What is the primary advantage of a steel stack compared to a reinforced concrete stack?

The primary advantage of a steel stack compared to a reinforced concrete stack is indeed related to cost. Steel stacks are generally less expensive to manufacture and install than reinforced concrete stacks. This is due to several factors, including the material costs and the simpler, faster construction methods typically associated with steel.

Steel is lighter than concrete, which can reduce the structural supports needed, leading to lower overall construction expenses. Furthermore, the fabrication of steel components can be completed off-site, leading to reduced labor costs and shorter project timelines.

While durability, maintenance, and lifespan are important considerations in the choice between materials, the initial investment associated with steel stacks often makes them more attractive from a financial standpoint. For example, while steel stacks can be durable, they may also require protective coatings or treatments to prevent corrosion, which can influence maintenance costs over time. In contrast, reinforced concrete tends to be heavier and may have higher construction costs, even if it offers benefits in certain applications in terms of fire resistance and longevity.