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SheepWool Insulation

Pure sheepwool Insulation for Ireland and the UK

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  • Home
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    • News
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  • Buy Now
    • Sheepwool Insulation
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Trade

Trade

Premium Insulation for Trades and Specifiers

Isolena Sheep Wool Insulation is the smart choice for professionals, offering exceptional thermal performance (λ ≈ 0.033–0.038 W/mK), superior acoustic dampening, and natural moisture regulation—without compromising indoor air quality or health. Its patented Ionic Protect® ensures pest resistance without harmful chemicals, and with top-tier certifications like ETA and natureplus®, it delivers reliable performance, sustainability, and peace of mind for every specifier, developer, and architect. Best of all, it’s safe and easy to handle during installation—no dust masks or special PPE required, making it ideal for both self-installers and trade professionals alike.

Below, you’ll find specialist resources, case studies, installation guides, and technical documents designed to support your projects from start to finish.

Partner with Confidence

Have questions or want to discuss a project? Fill in the form to connect with our trade team: we’re here to help.

Ireland: 0404 46100
UK: 0371 218 5218
info@sheepwoolinsulation.ie
Sheep Wool Insulation Ltd. Unit 1, Railway Business Park, Rathdrum, Co. Wicklow. A67 Y497 Ireland


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    Product Benefits
    Installation Guides
    For Builders

    Why use sheep wool insulation?

    Isolena sheep's wool insulation is totally natural, environmentally friendly, and quick and easy to install. Here are some of the reasons why you should make sheep wool insulation a key part of your plans for a highly energy-efficient building.

    It adds value

    Sheep Wool Insulation makes sound economic sense because it immediately adds value to your development. Major international studies such as the Royal Institution of Chartered Surveyors' "Green Value" report show clear links between green buildings and their market value. Wool insulation and other eco-friendly products appeal to the growing numbers of home owners and buyers looking for green buildings with an excellent energy rating.

    It's safe

    Because the wool is natural, Sheep Wool Insulation is perfectly safe to handle. Unlike many other insulation products, you don't need special equipment or safety clothing to install it. That means a faster, hazard-free installation – and lower construction costs. Sheep Wool Insulation is quick and easy to work with, following the shape of the rafters, studs and joists for a tight fit. Sheep Wool Insulation is also ideal for refurbishments and restoration projects. You can roll it over the existing insulation instead of having to remove it. This is quicker and much safer than removing hazardous material, minimising health and safety risks on site.

    It's awardwinning

    Sheep Wool Insulation is certified as the highest performing fibrous insulation, maximising energy efficiency. We continuously monitor product quality to ensure these award-winning standards are maintained. Full testing and certification is carried out on all our products to ensure compliance with building regulations and to give you the confidence to make the best choice.

    We deliver

    We can also arrange delivery, using either our own vehicles or leading courier companies. Delivery charges are additional, but we always look for the most cost-effective delivery method. We also supply any other accessories you may need, such as cutting tools, membranes and tapes. See our online shop for more details.

    It's flexible

    Sheep Wool Insulation rolls come in a wide range of lengths and depths, and can be layered to achieve requirements. Whether it's a new development or a refurbishment, you can fit Sheep Wool Insulation anywhere – from external or internal walls, under timber or concrete floors to the attic/loft or between the rafters.

    We can help

    Need more information or assistance? We provide online advice and telephone helpline service. Read our guides to find out more.

    For Architects & Specifiers

    Why use sheep wool insulation?

    Hundreds of architects and other professionals are now specifying natural materials in their building projects, and you cannot get more natural than Isolena sheep's wool insulation. For sustainable architecture, it is the best insulation product on the market.  Think of it as nature's thermostat: it keeps a building up to 4C warmer in cool weather and up to 7C cooler in warm weather.

    For creative projects

    Sheep Wool Insulation is ideal to use in your more creative projects, particularly where your clients want to:

    • Use natural products for a green build
    • Gain the longer-term cost benefits of energy efficient materials
    • Have a higher Building Energy Rating
    • Add market value to their property

    Major international studies such as the "Green Value" report by the Royal Institution of Chartered Surveyors show clear links between green buildings and their market value.

