Applegate Insulation

Frequently Asked Questions

Where can I find an installer?

Applegate Insulation professionals are spread throughout the United States. We'd love to connect you to the professional that best meets your needs, please fill out the "contact us" form.

Is Applegate Insulation a sound investment?

That depends.

For existing homes, an installer of Applegate will have to determine your existing insulation levels and needs to ensure that adding Applegate makes sense for you. Most older homes though can benefit from adding Applegate in attics and walls. The energy savings from adding Applegate may cover the cost of installation in less then a year, Making retro-fitting your home with Applegate Insulation one of the best investments you can make!

For new homes, Applegate Insulation almost always makes sense from an investment perspective. In just about every case, using Applegate in your new home will pay for itself within a year or two in reduced energy costs alone. When factoring in the potential for downsizing HVAC equipment, the payback can sometimes be immediate! In other words, using Applegate may not cost you anything!

What is the best insulation for a "Green Home" / environment?

That's easy - Applegate Cellulose Insulation. 
When you install Applegate Insulation you are helping to protect the environment. Applegate is, made of 80-85% recycled paper, diverting discarded papers that would otherwise be sent to landfills. Applegate Cellulose Insulation also has the lowest embodied energy score of any major insulation. It takes less energy to produce and transport Applegate, which means fewer emissions are released in making it. Fiberglass uses approximately 10 times more energy than Applegate to produce and transport, while foam products, derived from petroleum, use even more. In addition, neither of these products is recyclable. When you combine Applegate's environmentally sound features with its outstanding ability to conserve energy in hundreds of thousands of homes across the country (and worldwide), you would think the color of our insulation would be green.

Can Applegate be installed over existing insulation?

Provided that the existing insulation is properly installed and free from defect (moisture damage, etc.) Applegate Installation may be installed over existing insulation. A little Applegate can go a long way. In fact, as little as 4 inches of Applegate applied over fiberglass in your attic will restore the effective R-value of the fiberglass in heating and cooling seasons.

Do different installation methods make a difference?

Installation is critical in determining how insulation performs in your home. The walls, ceilings, and floors of your home are full of odd shaped cavities and obstacles like plumbing, air ducts, and wiring. For your insulation to work effectively, it must completely fill around these obstructions without gaps or voids. Applegate Cellulose Insulation is sprayed or blown into walls, conforming to your home and surrounding you and your family with a seamless insulation system. Fiberglass batts, on the other hand, are cut and pieced together, leaving gaps, voids, & areas of compression. With Applegate walls are fully and tightly insulated, forming a monolithic thermal barrier. No more gaps. No more voids. No more drafts. Just years of comfort and energy efficiency.

How much insulation should I have in my home?

Each area of the country has different recommended R-Values for insulation. Please visit our Department of Energy reccomended R-Value page to discover the recommended R-Values for your area.


What Tax Credits are available when I use Applegate, and how do I get them.

Please visit our Applegate briefing on Insulation Tax Credits for details.

Are there incentives available from my local utility company?

Utility companies are encouraged through various federal and state initiatives to support consumers and businesses seeking to implement energy conservation programs. Check your utility company’s website or call their local office to find out what incentives are available in your area.

What is R-Value?

R-Value is the industry standard for measuring the insulating power of any material; The higher the R-value, the greater the insulating power. Ask your seller for the fact sheet on R-values. But that's only part of the insulation story. Go to "The Truth About R-Values" page for additional information.

What are the thermal benefits of Applegate?

Applegate Insulation has a higher density than many other insulation types available, providing excellent resistance to air-infiltration, radiation of heat energy and convective currents. Additionally, it has a higher R-Value/inch—as much as 3.8 R/inch depending on product depth and density of application; that means more insulating power with less product.

What are the sound control benefits?

Sound waves move through the air and space. The same density and custom fit provided by Applegate for the purpose of fire safety and thermal control, also increases its ability to control sound. This means a building insulated with cellulose will be very quiet.

What are the fire resistance characteristics?

Applegate Insulation is manufactured and tested by R&D Services (third-party) in accordance with ASTM C739. It meets or exceeds the fire-resistance testing under that standard. For more information regarding how, in fire tests, Applegate out performs traditional insulation by up to 55% click here.

How does Applegate recommend we insulate cathedral ceilings?

Applegate recommends that you dense pack non-ventilated cathedral ceilings. One building science study entitled "Report On Roof And Wall Details: Upper Canada Post And Beam" points out that cathedral ceilings are, "nothing more than well insulated exterior walls with insulating sheathing which is sloped." Applegate has been used for years to dense pack cathedral ceilings with excellent results, outperforming the ventilated method. For more information take a look at Consumer Update #14: How To Insulate Cathedral Ceilings.

Do I still need a housewrap or building paper when using Applegate?

When an insulator combines air seal (caulk or foam) with cellulose wall-spray, housewrap or building paper is not needed to control air movement through the wall. However, this does not at all affect the second purpose that a housewrap or building paper serves: that of a drainage plane. Consideration should still be given to a drainage plane based on the local climate. Some areas of the country receive so much rain that the sheathing beneath the exterior finish will almost certainly become wet. The climate in some of these regions may offer only limited drying potential. In these areas, a drainage plane (which may be considered a "housewrap" is certainly recommended.

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What are the fire resistance characteristics?

Applegate Insulation is manufactured and tested by R&D Services (third-party) in accordance with ASTM C739. It meets and exceeds the fire-resistance testing under that standard.  For more information regarding how, in fire tests, Applegate out performs traditional insulation by up to 55% click here.

Does the fire retardant lose its effectiveness as the product ages?

No. In fact, it would take 300 hundred years at 100% humidity and temperatures in excess of 150ºF before Applegate would even begin to show signs of losing any of its fire retardancy.

Applegate has great fire resistant properties which lasts for hundred of years!


  • Do not fill soffits with insulation. 
  • Use soffit vent baffles to allow the soffit to stay open above the insulation for proper air flow. 
  • Insulate the inside of the access hole cover with Cotton Armor insulation to complete the job.


To help avoid fire: Keep insulation at least 3 inches away from the sides of recessed light fixtures. Do not place insulation over such fixtures so as to trap heat. Also keep insulation away from exhaust flues of furnaces, water heaters, space heaters or other heat-producing devices. To be sure that insulation is kept away from light fixtures and flues, use a barrier to permanently maintain clearance around these items. Check with local building or fire officials for guidance on installation and barrier requirements.

Turning yesterday’s news into tomorrow’s insulation.
Applegate Insulation 1000 Highview Drive Webberville, MI 48892 Phone 800 627 7536 Fax 517 521 3597
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"For every house is built by someone, but the builder of all things is God." Heb. 3:4 (NASB)