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What Is the Best Insulation for the Attic?

As a significant source of energy loss in homes, the attic is a great place to install insulation. Whether you’re a builder working on new home construction or you need to re-insulate your 20-year-old house, we recommend starting with the attic!

But what kind of insulation should you use? While your best bet is talking to insulation professionals, it’s helpful to have a little background information about insulation for attics, as there are a few different options.

Do you need to insulate your attic? Get in touch with Gold Star Insulation by calling 916-229-8445 or contacting us online. Or keep reading to learn more about your attic insulation options!

Best Attic Insulation: Radiant Barrier & Blown-In

Your two main options for attic insulation are radiant barrier and blown-in.

Radiant Barrier

Installed under the roof, radiant barrier insulation works differently than other types of insulation. One of the best types of insulation for attics—especially in warm climates like here in the Sacramento area— radiant barrier is foil insulation that is installed to keep your home cooler and more comfortable. It does this by helping the roof reflect, rather than absorb, heat from the sun.

Radiant barrier attic insulation helps:

  • Lower your energy bills
  • Make your home a lot cooler in the summer or warmer in the winter and more comfortable
  • Improve the performance of your AC

Although most homes in our area can benefit from a radiant barrier, this type of insulation is particularly helpful for homes with:

  • Little or no shading from trees
  • Asphalt roofing (which more easily absorbs heat from the sun)
  • Air ducts in the attic


Although radiant barrier insulation is ideal for the attic, it’s not the only option. Blown-in cellulose and fiberglass can also be cost-effective attic insulation solutions.

Cellulose insulation can be installed in various parts of the attic. Not only is cellulose one of the most environmentally friendly types of insulation, but it also offers superior soundproofing abilities.

Blown-in fiberglass insulation can also be used for attics, and it offers the same benefits as cellulose. Fiberglass helps keep your home more energy-efficient and comfortable all year round.

Blown-in attic insulation can help:

  • Lower your energy bills
  • Make your home a lot cooler in the summer or warmer in the winter and more comfortable
  • Improve the performance of your HVAC system

Attic Insulation Installation in the Sacramento, CA Area

Gold Star Insulation offers attic insulation services throughout the Sacramento area—we can install radiant barrier, fiberglass and cellulose. Our team can even install eco-friendly denim insulation. No matter your needs, we have you covered.

Whether you need to replace old, rodent-infested insulation or need to insulate the attic of a new home, contact Gold Star Insulation today by calling us at 916-229-8445 or filling out our contact form!

You may also find these resources to be helpful:

Where should you insulate in your home? Check out our interactive infographic:

Products We Install
Energy Audits

Our team can help you save money with a home energy audit and air sealing services.


Our insulation team installs batt and blown-in fiberglass insulation.


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

Spray Foam

Gold Star Insulation is a leading installer of spray foam insulation in the Sacramento area.

Radiant Barrier

An attic radiant barrier can help keep your home cooler and more comfortable.

Insulation Removal

Gold Star Insulation provides home insulation removal services.

Air Sealing

We are committed to saving you money by sealing your attic—which is the main source of air leaks in the home.

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