Skip to main content


Loft Insulation

9 Results

Proper loft insulation is one of the easiest ways to make your home more energy efficient, as it can drastically reduce how much heat is lost through your roof. If you use your loft for storage, you can continue to do so by installing loft boards over the top of your insulation. This way, you can still maximise your space while keeping your home snug and your energy bills down with loft insulation.

Frequently Asked Questions

Loft insulation helps to keep your home snug, reduces heat loss and improved your energy efficiency as your heating won't have to work so hard to keep your space warm. With the addition of raised loft boarding, you can still use your loft as a handy storage space. In fact, even stylish loft conversions can benefit from clever insulation.

How much does it cost to replace loft insulation?

Though you will have to spend a little money to replace your loft insulation, it is actually a very sensible financial decision. In the long term, you may save more money as a result as your heating bills can be reduced by better-insulating your home. These energy saving tips are full of more ways to help you save money and the planet by making a few simple changes around the house. 

If you need some help choosing the best loft insulation for you, have a read of our loft insulation buying guide.

Should I remove old loft insulation before laying new?

When it comes to loft insulation, the more of it the better! This means that, unless your old insulation is in poor condition, you can lay new insulation material on top of it. To maximise the benefits, it's recommended that loft insulation should be at least 270mm thick.

Do I need to insulate my loft?

The short answer is yes! Every home can benefit from loft insulation. Even if you only use your loft for storage, installing proper loft flooring and loft panels on top of your insulation will make it far easier – and safer – to move your belongings up and down. If you’re looking for a multi-purpose and flexible option, our Knauf Earthwool Omnifit Slabs have a high level of thermal performance and have been specifically designed for installation by friction fitting.

Easy to install, ThermaQuilt and ThermaWrap are a great lightweight solutions that can be installed quickly. Resilient and non-combustible, our selection of Earthwool Loft Rolls work well as a top up layer or between ceiling joists, and are an ideal flexible option. If you are set on turning it into an extra bedroom or home office, take a look at these sleek loft conversion ideas.

Where not to put loft insulation

Insulation material can be installed on most places. However, avoid fitting it underneath your water tank and the surrounding pipes as this can cause them to freeze in really cold weather by preventing heat from below from reaching them. Read our guide on how to insulate your loft for more installation advice.