Red Seal Sheet Metal Worker Practice Exam

Which of the following is often used for roofing in metal construction?

1. Galvanized steel

2. Vinyl sheeting

3. Transparent panels

4. Cement tiles

The correct answer is: Galvanized steel

Galvanized steel is often used for roofing in metal construction due to its durability, corrosion resistance, and strength. The process of galvanization, which involves coating steel with a layer of zinc, enhances the steel's ability to withstand the elements, making it ideal for protecting buildings from water and weather damage. Additionally, galvanized steel roofing comes in a variety of profiles and finishes, allowing for a wide range of aesthetic choices while providing the necessary structural integrity. It is also relatively lightweight compared to other roofing materials, which contributes to easier installation. While other materials such as vinyl sheeting, transparent panels, and cement tiles are used in different applications, they do not offer the same balance of durability, weather resistance, and structural capability that galvanized steel provides for roofing in metal construction.