Why you should not install a radiant barrier on an attic floor

Dust buildup reduces reflectivityThe attic floor application of radiant barrier is most susceptible to accumulation of dust, while downward facing reflective surfaces used with many roof applications are not likely to become dusty. In time, a dusty attic floor application will lose much of its effectiveness: predictive testing suggests by nearly half within ten years. Potential for moisture condensationCondensation can be a concern when a radiant barrier is installed on the attic floor directly on top of batt, rolled or blown insulation. During cold weather, water vapor from the interior of a... read more

Does radiant barrier foil work in the winter?

Yes. Double-sided radiant barrier has year-round benefits. It helps reduce heat loss in your home (through your attic).  Because warm air rises, radiant barrier foil installed in your attic will help prevent heat from escaping. Enerflex Radiant Barrier (made of Class A fire-rated, double-sided metalized film) helps provide a more consistent, comfortable, indoor temperature. And because nearly 75% of heat loss that occurs in the winter is radiant heat, the addition of a radiant barrier is an effective way to reduce winter heating bills. New energy-saving home improvement products, like Energy... read more

How does radiant barrier reflective insulation work?

Radiant barrier foil insulation, such as Enerflex, is a reflective metalized film insulation that provides a way to reduce high HVAC energy costs. Radiant barrier insulation blocks radiant heat energy instead of absorbing it like typical insulation. A high quality radiant barrier is not affected by humidity and will continue to perform at a consistent level for many years. Radiant barriers work by reducing heat transfer of thermal radiation across the air space between the roof deck (attic ceiling) and the attic floor, where conventional insulation is normally placed. In other words... read more

Enerflex radiant barrier qualifies for 2011 government tax credit

Want to save money by reducing utility bills and be more comfortable while doing it? Enerflex radiant barrier—a highly reflective, double-sided, multilayered material that blocks up to 96% of radiant energy when installed in new and existing homes—has qualified for the American Recovery Tax Credit for insulation. This could equate to savings of 10 percent up to $500.Made in America, Enerflex is two layers of tear-resistant foil, laminated and reinforced with a poly scrim for tear and puncture resistance. Double-sided for efficiency, Enerflex offers radiant barrier panels that are precut to 16-... read more

Death to high energy bills, not installers

When proclaiming jihad on air conditioning bills don’t count yourself or your installer among the victims. Attic roof temperatures can reach 155 degrees on a hot, sunny day. And human can only stand these temps for a very short time, especially when combined with any type of exertion. Each summer there are reports of heat stroke and even deaths suffered from exposure to extremely high temps in attics. So either wait for a cloudy day or do the work early in the morning, before the temps become unbearable. One thing is for sure, once the Enerflex Radiant Barrier has been installed those attic... read more

Compare Enerflex Radiant Barrier's ease of installation to other radiant foil barriers

As radiant barriers gain popularity as a means to block the sun’s radiation of heat into a home, more varieties have become available. Most are nominally sound products but none come close to the ease with which one can install Enerflex radiant barrier. A quick comparison reveals that Enerflex, unlike most radiant foil barriers, requires no prep work. Just flex and release the panel between your roof joists and it’s up.Watch the Enerflex radiant barrier installation video to see how easily you can reduce your attic temperatures and cooling costs. read more

Benefits of installing a radiant barrier in your attic

Reduced Energy Usage, Lower Utility Bills.Since traditional insulation does not prevent transfer of radiant heat, once the insulation has absorbed the maximum amount of heat, the heat is transferred to the space around it and eventually into the living spaces below. Easy to install radiant barrier foil (metalized film) like Enerflex can block up to 97% of the suns radiant heat absorbed through your roof surface, resulting in a 30-degree reduction in attic temperature and big time energy savings. See this short video clip on how to reduce utility bills by installing Enerflex Radiant Barrier... read more

Does Dilbert really love radiant barriers?

Well, not exactly Dilbert, and not exactly Enerflex. But in a Wall Street Journal article, Scott Adams, the creator of the comic strip Dilbert, mentions the value of a radiant barrier as he chronicles his frustrations in endeavoring to discover what is really green and what’s not, as regards designing and building a new home.In this amusing article he uses his characteristic wit to catalog the confusing and aggravating choices facing the average consumer wanting to build a home that satisfies the architect, the builder, the local planning commission, the neighbors and one’s own assumed green... read more

What is radiant heat and how does Enerflex radiant barrier foil reflect it?

An easy way to understand the concept of radiant heat is to stand in front of your grill during a cookout.  The heat you feel standing next to the grill is considered radiant heat. A radiant barrier will reflect that heat. Heat that is radiated doesn’t necessarily have to come from the sun.Enerflex radiant foil barrier is installed inside your attic, beneath the roof sheathing, so how is it expected to reflect the sun’s rays? The answer is it doesn’t have to reflect the sun’s rays to work, but it does reflect the radiant heat generated from those rays.On a hot day, heat from the sun is... read more

Dallas Architect Identifies Key Factors that Constitute a Green, Sustainable Home – Promotes Radiant Barrier

Recently a highly acclaimed architectural firm in Texas published an article that helps identify ways for new and existing homeowners to make their dwelling "green friendly". Gary Gene Olp, Founder and President of GGO Architects outlines steps to becoming energy efficient. Olp and his firm promotes green and energy savings by installing a radiant barrier in the attic. Read on!Dallas - Sustainability and energy efficiency have become significant selling factors during the home-buying and home-building process. In honor of Earth Day, Gary Gene Olp, Founder and President of GGO Architects,... read more

What’s the difference between Insulation and Radiant Barrier?

