What is Blow-in Insulation?


At Comfenergy, we use blow-in insulation rather than the traditional rolled out insulation. It is frequently going to be either cellulose or fiberglass. We specifically use a variety of open cellulose called Tru-Soft. Tru-Soft is a Dr. Energy Saver patent protected technology. Read through to see what is actually going on here. 

Click here to see photos of Tru-Soft Insulation! 

The Physical Description: 

  • Loose chunks of cellulose 

  • Typically made out of recycled materials like denim or newspaper 

  • Grey fluffy appearance  

How it Works:

  • Tru-Soft is blown in through tubes that will come through windows or your hatch

  • To make air tight, we treat all points of potential points of leakage before blowing in the Tru-Soft
  • Create a tick layer which eliminates the issue of "heat bridges" or "gaps" because surrounds all of the beams and leaves no gaps where other types of insulation might.   

The Benefit: 

  • More consistent insulation

  • Has boric acid which repels pests and does not allow the growth of mold and mildew 

  • Fireproof 

  • Environmentally friendly! Since the primary "ingredient" is recycled paper, it is very eco-friendly


  • Rolled-Out Fiberglass: typically made with glass wool is a man-made vitreous fiber

    • Pros: This is typically the cheapest option, it is great for soundproofing, and it is not flammable! 

    • Cons: Fiberglass practically invites mold, mildew and pests, and it has been reported to get into the ducts and circulate through the home causing irritation to skin and respiratory system. It is definitely an irritant when in direct contact with skin.

  • Spray Foam
    • Pros: Spray Foam is very airtight and a vapor barrier along with being a soundproofing agent.  

    • Cons: This tends to be more expensive. 

  • Radiant Barrier
    • Click here to access a brief blog exclusively about Radiant Barrier!  
    • Click here to look at a photo album of what Radiant Barrier looks like! 


We recognize that there is not a "one-size fits all" solution when it comes to insulating your home, and we frequently use a combination of these methods to insulate your home. Every home is unique, as the process we use to come up with the best course of action for you home reflects that. 


Click here to get a free quote today.