Loft insulation is an essential part of home insulation that aims to reduce heat loss through the roof space. By keeping cold air outside and heating energy inside, it serves as an effective barrier for preventing cold air from entering a living space. By properly insulating your loft, you can keep your home warmer, reduce energy bills and decrease your carbon footprint. However, with so many types of insulation available in the market, choosing the right one can be a daunting task. In this article, we’ll take a closer look at the different types of loft insulation, their advantages, and what factors you need to consider before deciding which insulation product is right for your home.

Benefits of Loft Insulation

Loft insulation offers numerous benefits that make it a smart investment for homeowners looking to reduce their energy bills and lower their carbon footprint. Installing loft insulation will enhance your home’s thermal performance, keep it warm in the winter and cool in the summer, and reduce condensation and outside noise.

Depending on your home type and how much you spend on insulation, loft insulation can lead to significant energy savings as well. A well-insulated loft could save you several hundred pounds in heating costs each year. With up to 25% of heat loss occurring through an uninsulated roof, loft insulation should be at the forefront of any energy saving measures. (Stats via Energy Savings Trust)

Moreover, loft insulation is a long-lasting solution that can remain effective for up to 40 years or more. Hence, it is a wise investment that will offer environmental benefits and cost savings for many years to come.

In addition to financial savings, loft insulation can help reduce carbon emissions. By preventing heat loss caused by insufficient insulation, homeowners can reduce their overall carbon footprint.

If you want to reap these benefits, you should hire a professional installer who can help you decide what type of insulation is best for your home and provide a quote for installation. A professional contractor can install blanket or loose-fill insulation, sheet insulation, or rigid insulation boards using protective clothing and equipment.

By investing in loft insulation, you can achieve greater energy efficiency, reduce your carbon footprint, and enjoy additional benefits such as noise reduction and increased comfort.

Types of Loft Insulation

You may want to consider loft insulation if you are looking for ways to maintain a warm and energy-efficient home. However, with so many types of insulation materials and installation methods available, choosing the right one can be a daunting task. To help you determine what type of loft insulation is most suitable for your home, this article examines some common types, their benefits, and their drawbacks.

Loose-Fill Insulation

Loose-Fill Insulation

Loose-fill insulation is a type of insulation material that is composed of lightweight materials, such as cork granules, cellulose fibre, mineral wool, or recycled newspaper

Loose-fill insulation is a type of insulation material that is composed of lightweight materials, such as cork granules, cellulose fibre, mineral wool, or recycled newspaper. The primary use of this material is to layer it on top of existing insulation to increase its performance. However, it may not be very secure, and it can be a messy job to install.

Other options for loose-fill insulation include blown mineral wool fibre, treated cellulose, and polyurethane foam. However, it’s important to note that these options require specialist installation and can be expensive.

One of the main benefits of loose-fill insulation is that it can reach hard-to-reach places inside the loft where other types of insulation may not be effective.
If you choose to use loose-fill insulation, it’s important to take proper protective measures and wear the appropriate clothing during installation to avoid any potential health risks.

Overall, while loose-fill insulation can be a cost-effective option, it’s essential to consider your options carefully and seek the advice of a professional installer to ensure the best possible outcome for your home’s energy efficiency and comfort.

Mineral Wool Insulation

Did you know that Mineral Wool insulation is available? It’s one of the most popular types of insulation used for loft spaces. It’s lightweight and inexpensive, making it a great option for those on a budget.

Mineral Wool Insulation

Mineral Wool insulation is made from volcanic rock or glass that has been heated and spun into thin fibres, which makes it an excellent thermal and acoustic insulator.

Mineral Wool insulation is made from volcanic rock or glass that has been heated and spun into thin fibres, which makes it an excellent thermal and acoustic insulator. The material is also fire-resistant, which is another important aspect when it comes to loft insulation for example.

The disadvantage of Mineral Wool insulation is it can be compressed, making it difficult to fit into tight spaces. It can also be a bit of an irritant if inhaled, so it’s essential to wear protective clothing when handling it.

Fortunately, Mineral Wool insulation is versatile because it comes in a variety of forms, including blanket insulation and flooring rolls. Because of this, it can easily fit between flooring joists and fill any gaps that previous insulation types may have missed.

