Comcheck Blog (2025)

Navigating commercial energy code compliance can feel like deciphering a complex code. If you’re a contractor, builder, or architect wrestling with Comcheck reports, you’re not alone. Let’s delve into the top 3 problems people face with Comcheck and explore practical solutions.

What is Comcheck?

Comcheck is a software tool provided by the Department of Energy to demonstrate compliance with commercial energy codes. It’s crucial for obtaining building permits and ensuring your commercial projects meet energy efficiency standards.

What is a Comcheck Report?

1. Comcheck Failing: Why Your Report Isn’t Passing & How to Fix It

A failing Comcheck report can lead to project delays and costly revisions. Understanding why your report isn’t passing is the first step to fixing it.

Common Reasons for a Failing Comcheck:

• Incorrect Input Data: Errors in entering insulation values (R-values), window U-factors and SHGC ratings, lighting power densities, or building dimensions are frequent culprits.
• Omitted Building Components: Forgetting to include details about mechanical systems, lighting controls, or even the correct climate zone can significantly impact the outcome.
• Unrealistic Assumptions: Estimating insulation values, lighting power densities, or mechanical system performance without accurate manufacturer specifications can lead to discrepancies.
• Climate Zone Miscalculations: Choosing the wrong climate zone will invalidate the Comcheck.
• Incorrect Envelope or Lighting Data: The envelope and lighting sections of the Comcheck are often complex and require detailed data.

How to Fix a Failing Comcheck:

• Double-Check All Input Data: Meticulously review every value entered, comparing it to manufacturer specifications and construction plans.
• Verify Climate Zone: Ensure you’re using the correct climate zone based on your project’s location.
• Use Accurate Insulation Values: Rely on tested R-values from reputable sources.
• Use Correct Window and Door Data: Ensure you use the correct U-factor and SHGC numbers, and make sure that the data is from NFRC certified windows and doors.
• Accurate Mechanical and Lighting Data: Double check all mechanical and lighting data.
• Consider Professional Comcheck Services: If you’re consistently struggling, consider hiring a professional who can provide accurate calculations and identify potential issues.  www.Comcheck.net offers low cost comchecks quickly.  Email pdf plans jobsite address, and square footage to comcheck@comcheck.net to get one started.

Comcheck Energy Report FAQ

2. Comcheck Software Options: Which One to Choose?

Navigating the world of Comcheck software can be overwhelming. With various options available, it’s crucial to select the right tool for your needs.

Popular Comcheck Software Options:

• Comcheck Web: The free, online tool provided by the Department of Energy. It’s user-friendly for basic projects but may lack advanced features.
• Comcheck Desktop: The downloadable software version, offering more features and customization options. However, it requires installation and may have a steeper learning curve.  Also it is missing many recent code updates.

Choosing the Right Software:

• Project Complexity: For simple commercial projects, Comcheck Web may suffice. For complex designs, Comcheck Desktop is usually necessary.
• User Experience: Evaluate the software’s interface and ease of use. If you’re not tech-savvy, a user-friendly interface is essential.
• Support and Resources: Look for software with comprehensive documentation, tutorials, and customer support.
• Cost: Comcheck software is free to use.

3. How to Complete a Comcheck: Step-by-Step Guide

Completing a Comcheck doesn’t have to be daunting. Follow these steps for a smoother process:

Step-by-Step Comcheck Guide:

1. Gather Project Information: Collect all necessary data, including building dimensions, insulation values, window and door specifications, mechanical system details, lighting power densities, and climate zone information.
2. Select the Appropriate Software: Choose a Comcheck software option that aligns with your project’s complexity and your technical skills.
3. Input Building Data: Accurately enter all project data into the software, paying close attention to unit measurements and specifications.
4. Review and Verify: Double-check all entered data for accuracy and completeness.
5. Generate the Report: Generate the Comcheck report and carefully review the results.
6. Address Any Issues: If the report fails, identify the causes and make necessary corrections.
7. Submit the Report: Submit the compliant Comcheck report to the relevant building department or authority.

