Wood interacts naturally with water, expanding as it grows more humid and contracting as it dries. Use of expansion joints and special nailing techniques allows floorboards to adjust for some of the resulting movement. However, liquid spills or wide variations in humidity can have an impact on floors.

To reduce the risk of floorboard movement

• Keep relative humidity levels in your home between 40% and 50%. In summer when the air is humid, keep rooms well ventilated and use a dehumidifier if necessary. In winter when heating dries out the air, use a humidifier as required.

• Wash floors with a damp mop.

• Immediately clean up any liquids spilled on the floor.

• Avoid indoor rugs with undersides made of rubber or any other material that prevents air from circulating properly beneath the rug.