General Contractor Practice Exam

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What is the minimum size requirement for weep holes in a masonry wall?

1/8 inch
3/16 inch
1/4 inch
1/2 inch

The correct answer is: 3/16 inch

The minimum size requirement for weep holes in a masonry wall is generally established to ensure adequate drainage of water that might accumulate within the wall system. A size of 3/16 inch aligns with standard practices and building codes to effectively allow moisture to escape without compromising the structural integrity of the masonry. This size is sufficiently small to prevent pests from entering while still large enough to permit effective water drainage. Weep holes serve a crucial function in managing water by facilitating drainage, thereby protecting the wall from water damage and reducing the risk of mold growth. Maintaining this minimum size is essential to achieve the desired balance between preventing water accumulation and keeping unwanted insects or debris out of the masonry structure. It’s important for contractors to adhere to these specifications in order to ensure the longevity and durability of masonry constructions.