• 15121 Marlboro Pike, Upper Marlboro, MD 20772
    260 East Boulevard North Hagerstown, MD 21740
  • |Contact Us
Call Your Local Pros Today! 301-358-6411

How Much Does Cellulose Insulation Settle?

The insulation in your home is designed to slow the transfer of heat between the interior and exterior of the building. It is used in combination with vapor barriers and air sealing, which help to prevent the loss of conditioned air, as well as the entry of outside air. There are several types of insulation available, each with different strengths and weaknesses. As a loose-fill insulation, cellulose provides high insulating values, represented by its higher R-value, and it creates a good barrier against air leaks and infiltration. However, like other loose fill insulation, it also has a tendency to settle over time, reducing its R-value and its ability to prevent air movement.

How Much Does Cellulose Settle?

Cellulose insulation can settle by as much as 20 percent, depending on how it is installed. This could leave gaps in a wall as the insulation compacts vertically, or it could leave space between a floor and the insulation beneath it. Fortunately, a high-quality, professional installation can prevent most of the problems caused by settling.

Professional insulation contractors know how much each type of cellulose can settle, and they can counteract the phenomenon by installing extra. Called dense packing, the cellulose is slightly compressed during the installation process, allowing more fibers to fit in the same space. As the extra air in the cellulose is released, the compressed fibers expand to fill the void, reducing or eliminating settling.

Inexperienced installers may not have the experience or equipment to provide a quality blown-in installation, resulting in significant settling. By having a professional perform the installation, you can be assured that it is done correctly, with minimal settling and long-term energy-efficiency improvements.

Benefits of Cellulose

When installed correctly, cellulose has several benefits over other types of insulation, including:

  • Higher R-value than fiberglass
  • Better air-sealing performance than fiberglass
  • No harsh chemicals like spray or rigid foam
  • Less expensive than spray foam
  • Made from over 80 percent recycled content
  • Treated with borate to provide fire resistance

For many homeowners, especially those minimizing their environmental impact, cellulose is a cost-effective, energy-efficient alternative to fiberglass, foam or other types of insulation.

Get a Free Insulation Estimate from Accurate Insulation in Maryland!

Cellulose Insulation Services in DC & Maryland

For a fast, professional cellulose installation, contact our team at Accurate Insulation today. Our licensed, certified professionals can provide an energy-efficient installation with minimal settling, and we serve the entire DC metro area.

Contact us or call (301) 358-6411 today for a free estimate!

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.


Accurate Insulation is proud to be a leading supplier of quality window blinds.

Are You Sure?
Stay on Page
You are about to leave this Accurate Insulation - Upper Marlboro and enter a third-party site. Accurate Insulation - Upper Marlboro and Installed Building Products have no control over, and accept no liability, obligation, or responsibility for, the contents or performance of other websites. Any such link does not constitute an endorsement or any representation regarding, the linked website, its content, its owner, its performance, its owner’s products or services, or any forward-looking statements found in.
Leave Page
Stay on Page