Alabama Contractors License Practice Exam

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Study for the Alabama Contractors License Test. Prepare with quizzes featuring flashcards and multiple-choice questions, each supported by hints and explanations. Equip yourself for exam success!

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What type of fasteners should be used for attaching metal roof panels?

Plastic
Galvanized
Brass
Stainless Steel

The correct answer is: Galvanized

Using galvanized fasteners for attaching metal roof panels is the preferred choice due to their excellent resistance to corrosion. Galvanized fasteners are coated with a layer of zinc, which provides a protective barrier against rust and degradation that can occur in outdoor environments, especially in humid and rainy conditions. Metal roof panels are often exposed to various weather conditions, and the longevity and durability of the roof installation can be significantly compromised if non-corrosive fasteners are used. Galvanized fasteners specifically are designed to withstand the elements, including moisture, which makes them ideal for this type of application. Other materials like stainless steel also offer good corrosion resistance but can be more expensive. Plastic fasteners, while lightweight and resistant to corrosion, may not provide the structural integrity needed for securing metal panels, especially under heavy winds. Brass, although it has some resistance to corrosion, is not suitable for roofing applications due to its potential for deterioration in a harsh environment. Thus, the choice of galvanized fasteners is critical for ensuring the structural integrity and longevity of a metal roofing installation.