Getting to Know You, Getting to Know All About…Different Types of Insulation

While most people know there are several different types of insulation, not many are familiar with their many differences. Fiberglass, cellulose, spray foam: which one will you choose for your home? As the trusted name in home insulation for Minneapolis and the surrounding areas, we would like to compare and contrast the different options in insulation to help you choose the right one for your unique home.

home insulation Minneapolis


Of the three most popular types of insulation, fiberglass has been around the longest and is more commonly used. Fiberglass is man made and can be installed in both new and existing homes, garages, attics and more. It is non-combustible, non-corrosive & non absorbent. If exposed to moisture, fiberglass will not hold water.

Fiberglass insulation isn’t the pink stuff of the past. Fiberglass insulation from Lewis Insulation is high-quality JM fiberglass insulation. When you have us upgrade your home’s insulation with JM fiberglass insulation, you can expect year-round comfort. Whether it be your attic, walls, floors or ceilings, you can be assured that you will use less energy to heat & cool your home.

Spray Foam 

Closed cell polyurethane spray foam insulation is one of the most advanced insulating materials available on the market today. We use state-of-the-art equipment and have completed certified training and continued education on spraying polyurethane spray foam.

Closed cell spray foam offers the highest R-value over all other insulation materials. JM Corbond III offers a true R-7 per inch.


Cellulose insulation is considered a greener material than fiberglass, and being made of paper, does not pose any health issues to the installer or home occupants.

Cellulose insulation is also chemically treated to resist fire, insects and mold. It has a better resistance to air flow and prevents the upward movement of air caused by temperature differences. The R-value of cellulose insulation actually improves during cold weather.

We install blown-in cellulose insulation in both new and existing attics and walls, as well as garages, pole buildings, etc. Cellulose insulation is manufactured from recycled newspaper. It is non-toxic, and will not rot, decay or contribute to mold growth. Cellulose insulation is considered “green” as it is made from recycled newspaper and requires less energy to manufacture.

As you can see, each of these types of insulation offers improved efficiency and come with their own unique set of benefits. Which one will you choose? To learn more about home insulation in Minneapolis, give us a call at 763-477-2612 or contact us. We serve the entire Twin Cities metro.