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How To Improve a HERS Energy Rating Score

  • Writer: Erick breckenridge
    Erick breckenridge
  • Apr 14
  • 3 min read

A HERS energy rating is an essential metric for assessing a building's energy performance, particularly for property owners and contractors in Massachusetts. This rating measures how energy-efficient a building is compared to industry standards, making it a vital tool for reducing energy costs and contributing to environmental sustainability. Understanding how HERS ratings are calculated and the steps to improve them can lead to significant energy savings and long-term benefits. This blog offers insights into how energy assessments, such as blower door testing, help achieve better efficiency, positioning us as your trusted partner in energy management.


What Is a HERS Energy Rating and Why Does It Matter?

A HERS energy rating, or Home Energy Rating System, is a standardized assessment used to evaluate a building's energy efficiency. It incorporates factors such as insulation, air leakage, and the efficiency of heating and cooling systems. This rating is particularly significant because it informs homeowners, builders, and property managers about a building’s energy consumption and areas of improvement. Tools like blower door testing play a crucial role in identifying air leaks and improving a building’s performance. By ensuring your building has a favorable HERS score, you can reduce utility costs and enhance comfort year-round while aligning with regional energy efficiency standards. Moreover, because the score is a defined number, it makes it easier for homeowners, buyers, and sellers to quantify/conceptualize the efficiency of a property. This can make it easier to appraise a property and provide clear roadmaps for the future.


How Is a HERS Energy Rating Calculated?

To calculate a HERS energy rating, energy raters conduct a detailed assessment of the building. The process involves evaluating various aspects such as insulation levels, HVAC systems, and windows. Blower door testing is also commonly performed during this assessment to measure air leakage in the home. The results of these inspections are then compared to a reference home that meets minimum code efficiency standards. This standard home is set to a score of 100. A lower HERS score indicates better energy performance. Understanding this process allows property owners to make informed decisions about what improvements could yield the greatest benefits for energy efficiency.


Steps to Improve Your Building’s HERS Energy Rating

Improving your property's HERS energy rating involves targeted changes that directly address the areas evaluated within the assessment. Key actions include:

  • Sealing Air Leaks: Using advanced techniques like Aeroseal to locate and seal air leaks, which can significantly impact your building’s efficiency.

  • Upgrading Insulation: Ensuring walls, floors, and the attic are well-insulated to reduce energy wastage and maintain consistent indoor temperatures.

  • Enhancing HVAC Efficiency: Replacing older, inefficient systems with modern, energy-efficient alternatives to reduce energy consumption.

  • Installing High-Performance Windows: Using energy-efficient windows to better regulate temperatures and minimize energy loss.

Each of these steps not only improves your HERS score but also creates a more comfortable and cost-effective living or working space.


Why Air Sealing and Blower Door Testing Are Key to Energy Efficiency

Air leakage is one of the main factors that can negatively impact a building's energy rating. Excess air exchange between indoors and outdoors leads to higher energy consumption as your systems work harder to maintain desired temperatures. By conducting blower door testing, we can pinpoint gaps and leaks and recommend effective solutions to seal them. Air sealing is a cost-effective strategy to lower your energy costs and improve overall comfort. Our team ensures every property we evaluate meets high standards for energy performance and sustainability, particularly in cold-climate areas like Massachusetts, Maine, and New Hampshire.


Contact Our Team To Schedule an Energy Audit

Improving your HERS energy rating is an investment that pays off in lower utility bills, enhanced comfort, and increased property value. Through detailed energy assessments, blower door testing, and actionable recommendations, we help property owners in Massachusetts, Maine, and New Hampshire achieve their energy efficiency goals. Contact us today to schedule an energy audit and take the first step toward a more energy-efficient future.

 
 
 

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