    Eco-friendly materials

    Sheep Wool Insulation ticks all the right boxes in terms of building materials that have low embodied energy and are:

    • CFC and HCFC free
    • Non-toxic
    • From sustainable sources
    • Sourced locally

    Wool and moisture

    Wool fibres are hygroscopic, absorbing and releasing moisture without reducing thermal performance. The fibres are breathable, with a moisture weight content of up to 35%, depending on the relative humidity of the surroundings. While absorbing this moisture, the wool releases energy in the form of heat, raising the temperature of surrounding areas. In warmer weather, the process is reversed – as the wool releases this moisture, it creates a cooling effect.

    Award-winning

    Sheep Wool Insulation is certified as the highest performing fibrous insulation, maximising energy efficiency. Full testing and certification is carried out on all our products to ensure compliance with building regulations and to give you the confidence to make the best choice.

    A flexible product

    Sheep Wool Insulation is a flexible product – literally. It is quick and easy to work with, following the shape of the rafters, studs and joists for a tight fit. You can fit Sheep Wool Insulation anywhere – from external or internal walls, under timber or concrete floors to the attic/loft or between the rafters. The rolls come in a wide variety of lengths and depths, and can be supplied to tailored measurements on request. Sheep Wool Insulation is also ideal for refurbishments and restoration projects. Your team can roll it over the existing insulation instead of having to remove hazardous material.

