To limit the probability that the energy model calculation method will not account for surface area, emissivity and effective thermal resistance of walls, fenestration, roof-ceiling assemblies and exposed floors, which could lead to inaccuracy of the model, which could lead to overestimation of the energy used by the reference building or underestimation of the energy used by the proposed building, which could lead to excessive use of energy, which could lead to an unacceptable effect on the environment.