fIBERGLASS

INSULATION

Fiberglass insulation is the industry market leader, and the world's most popular choice for insulation.

Everything You Need To Know About Fiberglass Insulation:

What Is Fiberglass Insulation?

FORMALDEHYDE-FREE, AND NATURALLY FIRE RESISTANT THERMAL INSULATION

Fiberglass insulation is an insulative material made from at least 35% recycled glass called cullet.  


The primary ingredients of fiberglass insulation are

soda ash, silica sand, and limestone.


The fiberglass insulation raw materials are melted and spun into thousands of tiny glass fibers by a spinning machine called a fiberizer.     


The mounds of glass fibers are then sprayed with a polymer glue and transferred to a 500-degree oven.


The fiberglass insulation is then matted, compressed, and cut to a specific R-Value.

 

How Fiberglass Insulation Works

GLASS-BASED THERMAL INSULATION

Fiberglass insulation is a glass-based thermal insulation.

 

Glass is a poor conductor of heat, making it an effective material for resisting heat transfer.     

 

As heat tries to pass through the fiberglass insulation, the glass fibers form tiny pockets of air, which slow down the rate of heat transfer.  

Fiberglass insulation is most effective against conductive heat transfer.

 

Where To Use Fiberglass Insulation

BATTS, ROLLS, & LOOSEFILL INSULATION

Fiberglass insulation is available in three primary forms; Batts, Rolls, and Loosefill Insulation. 

 

Batts come in pre-cut lengths designed to fit conventional wall framing cavities.                                        

Rolls are longer pieces of insulation which are fabricated and cut to the desired length during the installation process. Rolls are most often used for attic flooring and crawlspaces.                                            

Loosefill fiberglass insulation is designed to be blown (or sprayed) into place.  Specialized equipment is used to apply the loosefill fiberglass insulation.  Loosefill fiberglass insulation is ideal for attics, and it can be applied over existing insulation.

 

Fiberglass Insulation Wellness & Safety

Non-Combustible

Fiberglass insulation is classified as noncombustible and passes the requirements of (ASTM E136) with a flame spread of 0.

Dust Free

Fiberglass is engineered to produce less dust than other forms of insulation.

Rodent Resistant

Fiberglass insulation has natural rodent repellent properties and it is not a food source for pests.

Moisture & Mold Resistant

Noncorrosive (per ASTM C764)

Does not absorb moisture (per ASTM C1104)

Does not support mold growth (per ASTM C1338)

 

Why Choose Fiberglass Insulation

PROS

CONS

     Fiberglass insulation is low-cost, effective, and easy to install. 

     It can absorb up to 99% of the sound waves that come into contact with its surface, making it one of the most effective sound reducing insulators.

     Fiberglass insulation produces up to 60% less dust than cellulose-based insulations, and creates a cleaner air atmosphere.

     It is formaldehyde-free, and naturally fire-resistant, making fiberglass insulation one of the safest form of insulation available. 

     Fiberglass insulation is an excellent insulator for conductive heat transfer, but its effectiveness is limited against radiant heat transfer. 

     Fiberglass insulation alone, provides no air sealing to address convectional heat transfer.

 

Our Reccomendation For Fiberglass Insulation

Fiberglass insulation is the best choice if you are updating existing attic insulation in a home.  It is lightweight and can be installed over existing insulation.  Fiberglass insulation can also be a great choice for new construction projects due to its low-cost and ease of installation.  To optimize the effectiveness of fiberglass insulation, make sure all air gaps are well sealed, and couple it with a radiant barrier.

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