    The latest from Sheepwool Insulation

    National Heritage Week runs from 15 to 23 August, National Heritage Week runs from 15 to 23 August, with this year's theme, Heritage at Risk, focused on exploring the built, natural and cultural heritage that needs protecting. 🐑⁠
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It is something close to our hearts, since so much of our work involves helping older buildings breathe and last for generations to come.⁠
To mark it, we are offering 5% off across our digital store for the week of 15 to 23 Aug. If you have a heritage property you have been meaning to insulate the natural way, this is a good time to start.⁠
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Shop the discount at sheepwoolinsulation.com⁠
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Pictured is the Rock of Cashel⁠
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#SheepWoolInsulation #IsolenaWool #NationalHeritageWeek #HeritageAtRisk #HeritageRenovation #NaturalInsulation #IrishHeritage #SustainableRenovation
    A 160-year-old home in Snowdonia, made warm again. A 160-year-old home in Snowdonia, made warm again. 🐑⁠
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These homeowners took on their own attic insulation as a DIY project, with zero professional joinery experience between them. The stud walls were not exactly perpendicular, but Isolena sheep's wool fit snugly regardless, forgiving enough for even a first-time install.⁠
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The room is now a second-floor bedroom with stunning mountain views, finally warm, finally cosy, and finally free of the draughts that came with the original 1860s slate roof. They chose wool because they wanted something breathable, natural, non-toxic, and genuinely suitable for novices. They are already planning the next attic room.⁠
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If you are taking on a project like this yourself, we are always happy to help. Find out more at the Link in Bio!⁠
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#SheepWoolInsulation #IsolenaWool #DIYInsulation #HeritageHome #NaturalInsulation #BreathableHome #AtticInsulation #SnowdoniaHome
    🐑 Insulating around windows and doors has never be 🐑 Insulating around windows and doors has never been easier with our sheep’s wool window & door filler.⁠
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Flexible, breathable, and simple to install, it seals gaps while allowing your home to breathe with no mess, no fuss, just instant comfort.⁠
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A quick upgrade that makes a real difference to warmth and energy efficiency. ⁠
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For more guides and information, check at the Link in Bio!⁠
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#SheepWoolInsulation #NaturalComfort #EcoHome #DIYGuide #SustainableLiving
    Happy Saturday! Your weekly dose of sheep is here, Happy Saturday! Your weekly dose of sheep is here, and this week it's all about the babies. 🐑⁠
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A newborn lamb can usually stand and walk within the first hour of being born, and within a day or two, it can already keep up with the flock.⁠
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Even more impressive, a ewe and her lamb learn to recognise each other's bleat within the first couple of days. In a field full of identical-looking sheep, a mother can pick her own lamb's call out from dozens of others, and the lamb can do the same right back.⁠
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It is one of the strongest bonds in the animal world, built entirely on sound.⁠
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Fun Sheep Facts Saturday. See you next time! 🌿⁠
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#FunSheepVideos #SheepOfInstagram #LambSeason #HappySaturday #SheepWoolInsulation #BabyAnimals #IrishFarming #CuteAnimals
    🐑 Natural Comfort, All Year Round ⁠ ⁠ Our Isolena 🐑 Natural Comfort, All Year Round ⁠
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Our Isolena Sheep Wool Insulation range is designed to keep your home cosy in winter and cool in summer by creating a natural thermal barrier that prevents unwanted heat loss or gain.⁠
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The better the insulation, the less energy you’ll need. That means lower bills, healthier homes, and a smaller footprint. ⁠
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Comfort Rolls - low-density (14 kg/m³) wool designed for attic, floor, and ceiling applications where a breathable, soft insulation is preferred. ⁠
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Optimal Rolls - a versatile medium-density (18 kg/m³) wool insulation suitable for walls, ceilings, floors and rafters, with a smooth felt backing for easier installation. ⁠
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Premium Rolls - high-density (20 kg/m³) wool insulation that’s ideal for walls and sloping rafters, delivering superior thermal and acoustic performance. ⁠
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Explore our range of the best-performing, safest, and most natural insulation products available at the Link in Bio!⁠
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#SheepWoolInsulation #ISOLENA #NaturalComfort #EcoFriendlyLiving #EnergyEfficiency #SustainableDesign #HealthyHomes⁠
    🐑 Sheep's wool is a surprisingly effective acousti 🐑 Sheep's wool is a surprisingly effective acoustic material, and the reason is in the fibre itself.⁠
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The natural crimp and porosity of Isolena sheep's wool trap and dissipate sound waves rather than bouncing them around.⁠
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It performs particularly well in the mid-to-high frequency range, exactly where speech, TV and everyday household noise sit.⁠
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Whether it's walls between rooms, floors between levels or a ceiling below a busy attic, wool absorbs what you don't want to hear.⁠
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Find out more at the Link in Bio!⁠
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#SheepWoolInsulation #SoundInsulation #AcousticComfort #NaturalInsulation #IsolenaWool #HealthyHome #EcoHome #QuieterHome
    Every roll in this warehouse has somewhere to be. Every roll in this warehouse has somewhere to be. 🐑⁠
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Some will end up in a campervan, keeping someone warm on the road. Some will go into a new home, into a heritage restoration, into an attic that's been letting heat escape for years. All of it 100% pure Isolena sheep's wool, ready and waiting.⁠
