What is the role of the subfloor in a building?

The role of the subfloor in a building is primarily to provide a stable base for the finished flooring. The subfloor is typically constructed of plywood or oriented strand board (OSB), and it gives structural support and helps distribute the weight of the flooring materials above it. It also provides a level surface that is crucial for the installation of various types of flooring, such as tile, carpet, or hardwood.

A subfloor is essential for ensuring durability and comfort in a building’s flooring system. It acts as a barrier to moisture and can help reduce noise transmission between floors. By fulfilling these functions, the subfloor enhances the overall performance and longevity of the flooring materials placed on top of it.