In general, Mineral Wool insulation has more advantages than disadvantages. It’s an inexpensive, lightweight, and fire-resistant insulation material that is perfect for reducing thermal and acoustic loss. Be sure to wear protective gear and take proper safety precautions before handling it.

Rigid Insulation Boards

Rigid Insulation Boards are a type of insulation material that is made of a hard foam board. The thermal properties of these insulation types are among the best on the market, making them a smart choice for loft insulation.

Rigid Insulation Boards

Rigid Insulation Boards are a type of insulation material that is made of a hard foam board.

Compared to other types of insulation, Rigid Insulation Boards have some notable advantages. The boards can be easily cut to size and are easily installed between rafters and joists, so you don’t have to hire an insulation professional. Additionally, they don’t compress over time, which means they’ll maintain their insulation properties for years to come.

Rigid Insulation Boards come in a variety of sizes and thicknesses. Common sizes include 4×8 feet, 4×4 feet, and 2×8 feet. Thicknesses typically range from 1/2 inch to 4 inches.

To install Rigid Insulation Boards safely, you’ll want to follow a few simple tips. First, be sure to wear protective clothing such as long sleeves and gloves. Then, use a sharp utility knife to cut the boards to size. Start by measuring the area where you want to install the board, then mark the board with your measurements before cutting. Once you’ve cut the board to size, simply fit it snugly between the rafters or joists.

Overall, Rigid Insulation Boards are an excellent choice for homeowners looking to insulate their loft. Not only do they offer excellent thermal values, but they’re easy to install and will last for years to come.

Blanket Loft Insulation

One of the most common types of loft insulation is blanket insulation. Blanket insulation is particularly suitable for between joists, under-floor insulation and above the rafters of the loft.

Blanket Loft Insulation

Blanket insulation is particularly suitable for between joists, under-floor insulation and above the rafters of the loft.

Blanket insulation is the cheapest option for loft insulation, making it a popular choice. This type of insulation also comes in various materials, including rock, glass, and mineral fibre.

Foil-backed felt is another type of blanket insulation. In addition to being easy to install, lightweight, and providing additional insulation, it is also cost-effective. It’s best suited for flat roof insulation but can also be used between stud walls and rafters.

Blanket insulation is an efficient and affordable way to insulate your loft, reduce heat loss and lower your carbon footprint. Providing excellent insulation and reducing draughts, it is a great barrier to draughts. When installing a blanket insulation, you may want the minimum recommended depth to be up to 270mm, as this can help reduce your energy bills and save you money in the long run.

When it comes to choosing the best type of insulation for your loft space, blanket insulation is a practical and cost-effective option to consider.

Recycled Newspaper Insulation

Looking for an eco-friendly solution to insulate your loft? Look no further than recycled newspaper insulation! It’s an eco-friendly option made from repurposed materials. But what else makes it a great option?

Recycled Newspaper Insulation

Recycled newspaper insulation is an eco-friendly option made from repurposed materials.

First off, it’s easy to install. You can simply fill the spaces between your loft joists with loose-fill insulation or lay it on top of existing insulation as a blanket insulation. Once installed, it can minimize heat loss and reduce your energy bills.

In addition to being a great thermal insulator, recycled newspaper insulation also has excellent absorptive properties, which means it can effectively reduce sound transmission and provide great sound insulation.

Remember to protect yourself from cellulose fibre irritation by wearing protective clothing and equipment during installation. But once it’s in place, you’ll enjoy the benefits of an affordable, efficient and eco-friendly insulation option. So, if you’re looking to insulate your loft, consider using recycled newspaper insulation as a blanket insulation for a greener and healthier home.

Choosing the Right Type of Loft Insulation

When it comes to loft insulation, there are many types to choose from. As each type has its own unique benefits and drawbacks, it is important to consider your particular needs and requirements before selecting the right one for your home based on its benefits and drawbacks. From loose-fill insulation to blanket insulation, spray foam insulation to mineral wool, there are many options to choose from.

Consider Your Home’s Needs and Energy Requirements

It’s important to consider your home’s needs and energy demands when choosing loft insulation. The type of insulation you choose can make a substantial impact on your energy bills and carbon footprint.

Start by taking into account the size of your house and the type of heating system you have. If you have a larger home or an inefficient heating system, you’ll need to invest in more insulation to keep your home warm and your energy bills down.

