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Loft Insulation

Sheep Wool

Sheep Wool Loft

Insulation Installers

Woven to last a lifetime, lambswool is moisture absorbent, hygienic to install, and locally sourced from British farms.

Sheep Wool

Many sectors have high demand for sustainable alternative products to the standard offerings, ours being no exception. We are all becoming more aware of our impact on the planet, so we aim to provide the most eco-friendly products available. Sheep Wool stands out as being made entirely of organic material, while also having a number of unique consumer benefits for good measure.

If your property was built before 1920, chances are high that sheep wool insulation will be best suited to it. Feel free to contact our sheep wool loft insulation installers today to find out more.

  • Hygroscopic (able to absorb moisture)
  • 100% organic (with minor chemical disinfectants applied)
  • Lasts a lifetime
  • Safe to handle
  • Ideal for older properties
  • Locally sourced from British sheep
  • Non-flammable
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Can Sheep Wool Really Insulate a Loft?

Thanks to the naturally crimped structure of their woolly coat, sheep have long been able to casually withstand freezing temperatures in the wild. We hope to bring this natural insulation matter into your home so that you can feel the same benefits! The sheep wool insulation product we use – simply branded as ‘Sheep Wool’ – is made to last a lifetime or longer and is durable enough to withstand the effects of natural degradation. Despite being biological material, it does not attract vermin, nor does it burn when overheated. 

Around nine million homes, roughly a third of the 26 million total in the UK, were built before 1920, many of which certainly suffer from inadequate insulation. Older properties, particularly ones ancient enough to be listed by organisations like the National Trust, are simply not built for modern insulation products – so a “one size fits all” approach cannot be applied to them when they all have unique needs to be met.

Perfect for Older, Timber Framed Houses

Sheep wool is versatile enough to be fitted inside homes that completely lack modern infrastructure like treated timber framing, trussed roofing, and central heating systems. Our installers fit the wool cladding between the joists and cavities, with ventilation points wherever necessary. Of course, newer properties can also be fitted with natural wool loft insulation, depending on how they are structured. Call us today and we can assess the suitability of your property for this type of organic insulation!

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Benefits of Organic Lamb Wool Loft Insulation

Going organic with your loft insulation has many benefits! We glowingly endorse it for older homes. Keep reading to learn about the hygroscopic traits of sheep wool and much more.

Fully Hygroscopic Insulation

By far the biggest selling point of lambswool insulation is its ability to absorb an impressive amount of moisture. Sheep wool can hold several times its weight in water content without losing any of its heat-absorbing properties. It can do this in any weather conditions, even when there is no wind. As a result of these lower moisture levels, there will be less risk of mould growth on wooden structures.

High Longevity

Once installed, sheep wool loft insulation lasts a lifetime – maybe several! Sheep wool is durable enough to maintain its shape and functionality without degradation. Still, it’s worth checking up on it every 60 years or so. It might be best to leave a few fridge magnet reminders for the grandkids…

Best Insulation for Older Homes

Appropriate for the most historic insulation material supplied by our installation team, sheep wool is best suited for older properties built before 1920. These older properties need an insulation material that can keep water vapour away from their untreated timbers, which is definitely one of the strengths of sheep wool! Call us to find out more.

Save on Your Energy Bills

As with all of our sustainable loft insulation rolls, sheep wool insulation installation can grant you a huge relief on your energy bills when properly installed, giving you a consistently great return on investment!

Lower Humidity Throughout Your Home

Thanks to its hygroscopic traits, sheep wool can passively absorb any water vapour, leaving your home less humid during hotter days and greatly improving your quality of life. You can get rid of the electric dehumidifier once sheep wool insulation is installed.

Clean to Install

When ordering sheep wool insulation to be fitted in your loft, you will not have to concern yourself with how much mess will be left behind. Sheep wool is clean and hygienic to install, and if the removal and replacement of previous insulation produces any debris, our team can dutifully tidy up after themselves.

Extend Your Boiler’s Lifespan

Just as sheep wool has an extended lifespan, it can in turn extend the lifespan of your boiler and other heating systems. Many heating systems installed in older properties are not properly optimised – which is only natural as these houses were never built with these systems in mind – so effective wool insulation can give these systems a well-earned rest.

