Massachusetts Construction Supervisor License (CSL) Practice Test

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What is the minimum number of fasteners required per shake for wood shakes used as roof covering in 1 and 2 family dwellings?

1 fastener
2 fasteners
3 fasteners
4 fasteners

The correct answer is: 2 fasteners

The minimum number of fasteners required per wood shake used as roof covering for one- and two-family dwellings is two. This requirement is based on ensuring adequate attachment of the shakes to withstand wind uplift and other environmental factors that can affect the roofing material. Using two fasteners improves the overall stability and durability of the roof system. It helps prevent individual shakes from lifting or blowing off during strong winds, which can compromise the integrity of the roof and potentially lead to leaks or further damage to the underlying structure. The other options, specifying one, three, or four fasteners, do not align with the code requirements intended for effective installation practices. One fastener may not provide sufficient security, while three or four would exceed the requirements, leading to unnecessary extra labor or material costs without significant added benefits. Thus, two fasteners strike a balance between sufficient strength and efficient installation.