Magnetic Refrigerators
Magnetic Refrigerators
Oak Ridge National Laboratory and General Electric have teamed up to create a revolutionary new type of refrigerator that uses magnets to create cold, also known as the magnetocaloric effect (lowering or raising the temperature of the material by changing the magnetic field).
Ultra-Efficient Heat Pumps
Ultra-Efficient Heat Pumps
The Building Technologies Office is ushering in the next generation of heat pump systems, which warm and cool your home by moving heat from one space to another. A fuel-fired, multi-function residential heat pump that can reduce primary energy consumption by 30 percent.
Clothes Dryers
Clothes Dryers
The same concept behind heat pump technologies that keep your home comfortable can also be used for another important application: drying your clothes. Oak Ridge National Laboratory and General Electric are developing a new type of clothes dryer that uses a heat pump cycle to generate hot air needed for drying.
Smarter, More Connected Homes
Smarter, More Connected Homes
We live in an increasingly connected world -- the same is true for our homes. New electronic devices and appliances can now be linked to the Internet to provide real-time data that makes it easier to understand and lower energy use.
Next-Gen Insulation
Next-Gen Insulation
Insulation is one of the most important ways to reduce your home heating and cooling costs. The Industrial Science & Technology Network is developing new foam insulation made with environmentally friendly and advanced composite materials that ensure heat doesn’t escape from the attic, walls and other areas of the home during cold winter months.
Advanced Window Controls
Advanced Window Controls
Lawrence Berkeley National Laboratory and Pella Windows are working on new highly insulated windows that use sensors and microprocessors to automatically adjust shading based on the amount of available sunlight and the time of day to ensure proper lighting and comfort, saving consumers energy and money.
Reflective Roofing Materials
Reflective Roofing Materials
Cool roofs coated with materials containing specialized pigments reflect sunlight and absorb less heat than standard roofs. Expect these types of roof systems to get even “cooler” due to new fluorescent pigments developed by Lawrence Berkeley National Laboratory and PPG Industries that can reflect nearly four times the amount of sunlight of standard pigments.

Energy-Saving Solutions

From heating and cooling to electronics and appliances, it takes a lot of energy to power our daily lives. Our homes use 37 percent more energy today than they did in 1980. But without energy efficiency -- through technology innovation and federal energy conservation standards -- this number would be a lot higher. In fact, even though our total energy use has grown, our energy use per household is down about 10 percent, despite that our homes are larger and contain more devices.

Save Energy Systems

10 August 2020

What is the Best Energy Efficient Insulation for Walls?

No one can get a good night’s sleep when the noise from your teen playing video games penetrates every room in the home. If you’re hearing every bump, every rustle, and every whisper through the walls, your home may need...

The post What is the Best Energy Efficient Insulation for Walls? appeared first on HomeSelfe.


No one can get a good night’s sleep when the noise from your teen playing video games penetrates every room in the home. If you’re hearing every bump, every rustle, and every whisper through the walls, your home may need...

The post What is the Best Energy Efficient Insulation for Walls? appeared first on HomeSelfe.

No one can get a good night’s sleep when the noise from your teen playing video games penetrates every room in the home. If you’re hearing every bump, every rustle, and every whisper through the walls, your home may need better insulation.

What is the best insulation for walls? Look for insulation with an appropriate ‘r’ value to keep noises confined and maintain an ideal temperature for every room.

What is a Good ‘R’ Value for Exterior Walls?

Maybe your home’s problem isn’t the walls within the home but the walls on the exterior of the home. Exterior walls that are poorly insulated could mean that rooms aren’t well protected against the outdoor temperature. This may mean that a room (or rooms) stays hot during the summer and cold during the winter.

Noise also could be an issue. Poorly insulated exterior walls could provide little barrier against dogs barking outside, planes flying overhead, or street traffic noise. If the insulation to your bedroom is insufficient, you may even have trouble falling asleep because of all that noise.

The ‘r’ value of insulation indicates how well it resists heat, and according to Home Depot, “the higher the ‘r’ value, the greater the insulation performance.” What is the ideal ‘r’ value for exterior walls? Home Depot provides a map of the U.S. that indicates which value is best for each region. Once you find your home state on the map, you also can reference a chart that indicates the best insulation for floors, crawlspaces, the attic and more.

What is the Best Energy Efficient Insulation for Walls?

How is ‘R Value’ Calculated?

The ‘r’ value of insulation may differ by the insulation material. You can choose insulation in different material types, including blown fiberglass, fiberglass batts, blown cellulose, loose rock wool, and sprayed foam. Each of these materials offers a different ‘r’ value per inch, and according to Today’s Homeowner, here’s how the ‘r’ values stack up by material:

  • Blown Fiberglass: 2.2 to 2.9
  • Fiberglass Batts: 2.9 to 3.8
  • Blown Cellulose: 3.1 to 3.8
  • Loose Rock Wool: 2.2 to 3.3
  • Sprayed Foam: 3.6 to 8.2

Of all the materials, sprayed foam offers the highest ‘r’ value per inch. However, homeowners may have a different preference based on budget. If you need an ‘r’ value of 21 to insulate your walls, you would need about six or seven inches of fiberglass batts. Again, though, your insulation needs may differ depending on where you live.

Is R13 Insulation Good for Exterior Walls?

An R13 insulation may be on the low end of your budget, and that cheaper price tag may seem really appealing. Is R13 insulation good for exterior walls, though? Again, the ‘r’ value you need depends on where you live. Home Depot lists R13 as the low end of the recommended ‘r’ value for walls. While this could be perfectly acceptable, if you need or want more protection against noise or the weather, you may opt for a slightly higher ‘r’ value.

What is the Best Energy Efficient Insulation for Walls?

What is the Best ‘R’ Rating for Insulation?

Again, when choosing insulation, the ‘r’ value that you need depends on where you live and what part of your home you need to insulate. Attics need insulation with a much higher ‘r’ value than walls. Floors and crawl spaces need a lower ‘r’ value than attics but they still require a higher value than walls.

Always look at the insulation chart to find the best value for your home’s insulation needs.

What is the Best Insulation Material?

If you review Today’s Homeowners summary of ‘r’ value by material type, sprayed foam clearly comes out near the top of the choices for insulation material. You need less foam to provide a higher level of insulation. However, every material has a different price point, and foam can be an expensive choice.

Before choosing your insulation, consult your budget first to see what is in your price range. Once you understand the costs of each material, you can choose the best option for your budget and insulation needs.

Not sure if you need additional insulation? Call a professional and have them assess your home’s insulation. A professional also can advise you on the best type of insulation for your needs. You also could discover that a cold draft or those loud noises are the result of older windows that need to be replaced. There is often a homeowner dilemma when it comes to replacing windows or adding more insulation to deal with drafts or noise issues. Again, when in doubt, call a pro or advice!

The post What is the Best Energy Efficient Insulation for Walls? appeared first on HomeSelfe.


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