Wood Destroying Organism (WDO) Home Inspection Practice Exam

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What is the function of the impervious chemical barrier created in soil treating?

To enhance soil chemistry
To prevent water penetration
To block termite entry
To promote plant health

The correct answer is: To block termite entry

The impervious chemical barrier created in soil treatment is specifically designed to block termite entry into structures. This barrier is applied around the foundation of a building and serves as a defensive measure against wood-destroying organisms such as termites. By using chemical agents that repel or kill termites, this barrier effectively prevents them from gaining access to the wooden elements of the structure, thereby reducing the risk of infestations that could lead to significant damage. This protective measure is crucial for maintaining the structural integrity of homes and buildings. It specifically targets the behavior of termites, which are notorious for entering homes through the soil. Therefore, the primary function of the barrier is to create a zone that termites cannot cross, ensuring that the property remains safe from their destructive activities.