R-value VS. E-value
There are three ways that heat can be transferred in and out of your home:
| Conduction | Convection | Emission |
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| R-value measures only the resistance to conduction and convection, but almost all of the energy lost in your home is through emission – radiant heat transfer. “E-value” (the ability to prevent radiant heat transfer) is far more important than R-value in evaluating an insulation system. eShield™ Attic Energy Barrier has a much higher E-value than any form of mass insulation. | ||
More about Attic energy Barrier
- Attic Energy Barrier
- Home Energy Loss
- The Science
- R-value VS. E-value
- eShield™ VS. Ordinary Insulation
- Installation Strategies
- Frequently Asked Questions
Department of Energy tests show that eShield™ attic energy barrier can deliver more energy savings than twelve inches of additional fiberglass insulation.