Understanding the HERS® Index
The Home Energy Rating System (HERS) Index is the industry standard by which a home’s energy efficiency is measured. It’s also the nationally recognized system for inspecting and calculating a home’s energy performance.
What does the HERS Index say about a house?
The HERS Index is a measurement of a home’s energy efficiency and there are a lot of great reasons why you should have a home energy rating performed on your house.
A HERS Index Score can tell you so much about a home you are thinking of buying. Heating, cooling and water heating constitute the largest cost of homeownership outside of the mortgage loan. The HERS Index Score will tell you how well the home performs energy-wise. The HERS Report will outline the energy features of the home and the expected cost of utility bills.
It will also provide you with invaluable information about the existing home you live in, like how efficiently it’s operating and where you can make modifications for greater energy savings. When you’re selling your home, a low HERS Index Score can command a higher resale price. And when you’re buying a home, you can anticipate the costs of energy bills and efficiency upgrades.
How does the HERS Index work?
A certified RESNET Home Energy Rater assesses the energy efficiency of a home, assigning it a relative performance score (the HERS Index Score). The lower the number, the more energy efficient the home. The U.S. Department of Energy has determined that a typical resale home scores 130 on the HERS Index while a home built to the 2004 International Energy Conservation Code is awarded a rating of 100.
•A home with a HERS Index Score of 70 is 30% more energy efficient than the RESNET Reference Home.
•A home with a HERS Index Score of 130 is 30% less energy efficient than the RESNET Reference Home.
To calculate a home’s HERS Index Score, a certified RESNET HERS Rater does an energy rating on your home and compares the data against a ‘reference home’– a designed-model home of the same size and shape as the actual home, so your score is always relative to the size, shape and type of house you live in.
We use Johns Manville. For more than 150 years, Johns Manville has focused on developing materials to make diverse environments stronger, more durable, and more energy efficient and comfortable.
Committed to meeting the increasing demand for energy efficiency in new and existing homes, non-residential buildings and industrial applications.
- Spray Foam
- Blown in insulation
- Batt insulation
Maximize your home’s heating, ventilating, and air conditioning system with our blower door and duct testing services.
These tests allow us to show you how much air your system is losing and how airtight your home really is. LiveGreen’s measurements can be compared to industry standards to give a true assessment of your home’s energy efficiency.
We can conduct these tests on new and existing homes. All tests follow North Carolina’s Building Codes.
Blower Door Testing
If air is leaking into or out of your home, blower door testing will show us where these leaks are. So why is this test important?
- When air leakage occurs, you’ll consume more energy
- Moisture condensation problems can occur if your home isn’t airtight
- You’ll probably experience drafts of cold air coming through these leaks
Air leakage in any of your ducts can drastically effect the temperature inside your house. You may have one room that has a significant difference in temperature from the other, which can have an irritating, troublesome effect. With duct testing, LiveGreen can locate which—if any—of your ducts are leaking air, so you can know how to remedy any comfort issues associated with the temperature inside your home.
In addition, leaky ducts can be costly. You may be conditioning unintended areas of your home, which causes your HVAC system to run harder to keep the right temperature in rooms you want conditioned. Especially during months of extreme cold or heat, air leaks in your ducts can be expensive.
Are you ready to make your home airtight? Contact us today to set up an appointment.
What is radon?
Radon is a gas that is emitted when rock or brick decomposes. It is a form of radioactive decay usually found in gravelly, sandy-mixed soils. Radon levels can vary drastically from house to house, even in the same neighborhood. High radon levels can effect homes whether they are new or older, often undetected.
Health risks associated with radon
Radon can cause lung cancer over a long period of time. According to the EPA, radon “is the number one cause of lung cancer among non-smokers” and is responsible for approximately 21,000 deaths every year.
People with any respiratory or sinus issues are likely to have a harder time breathing when there are high levels of radon in the air. Therefore, homes often need a radon mitigation system.
What is radon testing and radon mitigation?
LiveGreen uses the process of radon mitigation to reduce radon concentrations in the air of your home. Through radon testing, we’ll determine how high your radon levels are and what can be done to lower this number. A radon mitigation system extracts the radon from the air, drawing it out of your home. And since LiveGreen employs individuals with a construction background, we can work with you to aesthetically blend the system into your house.
Sealed crawl spaces and radon mitigation
Another benefit of sealed crawl spaces relates to radon mitigation. Sealed crawl spaces allow for easier radon mitigation because of the plastic sealed liner which can be installed with slotted pipes underneath the seal to extract the gas. Contact us to see how we can help.
LiveGreen Inc. believes in taking advantage of your home’s already-spent energy and existing resources to help you save money and enjoy a better quality of life. Because each individual home has unique green needs, LiveGreen Inc. works with you to develop a practical, affordable approach to help you:
- Lower living expenses
- Improve indoor air quality
- Increase the marketability of your home
- Reduce your home’s carbon footprint
- Add lasting value to your home
Our GreenOver Process
LiveGreen’s GreenOver process, a certified 3-step approach for evaluating and improving a home’s sustainability, guides homeowners through the process of turning any home into a healthy, energy-efficient and sustainable home.
Together with a team of architects, engineers and other industry consultants, LiveGreen has created a set of standards for evaluating the sustainability of existing homes, offering recommendations and assisting homeowners in the process of making homes eco-friendly.
A greener home can save you money, so contact us today to find out how your home can become LiveGreen certified!
Reduce your utility costs with a free energy usage assessment
This free visual energy assessment will pinpoint problems such as:
- Poor or missing insulation
- Ductwork issues
- Large air gaps
- Excessive moisture issues
Experience the benefits of a sealed crawl space system
At LiveGreen, we can install a sealed crawl space system that’s tailored to fit your needs. A sealed crawl space can provide numerous benefits for you and your family, including:
- Better indoor air quality, to help you breathe easier
- Lower utility bills due to your HVAC system’s improved energy efficiency
- Warmer floors during the winter, providing comfort year-round
- Less mold and dry rot, because of reduced moisture levels in the crawl space
- Longer building life resulting from better structural integrity of the wood framing and flooring system
- A great sales feature if you sell your home: a sealed crawl space could be an additional selling point and help you stand out from the competition
Fight problematic moisture with a sealed crawl space system
When there is too much moisture in your crawl space system, problems can arise. These can include:
- Rotted wood
- Sagging insulation
- Mold growth
- Pest and rodent infestations
- Filthy ductwork
It’s no wonder that many pest control professionals, HVAC technicians, insulation companies, and water proofing companies all recommend some kind of moisture prevention in any solution they offer.
Not sure what kind of crawl space system you have? Click here to find out.