, joints, and unprotected surfaces. Without proper sauna waterproofing, water can reach the subfloor and concealed structural components, leading to weakening materials, mold growth, and costly repairs over time.
ProLux sauna waterproofing systems use durable waterproof membranes and compatible components designed to be installed beneath finished surfaces, particularly on sauna floors and at critical transitions. These membranes form a continuous moisture barrier that helps block condensation and runoff before it reaches the subfloor. When properly detailed at joints, corners, and edges, the system helps manage moisture where it is most likely to accumulate.
By combining waterproof floor protection with sealed transitions and surrounding surfaces, ProLux systems help convert a moisture-sensitive environment into a protected, easy-to-maintain sauna space. The result is a sauna that remains structurally sound and better equipped to handle regular use without hidden moisture damage.
