Like all wood products, bamboo flooring is sensitive to changes in moisture and humidity. In fact it is a fairly wide belief that bamboo is even more sensitive. To maintain stability in the floor, you need to maintain stability in the moisture level in the room, this is measured by relative humidity. Ideally, minimum relative humidity of 40% is needed to prevent gapping or cupping of the wood.
During or cold winters, the combination of low outdoor humidity, and the dryness caused by our heating systems will cause our houses to dry out. The following steps should be taken to minimize the negative effects that this condition will have on hardwood flooring:
1) Install a power humidifier on your furnace. Follow the manufacturer’s guidelines for cleaning, maintenance, and operation.
2) Set the furnace fan to run continuously at low speed. This will allow air to circulate throughout the house, and minimize condesation on the windows. Ceiling fans (if applicable) should also be operating.
3) Set the humidistat to 35%-40%. If you begin to have a problem with condensation on the windows, adjust this downward.
By maintaining humidity and circulation you will not only minimize seasonal changes in your floor, you will also create a much more comfortable environment.