**Introduction** Moisture Mapping is a critical process for maintaining the health and longevity of wooden structures. By accurately measuring and monitoring wood moisture content, we can identify areas prone to decay, damage, or structural failure. This allows us to take preventative measures and extend the lifespan of our wooden assets. **Wood Moisture Content** Wood moisture content refers to the amount of water present within the wood's pores and cell walls. It is expressed as a percentage of the dry weight of the wood. **Why is Moisture in Wood Bad?** Excessive moisture in wood can lead to a range of detrimental effects, including: * **Decay:** Water provides a breeding ground for fungi and bacteria that cause wood to rot. * **Cracking:** As wood dries and shrinks, it can develop cracks and splits. * **Warpage:** Moisture can cause wood to warp or buckle, distorting its shape and compromising its structural integrity. * **Insect Infestation:** Moist wood attracts insects that can further damage the structure. * **Corrosion:** Moisture can promote corrosion of metal fasteners and fixtures in contact with wood. **Importance of Moisture Mapping** Moisture Mapping plays a crucial role in preventing these detrimental effects by: * **Identifying Moisture Problems:** It helps identify areas with high moisture content, allowing us to address the underlying causes. * **Monitoring Wood Drying:** Moisture Mapping helps monitor wood drying after construction or repair, ensuring it reaches appropriate moisture levels. * **Preventing Damage:** By identifying moisture problems early, we can prevent costly damage and repair work.