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Where will yours end up?⁠
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Browse the full range at the Link in Bio!⁠
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#SheepWoolInsulation #IsolenaWool #NaturalInsulation #Warehouse #InStock #VanLife #EcoHome #SustainableBuilding #HealthyHome
    Some projects make you stop and look. 🐑⁠ ⁠ This ti Some projects make you stop and look. 🐑⁠
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This timber frame build is enormous, and watching it come together with Isolena sheep's wool insulation throughout has been something else. ⁠
Every cavity filled, every rafter packed, all of it 100% natural wool doing exactly what it's been doing for thousands of years.⁠
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Big or small, every project deserves the same standard.⁠
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Find out more at the Link in Bio!⁠
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#SheepWoolInsulation #IsolenaWool #TimberFrame #NewBuild #NaturalInsulation #EcoHome #HealthyHome #SustainableBuilding #BigBuild
    What a day at Wells House! 🐑⁠ ⁠ Thank you to every What a day at Wells House! 🐑⁠
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Thank you to everyone who stopped by our stand at the Historic Houses of Ireland Trade Fair. So many great conversations about heritage properties, breathable insulation and how to protect old buildings the right way. It was brilliant to meet so many people thinking seriously about how to care for their homes naturally and sustainably.⁠
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If we missed you on the day, or you have questions about insulating a heritage property, get in touch by email at the Link in Bio!⁠
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#SheepWoolInsulation #IsolenaWool #WellsHouse #HistoricHousesOfIreland #HeritageRenovation #NaturalInsulation #IrishHeritage #BreathableHome
    The best time to insulate a home properly is while The best time to insulate a home properly is while it's being built. 🐑⁠
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This timber frame house is going up the right way, with Isolena sheep's wool laid between the rafters externally before anything is covered over. ⁠
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Breathable, moisture-regulating and completely natural, working quietly inside the structure for decades.⁠
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Browse the full range at Link in Bio!⁠
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#SheepWoolInsulation #IsolenaWool #NewBuild #TimberFrame #NaturalInsulation #EcoHome #SustainableBuilding #BreathableHome #HealthyHome
    Sheep's wool insulation is not just for homes. 🐑⁠ Sheep's wool insulation is not just for homes. 🐑⁠
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This pub is getting a full insulation and sound isolation refit with Isolena sheep's wool throughout. Commercial spaces benefit just as much from natural, breathable insulation, better acoustics, healthier indoor air and a material that works with the building rather than against it.⁠
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And no toxic particles floating around where people eat and drink. That matters.⁠
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Find out more at the Link in Bio!⁠
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#SheepWoolInsulation #IsolenaWool #CommercialInsulation #SoundInsulation #PubRenovation #NaturalInsulation #AcousticComfort #HealthyBuilding #EcoBuilding
    🐑 Most insulation needs chemical treatments to kee 🐑 Most insulation needs chemical treatments to keep moths and pests at bay. Isolena sheep's wool takes a completely different approach.⁠
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Ionic Protect is a biocide-free plasma-ion treatment that works at a molecular level, altering the protein structure of the wool fibre so it simply cannot be used as a food source by wool pests. ⁠
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No pesticides. No re-treatments. No chemicals at all.⁠
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It's patented, independently tested, and built to last the lifetime of the insulation.⁠
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Learn more about Ionic Protect at the Link in Bio!⁠
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#SheepWoolInsulation #IonicProtect #NaturalInsulation #ChemicalFree #IsolenaWool #EcoHome #PesticideFree #HealthyHome
    We were honoured to support the full roof renovati We were honoured to support the full roof renovation of Clonbeg Church, a beautiful Church of Ireland building dating back to 1837. 🐑⁠
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This is one of our older projects from a few years back, and it remains one we are particularly proud of. Preserving cultural heritage matters, and we are glad to have played a small part in protecting this historic space for generations to come.⁠
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Isolena sheep's wool insulation was the natural choice for a building like this, breathable, moisture regulating and completely in harmony with the original stone and timber structure.⁠
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A privilege to have been involved in a project of this significance.⁠
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If you are working on a heritage renovation and want to explore natural insulation, we would love to hear from you. ⁠
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Reach out at the Link in Bio!⁠
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#SheepWoolInsulation #IsolenaWool #ClonbegChurch #ChurchOfIreland #HeritageRenovation #NaturalInsulation #IrishHeritage #BreathableHome #HistoricBuilding #SustainableRenovation
    Last Saturday of June, and the sheep are here to s Last Saturday of June, and the sheep are here to send it off properly. 🐑⁠
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Sheep are flock animals, but not in a mindless way. Within a flock, there are leaders, personality types, social hierarchies and individual characters. Some are bold, some cautious, some are the ones always at the front, some always at the back.⁠
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Watch a flock long enough, and you start to see who's who.⁠
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We spend a lot of time thinking about wool and where it comes from. And the more you know about sheep, the more remarkable the material becomes.⁠
