Vinyl Tips Rugs To prevent slippage of area rugs, use an approved vinyl rug underlayment Furniture Legs Use floor protectors Wide leg bases/rollers to minimize indentations and scratches from heavy objects The heavier the object, the wider the floor protector Humidity Maintain a normal indoor relative humidity level between 35% and 65% throughout the year Maintaining humidity will minimize the natural expansion and contraction Wet Season An air conditioner, dehumidifier, or periodically turning on your heating will help to maintain humidity levels during summer months Dry Season A humidifier is recommended to prevent excess shrinkage due to low humidity levels. Wood stove and electric heat tend to create very dry conditions