Massachusetts Unrestricted Construction Supervisor License Practice Test

Question: 1 / 400

What is the maximum allowed number of layers of any type of roof covering on a single-family dwelling?

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In Massachusetts, building codes specify that the maximum number of layers of roof covering permitted on a single-family dwelling is two. This regulation is in place primarily for safety and structural integrity reasons. Having too many layers can lead to issues such as excessive weight on the structure, which may compromise the roof's ability to perform well over time, especially under harsh weather conditions. Additionally, more layers can trap moisture, leading to potential rot or decay beneath the surface, which can further jeopardize the roof's integrity.

By limiting the number of layers to two, it ensures that the roof remains both functional and safe, providing adequate protection while allowing for maintenance and effective drainage. This regulation helps ensure the longevity and reliability of roofing systems in residential buildings.

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