*Further Research*

After summarizing all the results of the research, some initial aims were completed. However, other issues remain outstanding. All research projects lead to other starting points for new research. These are the pending aims:


These research opportunities should be explored, taking advantage of professional tools like Energy Plus, Open Studio, and SGSAVE. These are the initial steps of constructing a complete energy certification for Mexico, but there is more work to be done. In Critical Features of Energy Simulation for Single Housing, the authors explained: "These results are useful and beneficial for making certifications, comparing with previous references, checking other alternatives, developing individual and global improvements. Some results allow the integration of costs, make comparisons from a base case or consecutive simulations" [49].

**Author Contributions:** Conceptualization, All authors; Methodology, A.J.G.D.; Validation and Formal Analysis, all authors; Investigation, Resources, and Data Curation, A.J.G.D.; Writing—Original Draft Preparation, A.J.G.D.; Writing—Review & Editing, Visualization, Supervision, all authors. All authors have read and agreed to the published version of the manuscript.

**Funding:** This research received no external funding.

**Institutional Review Board Statement:** Not applicable.

**Informed Consent Statement:** Not applicable.

**Data Availability Statement:** Not applicable.

**Conflicts of Interest:** The authors declare no conflict of interest.

## **Abbreviations**

The following abbreviations are used in this manuscript:


