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What is the minimum required distance between untreated wood and masonry surfaces?

  1. 1/4 inch

  2. 1/2 inch

  3. 3/4 inch

  4. 1 inch

The correct answer is: 1/2 inch

The minimum required distance between untreated wood and masonry surfaces is established to prevent moisture from the masonry from coming into direct contact with the wood. This distance is important because untreated wood can easily absorb moisture, which may lead to wood decay, warping, or infestation by pests such as termites. Maintaining a space of at least 1/2 inch creates a barrier that allows for ventilation and helps to minimize moisture retention around the wood. This practice is commonly recommended in building codes and construction best practices to promote longevity and durability of construction materials.