WareHouseFoil Logo small for AFdotcom siteDue to overwhelming popularity of using our radiant barrier foil insulation in commerical applications, we've created a secondary website compeltely dedicated to installing radiant barrier in those type of structures. Please visit www.WareHouseFoil.com (or click on the logo to the right) to see more complete install photos with instructions & videos on how to install radiant barrier foil in metal buildings, sheds, barns, warehouses, garages, etc.

On a non-conditioned building, there really is nothing better than a radiant barrier to control the heat gain. Structures like sheds, carports and barns can all benefit greatly by adding a layer of radiant barrier near the roof line and any sun-catching walls to keep the heat out.

atticfoil in warehouse

Do you have a warehouse, storage facility, or airplane hangar that you are trying to keep cooler? It's simple if you add a radiant barrier since these spaces are typically non-conditioned and so comfort is the main goal.



The easiest way to install the AtticFoil® on a non-conditiond building is to run it between the purlins near the roof.  

You will be amazed at how much cooler the warehouse space below feels. Normally, heat would radiate off the roof and make everything under the roof very hot, regardless of how great the ventilation is.  The foil works best in buildings without air condition when it it closest to the outside - acting as the first line of defense between the bulding and the hot roof.

Radiant barrier is invaluable since it works to keep the surface temperatures down, which directly correlates to comfort. In a space that is non-conditioned, this is the best product you can use to make it comfortable without adding a/c.


If you plan on conditioning your metal building or warehouse, there are several steps involved.  This is by no means a completely comprehensive installation guide, but rather a general guide on how you can incorporate a radiant barrier in the assembly to maximize the comfort and efficieny of the foil.

BLOCKING HEAT: If heat gain is what you're addressing, then the foil is best placed toward the outside of the building.  From the outside, here is how the typical layering would go:

  • Roof sheeting

  • Battens/furring strips (REQUIRED AIR SPACE)
  • Radiant Barrier Foil House Wrap (Foil side facing the sky/air space)
  • 2 layers of unfaced insualtion
  • Fabric liner
  • Banding/purlins/supports

Again, this is a typical layering and an example of how to add radiant barrier foil to a conditioned building or warehouse. Not all applications will follow this layering.  

For more information on installing a radiant barrier on a non-conditioned structure (or a conditioned structure), check out this page: Installing a Radiant Barrier in a Barn or Shed or send us an email with your questions.

Customer Testimonial on Using Radiant Barrier Foil in a Conditioned Metal Building

On metal buildings, there really is nothing better to use than a radiant barrier to control the temperature. To maximize results, it is best to install the AtticFoil® closest to the outside of the structure; this can be between (or above) the purlins, or directly to the wood frame. Doing this this as your first line of defense will set you up for maximum benefit and a major reduction in the surface temperature of the structure. Then, if you plan on conditioning the building, you can add your traditional insulation before you finish up the walls.

Below is a video of a customer testimonial who used AtticFoil® Radiant Barrier in his metal building, which will be conditioned and used as a habitat for bats.

 His reaction AFTER the foil was installed, before even adding any insulation to the building:

Customer DIY Radiant Barrier Foil Installation Pictures - Metal Buildings

atticfoil install in metal building 002 atticfoil install metal building 2010

In this installation the foil was attached to the metal siding and roof and left open to the air space below the line of foil. Buy Radiant Barrier Foil.

On a non-conditioned structure like a warehouse or a shed, there really is nothing better than using a radiant barrier to temper the heat.

metal building install 4

atticfoil install metal shed

After the install wooden shelving was added for storage. When adding items on top of a foil installation, keep in mind that contact with both sides of the foil eliminates effectiveness in those particular areas. 

Here the foil was tabbed and stapled to the sides of the wood framing. The other option was to staple directly over the framing, which could have saved some time and been just as effective.
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Here is another view of the installation stapled to the inside of the stud frames.  Notice the garage door opened on the side; having plenty of ventilation in a non-conditioned structure goes a long way to keep air temps low.

Simply run AtticFoil® between the purlins for an easy install and the best results by having the foil closest to the exterior sheathing. If you don't like the look of the foil, you could always add ceiling tiles or drywall below it.

commercial building radiant barrier installation

commercial building radiant barrier installation 1

This was an open warehouse that housed employees daily. They decided to staple the foil up above the wooden framing to maximize the effect of the foil blocking the heat. The warehouse is now a much cooler place for the employees to work and the management has solved the problem of a workspace that was getting too hot to work in.

Buy Radiant Barrier Foil in the 60" wide for commercial applications like this.

AtticFoil Radiant Barrier Supply, LLC, Insulation Contractors Equipment & Supplies, Argyle, TX

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