Reduce Mould and Condensation

Humidity and moisture in the air can cause condensation; the wetness you see around bathroom windows after you’ve had a hot shower. Mould grows as a result of excessive condensation build-up in certain areas of a house, namely windows, corners, partitions, bathrooms, and more.

Increase Home Comfort

Perhaps most importantly, sheep wool insulation will help to regulate the temperature throughout your home, keeping as much heat as possible inside it during the cold weather, on top of reducing humidity, condensation and mould growth.

Low Flammability

Sheep’s wool does not burn upon contact with an incendiary heat source – it harmlessly singes. Once more, the crimped structure of the wool saves the day, as the thousands of air pockets lining its surface naturally muffle the flame until it is extinguished.

Renewable Resource

Sheep wool is an almost infinitely renewable natural resource – so long as sheep need shearing, there will always be insulation and other useful goods to be made from it! Moreover, the free-range livestock sourced for the insulation products we use are 100% British.

Which? Trusted Trader Installation Standards

Our team of insulation installation experts have been approved by a number of organisations. Having worked hard to gain these accreditations, they are all proud to offer a consistently excellent service.

lifetime guarantee

Our Lifetime Insulation Guarantee

RJ Insulation’s eco-friendly and sustainable products all come with a lifetime guarantee. The lifetime is against the building itself, so as long as your home stands, your SupaSoft, SuperFOIL or Sheeps Wool insulation will be covered by our guarantee. Additionally, we offer a warranty backed by insurance from the IWA for a period of 5 years.

Sheep Wool Insulation Explained

As you can see in this close-up diagram, lambswool has an unusual structure for an organic fibre. Partly due to its high protein content, the wool fleece has thousands of tiny folds full of air, which creates a thick layer of insulation. With a large amount of air trapped cushioned within these pockets, it becomes more difficult for heat to diffuse across the wool. These air bubbles are also the reason why wool is excellent at protecting against damage from both water and fire.

Accredited Sheep Wool Insulation Installers

You may be wondering if our service is truly trustworthy. To assuage any concerns, several organisations have glowingly approved our service. RJ Insulation is Which? and Trusted Trader Approved.

In short, you can trust us for your insulation installation needs. Our friendly team always encourage you to make the most informed decisions about your preferred insulation through our online questionnaire.

Full list of organisations that we are members of, or have been approved by:

  • Which?
  • National Insulation Association 
  • Trading Standards
  • IWA Deposit and Guarantee Protection

Customer Testimonials

Both our previous customers and the accreditors at Which? have given us glowing feedback! We are very grateful to have been given so many well-earned 5-star reviews.

Whole process very professional from start to finish, took time to explain options and didn’t feel pressured into anything.

JJ
Joanna Janus

RJ Insulations Customer

From the initial call to the completion of the job, it’s been a pleasure to deal with RJ Insulation. After the survey, we were given a quote almost straight away but no hard sell or pressure attached to it. The date for installation was agreed. Two lovely guys turned up to fit the foil in the loft, both were very polite and courteous at all times. Dust sheets were put down and they hoovered up at the end of the job both days. I would recommend this company to anyone who’s thinking of having new loft insulation put in. You won’t get better than this, genuine people that take pride in what they do, a rare commodity these days.

C
Clarke

RJ Insulations Customer

R&J completed a loft conversion project for me in September 2021. From pre-sale to implementation, the experience of doing business with them was exemplary. Ron led us through a thorough, inclusive design process, where he and Max offered polite suggestions based on their experience, but always ensured we were getting exactly what we wanted. The statement of work and price breakdown were crystal clear, and they stayed in constant communication until the job was complete. Max and the rest of the install team carried out extremely high quality work, with great care and consideration, and the end result was absolutely perfect. It is clear that the whole team takes pride in the quality of the outcome they deliver, and it was an absolute pleasure to use their service. I would highly recommend R&J to anyone considering any kind of loft conversion work, they will not let you down.

B
Barnes

RJ Insulations Customer

Cannot fault the team at all. From start to end, nothing but amazing service. From quotation to updates on installation from Ron and Ross. To Max and his team turning up to carrying out the work. Treated our home like theirs. Friendly, polite and great workmanship all the way. We are so pleased with the results. Highly recommended the team.

