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What is Fiberglass Insulation , Pros and Cons ?

Posted by christiane savaria on April 7, 2021

The go-to insulation choice gave homeowners a low-cost way to insulate their homes — the material was widely available and it was easy to install. (Fiberglass Insulation )

Not only does good insulation maintain the desired temperature in your home or business, but insulation also helps you save money on your energy bills.

There are many factors to consider when selecting insulation, including climate, installation, cost, and product performance.

This article looks at fiberglass_insulation.

Fiberglass insulation consists of extremely fine glass fibers and is an insulation material that is found in most homes.

What is Fiberglass Insulation?

Fiberglass insulation consists of extremely fine glass fibers and is an insulation material that is found in most homes.

These days, fiberglass also includes minute particles of plastic, as well, to reinforce the insulating power of the material.

During winter, insulation helps hold heat generated by the furnace indoors. In summer it retards the infiltration of outdoor heat to facilitate cooling by the air conditioner

Fiberglass insulation is the most popular insulation available today and It’s commonly used in three different types of insulation:

  • blanket (batts and rolls)
  • loose-fill
  • rigid boards


Different insulation styles available and Does not promote mildew or mold growth.

Renewability: Almost half of the material is recycled, and the other portion of the insulation is manufactured from sand, which is renewable.

Most manufacturers supply the material in sealed batts, covered with plastic film to avoid issues with breathing the fibers.

While professional installation is required for spray foam insulation, fiberglass insulation can be installed by homeowners themselves.

The plastic covering on fiberglass batts acts as an effective vapor barrier.

Noncombustibility and Easy installation

Re-use it by collecting with a vacuum and relocating.

Insects do not eat fiberglass insulation.

Fiberglass insulation consists of extremely fine glass fibers and is an insulation material that is found in most homes.


May lose R-value if compressed

As with batts, fiberglass dust can irritate lungs, eyes and skin

Improper insulation reduces efficiency

Weight of cellulose can overburden some standard ceiling construction styles.

Compared to spray foam insulation, fiberglass is less effective, especially in extremely cold conditions,

If a person must disturb the fiberglass insulation, they should wear gloves, long-sleeved shirts, pants, and goggles.

Small particles that come into contact with skin can lodge in pores, causing itchiness, rashes, and irritation.

Some fiberglass insulation still uses formaldehyde as a binder, which leaks out into the air. This product may also cause cancer.

Not moisture-resistant

Fiberglass production consumes a lot of energy compared to other insulators

Unless you use plastic-sealed batts, fiberglass insulation requires a vapor barrier to protect it from moisture.

Note :
Fiberglass makes for a good option for homeowners looking to save a few dollars or do the installation as a do-it-yourself project.

The End


see also :

what are the pros and cons of Spray foam insulation ?

What are pros and cons of insulated concrete forms ( ICFs ) ?

Pros and Cons of Blanket and Batt Insulation

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What is Fiberglass Insulation , Pros and Cons ?

What is Rigid Foam insulation ? Pros and Cons

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