Comcheck Energy Code Chart (2025)

Key Takeaways:

• Accuracy in data entry is paramount for a successful Comcheck.
• Understanding the climate zone is essential.
• Comcheck software is a valuable tool for demonstrating energy code compliance.

By understanding the common pitfalls and following these solutions, you can streamline the Comcheck process and ensure your commercial projects meet energy compliance standards.

If you need a Comcheck and want to side step any of these issues then email pdf plans, jobsite address, and square footage to Comcheck@Comcheck.net and we will get you taken care of.

DOE Transition: Comcheck.net Fills the Support Gap

The Department of Energy (DOE) is currently undergoing a leadership transition, and as a result, their external communications, including the crucial help desk, have been temporarily paused. This pause, as indicated in a recent email from BECP Technical Support, leaves many builders, contractors, and homeowners facing uncertainty regarding Comcheck compliance.

This was the message that a Comcheck blog reader received while asking for help from the DOE help desk during a recent Comcheck Web software outage.

The DOE’s Message:

“DOE is in the process of transitioning leadership. We have received guidance to pause all external communications. This includes help desk inquiries. We apologize for any inconvenience this causes, and we appreciate your patience as we continue to receive further guidance. We will provide a notice as soon as communication resumes.” – BECP Technical Support

This temporary halt in support can create significant challenges for those needing immediate assistance with Comcheck calculations and compliance questions. However, don’t worry! Comcheck.net is here to bridge the gap and provide you with the resources you need.

Comcheck Energy Report FAQ

What is Comcheck and Why is it Important?

Comcheck is a software tool used to demonstrate compliance with energy codes for commercial buildings. It’s a critical step in the building permit process, ensuring that new constructions and renovations meet energy efficiency standards. During the DOE’s communication pause, navigating Comcheck requirements can seem daunting.

Comcheck.net: Your Reliable Alternative

While the DOE’s help desk is temporarily unavailable, Comcheck.net offers a wealth of information and resources to help you through the process. Here’s how we can assist you:

What is a Comcheck report?

• Comprehensive Comcheck Guides: Our website provides detailed guides and tutorials on how to use Comcheck software effectively. Whether you’re a beginner or an experienced user, you’ll find valuable information to help you generate accurate reports.
• Frequently Asked Questions (FAQs): We’ve compiled a comprehensive list of frequently asked questions to address common Comcheck issues. Find answers to your questions quickly and easily.
• Expert Tips and Best Practices: Learn from industry experts and discover best practices for ensuring Comcheck compliance. Our tips will help you avoid common pitfalls and streamline the process.
• Comcheck Software Information: We offer information on the different versions of Comcheck software and how to access them.
• Understanding Energy Codes: Gain a better understanding of the energy codes that Comcheck helps you comply with. This knowledge will empower you to make informed decisions about your building projects.
• External Comcheck Services: We can connect you with outside Comcheck services that can create your Comcheck reports for you.  If you need a Comcheck created at anytime email pdf plans, jobsite address, and square footage to Comcheck@Comcheck.net and we will get you taken care of.

Navigating the DOE Transition Period

Comcheck Energy Code Chart (2025)

The DOE’s leadership transition is a temporary situation, and communication will resume eventually. In the meantime, Comcheck.net is dedicated to providing you with the support you need.

Don’t let the DOE’s communication pause delay your project. Visit Comcheck.net today for the resources and support you need to ensure Comcheck compliance. Stay informed and prepared during this transition period. We can also create a Comcheck for you. We need PDF plans, jobsite address, and square footage. You can email that information to Comcheck@comcheck.net and we will get you taken care of.

Stay Updated:

We will continue to monitor the situation and provide updates as soon as the DOE resumes communication. Check back regularly for the latest information.

Comcheck Web is back after Page Not Found Outage

Comcheck Web is Back Online! Post-Unannounced Outage Update

By Jobe Leonard, Comcheck.net – Your Resource for Energy Compliance

We’re pleased to announce that Comcheck Web is once again operational following an unexpected outage. As your reliable source for Comcheck information, we understand the disruptions these issues can cause and are committed to keeping you informed.

