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Attic Insulation: Blown-In vs. Radiant Barrier

Is improving the comfort and energy efficiency of your home on your list of New Year’s resolutions? Insulation is a practical option for going about this. If you need to insulate your attic, you have a couple different options: blown-in attic insulation or radiant barrier insulation.

Here at Accurate Insulation, we install both blown-in and reflective insulation. Keep reading to learn more, or contact us to start your project!

Blown-in Attic Insulation

Blown-in attic insulation can be either loose-fill cellulose or a fiberglass blown-in blanket system.

Loose-fill Cellulose & Fiberglass

Cellulose insulation can be installed in attic floors and walls and offers superior soundproofing abilities. The way blown-in or loose-fill cellulose attic insulation works is by trapping hot air—it fits snugly behind walls, around pipes, wiring, etc. and leaves little to no air pockets.

For attics, blown-in fiberglass is often used. Like cellulose insulation, this type of attic insulation is installed in the floors and walls.

Blown-in attic insulation offers a number of benefits. It can:

  • Lower your energy bills
  • Reduce noises between different levels of your home (ideal if you use your attic as a bedroom)
  • Make your home more comfortable
  • Improve the overall efficiency of your AC
  • Help protect against water infiltration and moisture issues

Blown-In Insulation

Radiant Barrier Attic Insulation

Radiant barrier, or foil insulation, works a little differently. Radiant barrier attic insulation isn’t installed in the floors. It’s installed in the ceiling, below your roofing. Radiant barrier insulation works by helping your home reflect, rather than absorb, heat from the sun. Your roof absorbs all that energy and can get really hot (up to 150 degrees!), so you can imagine how much more comfortable a home with radiant barrier insulation is. Homes with foil insulation in the attic are approximately 10 degrees cooler than homes with no attic insulation. When it’s 85 degrees and sunny outside, this can make a huge difference!

Radiant barrier attic insulation can:

  • Cut down on your energy costs
  • Make your home a lot more comfortable
  • Improve the performance of your air conditioner

Attic Radiant Barrier

Do you need attic insulation contractors in Maryland or Washington, DC? Contact Accurate Insulation! No matter which type of attic insulation you need to install—or if you need to install both—we’ll make sure it’s the right solution for your needs.

Products We Install

Our insulation team adds energy efficiency, comfort & value to homes & buildings.

Spray Foam

Accurate Insulation is proud to be a leading installer of spray foam insulation.


Environmentally friendly and effective, cellulose works well in homes and buildings.

Radiant Barrier

We can help keep your home cooler and more comfortable with an attic radiant barrier.

Garage Doors

When you turn to Accurate Insulation for garage doors, you work with a great team.


No matter your gutter needs, the Accurate Insulation team has you covered.

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