Next, consider which parts of your house get the most sunlight and where the heat is currently escaping. If you have a lot of windows or areas that get a lot of direct sunlight, you may not need as much insulation in those areas. However, if you have a draughty loft or a poorly insulated space, you’ll need to invest in a high-quality material to keep the heat in.

Think about your energy efficiency goals too. If you’re looking to lower your carbon footprint, consider a natural material or a recycled insulation material. If you’re on a tight budget, look for the cheapest option that still meets your needs.

Remember, you don’t necessarily need to hire a professional contractor to install your insulation. Insulating blankets and rolls yourself is possible with the right protective equipment and clothing. Be sure to determine the minimum depth necessary for your specific space to ensure maximum efficiency.

Consider the Depth and Layer of Your Loft’s Existing Insulation

A good investment in insulation is one of the best ways to improve energy efficiency in your home. However, before you consider installing any new loft insulation, it’s important to assess the quality and depth of your current insulation.

Not only will this help to avoid wasting your money, but it can also prevent damage to the existing insulation. A home’s EPC (Energy Performance Certificate) is the best way to find out the level of insulation in your loft.

The government recommends a minimum depth of 270mm of loft insulation, but many newer homes are now installing to a depth of 300mm or more. A thicker layer of insulation not only helps to reduce your energy bills, but it also helps to prevent heat loss and keep your home warmer in the winter.

The loft must, however, be adequately ventilated; otherwise, condensation could occur, damaging your insulation. A good ventilation system prevents moisture from building up, which can lead to mould growth.

Be sure to assess your current insulation’s depth and quality before you install new loft insulation. Checking your EPC Register and ensuring adequate ventilation can save you money and prevent any potential issues.

Do you want a Cold Loft or a Warm Loft?

When considering loft insulation, one of the major decisions is whether to have a cold or warm loft. A cold loft is where the loft space is not heated, and the insulation is applied to the loft floor. A warm loft is where the loft space is heated, and the insulation is applied to the underside of the roof.

Do you want a Cold Loft or a Warm Loft?

When considering loft insulation, one of the major decisions is whether to have a cold or warm loft

The advantage of a cold loft is the insulation can be installed as a DIY project, and there is a range of insulation types available, from loose-fill insulation to insulation rolls and rigid insulation boards. However, there could be issues with temperature fluctuations, requiring additional insulation for the winter months. Also, if the loft space is not adequately ventilated, condensation could become an issue.

The advantage of a warm loft is that it does not experience temperature fluctuations or condensation. The insulation is installed in the roof space, where a professional installer is required. Spray foam insulation or mineral wool insulation may be the insulation type of choice for a warm loft. Warm lofts, however, are generally more expensive to install than cold lofts.

Choosing a cold loft or a warm loft depends on the conditions of your loft, the insulation type, the cost of installation, and whether DIY installation is possible. Make sure you take all of these factors into consideration before making your choice about what is the best option for your particular needs.

Installing Loft Insulation

Before installing any type of insulation, it is important to prepare the loft space properly. This involves clearing the area of obstacles and rubbish and ensuring the loft floor or ceiling is strong enough to support the insulation. Additionally, homeowners often ask if they should remove old loft insulation before installing new insulation or if they can put new insulation over old. We explore the answers to these questions below.

Preparation for Installation

Before installing loft insulation, it’s essential to prepare the loft space to ensure a safe and effective installation. Firstly, ensure the loft is well lit and free of damaged joists, as this may cause a collapse. You should also make sure there’s a safe, sturdy working platform to stand on while carrying out the insulation work. Crawling boards supported by at least three joists are ideal for this purpose.

It’s necessary to remove old insulation and vacuum the remaining dust before installing new insulation. You may also need to hire a professional carpenter for repairs if necessary. Once the loft is free of debris, check for proper ventilation and consider lagging pipes and water tanks with suitable insulation to prevent freezing.

To keep you safe while installing the insulation, it’s vital to wear protective clothing and equipment. A face mask and gloves are essential to avoid inhaling dust or coming into contact with any skin irritants.

Lastly, consult with a professional installer for a thorough assessment, and identify the minimum depth of insulation suitable for your roof space. With proper preparation, installing loft insulation can be a straightforward task and will provide numerous benefits, including reduced energy bills, and a minimised carbon footprint.

