top of page

What is Spray Foam?

When it comes to insulation, most people are familiar with traditional options like fibreglass or cellulose. However, spray foam insulation has quickly gained popularity due to its superior performance and versatility. At Spray Foam Australia, we offer a cutting-edge solution for improving energy efficiency and comfort in your home or commercial building. In this blog, we’ll take a closer look at what spray foam insulation is, how it works, its safety, and its benefits.


Understanding Spray Foam Insulation

Spray foam insulation is a modern and highly effective way to insulate your home or business. Unlike traditional insulation materials, spray foam serves as both a thermal barrier and an air barrier, creating an airtight seal that enhances energy efficiency.


There are two primary types of spray foam: open-cell and closed-cell. Open-cell foam is softer and more flexible, where soundproofing and insulation are required. Closed-cell foam, on the other hand, is denser and provides additional benefits, including moisture resistance. The closed-cell spray foam is particularly effective in areas prone to dampness, such as basements and crawlspaces, as it acts as a moisture barrier as well as an air and thermal barrier.


How Spray Foam Insulation Works

Spray foam insulation is made from a combination of two key ingredients: isocyanate and polyol. When mixed together with specific catalysts and blowing agents, they react chemically and expand to form a foam. This foam then hardens into a solid layer of insulation. The expanding nature of spray foam allows it to fill cracks, gaps, and voids, which is essential for creating a continuous barrier that traditional insulation types can’t match.


The result is an insulation system that not only keeps your home warmer in the winter and cooler in the summer but also helps reduce air leaks, which is a major contributor to energy loss in older homes.


Spray foam is made from a combination of isocyanate and polyol, both of which are carefully controlled in the manufacturing process to ensure safe and effective performance. When these two components are mixed in the right proportions, they react chemically, creating a foam that expands rapidly to fill cavities and hardens into a solid insulating layer. This reaction is carefully monitored during the spraying process to ensure optimal coverage and efficiency.


1. Energy Efficiency

Spray foam is one of the most energy-efficient insulation materials available today. By forming an airtight seal around your home or business, it prevents heat from escaping during winter and entering during summer. This reduces your need for heating and cooling, lowering your energy bills and reducing your carbon footprint.

2. Moisture Resistance

Closed-cell spray foam is particularly beneficial in areas prone to moisture. It not only provides an excellent air seal but also resists water vapour, helping to prevent mould growth and moisture damage in your home or business.

3. Long-lasting Performance

Unlike traditional insulation that can sag, compress, or settle over time, spray foam insulation maintains its integrity for many years. It will continue to perform effectively without the need for replacement or frequent maintenance.

4. Soundproofing

Spray foam insulation can also contribute to better acoustics in your home or office. Its ability to fill gaps and cracks helps reduce sound transmission, making it a great option for reducing noise between rooms or from external sources.


Yes, spray foam insulation is safe. However, during the installation process, there are certain precautions to take. Off-gassing is the term used to describe the release of fumes as the foam cures. These fumes can sometimes cause irritation or sensitivity in individuals with respiratory conditions. For this reason, we recommend that occupants vacate the property once the spraying has begun and remain away for 12-24 hours after the process is complete.


Once the foam has fully off-gassed and cured, it is entirely safe to occupy the space. After this period, your home or building will be perfectly safe, and you can enjoy the many benefits of your new insulation.


Why Choose Spray Foam Australia?

At Spray Foam Australia, we are committed to providing the highest quality spray foam insulation for homes and businesses across the country. Our team of experts ensures that each installation is carried out safely and effectively, maximising the benefits of spray foam for your property. Whether you’re looking to improve energy efficiency, reduce moisture, or create a more comfortable living space, spray foam insulation is an investment that pays off in the long run.


Spray foam insulation is a highly effective solution for both insulation and air sealing. It forms a continuous barrier that keeps your home comfortable year-round, while also providing energy savings and moisture protection. While the installation process requires some care and safety precautions, the results are well worth it. At Spray Foam Australia, we pride ourselves on delivering top-quality service and products to help you achieve a more energy-efficient and comfortable home.


If you’re ready to upgrade your insulation, get in touch with us today and discover the benefits of spray foam insulation for your property!




bottom of page