Commonly known as “blue stain” may appear on logs that are milled or cut down. Sapstain can cause discoloration in a variety of colors such as blue, brown, and red. These logs should be properly sealed to prevent any further decay.

Brown rot is the most common sign of decay in a log home. When the rot begins to grow, it forms into white spots. However, these spots eventually turn brown and cause the infected wood to become soft. Over time, the wood will crumble.

Similar to brown rot, dry rot can grow and spread very quickly. The only difference is that dry rot infects dry wood and needs excess moisture to continue growing and spreading.