Should I remove old loft insulation?

If you’re wondering whether you should remove old loft insulation, the answer is — it depends. You see, insulation can last for decades if it’s in good condition. However, over time, loft insulation may become damaged, compressed or damp, rendering its insulating properties inadequate.

If your loft insulation is over 20 years old, you may want to check its condition, depth, and coverage. Also, if you’re experiencing draughts or high energy bills, it might be time to inspect the insulation. Damaged or missing insulation can cause a quarter of your home’s heat to escape through the roof.

If the existing insulation is damp, it could lead to mould growth, which could harm your health and damage your home. In this situation, you may need to remove the old insulation and rectify any underlying issues before installing fresh insulation. Similarly, if you have old vermiculite insulation, which may contain asbestos, it’s best to call in a professional to handle the hazardous dust safely.

To determine if you need to replace the insulation, you can inspect it yourself or hire an expert to do so. Checking for proper coverage, the depth of the insulation, and for any signs of damage will give you an idea of whether it needs to be replaced. If you do decide to install fresh insulation, always ensure that it’s installed to the manufacturer’s guidelines and that you have adequate protective equipment.

Can you put new insulation over old?

Wondering if it’s possible to add new insulation over old insulation in your loft? The answer is yes, but there are a few things to consider before you start.
Firstly, it’s important to note that the R-Value of the total insulation thickness must comply with the UK Building Regulations. This means that you must make sure that the new insulation added on top of the old insulation will meet the required R-Value in total.

Secondly, a vapour barrier should be in contact with the plasterboard surface to prevent moisture build-up but should not contact any insulation as this could lead to condensation issues.

Blanket insulation, such as mineral wool, and loose-fill insulation can typically be installed over existing insulation. However, if the old insulation is damp, water-stained, compressed, or contains asbestos, it should be removed before installing new insulation.

Old insulation that is damp or water-stained can lead to mould growth and cause damage to your home. A compressed insulation will not provide adequate insulation, while asbestos-containing insulation is hazardous to handle and must be handled by professionals.

By following these best practices, you can ensure that your home stays energy-efficient while keeping your living space safe and healthy.

Frequently Asked Questions

Where does the insulation go?

When it comes to insulating your loft, it’s important to know that the insulation does not just sit in the loft space. To be effective, it must be installed correctly between the floor joists and on the underside of the roof, between the rafters.

If you’re on a tight budget or only use your loft for storage, insulating just the floor joists may be sufficient. This is known as a “cold loft.” However, it’s important to note that a cold loft isn’t actually cold all year round. In fact, it can get quite hot in the summer and cold in the winter.

For a “warm loft,” you will also need to insulate the underside of the roof, to prevent any heat from escaping out of the roof. This will require a bit more work and expense, but it will significantly reduce heat loss and make your home more energy-efficient.

There are different types of insulation materials that can be used for both the cold and warm loft options. Among the most common types are mineral wool insulation, blanket insulation, and loose-fill insulation.

The insulation of your loft, whether it be your floor joists or the more comprehensive warm loft option, will provide significant energy efficiency and utility bill savings.

Can I install loft insulation by myself?

Are you wondering if you can tackle loft insulation as a DIY project? The answer is yes, a competent DIYer can do it, but with care. It is a terrific way to reduce your energy bills and carbon footprint. However, it is important to note that in some cases, a professional installer may need to be called in.

If your loft is easy to access, doesn’t have damp issues and is not a flat roof, then DIY loft insulation is suited for you. You can easily purchase insulation materials at your local hardware store.

It is important to note that the ideal depth of insulation for optimum energy efficiency is between 270mm and 300mm. So, make sure you check the current depth in your loft before adding more.

But if you have damp issues or a complex insulation system is needed, it is best to seek professional help. Remember, safety is also key when carrying out a DIY loft insulation project. Protective clothing and equipment will be required, so make sure you have them before starting.

Overall, DIY loft insulation can be a great way to improve energy efficiency and save money in the long run, if done correctly.

What maintenance is required for roof and loft insulation?

Roof and loft insulation are a fantastic way to save money on energy bills and reduce your carbon footprint. The good news is that they require little to no maintenance. However, there are a few things you can do to ensure maximum effectiveness over time.