The Outage and Our Prediction

As many of you observed, Comcheck Web experienced an outage, resulting in a “Page Not Found” error. We immediately addressed the situation on our Comcheckpert blog (or similar name), providing insights and potential timelines. Based on the Pacific Northwest Laboratory’s operating hours, we predicted that the service would likely be restored around lunchtime in the Eastern Time Zone.

True to our estimate, Comcheck Web returned online around that time.

Restoring Service and Updating Reports

With Comcheck Web now functioning, our team is focused on processing pending Comcheck reports and ensuring reports are aligned with the latest energy codes, including IECC 2018, IECC 2021, and preparing for the upcoming IECC 2024 Comcheck standards.

Unannounced Outages: A Significant Challenge

This particular outage lasted about hours, which is typical for Comcheck Web disruptions.  From my personal experience with Comcheck Web maintenance I see them lasting from 12-18 so this one was a bit shorter.  However, the lack of prior notification created significant challenges. When Comcheck Web developers provide advance notice, we promptly relay that information to our readers via the Comcheckpert blog. Unannounced outages disrupt project timelines and cause unnecessary delays.

Can I Do My Comcheck Myself? (Step-by-Step Guide)

While Comcheck Web is now accessible, we recognize that many users prefer to generate their own reports. For those interested, we offer a comprehensive step-by-step guide to creating your Comcheck report. This guide is a valuable resource for understanding the process and ensuring accurate energy compliance.

We’re Here to Help, Regardless of Outages

Whether Comcheck Web is experiencing scheduled or unscheduled downtime, we’re here to assist you with your Comcheck needs. Simply email your PDF plans, job site address, and square footage to us, and we’ll take care of the rest.  Our email address is comcheck@comcheck.net

Legacy Comcheck. What You Need to Know

In the ever-evolving world of building energy codes and compliance, older software solutions can sometimes linger, creating a sense of both familiarity and confusion. One such tool is Legacy Comcheck. While it played a pivotal role in the past, understanding its place in today’s landscape is crucial for architects, builders, and contractors.

Comcheck Web is back after Page Not Found Outage

This blog post will delve into the intricacies of Legacy Comcheck, exploring its history, functionality, and its relevance in the face of modern energy code compliance requirements.

What is Legacy Comcheck?

Legacy Comcheck, often referred to simply as “Comcheck,” was a software program developed by the U.S. Department of Energy (DOE) to simplify the process of demonstrating compliance with commercial and residential energy codes. It primarily focused on the prescriptive path of energy code compliance, allowing users to input building component information (walls, roofs, windows, HVAC systems, etc.) and generate a report showing whether the building met the minimum requirements.

IECC Codes (2025) Available in Comcheck Desktop and Comcheck Web

Key Features of Legacy Comcheck:

• Prescriptive Compliance: It primarily focused on the prescriptive path, providing a straightforward way to check if individual building components met the code requirements.
• Simplified Input: The software aimed to simplify the input process, making it accessible to users with varying levels of technical expertise.
• Report Generation: It generated reports that documented the building’s compliance with the relevant energy codes.

Why “Legacy”? The Transition to Modern Tools:

The term “legacy” is used because the DOE has transitioned to newer, more advanced energy code compliance tools. While Legacy Comcheck served its purpose for many years, it has limitations in addressing the complexities of modern building designs and energy codes.

Comcheck Energy Code Chart (2025)

Key Differences Between Legacy Comcheck and Modern Tools:

• Code Updates: Legacy Comcheck may not be updated to reflect the latest versions of energy codes, such as the IECC (International Energy Conservation Code). Modern tools are regularly updated.
• Performance Path: While Legacy Comcheck primarily focused on the prescriptive path, modern tools often offer more robust support for the performance path, which allows for greater design flexibility.
• Advanced Features: Modern tools may include features such as 3D modeling, energy simulation, and integration with other building design software.
• User Interface and Compatibility: Older legacy software can have compatibility issues with modern operating systems. New tools are designed to work within current operating systems.
• Support: Legacy software will have limited to no support. Current software has active support and user guides.

