It can. It very much depends on the choices you make. For instance, if you choose vinyl siding, a foam-backed option is the superior choice for energy efficiency. Steel siding is also an excellent choice for energy efficiency. During a free siding consultation, we can educate you with the specifics for the siding you are considering. A good rule of thumb is to ask about the R-Value of any siding you are considering. The higher the R-Value, the more energy efficient the siding is.