Engineered wood is composed of layers bonded together. While more stable than solid wood, it remains highly sensitive to moisture and extreme heat. Steam mops work by forcing pressurized steam into the surface; this moisture can seep into the joints or the edges of the veneer, causing the wood to expand and the layers to separate. Most manufacturers explicitly void their warranties if a steam mop is used. Stick to dry cleaning methods or light misting with a manufacturer-approved wood cleaner instead.
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Can I use steam mops on engineered wood floors?
Steam mops should generally not be used on engineered wood floors. The high heat and moisture associated with steam can penetrate the wood's veneer, leading to finish clouding, wood swelling, delamination of the plies, and potential structural failure of the floor.