What is a Comcheck Report?

Is Legacy Comcheck Still Relevant?

In most cases, no. Using Legacy Comcheck for new projects is generally discouraged due to:

• Outdated Code Information: It may not accurately reflect current energy code requirements, potentially leading to non-compliance.
• Limited Functionality: It lacks the advanced features and flexibility of modern energy code compliance tools.
• Jurisdictional Acceptance: Many jurisdictions may not accept reports generated by Legacy Comcheck.

What Should You Use Instead?

The DOE recommends using Comcheck Web, which is a free, web-based tool that is regularly updated to reflect the latest energy code requirements. Comcheck Web offers:

• Up-to-date Code Compliance: Ensures compliance with the latest versions of the IECC.
• User-Friendly Interface: Provides an intuitive interface for easy input and report generation.
• Free Access: Available to everyone at no cost.
• Web Based: No need to download and install software.

Other software options may also be available, depending on your specific needs and jurisdiction. It is always best to consult with your local building department to determine the accepted compliance tools.

Can I Do The Comcheck Myself?

Conclusion:

While Legacy Comcheck played a significant role in the past, it is essential to embrace modern energy code compliance tools like Comcheck Web. By using up-to-date software, you can ensure compliance with current energy codes, streamline the compliance process, and contribute to a more energy-efficient built environment. Always consult with your local building department to confirm which energy code compliance tools are approved in your area.

If you need a Comcheck created for you email PDF plans, jobsite address, and square footage to comcheck@comcheck.net and we will get you taken care of.

DOE Eases Energy Efficiency Standards: Implications for Comcheck and Commercial Construction

Here at The Comcheck blog, we’re dedicated to keeping architects, builders, and energy compliance professionals informed about the latest Department of Energy (DOE) updates. Recent developments signal a shift towards greater flexibility in equipment choices for commercial projects, impacting Comcheck compliance. Let’s explore these changes and their implications.

The DOE has announced a temporary hold on several energy efficiency standards, bringing relief and uncertainty to the commercial construction industry. This move aligns with a broader focus on deregulation and cost reduction, offering potential benefits while raising questions about long-term planning.

https://www.comcheck.net/frequently-asked-questions/

How Do These Changes Affect Comcheck?

Comcheck, the compliance tool for commercial buildings, relies heavily on energy efficiency standards. These changes directly impact the data used in Comcheck calculations, influencing equipment selection and overall building energy performance.

What Energy Efficiency Standards Are on Hold?

The following postponed standards are key considerations for Comcheck compliance:

• Central air conditioners: Impacts a core component of commercial HVAC systems.
• Gas instantaneous water heaters: Affects energy consumption calculations for hot water systems.
• Walk-in coolers and freezers: Essential for commercial refrigeration and compliance.
• Commercial refrigeration equipment: Broadens the impact on various commercial applications.
• Air compressors: Relevant for industrial and commercial facilities.
• Tankless Water Heater Category: The new category provides flexibility in choosing this efficient technology.

Benefits for Commercial Construction and Comcheck Compliance:

• Greater Equipment Flexibility: Allows for a wider range of equipment choices based on project needs and budget, potentially simplifying Comcheck compliance.
• Reduced Compliance Burden: Eases the immediate pressure to adapt to new regulations and paperwork, providing more time for accurate Comcheck reporting.
• Delayed Implementation: Offers valuable time to adjust to potential future changes without immediate disruption.

What is a Comcheck Report?

Uncertainty and Future Outlook:

The duration of the postponement remains unspecified, creating uncertainty for long-term planning and Comcheck compliance strategies.

However, Congress is actively considering legislation like the Congressional Review Act to address tankless water heaters and other energy-efficient technologies. We’ll continue to monitor these developments and provide updates on the [Your Blog Name] blog.

The Comcheck Blog’s Commitment:

We understand the dynamic nature of the commercial construction industry and the complexities of Comcheck compliance. We’re committed to:

• Closely Monitoring Developments: We’ll track regulatory changes and provide timely updates on their impact on Comcheck.  Check back here regularly
• Supporting Professionals: We’ll offer resources and support to help navigate these changes.
• Prioritizing Information: Keeping our readers informed is our top priority.

