Wood Moisture Meter - Wood Moisture and Indoor Environment
In the indoor environment where people live, the humidity should not fluctuate too much, and should be stable within a certain range, which is very beneficial to personal health and the preservation of objects. Research data show that: the relative humidity range for preventing wet mold is 0-80%; for preventing insect damage, it is 0-70% or 80-100%; for preserving books, it is 40-60%; for preventing bacterial infection, it is 55-60%; The lowest rate is 60-70%, and the relative humidity of the human living environment should be around 60, which is more suitable.
There are many factors that cause changes in indoor humidity, for example: external temperature changes or indoor temperature changes will cause humidity changes; water vapor flowing in or out from the transom or ventilation openings, water vapor penetrating through the wall, water vapor coming in from the kitchen, etc. It can also cause changes in humidity.
The humidity-regulating property of wood is one of the unique properties of wood, and it is also the advantage of it as an interior decoration material and furniture material. The humidity change of houses decorated with wood or wood materials is much faster than that of concrete houses or houses decorated with wallpaper. Small. The so-called moisture-regulating characteristics of wood is to directly alleviate the humidity change of the indoor environment by the moisture absorption and desorption of the wood itself. When the relative humidity of the indoor environment decreases, the water vapor partial pressure balance between the indoor environment and the wood is broken. The water vapor partial pressure inside the wood is higher than that of the indoor environment, and the moisture inside the wood will escape. Increase the relative humidity of the indoor environment, which is the desorption process. Conversely, when the relative humidity of the indoor environment increases, wood will absorb moisture from the indoor air, which is a hygroscopic process. At the beginning of the desorption or moisture absorption process, the wood proceeds very strongly, after which it gradually slows down until a new dynamic equilibrium is reached. Here wood acts as a storage of moisture, just like a natural regulator of indoor air humidity. People have been accustomed to living in the environment of wooden furniture and wooden interior decoration materials for a long time.
