How Does Water Damage Affect Engineered Hardwood vs Solid?

Engineered hardwood has a thin real wood veneer over a core made of wood fibers or plywood. That core is vulnerable: when water soaks in, it swells, and the layers can separate, causing bubbles or peeling at the edges. The damage is often permanent because sanding the top layer won't fix the swollen core underneath.

Solid hardwood is one continuous piece of wood. It absorbs moisture slowly and tends to cup, warp, or buckle as the boards swell and shrink. After the wood dries, a pro can often sand the surface flat and refinish it, restoring the floor's appearance. But if the wood has cracked or rotted, replacement may be necessary.

If water has soaked into the subfloor or the damage covers a large area, a professional assessment is wise. A water damage pro can measure moisture levels in the wood and the subfloor, and determine whether drying and refinishing will work or if sections need replacing. They can also check for hidden damage under the floor.

For engineered hardwood, if the core has swollen or the veneer is lifting, replacement of affected planks is often the only realistic fix. For solid hardwood, a pro can evaluate whether the boards can be sanded flat and refinished, or if the swelling is too severe. In either case, the longer you wait, the more the damage spreads.

Prevention starts with addressing the source of water. Fix leaky pipes, seal around windows and doors, and maintain appliances like dishwashers and washing machines. In a humid climate, use dehumidifiers in basements and crawl spaces to keep moisture levels low. A small leak caught early can save you from a full floor replacement.

Consider placing mats at entryways and wiping up spills quickly. If you have engineered hardwood, avoid soaking mops and use a damp cloth instead. For solid wood, maintain a consistent indoor humidity to minimize expansion and contraction. Regular inspections of plumbing and roof flashing can catch problems before they reach your floor.