Wood Destroying Organism (WDO) Home Inspection Practice Exam

True or False: Persistent wetting of exterior wood by lawn sprinklers creates a high potential for decay.

1. True

2. False

3. Only when wood is untreated

4. Only if the wood is painted

The correct answer is: True

When exterior wood is consistently wet, particularly due to sources like lawn sprinklers, it significantly increases the likelihood of decay. This occurs because moisture provides an ideal environment for fungi, which are the primary agents responsible for wood decay. Moist wood is more susceptible to attack by these organisms, leading to structural damage over time. The potential for decay is exacerbated if the wood is untreated, as untreated wood lacks protective chemicals that can help fend off moisture absorption and the ravages of mold and fungi. However, even treated or painted wood can suffer from decay if the protective barriers are compromised and water still penetrates the material. Therefore, persistent wetting is a key factor in decay, making the statement true regardless of the treatment or paint on the wood. Understanding this principle is crucial for home inspectors and property owners alike, as it emphasizes the importance of proper landscaping and water management to protect wooden structures from moisture-related deterioration.