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Free Home Energy Analysis


Let us help you find ways to save money.

With the current tidal wave of environmentally-friendly products hitting the market, figuring out which are actually worth the money can be like finding a needle in a haystack. But of all these energy saving products, eShield™ multi-layer foil insulation truly rises above the rest.

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R-Value vs E-Value in Insulation Systems

There are three ways that heat can be transferred in and out of your home:

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.

CONDUCTION
heat transfer through contact between solid objects
CONVECTION
air circulates and passes heat from one object to another
EMISSION
direct transfer from a radiant heat source like the sun