eShield Radiant Barrier
The most cost-effective way to lower your heating and cooling bills
In the last century, the only cost-effective insulation for the home was mass insulation like fiberglass, cellulose and foam that reduced heat transfer by convection and conduction. The “R-value” was the measure of how good a job those insulators did. Yet R-value measures only the smallest part of residential heat transfer.
E-value is the measure of emissive, radiant heat transfer, the principle source of energy loss. New technologies make it practical to achieve extremely low emissive in window glass and in a reflective film ideal for the attic. As these low-E technologies advance, the codes will catch up and E-value will replace R-value as the primary measure of energy efficiency.
- State-of-the-art foil laminating technology
- Stops over 97% of radiant transfer, the primary source of energy loss
- Works for the life of your home without settling, condensation or mildew
- No dangerous fibers / hypoallergenic
- Needs no maintenance or replacement
- Usually pays for itself faster than any other home investment
Space Age Technology For Your Home
A spacesuit can get as hot as 310 degrees Fahrenheit on the side facing the sun and as low as -290 degrees on the opposite side. How can an astronaut survive in such harsh conditions? It is because a flexible radiant barrier laminated into the fabric allows the space suit to reflect the searing heat when facing the sun and retain the body's warmth when facing away from the sun.
The same technology that keeps an astronaut comfortable in space is now available for your home. You'll be able to keep heat in when the weather is cold and keep it out when the weather is hot. Finally, you can bring your heating and cooling bills down to earth.
eShield vs. Ordinary Insulation
eShield attic energy barrier can provide you with substantial energy savings. In these photos, an identical heat source is applied to two installations: one with R-19 mass insulation only, and one with the same mass insulation covered by a single layer of eshield attic energy barrier. After only 30 minutes, the eShield protected side is clearly cooler than the insulation side alone.
R-Value vs E-Value
R-value measures only the resistance to conduction and convection, but almost all of the energy lost in your home is through emission or radiant heat transfer. E-value is the ability to prevent radiant heat transfer. This factor is far more important than R-value in evaluating an insulation system for your home. eShield Attic Energy Barrier has much higher E-value than any form of mass insulation.
Department of Energy tests show that eShield attic energy barrier can deliver more energy savings than twelve inches of additional fiberglass insulation.
eSheild Frequently Asked Questions
Q: Why don’t building codes specify E-values as well as R-values?
A: In the last century, the only cost-effective insulation for the home was mass insulation like fiberglass, cellulose and foam that reduced heat transfer by convection and conduction. The “R-value” was the measure of how good a job those insulators did. Yet R-value measures only the smallest part of residential heat transfer. E-value is the measure of emissive, radiant heat transfer, the principle source of energy loss. New technologies make it practical to achieve extremely low emissive in window glass and in a reflective film ideal for the attic. As these low-E technologies advance, the codes will catch up and E-value will replace R-value as the primary measure of energy efficiency.
Q: Will eShield™ installed in my attic trap mildew-causing moisture in my ceiling?
A: eShield™ is perforated to allow vapor to escape the housing envelope – it will not contribute to mildew growth in your home.
Q: Will eShield™ create a fire hazard in my attic?
A: eShield™ Attic Energy Barrier is fire-resistant – it’s less combustible than the structure to which it attaches. Of course, like almost any material, it will melt and eventually burn if exposed to an open flame.
Q: Can I get a rebate for installing eShield™?
A: eShield™ Attic Energy Barrier is Department of Energy approved and bears the Energystar® mark. This is the gold standard in energy efficiency and qualifies for most federal, state and energy company rebates. Check with your eShield™ rep to learn what’s available in your area.