Why Cellulose?

A tried-and-true method of insulating homes for decades, cellulose is made from recycled paper with one of the highest percentages of post-consumer waste content of any insulation.

Its excellent sound insulating properties, high R-value per inch, and industry-leading environmental properties make cellulose insulation a perfect choice for insulating attics and walls.

Additionally, it is an excellent choice for adding insulation in walls of older homes due to the ease of installation.

Technical Library

Click below to view resources for builders, architects, homeowners, and others interested in learning about cellulose insulation.

Find a Manufacturer

View all cellulose manufacturers based on your state or province.


AIA Blueprint For Better: Design To Change Climate Change

It’s encouraging to see the American Institute of Architects (AIA) launching their BLUEPRINT FOR BETTER initiative with the goal of reducing “climate change and inequities in the built environment.” That’s a fancy way of saying improve design in the...

Why Cellulose Insulation Fits Well With Earth Day

Cellulose Insulation Makes Sense Earth Day & Every Day. With fears of global warming and climate change fast approaching a tipping point, the intent of Earth Day has never been more relevant. Conceived in 1969 at a UNESCO conference held in San Francisco,this...

How To Calculate R-Value Of Settled Cellulose Attic Insulation

Cellulose Answer Man: Your Source For Information. Sam asks:Are calculations of thickness for the depth just after installation or after it has settled for 3-4 years as mine has. Original depth was 16 inches, now it is about 12 ” so what is the true R-value? Answer:...

About Us

For over three decades, the Cellulose Insulation Manufacturers Association has served as the trade association for the cellulose segment of the thermal/acoustical insulation industry.

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