S
Stockbridge

RJ Insulations Customer

We recently moved to a new property with a walk in loft plus a shallow loft at the apex of the house. The walk in loft was very draughty especially in windy weather. We could also hear every word spoken in the loft clearly in the kitchen/rooms below. We thought the SuperFOIL product would be perfect, as we’d read that many mortgage companies will not give a mortgage on foam products fitted between the joists making the property hard to sell. We contacted R J Insulations and were impressed with their Surveyors (initial quote and follow up prior to installation) and with the communication from the sales office. The installation team (3 guys) were brilliant. So organised. They prepared our house with sheeting to cover walkways, were informative about every stage of the installation and were so polite. The installation took 2 days. We had SuperFOIL on the joists in the walk in loft and SupaSoft between the rafters and also SupaSoft between the rafters in the apex loft space. The first thing we noticed was the reduction in noise – the SupaSoft

W
Weston

RJ Insulations Customer

From the initial call to the completion of the job, it’s been a pleasure to deal with RJ Insulation. After the survey, we were given a quote almost straight away but no hard sell or pressure attached to it. The date for installation was agreed. Two lovely guys turned up to fit the foil in the loft, both were very polite and courteous at all times. Dust sheets were put down and they hoovered up at the end of the job both days. I would recommend this company to anyone who’s thinking of having new loft insulation put in. You won’t get better than this, genuine people that take pride in what they do, a rare commodity these days.

C
Clarke

RJ Insulations Customer

Contact RJ Insulation

Ready to book a consultation or start your insulation project? Fill in the contact form and a member of our team will get back to you straight away. We do not participate in Home Energy Grants Scotland.

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    FAQs

    Sheep Wool Insulation Installation FAQs

    Sheep wool loft insulation can last for 60 years. When kept in decent condition, it can last even longer. This lifetime guarantee of sheep wool makes it very appealing, especially for owners of trust-protected properties, as it’s one less piece of expensive maintenance to worry about. On top of that, sheep wool is extremely durable, being resistant to water, fire and vermin, so it’s unlikely to sustain damage for the whole duration of its installation in your attic. 

    To start your sheep wool insulation installation journey, contact our team of experts today. We’ll happily evaluate your historic property’s unique needs.

    Many thousands of years ago, humans first noticed the insulating properties of sheep wool and refined it through selective breeding to produce the finest woollen textiles for our own use. Before they were domesticated for wool, wild sheep were originally more hairy than woolly – now, they produce so much that they need regular shearing at all times of the year to prevent them from overheating. 

    As homes have gradually grown harder to maintain, it is only natural that we have turned back to the humble sheep to provide warmth for them. The company that provides the sheep wool insulation we use – aptly named Sheep Wool Insulation Ltd. – was formed in 2002 and patented their titular product at the same time.

    Yes, of course; sheep wool is one of the great natural insulators, used by humans for millennia. On top of insulating sheep from cold weather out in the fields, we have been using it for our clothes, our fabrics and more because we recognise how great it is at keeping us warm as well. 

    But what makes sheep wool such a great insulator? Its secret lies in its crimped texture. This unique element fills wool fibre with thousands of tiny air pockets – significantly slowing the transfer of heat. On top of this, this natural material is excellent at absorbing water –  fighting condensation and dampness without losing any of its other beneficial properties.

    All sheep wool insulation starts its journey in nature. First, the wool is harvested from local British sheep. The expertly selected wool is then packaged into bales, each labelled to describe the colour, texture, the breed of sheep it came from, etc., before being sent for processing. 

    Once the bales arrive in the Sheep Wool Insulated factory, the wool is sorted, blended, cleaned, and eventually woven into thin layers of textile fabric. These thin fabric sheets are carefully stacked on top of each other to create a thick layer of insulating fibre, before being packaged and sent to loft-owners across the nation.

    The thickness of wool insulation might make it appear difficult to shape, but cutting it is actually quite straightforward. Almost any sharp implement should work since sheep wool is soft enough to be safely torn apart barehanded, though we highly recommend a scallop-edged knife or a purpose-built insulation saw for a more accurate cut. The ideal method of cutting insulation is to first roll it up as tightly as possible, which produces a cleaner cut in a fraction of the time.

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    Other Eco-Friendly Loft Insulation Products We Use

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    Hemp

    Call our accredited hemp loft insulation installers and discover its sustainability and breathability. Transform your loft space today.

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    Multifoil

    For properties built after the 1920s, foil is the next step in the evolution of thermal loft insulation! Foil has additional heat reflective properties that make it ideal for regulating temperature inside a home during hotter days.

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