Metalized Radiant Barrier Vs. Laminated Radiant Barrier

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Metalized Radiant Barrier Vs. Laminated Radiant Barrier

We get a lot of questions about our radiant barrier. When you look at our barrier compared to what most other companies use, you'll notice that theirs is thick and heavy while ours is thin and light.


Why Thicker Isn't Better


What’s the difference between our barrier and our competitors’ barriers? Our light material looks flimsy, but it’s actually quite a bit stronger. The thick material that other companies use, called “laminated radiant barrier”, seems stronger, but has a tendency to sag or even fall down over time because of its weight.  It can “de-laminate” when exposed to extreme environments – a problem that any material that is “glued” together and then placed in a high-heat, high-moisture environment—like your attic—is going to have.


The Problems With Laminated Radiant Barrier


Have you ever tried to use a box that has been sitting in your attic for years? As soon as you grab the box all the glue that used to hold it together comes apart. It’s the same with the laminated barrier. As it sits in a hot, humid climate you start to get bubbles in the barrier, spots where the material starts to de-laminate. Those de-laminated areas create hot spots which do not reflect heat the way it was designed.

If you have a roof leak and your laminated barrier gets wet, moisture will speed up the de-lamination process. Think about putting glue under water—it weakens the bond.


Why We Prefer Metalized Radiant Barrier


Instead of a laminated barrier, we use a metalized foil. Think about how when you open a bag of chips you can see that the inside is a reflective, aluminum material. Our metalized barrier is made in a similar process. For all our techie friends out there, if you’ve ever soldered wire, you know that when you solder you actually melt the metal down into the product. This is how the aluminum is attached to our barrier. There’s no glue, no laminating process.  They actually melt the aluminum down into the plastic scrim. You can leave this in a swimming pool for a week, and it won’t delaminate! When installed in your attic for years and years, it will not fail when exposed to extreme heat or moisture.

So when it comes to choosing a foil barrier, ask yourself: Do you want a heavy laminated barrier that will eventually de-laminate? Or do you want a thin, lightweight metalized barrier that will stay true? We would love to show you our product in person. Just click the button below for a free estimate!


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