Roof assemblies are typically composed of which main components?

The main components of roof assemblies consist of the supporting structure, decking, and covering. The supporting structure refers to the framework that holds the roof in place, providing stability and support. This may include elements like beams and trusses, which bear the weight of the roof and any additional loads placed upon it.

Decking is the layer of material that forms the surface of the roof, providing a base for the covering. It can be made from a variety of materials, such as plywood or oriented strand board (OSB), and is essential for distributing the weight of the roofing materials and any potential snow or water load.

The covering is the outermost layer of the roof assembly, which protects the interior spaces from the elements. This could include shingles, metal, tiles, or membrane materials that offer waterproofing and insulation properties. Each of these components works together to create a functional and effective roofing system, ensuring durability and protection from environmental conditions.

Other options mention specific materials or components related to roofing, but they do not encompass the overall structure and function of a complete roof assembly.