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What Is the Best Insulation for Attics?

Not that it ever gets too cold here in Southern California, but the temperatures are starting to get even hotter! Are you staying cool and comfortable at home (while keeping your cooling bills as low as possible)?

One easy way to make your home more energy-efficient is to insulate the attic. After all, attics are one of the most significant sources of energy loss in homes. It’s important that they are adequately insulated. What shape is your attic in? If you need more insulation, what should you install?

Your Options: Reflective & Thermal

What is the best insulation for my attic? It’s a question many homeowners ask. One of the biggest determining factors is where you live. Here in the San Diego and Los Angeles areas, where it stays warm all year, it makes the most sense to use both a radiant barrier and thermal insulation solution.

Thermal insulation, like fiberglass and cellulose, can be installed in the flooring, knee walls, etc. Radiant barrier insulation is installed under the roofline, to help your roof reflect, rather than absorb, heat from the sun and keep your home cooler and more comfortable.

Fiberglass Attic Insulation
Radiant Barrier


Installing insulation in your attic can help:

  • Maximize your home’s energy efficiency and reduce your utility bills
  • Increase your home’s interior comfort levels
  • Improve the efficiency of your air conditioner
  • Contribute to a healthier environment

San Diego & Los Angeles Area Attic Insulation Installers

The team at OJ Insulation installs radiant barrier, cellulose and fiberglass insulation in homes throughout Southern California. We have experience insulating all different types and sizes of attics and can help you with your project. Whatever your insulation needs, we have you covered.

Contact us today to learn more about our services or if you’re ready to get a free estimate!

You may also be interested in reading:

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

Home Insulation

We insulate attics, walls and crawl spaces.

Commercial Insulation

We insulate warehouses, offices, studio spaces & more.

Insulation Removal

Do you need to remove old insulation? We can help.


We work with builders to install fireplaces.

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