What is the most common type of decay fungi found in wood in houses?

The most common type of decay fungi found in wood in houses is brown rot. Brown rot specifically attacks the cellulose and hemicellulose found in wood, leaving behind the lignin, which gives the wood a brownish coloration and a characteristic crumbly texture. This type of decay is particularly problematic in building structures because it can lead to significant structural weakening without the homeowner noticing initial signs of damage.

Brown rot is prevalent in environments that are conducive to its growth, such as areas with high moisture levels. It often affects softwoods, which are commonly used in construction, making it a leading concern for pest control professionals. Understanding this type of decay is crucial for implementing effective prevention and treatment strategies against termites and other wood-destroying organisms.