Which Types of Attic Insulation is Best UK?

Which Types of Attic Insulation is Best UK

When you’re looking to have some work done to your home, it’s in your best interest to make sure you know all about what’s going on. If you have some idea of how attic insulation works, then you can make an informed decision on what insulation you need. It’s especially important to make sure you’re getting your money’s worth, as attic insulation costs can vary in the UK and there are a few things that are involved in the pricing. It’s also worth considering that different kinds of insulation require different methods of installation, and it’s going to depend on the type of attic you have when determining which insulation solution is best.

How it’s done

f you’re looking to have your attic insulated, you might need to rely on a few different methods – especially if you’re looking to do it yourself. Typically, the method you need will depend on how difficult it is to reach all the different spots in your attic. All are viable loft insulation cost UK, but you’ll want the one that’s easiest and most effective for your attic. Please also take into account that the majority of people who try to do insulation themselves, without the help of a professional often have to pay more reinsulating their property, as insulation needs to be done properly, that’s why we advise you to hire professionals who will do the job the correct way the first time around.


One of the common types of installation methods is loose fill. It involves having a machine to “blow” in your insulation material, which in this case will be fiberglass. If you’re looking to install this yourself, you might have trouble with getting a machine – and it’s probably better you had someone to do it for you later. If your attic has a lot of gaps and smaller openings where you would want insulation to go, loose-fill or blown-in insulation is a good option for you – as it’s going to get in all the gaps without much of an issue. Problems however include that this spray foam insulation cost UK easily becomes loosened, you need protective gear to install it, its R-Value decreases over time, and it can be a risk to the structure of a property as well as ineffective as it absorbs water


Spray foam is a fantastic solution for homeowners. The insulation is a kind of foam kept in a can, and when an installer sprays it into a gap, it will expand and harden. Spray foam is completely water-blown and contains no harmful blowing agents or chemicals. This is great for it being environmentally friendly.  In addition, it can save you up to 50% on your energy costs due to reducing air leakage which causes energy loss and as a result increases your energy bills. Finally, spray foam has fantastic insulation value. Unlike other insulations foam maintains its shape and is a fantastic air seal, preventing heat loss. Spray foam insulation cost also has an amazing U-Value. Negatives are that it is not a great option in terms of DIY.

Insulation batts

Insulation batts are a pretty common way to insulate ceilings and attics and have been used in many, many houses. They’re flexible sheets that will come rolled up within their packaging, making it easier to store without taking up too much loft space. This method is effective, but it will be more difficult to install than the spray and the loose-fill insulation, but you need to make sure you have ceiling joists to house the batts themselves – and a way to hold them in place! The problems are they don’t always cover the whole area which can lead to moisture and dampness issues.

Cellulose insulation

If you’re looking for something that goes beneath the flooring to keep your attic insulated, you might consider cellulose. It’s a ground-up paper that’s been recycled and mixed with a type of acid – which helps to keep insects away and provides some fire resistance. It will mean you’re able to use your attic without any intrusion from the insulation, but it’s the floor part that will be insulated, and not the ceiling.

This method can create a lot of dust, which is something you should beware of if you choose to install it yourself; or else you will be dealing with a lot of the cleanup. In addition, cellulose insulation absorbs moisture, which reduces long-term efficiency & it can cause the insulation to rot.

The materials used

Not all insulation methods are going to use the same materials, and some are going to be more effective than others in certain applications. With that said, the more effective option for your home will depend on what you have available, what’s reachable, and whether you’re looking to apply the insulation on your own.


In general, fiberglass is almost the default when it comes to insulation materials, its flexibility and low cost to make has led it to be one of if not the most common material. It’s light and easy to handle, which makes it one of the best options for insulating your attic roof. It’s also worth considering that it’s fire-resistant, so you don’t have to worry about using this lightweight material cautiously.

If you live in a humid area with lots of bugs, this material is generally a good choice for you – though not the easiest to install if you’re looking to do it yourself. However, there are coverage issues and issues with mould.


Foam insulation is only used in one of the insulation methods, and that’s spray-in. You’re not going to find it anywhere else, but it’s a very effective way to ensure that you’re insulating and filling every gap that there is and it’s a fantastic insulation material.


Yet another versatile material you can use to insulate, this one is noted as one of the better options for those who want to make sure the materials are eco-friendly. Cellulose will likely be made of either recycled paper or wood and is finely chopped into small pieces making it easy to blow into the smaller gaps. Thanks to the added acid to keep it together, you don’t have to worry about it being a fire hazard or a target of insects however it may rot over time.

Mineral wool

Mineral wool, just like fiberglass, is used in making insulation batts. Thanks to its flexibility, it’s easy to install in your attic roof, and will bring your home several benefits. It consists of melted stone, and other recycled minerals, making it a great choice for those concerned about both fire and moisture. This is an effective method to insulate your attic roof, but you’re going to be paying a little more for the amount you need. It’s also not as easy to install as things like spray foam insulation, but still possible if you have some experienced hands at your service. We’d however suggest that spray foam is a better option for most properties.

We would have to conclude that spray foam is the best insulation solution for the majority of properties, but it really depends on what you wish to gain from your insulation. We hope you’ve found this information valuable.

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