Services: Residential Alterations
BarrierEnergy is your one-stop-shop for consulting, referrals, and assessments for your construction project. We can help, whether you want to improve the durability of your residential property, reduce energy costs, add value for re-sale, or improve your safety and comfort.
Title 24 Compliance
Title 24 of the California Energy Commission (CEC) outlines energy efficiency standards for new, altered, and existing buildings in the state of California. California requires a minimum mandatory energy score, as well as mandatory compliance measures. Optional upgrades and tests can translate into compliance points. For more information, visit the CEC website.
HERS Raters
The Home Energy Rating System (HERS) is used to test and enforce energy code standards set by the California Energy Commission. HERS Raters are private building inspectors who perform state compliance inspections and functional tests on residential and commercial buildings. Compliance testing has been legally required since 1974, and the codes are updated every couple of years. A HERS Rater is licensed by the Environmental Protection Agency (EPA) as an HVACR (Heating, Ventilation, Air conditioning, Cooling, Refrigeration) technician. At BarrierEnergy, our certified HERS Raters are thoroughly trained on all new building codes and regulations.
Our Services
Recently, a new code cycle for building compliance in California was set as of 2019. In 2020, these standards go into effect. Our team offers over a decade of experience to help you keep up in a constantly changing work environment. BarrierEnergy’s goal is to keep your construction project on schedule and compliant with energy standards. Furthermore, we can help you to decide what solutions will work best for your project and budget. Contact us to discuss your energy solution, assessment, and HERS rating needs.
Residential Alterations
Any residential alterations including additions, remodels, change-outs, ADUs (accessory dwelling units), and energy efficiency upgrades are regulated by Title 24 codes. Alterations made to systems that provide heating or cooling within conditioned spaces in a home also fall into this category. A change-out is when someone replaces a component of the HVAC system, such as the ductwork or the furnace. Any of these alterations require a HERS test by California state law. The technician must certify that the installation has remained within energy efficiency guidelines.
CF1R
Pre-HERS
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Pre-HERS is an investment in your project, and clients typically save thousands overall. After reporting the existing conditions to authorities, we’ll help you to assess your budget and consult you about which upgrades will benefit you the most.
This preliminary measure will prevent any time delays further down the road, and make sure your entire Title 24 process runs smoothly.
Plans / Title 24 Report
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The Title 24 Report, also known as the CF1R (Alt-01 or Alt-02), is a required document to get permit approval. It shows an overview of all energy-consuming features. Click to learn more about the Title 24 Compliance process.
E-Project Management
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BarrierEnergy will take care of the paperwork and data entry for your project, from beginning to end!
Consulting
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Projects go more smoothly when the architect, HERS Rater, and T-24 consultant discuss the project from beginning to end.
We will offer consultation to help you stay on schedule, on budget, and compliant with energy standards. The advice we offer includes Q&A, compliance measures, brand selection, and referrals. Click here to learn more about what consultation adds to your project.
Certificate of Compliance - Permit Approval
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Solar Ready Area (SRA)
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Tesla was created as a precursor for PV solar requirements. Most new buildings will need to have solar panels installed unless they make certain exemptions. Read more about solar-ready areas and solar panel requirements here.

CF2R
Certificate of Installation
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We will ensure energy guidelines have been met for the project, as outlined by the CF1R. At the end of this stage, you will receive the certificate of installation.
Building Walk Around
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The inspector will obtain information on the project through the building’s ‘plan set’, or title 24 report. This report is an energy calculation file with all information relevant to that job site including square footage, number of rooms, etc. The title 24 report is an all-encompassing document listing the features on a building, including all systems.
Duct Leakage Testing At Frame
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As HERS Raters, this test is our specialty! For more information, visit our duct leakage testing page.
Electrical Set Up
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So, the goal is to deisgn an efficient, yet cost effective Power Distribution System. We are the experts that will help you do just that, while adhering to California State efficiency requirements.
Lighting
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This stage is to verify that the plan-set for lighting matches the installation. Learn more about Title 24 Lighting.
Quality Insulation Inspection
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Then after installation, another inspection will certify the quality. This visual inspection involved making sure there are no gaps, the proper type of insulation is being used, etc.
QII HERS inspections require much attention to detail. Let us make sure that insulation does not hold up your construction process, by communicating with the installer, builder, and contractor throughout the process. Learn more about insulation requirements here.
Fenestrations (Doors & Windows)
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Factors of thermal transmission include placement, reflectiveness, tinting, and more. Therefore, different kinds of windows and doors are required depending on the setting. Learn more about the codes for windows and doors here.
Indoor Air Quality (IAQ)
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Refrigerant Charge Test
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Airflow (AC)
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PV Solar
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Envelope Air Sealing / Building leakage
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A duct blower is used to determine how much air leakage is coming from a building. If the testing results do not meet efficiency code standards, identified leakage paths must be be sealed properly.
To learn more, visit our page on building leakage.
