By absorbing heat, natural fibre insulation reduces the amount of energy entering your property during peak periods of the day and releases it through the relative cool of the night. The heat capacity of wool is more than twice that of glass. Couple this with the higher density of Thermafleece and you have an insulation that can absorb nearly three times as much energy as standard insulation. During hot weather, in a typical loft, the amount of energy a sq.m of Thermafleece absorbs during the day is about the same as that used to run a portable air conditioning unit.

Thermafleece CosyWool and Thermafleece UltraWool contain 75% British wool, 15% recycled polyester loft agent and 10% polyester binder. The polyester binder contains at least 50% recycled material. Polyester is used to improve performance and durability.

Very easy and you can easily install it yourself. See our application notes for guidance. https://thermafleece.com/resources/how-to-install-thermafleece-insulation

Thermafleece will typically pay for itself within 4 years and will carry on working for many decades, so Thermafleece is excellent value for money.

Thermafleece is safe, you can use any off cuts for all sorts of things. Here are a few suggestions; pet beds, hanging basket liners, plant and tree protection.

For accurate cutting we recommend the 'Roll and Cut Method'. Tools Required: Sharp Scalloped Edge Knife or Insulation Saw 1. For an accurate length, take the insulation and roll it as tightly as possible along the width. Measure where you need to cut then taking the insulation saw / knife easily cut through. This provides a nice, neat edge and is an alternative to tearing by hand. 2. To cut the width of the slab: roll the insulation tightly along the length and secure. Measure the required width that you need then using the knife or insulation saw begin to cut through the whole roll. You can also cut Thermafleece by tightly compressing or clamping the insulation between two pieces of solid 15mm board. Overhang the fleece where you want to cut keeping the two board edges aligned. Saw cut the edge using a sharp, scalloped edged knife and keep the blade firm and square against both board edges throughout. Trim any fine remaining fibres with large scissors or shears. Take a look at the video on YouTube for more information

Sometimes Thermafleece can have a faint odour of sheep. This is not unpleasant but may be more pronounced if the insulation has been stored in a damp place. The odour dissipates relatively quickly after the pack has been opened.

Thermafleece is natural fibre insulation rich in British sheep’s wool. Thermafleece is highly breathable, sustainable and provides effective long-term thermal and acoustic insulation performance.

Sheep's wool is a poor conductor of heat and naturally traps air. It’s these properties that keep sheep warm on the fells and your house warm in the winter.

Do you want to know how thermafleece sheep’s wool insulation is made? Take a look at The Campaign for Wool video on Youtube which will show you the thermafleece production process from start to finish.

Thermafleece CosyWool Roll is delivered compress packed – this allows us to increase the number of packs we can get on a pallet and therefore minimise transport costs. Once your CosyWool Roll is unpacked it should regain to its full depth within 6 weeks. It will continue to regain whilst in situ.

Our wool insulation will last the lifetime of the building in which it is installed. Design lifetimes are typically 60 years for most new builds.

Insulation can save you money as it prevents heat loss. Which in turn reduces your energy bills. Insulation does many other things such as preventing your home from getting too hot in the summer and helps reduce the impact of sound. Breathable insulation such as Thermafleece can also help regulate humidity levels within the building fabric.

Yes, Thermafleece is made from British Wool. The wool used in our Thermafleece sheep’s wool insulation comes from British flocks, roughly split between England, Scotland and Wales. As a British Wool licensee, we purchase our wool through British Wool auctions by a licenced wool merchant.

Thermafleece is an ideal choice for helping minimise heat loss through suspended floors. Fit the insulation between the joists ensuring all joints are close-butted to avoid air gaps. Overlap additional layers to reduce air gaps. Support insulation with netting to the underside of the joist. A breather membrane can be fitted to the underside of the joist to minimise air movement through the floor. If the flooring comprises open floorboards, you should install an airtight membrane on the top side of the Thermafleece to avoid a build-up of dust and debris on top of the insulation. Maintain a ventilated space at least 150mm below the level of the insulation. Ensure that all air vents under the floor are unobstructed and take care not to block ventilation air path. Our Help and Advice section has Application Notes with diagrams available to download.

You can install thermafleece as insulation in a bathroom but always be aware: It is very important that there is a suitable vapour control layer installed on the inside of the walls before you install the insulation. Care should be taken to make sure that there is sufficient space above any insulation in the ceiling above to allow moisture passing through the insulation to vent. If you have further questions ask a member of our technical team on 017684 86285

If the flat roof is vented then you can treat it as a pitched roof. Place the insulation between the joists/rafters and leave a 50mm air gap above, making sure all ventilation pathways are unobstructed. If the roof is unvented then vapour control is critical. The space can be full-filled with insulation and a VSD membrane installed below, ensuring that all joints are taped and gaps sealed. If you have further questions ask a member of our technical team on 017684 86285

Thermafleece is manufactured in Yorkshire, the home of British wool.

Sheep welfare is very important to us. The sheep we use for Thermafleece run free on the mountains and fells and are brought down to lower lying land in the winter. They are not housed indoors although in lambing season the ewes may be brought under cover to protect them. All the wool clip comes from live sheep that are shorn in the spring of each year. Our wool is purchased through British Wool which is the government agency that manages the supply of all British wool bought and sold within the UK. British Wool conduct training and promote welfare. Both British Wool and our company take animal welfare very seriously. You can find information on animal welfare on the British Wool web site: https://www.britishwool.org.uk/animal-welfare-resources