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With the current tidal wave of environmentally-friendly products hitting the market, figuring out which are actually worth the money can be like finding a needle in a haystack. But of all these energy saving products, eShield™ multi-layer foil insulation truly rises above the rest.

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Blown-in Insulation: Fiberglass vs. Cellulose

Technicians working on a blown-in insulation project

Blown-in insulation is one of the most cost-effective insulation solutions that homeowners canchoose from. Available in cellulose and fiberglass varieties, blown-in insulation is highly effective in preventing heat loss and heat gain in your home.

The blown-in insulation product available from eShield™ is made from 100 percent recycled fiberglass. It is the only insulation product in the world that is guaranteed to retain its original R-value (thermal resistance) for as long as you own your home. This product is an essential part of our “perfect attic system,” which also incorporates our air sealing service and our multi-layer thermal reflective radiant barrier insulation product.

The process of installing blown-in insulation is a relatively easy way to insulate your roof and attic. It is best installed by professional technicians who are well-equipped to perform the procedure for you. Whether you plan on installing fiberglass or cellulose insulation in your home, you have to be aware of the characteristics of both. 

  • Manufacturing – Blown-in cellulose insulation is made up mostly of plant fiber from materials such as newspaper and cardboard, which is treated with chemicals to lessen their flammability. Fiberglass, on the other hand, is made from tiny fibers of glass that are collected to produce a material with a texture similar to wool. Hence, it is often referred to as “glass wool.”
  • Ease of installation – For both blown-in cellulose and blown-in fiberglass insulation, installation is best carried out by experts. Cellulose can be very messy to install while fiberglass can cause skin irritation and can be hazardous when inhaled.
  • Insulation performance – For the most part, the R-values of  blown-in cellulose insulation and blown-in fiberglass insulation are the same. Cellulose tend to have a slightly higher thermal resistance than fiberglass, although cellulose can settle or become thinner over time by as much as 20 percent, creating concern for some property owners that this could affect the material’s insulating performance. Take note, however, that cellulose has a great ability to maintain its R-value even after settling.
  • Fire hazard – Contrary to popular belief, blown-in cellulose insulation will not burn easily provided that they are treated with fire retardants. These fire retardants can even help in repelling insect pests and rodents. Fiberglass, on the other hand, is also difficult to set on fire because it is made of glass. However, both cellulose and fiberglass will burn eventually if the temperatures are high enough.

For more information about your options for domestic and commercial blown-in insulation products, please call us now at 866-978-9170 or send us a message. We will be more than happy to assist you.