Massachusetts Unrestricted Construction Supervisor License Practice Test

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Prepare for the Massachusetts Unrestricted Construction Supervisor License Test. Study with flashcards and multiple-choice questions, each accompanied by hints and explanations. Ace your exam with confidence!

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What should be the minimum thickness of a waterproofing membrane applied to foundations?

15 mils
30 mils
60 mils
90 mils

The correct answer is: 60 mils

The correct choice of a minimum thickness of a waterproofing membrane applied to foundations is based on industry standards and practices that ensure adequate protection against moisture intrusion. A thickness of 60 mils is commonly recommended as it strikes a balance between effective barrier properties and practical application. Waterproofing membranes play a crucial role in safeguarding foundations against hydrostatic pressure and water seepage, which can compromise structural integrity and lead to mold growth or other moisture-related issues. A thickness of 60 mils provides sufficient durability and puncture resistance, making it suitable for a variety of conditions, including areas with high water tables. Thinner membranes may not provide the needed level of protection or could wear down more quickly, thereby increasing the risk of water-related problems. Conversely, excessively thick membranes, while potentially offering more protection, may not be practical for all applications, incurring unnecessary costs and complicating installation processes. Therefore, the 60 mil standard represents an effective compromise for waterproofing foundations.