Common Reasons a Comcheck Fails and How to Avoid Them

Share the link to this article to help others learn about these monumental updates to Comcheck reporting.

Need Help with Comcheck?

The Comcheck Blog offers expert Comcheck services to ensure your projects meet compliance requirements. Contact us today for assistance!   Email pdf plans, jobsite address, and square footage to comcheck@comcheck.net and we will get you taken care of.

When Will IECC 2024 Be Added to Comcheck Web?

Recently while working on an energy audit I noticed that IECC 2024 energy code was available for Reschecks in Rescheck Web.  So I went to Comcheck Web to see if it was available there.  I can report that IECC 2024 is not available as an energy code in Comcheck Web, yet.  I do expect it to be added soon.

Comcheck Energy Code Chart (2025)

IECC 2024 could be added in several places.  Comcheck Desktop, New Comcheck, or Comcheck Web.  At this point none of these locations included the IECC 2024 capabilities.

The International Energy Conservation Code (IECC) 2024 is the latest edition of this important building code, setting new standards for energy efficiency in residential and commercial construction. A key question for builders and contractors is: When will IECC 2024 be available on Comcheck Web?

Common Reasons a Comcheck Fails and How to Avoid Them

Understanding the Process:

• Code Adoption: Local jurisdictions must first adopt the IECC 2024 code. This is a crucial step as Comcheck Web relies on local code requirements.
• Comcheck Web Updates: Once a jurisdiction adopts the IECC 2024, the Comcheck Web software needs to be updated to reflect the new code requirements. This involves:
  • Programming: Developers must integrate the specific provisions of IECC 2024 into the Comcheck Web platform.
  • Testing: Rigorous testing is essential to ensure the accuracy and reliability of the updated software.
  • Release: After successful testing, the updated version of Comcheck Web is released to users.

Comcheck Energy Report: What to Expect

Factors Influencing Timeline:

• Jurisdictional Adoption Rates: The speed of code adoption across different jurisdictions will significantly impact the overall timeline.
• Comcheck Development Resources: The availability of resources for Comcheck development and testing will also play a role.
• Complexity of the Code: The complexity of the IECC 2024 code itself can influence the development and testing process.

Finding Out When IECC 2024 Will Be Available:

• Contact Your Local Jurisdiction: The most reliable source of information is your local building department. They can provide the status of code adoption and anticipated availability on Comcheck Web.
• Check the Comcheck Websites: The official Comcheck Web website may have updates and announcements regarding code updates.  Comcheck Desktop, New Comcheck, and Comcheck Web all have a chance to have IECC 2024 added to their code library.  The most likely candidates for update will be New Comcheck and Comcheck Web.
• Consult with Industry Professionals: www.Comcheck.net is the leading resourse on IECC 2024 Comcheck reporting.  We will review all the Comcheck softwares daily until IECC 2024 Comchecks are released.  As soon as they are available we will update you on our Comcheck Blog.

Can I Do The Comcheck Myself?

Conclusion:

While there’s no single definitive answer to when IECC 2024 will be added to Comcheck Web, it’s crucial to stay informed about the process. By monitoring www.Comcheck.net ‘s Comcheck Blog, you can be prepared for the transition to the new code.

If you need a Comcheck then simply email PDF plans, jobsite address, and square footage to Comcheck@Comcheck.net and we will get you taken care of.

Can I Do The Comcheck Myself?

Written by Jobe Leonard from Comcheck.net who is a supporter of all who do Comchecks.

www.Comcheck.net

Can You Complete a Comcheck Report Yourself?

A common question I hear is whether homeowners can complete a Comcheck report themselves. The answer is yes! You can certainly create your own Comcheck energy report using the Comcheck Web, Comcheck Desktop, or New Comcheck software programs. This blog post will guide you through the process.

