Skip to main content

Fibreglass insulation is a popular type of thermal insulation that is used in many buildings and homes to keep them warm in the winter and cool in the summer. It is made from small, thin fibres of glass that are woven together to create a blanket-like material. Fiberglass insulation is then installed between the studs in walls, ceilings, and floors, as well as in attics and crawl spaces.

 How It Works?

The way that fibreglass insulation works are by trapping pockets of air within its fibres. This air is an excellent insulator, which slows down the transfer of heat between the inside and outside of a building. In the winter, fibreglass insulation helps to keep the heat generated by a heating system inside the building, while in the summer, it helps to keep the cool air from an air conditioning unit inside.

Fibreglass insulation also works to reduce sound transmission between rooms. The fibres are able to absorb sound waves, which helps to reduce noise pollution in a building.

Why is it Effective?

Fibreglass insulation is effective for a number of reasons. Firstly, it is a good insulator of heat. The air trapped within its fibres slows down the transfer of heat, which means that buildings with fibreglass insulation are better able to retain heat in the winter and stay cool in the summer.

Secondly, fibreglass insulation is resistant to moisture. Moisture can reduce the effectiveness of other types of insulation, such as cellulose insulation, but fibreglass insulation is not affected by moisture. This means that it will continue to perform well even in damp or humid environments.

Finally, fibreglass insulation is also resistant to fire. The glass fibres that makeup fibreglass insulation are non-combustible, which means that they do not burn. This makes fiberglass insulation a good choice for buildings where fire safety is a concern.


There are many benefits to using fiberglass insulation in a building. Firstly, it is an affordable option for homeowners and builders. Fiberglass insulation is generally less expensive than other types of insulation, such as spray foam insulation, and is widely available at most hardware stores and building supply centres.

Secondly, fiberglass insulation is easy to install. It can be installed by homeowners or professionals using simple tools and techniques and can be cut to fit any space.

Thirdly, fiberglass insulation is long-lasting. With proper installation and maintenance, it can last for many years without losing its effectiveness.

Finally, fiberglass insulation is environmentally friendly. It is made from recycled glass and is fully recyclable at the end of its useful life. This means that it is a sustainable choice for homeowners and builders who are looking to reduce their environmental impact.

Factors to Consider When Choosing Fiberglass Insulation

When choosing fiberglass insulation, there are several factors to consider. Firstly, it is important to choose the right R-value for the space that is being insulated. The R-value is a measure of the insulation’s ability to resist heat flow, and different spaces require different R-values to be effective.

Secondly, it is important to consider the type of fiberglass insulation. There are two main types: batts and blown-in insulation. Batts are pre-cut pieces of fiberglass insulation that are designed to fit between the studs in walls, ceilings, and floors. Blown-in insulation is a loose material that is blown into spaces using a special machine.

Finally, it is important to consider the installation process. Fiberglass insulation can be installed by homeowners or professionals, but it is important to ensure that it is installed correctly to ensure its effectiveness.


Fiberglass insulation is a cost-effective and efficient way to improve the energy efficiency and comfort of your home. By understanding how it works and the benefits that fibreglass manufacture offers, you can make an informed decision about whether it’s the right choice for your needs. Whether you’re building a new home or looking to upgrade your existing insulation, fiberglass insulation is a reliable and effective option that can help you to save money on your energy bills while keeping your home comfortable and cosy.

Leave a Reply