How To Install Wall Insulation

Are you looking to improve the energy efficiency of your home and reduce your utility bills? Installing wall insulation can be a great solution. Proper insulation helps keep your home cool in summer and warm in winter by minimising heat transfer through the walls.

In this blog, we will walk you through the process of installing wall insulation to ensure that your home remains comfortable all year round.

Start by preparing the work area. Remove any obstacles near the walls and clear the space for easy access. Cover the floor with drop cloths or plastic sheets to protect it from any debris or insulation material that may fall during the installation process.

Measure the height and width of the wall cavity where you plan to install the insulation. Using a tape measure, carefully measure the dimensions, ensuring accuracy. Transfer these measurements to the insulation material and mark the cutting lines using a straightedge.



Using a sharp utility knife, cut the insulation material along the marked lines. Remember to wear safety glasses, gloves and a dust mask while handling the insulation to protect yourself from irritation.

Now it's time to install the insulation. If you're using fibreglass batts, gently press them into the wall cavities, ensuring a snug fit. Avoid compressing the insulation material, as it reduces its effectiveness. If needed, use insulation hangers or adhesive to hold the insulation in place.



For mineral wool insulation, follow the manufacturer's instructions for installation. Mineral wool often requires specific fastening methods, so be sure to read and understand the guidelines before proceeding.

In some areas, it may be required to install a vapour barrier to prevent moisture from seeping into the walls. Check with local building codes to determine if a vapour barrier is required in your region.



If a vapour barrier is needed, attach it to the wall before installing the insulation. The vapour barrier should cover the entire wall surface, with overlapping seams sealed using tape or adhesive.

After installing the insulation, check for any gaps or areas that may require additional insulation. Fill these gaps with small pieces of insulation material, ensuring a complete and continuous barrier.

Remember, proper installation is important to achieve effective insulation. If you're unsure about any step or require assistance, it's always best to consult with a professional insulation installer.

At Kev's Fasteners & Construction Supplies, we understand the importance of a well-insulated home. Our wide range of insulation supplies can help you achieve an energy-efficient and comfortable living environment. Contact our team today to explore our products and get started on your insulation project.