What Is Crowning in Hardwood Floors After Water Damage?

Crowning starts when water penetrates hardwood from below or above. The middle of each board absorbs more moisture than the edges, which are often held down by the subfloor or adjacent planks. As the wood swells, the center rises above the edges, creating a convex shape.

This effect becomes most visible after the surface dries. If the top face dries faster than the bottom, the edges shrink and pull downward, leaving the center raised. In a humid climate like Cypress, slow drying can make the condition linger or worsen.

Common causes include leaks from appliances, pipes, or roofs, as well as flooding from storms. Water can seep into the subfloor and wick upward into the hardwood, causing uneven swelling. Poor ventilation or high humidity can also keep moisture trapped inside the wood.

In some cases, sanding the floor while it is still damp can force the edges down and push the center up, creating crowning that lasts until the wood fully dries. Acting quickly to dry the area can reduce the risk, but the source of moisture must be stopped first.

Start by stopping the source of water and removing any standing water from the floor. Use fans and dehumidifiers to dry the area slowly, but do not sand or refinish until the wood is fully dry. If you live in Cypress, keep your shutoff valve location written down for quick access during leaks.

Document the damage with photos and notes for your insurance claim. Then contact local water damage pros to assess the moisture levels and recommend the next steps. They can also help with water damage cleanup and decide whether the flooring needs removal.

• Stop the water source immediately
• Remove standing water with towels or a wet vacuum
• Set up fans and a dehumidifier to dry the area
• Do not sand or refinish until the wood is dry
• Take photos and notes for your insurance claim
• Call the pros for a moisture assessment