What are the main concerns when repairing hardwood floors after water exposure?

When addressing the repair of hardwood floors that have been exposed to water, the primary concerns revolve around how water can physically alter the wood. Warping, cupping, or buckling frequently occurs because hardwood is a natural material that absorbs moisture, leading to dimensional changes. When the wood swells due to excess moisture, it may expand unevenly, causing the planks to deform. Cupping is a specific phenomenon where the edges of the planks rise above the center, which is often visible and detrimental not just to aesthetics but also to the structural integrity of the floor.

This concern takes precedence over scratching and scuffing, as those issues are typically less severe and may be managed separately from moisture-related damage. Discoloration and fading of the finish can also occur, but these effects are often more cosmetic and may not compromise the actual functionality of the hardwood itself. Mold growth beneath the surface is a valid concern, but it generally emerges as a secondary issue, particularly if excessive moisture remains trapped. Thus, while all these factors are relevant, the primary focus remains on the physical changes to the wood structure associated with water exposure, making warping, cupping, or buckling the critical issues in hardwood floor repair.