Maintain Energy Efficiency With A Radiant Barrier

in Heating
When considering home insulation choices, a radiant barrier in Houston can offer up significant benefits. A radiant barrier is a type of insulation that has an outside layer of metalized film, often made of aluminum, which will reflect infrared rays. By utilizing a few simple laws of physics, it is a permanent way to reduce the energy costs associated with heating and cooling.

The principles involved in insulating a building revolve around a simple understanding of the nature of how energy is transferred. All buildings produce three distinct types of heat transfer: conduction, convection and radiant. Conduction involves the transfer of heat through direct contact with something. For example, a pan starts out cold on top of the stove is heated through conduction.

Convection occurs when heat is transferred through a liquid or a gas. For homes, this usually involves a means of heating the air. An example of this would be an old-fashioned radiator that draws cold air in at the bottom and forces hot air out of the top.

Radiant heat uses the natural infrared rays that are emitted from objects to warm other objects, instead of the air. The warmth felt from a fire or the sun, are examples of radiant heat. Materials that absorb infrared rays, as opposed to reflecting them, produce little warmth.

A radiant barrier in Houston is a useful tool for homeowners due to the climate. Traditional insulation materials such as fiberglass insulation, Styrofoam, rock wool and cellulose primarily work by addressing convective and conductive needs. Fiberglass insulation, in particular, is very sensitive to humidity levels.

It is estimated that fiberglass insulation can lose somewhere around 36 percent of its R value, with a humidity change as slight as 1.5 percent. This means that the higher the humidity, the less effective it is at maintaining energy efficiency.

How well does a radiant heat barrier in Houston work? Approximately 50 percent of radiant energy is lost through building ceilings and floors. Another 65 percent escape through the walls. In summer, a home can lose 93 percent of its heat this way. For example, an aluminum barrier installed on ground floors and crawl spaces will prevent the infrared rays from traveling down. It reflects the energy back up into the building, which in turn warms the floor's surface.

A radiant heat barrier in Houston can reduce energy costs in both heating and cooling. It is unaffected by humidity changes and requires no maintenance. It is also completely non-toxic and will not cause cancer.
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Christine Harrell has 1 articles online

Author is a freelance copywriter. For more information about Houston Attic insulation, please visit

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Maintain Energy Efficiency With A Radiant Barrier

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This article was published on 2011/01/28