BUILDING FABRIC & EXTERIORS
SPONSORED FEATURE
Putting coarse British wool to good use
many roles insulation plays, it’s worth considering the most effective option for your application. The use of natural fibre insulation is growing rapidly. With this in mind here are some reasons why you should consider products such as Thermafleece. Sheep’s wool is a great material. It’s a natural insulator, locally grown, sustainable, and breathable; it dampens sound and is fire safe. That’s why we use it to make Thermafleece. Thermafleece is manufactured in the UK and combines British wool with recycled polyester fibres to create effective, safe and sustainable insulation. Not only does Thermafleece act like other insulation in preventing heat loss by limiting air movement, it also prevents heat gain during peak summer
W
ith an ever greater choice of insulation on the market and a growing awareness of the
months. Its relatively high heat capacity allows the insulation to absorb and store heat and release it much later in the day as temperature cools. Breathability is an important and often
overlooked property of insulation. Sheep’s wool is breathable which means it can regulate the humidity of air around it. This helps protect structural timber from moisture, preventing the accumulation of harmful water and providing a stable fabric. Breathability is very important in older
properties. But using sheep’s wool insulation isn’t just limited to historic properties. You can use Thermafleece almost anywhere. It can be used alone or in combination with many types of insulation to improve thermal mass, breathability or acoustics. The acoustic properties of natural fibre insulation are often overlooked. Because of their irregular surface, shape and
density, sheep’s wool is very effective at disrupting sound. That’s one of the reasons why Thermafleece can provide acoustic performance comparable to the best mineral fibre products. How materials react to fire is an
increasingly important consideration. Sheep’s wool has a high ignition temperature and reacts to fire by charring. To improve these characteristics, the wool in Thermafleece is treated with a low level of borax in order to ensure our insulation is fire safe.
01768 486285
www.thermafleece.com
34
www.sbhonline.co.uk
march/april 2019
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