Comcheck Energy Code Chart (2025)

Getting Started with Your Comcheck Report:

Begin with a complete set of blueprints. You’ll need to gather the following information from your plans:

• Local Building Code: What are the specific energy codes in your area?
• Foundation: Type of foundation (e.g., slab, crawl space, basement) and whether it’s insulated.

What is a Comcheck Report?

• Wall Construction: Type of wall framing (e.g., 2×4, 2×6, metal, wood, block) and insulation type and R-value.
• Windows: Brand, type, design, SHGC and U-factor (a measure of heat transfer) for each window.
• Doors: Brand, type, design, and U-factor for each door.
• Roof System: Roof system type (Wood, Metal, etc) and insulation type and R-value.
• Square Footage and Lineal Footage: Determine the square footage and lineal footage of key components like roof, foundation, walls, windows, and doors.
• Building Location: Where is your commercial project being built (city, state)?
• Building Inspector Acceptance: Will your local building inspector accept a Comcheck report created by the homeowner?

Using the Comcheck Web Program:

Once you have this information, enter it into the Comcheck Web, Comcheck Desktop, or New Comcheck program. Click the “check compliance” button.

https://www.comcheck.net/frequently-asked-questions/

• Pass/Fail: The program will indicate whether your structure meets the building code. If it passes, it will show a percentage of compliance. If it fails, it will show the areas of non-compliance.
• Energy Allowances: Each building component has an energy allowance based on your climate zone. If your design exceeds these allowances, you’ll need to make adjustments to improve energy efficiency.

Comcheck Tips for Comcheck Users

Many project stakeholders, architects, engineers, contractors, and subcontractors struggle with completing Comcheck reports on their own.

• Expert Assistance: My expertise lies in helping construction teams navigate the Comcheck process. I can suggest upgrades to windows, doors, garage doors, and insulation to ensure your project passes the Comcheck requirements, if needed.
• Free Consultations: I can offer free consultations to discuss your project and provide personalized recommendations.
• Comprehensive Support: I can generate multiple Comcheck reports to compare different insulation values and identify the most efficient options for your home.
• Nationwide Service: I can assist with Comcheck reports for commercial projects being built across the United States.  Pick a state and we can create a Comcheck report for that location using the preffered local code and specifications.

What Does a Comcheck Cost? (2025)

By utilizing my expertise, you can gain peace of mind knowing that your home is being built with proper insulation and meets all energy efficiency requirements.

I can get Comchecks created in a very efficient manor.  We need PDF plans, jobsite address, and square footage to get started.  Most Comchecks can be created within 10-12 hours.  Email project info to Comcheck@Comcheck.net to get started now.

Important Notice: COMcheck-Web Scheduled Maintenance Outage (December 18-19, 2024)

Streamlining Your Building Energy Compliance with Enhanced COMcheck-Web

We love providing Comcheck Energy Reports as a service.  We just received notice that COMcheck-Web will undergo scheduled maintenance starting Wednesday, December 18th, 2024, at 4:00 PM PST, and lasting for 24 hours until Thursday, December 19th, 2024, at 4:00 PM PST.

What to Expect:

• During this period, COMcheck-Web will be temporarily unavailable. You may experience intermittent service disruptions or complete downtime.
• We can still create Comchecks during this time as a service.  Email PDF plans, jobsite address, and square footage to comcheck@comcheck.net and we will get you taken care of.

Why the Maintenance?

This scheduled maintenance is crucial for several reasons:

• Enhanced Performance:  The Department of Energy is continuously optimizing COMcheck-Web for faster loading times and smoother operation.
• Improved Security:   They are busy implementing the latest security measures to ensure your building energy data remains protected.
• New Features: Typically when the updates are rolled out we are excited to introduce new functionalities to further streamline your compliance workflow. We can update you in future blog posts on Comcheck.net about the features we find once they are released and discovered.

Staying Informed:

We’ll keep you updated on the progress and the system’s return to normal operation.

Alternative Resources:

While COMcheck-Web is unavailable use Comcheck Desktop or New Comcheck as a resourse to complete Comcheck reports.

We appreciate your patience and cooperation as COMcheck-Web is updated to be an even more valuable tool for your building energy compliance needs.