Around a third of the heat lost in homes escapes through best cavity wall insulation(Energy Saving Trust 2023). Fortunately, cavity wall insulation can make your home more energy efficient and reduce your heating costs. But which is the best option for your home? This article discusses the different options and offers advice on how to choose the right one for you.

When deciding which type of insulation is best for your property, consider several factors. Some of these include thermal performance, moisture resistance, and fire safety. Fiberglass, mineral wool, expanded polystyrene (EPS), cellulose, and polyurethane foam insulation offer good thermal properties. However, some of these materials are not suitable for older buildings that are prone to issues such as condensation and dampness.

Expert Recommendations: Choosing the Right Cavity Wall Insulation for Maximum Efficiency

Cellulose and cellulose-based insulation have good moisture resistance properties, helping to prevent the buildup of mold within your cavity walls. They are also non-combustible, which makes them a safe choice for older properties. However, it’s important to consult with a specialist before installing this type of insulation.

Polyurethane is a plastic-derived insulation material that is sprayed as a liquid into the wall cavity. It quickly expands to fill all air gaps, ensuring that there are no cold spots in your home. It is also highly effective, reducing your energy bills by up to a third. It is worth noting, however, that this type of insulation is more expensive than other insulation options. This is especially true for the spray-applied varieties of polyurethane insulation.