Home DecorAll You Need to Know About Foilboard Insulation

All You Need to Know About Foilboard Insulation


Foilboard insulation can be installed in several ways. It is typically attached to the roof, walls, and floor of a building, but it may also be used to line a window in walls, attics, roofs, and even crawl spaces to provide superior energy efficiency and comfort. In this article, you will learn more about foilboard and its benefits for your next project.

What Is Foilboard Insulation?

Foilboard is a type of reflective insulation that is made up of multiple layers of aluminium foil and other materials. It provides a thermal barrier that helps reduce heat transfer between the interior and exterior of a building and helps reduce energy costs. The aluminium foil also acts as a radiant barrier, reflecting heat away from the structure and keeping it cooler during the hot summer months. Underslab insulation can be used in both residential and commercial applications, making it an ideal choice for energy efficiency. It is also an environmentally friendly option since it does not contain any harmful chemicals or pollutants.

It is also highly effective at reflecting radiant heat, which makes it an ideal choice for climates with extreme temperatures. Foilboard can be used in walls, attics, roofs, and even crawl spaces to provide superior energy efficiency and comfort. The most common way to install this type of insulation is by inserting aluminium foil into the wall cavities between studs and then filling them with drywall, mudding, fibreglass, or other materials that make up the wall cavity.

Advantages of Foilboard Insulation

Foilboard is a flexible, sustainable insulation material that has been gaining popularity in recent years. It offers many advantages over traditional insulation materials, such as improved energy efficiency and cost savings. Additional advantages are listed below.

  1. Flexibility 

The flexible nature of foilboard insulation allows for many different applications. It can be used for flooring, walls, ceilings, and roofs, as well as in any other place that requires insulation. This high degree of flexibility makes it a cost-effective solution because it can easily be applied over a large surface area.

  1. Sustainability 

Foilboard insulation is manufactured using recycled materials, which makes it eco-friendly. This eliminates the need for new manufacturing processes that produce pollution and waste material, especially since there is no requirement to reuse the material after installation.

  1. Cost-Effective

Foilboard insulation is made of two layers of high-quality aluminium foil that are glued together with a special glue to form a continuous, strong, and waterproof seal. As a result, it is more cost-effective to use than other underslab insulation materials on the market today.

  1. Long-Lasting

It doesn’t deteriorate over time from compacting, disintegrating, or collecting moisture like conventional underslab insulation does.

  1. Moisture Resistant 

It can also be used as a vapour barrier due to its high level of moisture and water resistance. And also, it is considerably easier to work with and fit because it is thin, reasonably lightweight, and much less bulky than other forms.

Disadvantages of Foilboard Insulation 

There are always advantages and disadvantages to using any product. Here are some disadvantages of using foilboard.

  1. It is often more costly compared to other underslab insulation because it is a steel product.
  2. Although it performs well in warmer environments, it must be used in conjunction with other forms of insulation in cooler regions. This will reduce convectional heat loss in cold temperatures.
  3. Foilboard may eventually wind up becoming an electrical danger in the event of a wiring error. As a metal, it conducts electricity.
  4. Additionally, it needs to be kept clean at all times, including during the installation of underslab insulation and use. This suggests that in some circumstances, like on roofs, it could need to be cleaned periodically.

How to Maintain Your Foilboard Insulation

Foilboard is becoming increasingly popular in homes and businesses due to its ability to reduce energy costs and provide a comfortable environment. But, like any other insulation material, it requires regular maintenance to ensure it is working efficiently. Here are the steps you need to take to maintain your foilboard. 

Step 1: Vacuum

Take the time to vacuum your foilboard regularly. This will remove any dust accumulation that can cause a decrease in effectiveness. It is important to do this on a regular basis, especially if you have pets that might shed their fur or move around frequently in an area that uses foilboard insulation. It should be cleaned at least once a month for maximum efficiency and effectiveness.

Step 2: Dryer Sheets

If you have pets that shed, it is important to use dryer sheets on your foilboard insulation periodically. This will help to remove any of the fur or dander that might be left behind on the board.

Step 3: Create a Dry Environment

It is important to maintain a dry environment. This includes keeping the area around your foilboard insulation away from moisture and water sources. If there is water that does manage to get on the board, it should be removed immediately.


Foilboard is a great way to keep your home warm and comfortable. It is available in a variety of types, from insulated aluminium sheeting for walls to foil-backed insulation board. Each type has its own advantages and disadvantages, so it’s important to understand the differences before deciding which one is best for your home. Additionally, installing foilboard insulation is a great way to maximise energy efficiency in your home. Foilboard insulation is easy to install, cost-effective and can help you save money on your energy bills.

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