Fiberglass insulation depends on R-Value (resistance) alone to insulate against summer heat gain and winter heat loss. Thin layers of fiberglass do virtually nothing to stop reflective heat or energy transfer. Fiberglass insulation is also affected by changes in humidity or moisture levels. A 1% to 1-1/2% change in the moisture content of fiberglass insulation can result in up to a 36% decrease in performance.Unlike fiberglass insulation, reflective insulation or radiant barrier foil products, such as Enerflex, are not affected by humidity and moisture changes and will continue to provide... read more

Cool ways to curb air conditioning costs during summer - Radiant barrier anyone?

Cooling a home during the summer with an air conditioning unit can account for nearly 50 percent of an average homeowner’s utility bill. And in the hottest regions of the country, cooling off with central air can generate up to 70 percent of your home’s utility bill.But not to fear: There are several ways to curb your electricity use this summer. One simple way is to crank up the thermostat by one degree during warm weather. The U.S. Department of Energy estimates that you can save up to 3 percent on your summer energy bill for every degree you raise your thermostat for 24 hours. Set your... read more

Best radiant barrier insulation cuts energy use, reduces utility bills

By installing the best radiant barrier foil insulation, such as Enerflex, you can reflect up to 96% of the radiant heat energy from the sun back through your roof. As a result, your attic space is up to 30° cooler, which leads to a more comfortable and consistent temperature throughout your home as well as energy savings.Radiant Barrier / Reflective Insulation Reduces the Workload on Your AC UnitThis increased performance of your insulation and duct work, and decreased workload on your air conditioner and other appliances means Enerflex reflective insulation will pay for itself in utility bill... read more

Extreme How-To video shows the basics of installing Enerflex radiant barrier foil in an attic

Installing Enerflex radiant foil barrier is an easy do-it-yourself project that will help reduce the temperature in your home during the summer and help keep heat in during the cooler months. Combined, Enerflex will help reduce your heating and cooling bills throughout the year. What's more, this Energy Star certified radiant barrier qualifies for a tax credit up to $500.Enerflex Radiant Barrier can be purchased at select Home Depot locations or by special order on The Home Depot website. You can also purchase Enerflex from your local building material dealer. To find the nearest dealer, go to... read more

Does radiant barrier paint work as well as reflective insulation?

Simply put, no. In order for a product (paint, foil or metallic film) to be classified as a radiant barrier, defined by ASTM, the product must produce at least 90% reflectivity. The Reflective Insulation Manufacturers Association (RIMA) says the reflectivity of "radiant barrier paints" range from 10% to 75%, which will provide drastically different results compared to the best radiant barrier insulation. In fact, the application of a ceramic radiant barrier paint to the underside of roof is not an easy do-it-yourself project as the fumes are noxious (VOC respirator needed). If a paint does not... read more

Save energy, reduce utility bills with an easy to install radiant barrier product

Saving money around the house continues to be a major pursuit for homeowners nationwide. And with a focus on “going green”, savvy homeowners are looking for ways to cut energy use to reduce utility bills and their home’s carbon footprint.There are dozens of ways to curb energy use around the home. Sealing drafts by applying caulk and weather-stripping around windows and doors, and applying foam sealer around drafty outlets and piping leading outside can save up to 5 percent on heating costs alone. Most important, installing the proper amount of attic insulation with the proper airflow... read more

Enerflex – the easy to install radiant barrier

We’ve mentioned that it’s easy to install Enerflex radiant barrier in an attic, haven’t we? To make sure we’re doing our job by making it easier for you to do yours, we’ve created a step-by-step how-to video.You’ll see just how easily and quickly Enerflex radiant foil barrier will help you lower the heat level in your attic. Enerflex blocks up to 96 percent of radiant energy and could decrease your attic temperature by up to 30 degrees. That equates to big time savings on your utility bills! read more

Insulation versus radiant barrier — Is there a difference?

To shield a structure from summer heat gain or winter heat loss, fiberglass insulation depends strictly on its R-Value (resistance). Thin fiberglass layers do little to prevent reflective heat or energy transfer, and are affected by humidity and moisture level changes. For fiberglass insulation, a mere 1 to 1.5 percent moisture level change could result in a performance decrease of up to 36 percent.Reflective insulation or radiant foil barrier products such as Enerflex aren’t affected by humidity and moisture—unlike fiberglass insulation. Enerflex continues to provide energy savings through... read more

How does a radiant barrier keep me warmer in the winter?

Years ago I used to work at a restaurant and when we baked our potatoes we wrapped them in aluminum foil to keep them warm longer. Well, the same concept works in your home’s attic. Just like wrapping a baked potato in aluminum foil keeps a potato warm longer, installing Enerflex radiant barrier in your attic will help retain the heat in your home.An ENERGY STAR approved radiant barrier will help reduce the heat you would typically loose when it’s cold outside, which helps you save on your heating bill. The next time you have to crank up the heat in the winter, think of your home as a giant... read more

How does a radiant barrier work?

When the sun heats a roof, it's primarily the sun's radiant energy that makes the roof hot. A large portion of this heat travels by conduction through the roofing materials to the attic side of the roof. The hot roof material then radiates its gained heat energy onto the cooler attic surfaces, including the air ducts and the attic floor. Radiant barrier / radiant foil barrier insulation reduces the radiant heat transfer from the underside of the roof to the other surfaces in the attic.A radiant barrier's performance is determined by three factors:Emissivity (or emittance) – the ratio of the... read more

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