Compliance Energy Code Tools
The Energy Systems Laboratory of the Texas A&M University accepts the following software for building energy code compliance.
| Construction | Energy Code | Path | Software |
|---|---|---|---|
| Residential Detached one- and two-family dwellings and townhouses not more than three stories above grade plane in height with a separate means of egress |
2009 IRC (Chapter 11, Energy Efficiency) |
Prescriptive Path | REScheck™ a |
| Performance Path (using the 2009 IECC, Chapter 4) | IC3 REM/Rate® b EnergyGauge® b |
||
| Residential R-3 (except single-family) and R-2 and R-4 of three stories or less |
2009 IECC (Chapter 4) |
Prescriptive Path | REScheck™ a |
| Performance Path | IC3 REM/Rate® b EnergyGauge® b |
||
| Residential R-2 and R-4 of four stories or more |
2009 IECC (Chapter 5) / ASHRAE 90.1-2007 |
Prescriptive Path | COMcheck™ a |
| Performance Path | None | ||
| Commercial | 2009 IECC (Chapter 5) / ASHRAE 90.1-2007 |
Prescriptive Path | COMcheck™ a |
| Performance Path | None |
a. REScheck™ and COMcheck™ are total UA alternative paths.
b. Only in conjunction with the ENERGY STAR program.
Available for download:
- Current Building Energy Codes and Compliance Tools
- Energy Systems Laboratory's letter on Acceptable Compliance Software
Compliance Software
COMcheck™ software, manual code compliance, and reference guides simplify and clarify commercial and high-rise residential energy code compliance. Forms and checklists are included for documenting compliance.
REScheck™ was developed to simplify and clarify code compliance with the IECC and a number of state codes. The REScheck residential compliance materials offer two ways to demonstrate compliance: the trade-off approach and the prescriptive packages approach.
EnergyGauge is a family of PC software tools that allow simple yet detailed performance-based analysis of building energy use and perform economic analysis of proposed energy improvements.
REM/Rate™ software calculates heating, cooling, hot water, lighting, and appliance energy loads, consumption and costs for new and existing single and multi-family homes.
IC3 is a web-based software tool designed to provide a simulated performance of energy code compliance for single family residential construction. This software tool has been developed by the Energy Systems Laboratory (ESL) at Texas A&M University. The tool can capture quantitative above-code compliance as well as emissions reduction credits for the State Implementation Plan (SIP).
BestPractices Software Tools is a DOE BestPractices web page offering a varied and expanding software collection. With the right know-how, you can use these powerful tools to help identify and analyze energy system savings opportunities in your plant. Software tools are accessible here for download.
Building Energy Software Tools Directory is a DOE site offering software tools for evaluating energy efficiency, renewable energy, and sustainability in buildings. The energy tools listed in this directory include databases, spreadsheets, component and systems analyses, and whole-building energy performance simulation programs.


