When it comes to saving energy and reducing heating bills, insulating your loft is one of the most effective steps you can take. The recommended insulation depth for optimal energy efficiency is 270mm. But why is this the magic number?

Why 270mm?

The 270mm depth comes from recommendations to maximize heat retention and reduce heat loss through the roof. This depth helps keep your home warmer during the colder months by reducing the amount of heat that escapes, ensuring your home stays comfortable while using less energy to heat. A well-insulated loft can save up to £250 per year on energy bills, making it a smart investment for any homeowner [1].

The Easiest & Most Cost-Effective Way to Install Loft Insulation

1. Remove Old Insulation: If your loft already has some insulation, it’s important to remove any old or damaged material. This ensures the new insulation will work effectively.
2. Add a New Layer: To reach the 270mm depth, consider adding a second layer of insulation, laid at a 90-degree angle to the first. This cross-laying method ensures no gaps and maximizes coverage [2].
3. Install a Raised Floor: After laying the insulation, we recommend installing a raised floor above it. This provides easy access to your loft space for storage without disturbing the insulation. It’s a practical solution, especially for homes with limited space.

Don’t Compress Your Insulation

When installing loft insulation, it’s crucial not to compress the material. Compressed insulation loses its effectiveness and reduces its thermal performance. Always make sure that the insulation remains fluffy and fully expanded to achieve the best energy efficiency [5].

How Much Energy Can You Save?

Proper loft insulation helps keep your home warmer during winter and cooler in summer, reducing the need for constant heating or air conditioning. With a correctly insulated loft, you can save a significant amount on your energy bills—sometimes up to 25% of total heating costs can be saved just by insulating your loft.

If your loft needs new insulation, we can help! Call us for a professional insulation replacement, and we’ll ensure that your home stays energy efficient.