Space Conditioning Systems
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Materials Quantity Variance (MQV)
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Ducts in Conditioned Space
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Fan Efficacy / Fan Watt Draw (AC)
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Rated Equipment
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Hot Water Systems
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Hot water systems must be inspected to ensure they were installed according to the plan set. We fill out the plumbing installer verification form and other compliance documentation if water heating credits were claimed in your plans. Learn more about compliance credits on our page on efficient water heaters.
Return Duct Design
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It is our job to verify the return vent has been installed properly and the airflow is up to code. Certified HERS Raters will hook a flow hood up to the return vent in order to read the airflow.
Detailed Duct System Design
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In order to claim compliance credits, the duct design must be listed on the plan-set, approved by proper enforcement, and installation must be certified by a HERS Rater.
CF3R
Project Status Report
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Certificate of Verification
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Existing Conditions Report
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Duct Leakage Testing At Final
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Our technicians will verify the duct leakage test results when the construction project is at final. This will ensure that all the information in the CF3R is correct. For more information, visit our duct leakage testing page.
Air Flow & Air Balance At Final
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Airflow will be double-checked once the construction project has reached it’s final stages. Once the walls and permanent fixtures have been installed, we want to verify the results of the first airflow test.
Quality Insulation Inspection At Final
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HERS Raters sign-off on insulation at final. Learn more about insulation requirements here.
Indoor Air Quality (IAQ) At Final
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Our technicians will test IAQ at the beginning stages of a project, and once again at the end.
Materials Quantity Variance (MQV) At Final
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This is somethig we will check on during a project, and especially at the end of a project. Performing MQV at final gives an overrall picture of how successful a project was at staying on budget.
Refrigerant Charge Test At Final
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We will check the condensor at the start of a project, and again when the project is at final. At final, the walls have been errected and permanent fixtures have been installed. We do this to certify the CF2R test results.
Return Duct Design At Final
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It is our job to verify the return vent has been installed properly and the airflow is up to code. Certified HERS Raters will hook a flow hood up to the return vent in order to read the airflow. This test will be performed at final to verify the results from the first test.
Detailed Duct System Design At Final
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In order to claim compliance credits, the duct design must be listed on the plan-set, approved by proper enforcement, and installation must be certified by a HERS Rater. We will perform this service again at the end of the project to authenticate passing results.
Ventilation Cooling At Final
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Our technicians will test again at final, to verify the CF2R test results.
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LEED Certification
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Through LEED you can also aquire points and credits for your project. We will help you choose which credits to pursue for the most payback. The amount of points obtained will determine which level of certification you are rewarded: Certified, Silver, Gold or Platinum.
Energy Star Certification
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Buildings with the Energy Star stamp have higher market value while saving time and resources in the long run. It’s a great return on investment.
Energy Efficiency Audit
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We are licensed by CalCERTS to perform energy efficiency audits. A licensed technician will analyze all features of the building for efficiency. An energy audit provides an opportunity to assess what improvements could be made to make the building more efficient.
Not only will money and resources be saved, but creature comfort will improve. We recommend this test be performed every year. This will identify and prevent major expenses, such as overworked HVAC systems that cause system collapse. To learn more, visit our post about Home Energy Ratings.
Energy Efficient Mortgage (EEM)
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Energy Efficient Mortgages can also be used for upgrading new homes. In this instance, HERS Raters would be conducting a home energy assessment to help determine the cost effectiveness of upgrades. The expected savings from installing efficiency upgrades will offset the cost of the improvements. Based on these findings, the FHA approves an allocated amount towards energy efficient upgrades. Therefore, the FHA can guarantee an energy package loan to cover initial installation fees by lumping it in with the mortgage. Reach out to our experts for more information about this service.
PACE Loan / Special Programs
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We know which programs will work best for you. Reach out to our experts today.
Energy Efficient Tax Credits
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For example, 45L is a tax credit that encourages the construction of energy efficient residential properties. Contractors may be eligible for a $2,000 tax credit per energy efficient unit. In order to qualify, a certified field technician must verify the efficiency of the dwelling unit(s) meets the programs standards.
To learn more about the special programs and savings you could qualify for, reach out to our expert team today.
Warranty Sign-Off
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Home Inspection
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During a home inspection, the inspector will document every part of the home. The data they collect will be supported with picture evidence, and documented through an inpection report.
Miscellaneous Compliance Testing
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State codes enforce basic minimum requirements for efficiency. However, local codes can vary from area to area. There are federal and local special addendums and programs.
Our technicians will work with the owner and builders to make sure every step of the construction process is done properly, given codes in certain municipalities.
Basic Health and Safety
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If you are experiencing symptoms of sickness for no apparent reason, it may be a good idea to get some general tests done. We can ensure proper airflow, temperature control, and exterior seal. Reach out to an expert at BarrierEnergy; we are here to protect your health.
Thermostat Programming
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Residential Air Test and Balance
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Whenever you get a new HVAC system installed, you should always get an air balance test done. Air balance testing protects a home by assuring consistent airflow throughout each space. Say goodbye to hot and cold spots, moisture problems, and high energy bills affecting your home. Learn more page about Residential Air Test and Balance.
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