Laminate flooring cores are typically made of high-density fiberboard, which is composed of wood fibers pressed together with resin. While the surface wear layer is moisture-resistant, the edges are vulnerable points. If liquid pools on the surface and seeps into the joints, the HDF core absorbs the moisture and expands. This process, known as swelling, is irreversible. To mitigate this risk, keep floors dry, wipe up spills immediately, and ensure the room's humidity is kept within the manufacturer’s recommended range to prevent long-term edge degradation.
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Can excessive moisture cause edge swelling in laminate planks?
Yes, excessive moisture is the primary cause of edge swelling in laminate planks. If water penetrates the joints and reaches the HDF (high-density fiberboard) core, the material expands and causes the planks to lift, creating permanent damage along the board edges.