Blown-In Cellulose Insulation: Sustainable, Safe, and Effective
“I don’t often write reviews and that should speak to the quality of work Craig and his crew at 3e do. I hired Craig to add additional insulation to my 1971 ranch with a low pitch roof. Not only did Craig do a thorough job insulating and air sealing the attic but he even fixed a few things that other contractors had ignored. Craig charges fair and competivie prices for his work but what really sets him apart was the real value he provided. He took extra steps like adding additional pieces of batt insulation over snap in flush mount lights to prevent insulation from raining down in the future. He air sealed hard to reach spots that others would have ignored. Craig really cared about my home and my needs and not just his bottom line.
Thank you Craig and 3e, I would not hesitate to hire them again and my home is so much more comfortable!”
What is Blown-In Cellulose Insulation?
Blown-in cellulose insulation is an eco-friendly insulation material made primarily from recycled paper products, such as newspaper and cardboard. These materials are treated with fire-retardant chemicals, typically borate, to make them safe and effective for home insulation. Blown-in cellulose is installed using specialized equipment that blows the material into wall cavities, attics, and other spaces, forming a dense, insulating layer that reduces heat transfer and enhances energy efficiency.
The Benefits of Blown-In Cellulose Insulation
Exceptional Energy Efficiency
Blown-in cellulose insulation is known for its excellent insulating properties. The dense composition of cellulose creates a highly effective thermal barrier, reducing heat transfer in and out of your home. This improved energy efficiency can lead to significant savings on your heating and cooling bills, keeping your home comfortable all year round.
Environmentally Friendly
One of the most significant advantages of blown-in cellulose insulation is its sustainability. Made from up to 85% recycled materials, cellulose is one of the greenest insulation options available. By choosing cellulose, you’re not only insulating your home but also contributing to environmental conservation by reducing waste that would otherwise end up in landfills.
Superior Soundproofing
The dense nature of cellulose insulation also provides excellent soundproofing capabilities. It effectively absorbs sound, reducing noise transfer between rooms and from external sources. Whether you’re looking to create a quieter living space or enhance privacy, blown-in cellulose insulation is an ideal choice for sound control.
Fire Resistance
Although cellulose is made from paper products, it is treated with non-toxic fire retardants, making it highly resistant to fire. In fact, it can slow down the spread of flames, providing an added layer of protection for your home and increasing the safety of your living environment.
Mold and Pest Resistance
The borate treatment applied to cellulose insulation not only provides fire resistance but also protects against mold growth and pests. This treatment makes the insulation less appealing to insects and rodents, and it also helps to prevent the buildup of mold in damp conditions, contributing to a healthier indoor environment.
Effective Coverage
Blown-in cellulose insulation can be installed in hard-to-reach areas and irregular spaces, ensuring complete coverage and reducing gaps that can lead to energy loss. Its ability to settle into every corner and crevice makes it particularly effective for retrofitting older homes where traditional insulation may not suffice.
Cost-Effective
Compared to some other insulation options, blown-in cellulose is often more affordable, both in terms of material cost and installation. Its efficiency and long-term performance also mean that you’ll continue to save money on energy bills over the years, making it a cost-effective investment in your home’s comfort and energy efficiency.



