Hybrid flooring has quickly become a favourite among Australian homeowners, offering the best of both laminate and vinyl, durability, water resistance and a contemporary finish. However, an emerging issue across the industry has prompted an important installation update to help protect your investment.
The cause? Alkaline Hydrolysis. This is a chemical reaction that can occur when hybrid floors are installed directly over concrete slabs with high moisture and alkaline levels.
While it may sound complex, the solution is surprisingly simple. We now recommend installing a plastic underlay when laying hybrid flooring over concrete substrates. This creates a moisture barrier, reducing the risk of damage caused by excess moisture in the slab.
Why is this important?
Concrete can retain moisture for long periods, even after it appears dry. When hybrid flooring materials come into contact with elevated moisture (above 90% RH) and alkaline conditions (pH above 10), Alkaline Hydrolysis can occur. The result? Severe cupping or warping of your floors, often appearing 6 to 12 months after installation. In most cases, the only remedy is a complete floor replacement.
Fortunately, using a properly installed and cost-effective plastic underlay can significantly reduce the risk of this issue. It's a small addition that offers long-term peace of mind, helping to keep your hybrid floors looking flawless for years to come.
Note: If you're installing over existing hard surfaces like ceramic tiles or timber, an additional underlay is generally not required.
Have questions about your installation?
Our team is here to help. Get in touch for expert advice on how to ensure the performance and longevity of your hybrid flooring.