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Fun Sheep Videos, every Saturday. See you in July. 🌿⁠
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#FunSheepVideos #SheepOfInstagram #SheepFacts #HappySaturday #SheepWoolInsulation #NaturalLiving #IsolenaWool #FlockLife
    A nearly 300-year-old home in County Carlow, upgra A nearly 300-year-old home in County Carlow, upgraded with Isolena sheep's wool insulation. 🐑⁠
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When Abe began improving his historic house, comfort and longevity were the priority. The existing fibreglass insulation had settled over time, letting heat escape and leaving rooms cold and damp. Replacing it meant choosing something that could handle Ireland's climate and work with the nature of an old building.⁠
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Isolena sheep's wool stood out for its ability to regulate moisture, stay effective in humid conditions, and avoid the fibres and off-gassing ⁠
associated with conventional materials. Safe to handle without PPE, easy to cut and fit, and flexible enough to work around tight attic spaces, it made a challenging project manageable as a DIY job.⁠
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The difference was immediate. Warmer rooms, lower heat loss, and a home that now stays comfortable with minimal heating. And because Isolena is built to last for decades, this is a once-and-done upgrade rather than something to revisit every 20 years.⁠
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A considered approach for an old house, done in stages, with materials that work with the building rather than against it.⁠
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Find out more at the Link in Bio!⁠
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#SheepWoolInsulation #HistoricHomes #IrishHomes #NaturalInsulation #BreathableBuild #HealthyHomes #OldHouseRenovation #MoistureControl #SustainableBuilding #DIYRenovation
    Old stone buildings are some of the hardest to ins Old stone buildings are some of the hardest to insulate correctly. 🐑⁠
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Churches are a particular challenge. High ceilings, exposed stone, condensation, cold air pockets and walls that have been breathing naturally for hundreds of years. Put the wrong insulation in and you can do more damage than good.⁠
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Isolena sheep's wool is the natural choice for exactly this reason. It works with stone, regulates moisture without trapping it and introduces nothing harmful into a space where air quality really matters.⁠
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This church is going to be a warmer, healthier, more comfortable space for everyone who uses it.⁠
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Find out more at Link in Bio!⁠
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#SheepWoolInsulation #IsolenaWool #ChurchRenovation #HeritageBuilding #NaturalInsulation #IrishHeritage #BreathableHome #SustainableRenovation #HistoricBuilding #EcoBuilding
    Happy Saturday and happy summer solstice! The long Happy Saturday and happy summer solstice! The longest day of the year. 🌞🐑⁠
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Sheep have already been through their big seasonal moment, shearing season, and are now out enjoying the warmer months with a fresh fleece growing back.⁠
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By late autumn, it will be thick enough to keep them comfortable through whatever winter throws at them. By next spring, it will be ready to shear again.⁠
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The same natural cycle, every single year, for thousands of years. Renewable by design. No factory required.⁠
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Cute and Informative Sheep Videos, every Saturday. Enjoy the long evening! ⁠
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#FunSheepVideos #SheepOfInstagram #SummerSolstice #HappySaturday #SheepWoolInsulation #NaturalMaterials #SustainableLiving #IsolenaWool
    🐑 This one surprises a lot of people. ⁠ ⁠ Sheep's 🐑 This one surprises a lot of people. ⁠
⁠
Sheep's wool is naturally one of the safest materials you can have in your home when it comes to fire.⁠
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Wool's ignition point sits at around 560°C, roughly twice that of wood. It does not drip, does not spread flame, and self-extinguishes when the heat source is removed. ⁠
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In the event of a fire, it does not release the toxic fumes that many synthetic insulation materials do.⁠
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No chemical flame retardants. No additives. Just the natural properties of the fibre itself.⁠
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Find out more at the Link in Bio!⁠
⁠
#SheepWoolInsulation #FireProtection #NaturalInsulation #IsolenaWool #HealthyHome #EcoHome #SustainableBuilding #SafeHome
    Old stone. New warmth. 🐑⁠ ⁠ This stone cottage was Old stone. New warmth. 🐑⁠
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This stone cottage was fully reinsulated with Isolena sheep's wool, the only natural choice for a building like this. ⁠
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Breathable, moisture regulating and completely in harmony with traditional materials. The walls have been standing for generations. The insulation should last just as long.⁠
⁠
Learn more at the Link in Bio!⁠
⁠
#SheepWoolInsulation #IsolenaWool #StoneCottage #HeritageHome #NaturalInsulation #IrishHomes #BreathableHome #SustainableRenovation
    Saturday sheep content, with a side of science. 🐑⁠ Saturday sheep content, with a side of science. 🐑⁠
⁠
Here's something genuinely remarkable: wool is one of the only insulation materials that actually stores carbon rather than producing it.⁠
⁠
As sheep graze, they absorb carbon through the grass they eat. That carbon becomes part of the wool fibre and stays locked in for the lifetime of the insulation. According to Isolena's Environmental Product Declaration, sheep's wool insulation has a negative global warming potential across its lifecycle.⁠
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So choosing natural insulation isn't just better for your home. It's measurably better for the planet.⁠
⁠
Informative Sheep Videos, every Saturday. See you next week. 🌿⁠
⁠
#FunSheepVideos #SheepFacts #WoolFacts #HappySaturday #SheepWoolInsulation #CarbonNegative #SustainableLiving #IsolenaWool

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