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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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Radiant Barriers

attic insulation

Radiant barriers are commonly known as reflective insulation, which is a type of thermal heat. These barriers are installed in homes to reduce the summer heat, as well as to reduce cooling costs. These barriers consist of a highly reflective material that reflects heat, rather than absorbing it.

How it works

Aluminum foils, the operative material in the attic radiant barriers, have two physical properties of interest:

  1. Reflects thermal radiation very well
  2. Emits very little heat

This means that aluminum is a very good heat reflector, and a bad heat radiator.

How it works in summer

In summer, one of the largest sources of heat gained by your home or building is in the form of radiant heat. Two of the largest portions of heat come from the roof and the ceiling. The roof and walls of your home absorb the radiant heat coming from the sun. This heat moves by conduction towards the interior until it reaches an air space such as the drainage plane or the attic. At this point, if you have a radiant barrier installed next to the air space, most of the heat is reflected back towards the outside.

Without the radiant barrier installed, the heat is absorbed by the interior surfaces of your home. Regular insulation actually does little to reflect the radiated heat; it just absorbs and holds the heat. And if there is HVAC equipment located in the attic, it will absorb the attic heat and transfer it inside the house. If properly installed, a radiant barrier can block up to 95% of this heat, saving you money year after year!

How it works in the winter

During the winter, the heat that conducts through the ceiling, walls and floor is lost by radiation and convection. The radiant barrier installed in the attic will reflect the heat back towards its source. Used as a house wrap, this barrier can reduce heat loss through the walls. Heat is lost through the ceiling, walls and floor, and your home’s heater works hard to reheat the space. Properly installed, the radiant barrier can reduce this wasted energy by reflecting the heat back towards the interior, keeping your home warmer and keeping heating costs down.

Which material is best?

For material options, there are many when it comes to installing insulation. We have the synthetic, such as cellulose, fiberglass and mineral wool. And then there is the natural, such as cotton and wool. Either type of material does the same thing: regulates the temperature of your home, and is a big energy saver. The difference comes to season. During summer, there may be a type of insulation material that works better.

At eShield, we're committed to helping you increase the energy efficiency of your home without burning a hole in your wallet. In addition to our radiant barrier insulation, we also offer basement insulation and energy-saving products. As a result, we're able to offer you a level of protection that can't be beat. Do give us a call at 866-978-9170 to know more about our services! You may also visit our contact page for more information.