Regular inspections are important to check for any dampness or compression in the insulation. It’s best to do this annually, particularly after a particularly wet season. If you notice any dampness or that the insulation has compressed, it’s important to fix it as soon as possible. As a result, mould will be prevented from growing on the insulation and it will perform at its best.

You may also want to consider adding additional insulation if you notice that the current insulation has become compressed. This will help maintain its effectiveness in keeping heat in during the colder months and out during the warmer months.

Generally, roof and loft insulation require little to no maintenance, but inspections are essential to ensure it’s working effectively, and dampness doesn’t damage it.

How long does attic insulation last?

When it comes to loft insulation, you want to make sure that it lasts as long as possible. The good news is that if it’s installed correctly and not damaged, then it should last you around 40 years. No matter what type of insulation you use, it will save you more money on your energy bills than it costs!

That being said, the lifespan of insulation could vary, depending on the material and other factors like usage frequency, maintenance, climate, and more. It’s essential to ensure that your attic insulation is still effective after this period. One way to do this is to inspect it regularly for any damage or compression.

Different types of insulation, such as rigid insulation boards, loft rolls, mineral wool insulation, and cellulose fibre, have different lifespans. Some natural materials, such as wool insulation, can last much longer than cheaper options. However, regardless of the choice of material, insulation needs to meet certain minimum depths to keep your home warm.

Ultimately, if you invest in high-quality insulation and maintain it, it will last you for decades. So, take care of your attic insulation, and you’ll be saving money on your energy bills for years to come!

Can I Get a Loft Insulation Grant?

Are you tired of paying hefty energy bills every month? Well, guess what? You may be eligible for a loft insulation grant through the Energy Company Obligation (ECO). Loft insulation is an effective way to reduce heat loss and cut down energy bills. Plus, you’ll be doing your bit in reducing carbon footprint.

Can I Get a Loft Insulation Grant?

To qualify for the loft insulation grant, you need to meet certain eligibility criteria, such as household income and local authority funding.

To qualify for the loft insulation grant, you need to meet certain eligibility criteria, such as household income and local authority funding. The grant is usually available for people living in certain areas or on specific benefits. You can use our Eligibility Checker form to find out if you’re eligible for the grant. Keep in mind that the criteria may vary by region or energy company.

Energy companies often provide grants to low-income families, disabled individuals, and the elderly in order to make their homes more energy efficient. Loft insulation is one of the typical focus areas for these grants. You may still qualify for the grant even if you do not fall into any of these categories.

Getting a loft insulation grant is a simple process. Firstly, check your eligibility using our free service. If you meet the criteria, you can contact an accredited loft insulation installer to get a quote. The installer will take care of the entire process, from measuring the loft to fixing the insulation. Once the installation is complete, the installer will provide you with the necessary documentation to claim the grant.

So, if you’re worried about the cost of loft insulation, a grant from the Energy Company Obligation may be the perfect solution. Don’t let a draughty loft stop you from enjoying a cosy winter. Check your eligibility today and get started on the process.


In summary, upgrading your loft insulation is a smart move that can significantly reduce your energy bills and keep your home warm. There are several types of insulation materials available, including loose-fill, sheet insulation, mineral wool, rigid insulation boards, and blanket insulation. Each type has its unique benefits, and you can choose one that suits your needs and budget.

You might want to consider applying for a grant if you have been thinking about upgrading your loft insulation but are concerned about the cost. Low-income families, disabled individuals, and elderly people can qualify for the grants. To find out if you qualify for a grant, head on over to our Eligibility Checker (big blue button in the top menu).

To ensure quality and professional workmanship, get local quotes from competent installers. This way, you’ll have the peace of mind that your loft insulation upgrade is in good hands. A professional installer will measure your loft and advise you on the best insulation material to use, ensuring you meet the minimum depth requirement.

In the long run, upgrading your loft insulation is an investment that pays for itself. You’ll save money on heating bills while reducing your carbon footprint. Plus, you’ll enjoy the added benefits of a warmer and more comfortable home.

So, if you’re looking to make your home more energy-efficient and reduce your carbon footprint, upgrading your loft insulation is an excellent place to start. Remember, government grants might be available for eligible homeowners, and local competent installers can help you get the job done right. Don’t hesitate to take the first step towards a more energy-efficient home!

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