Did you know insulation is not just for Christmas?

Most people assume that sheep wool insulation is installed only to help keep houses warm during the cold winter months and there are a few media reports of insu­la­tion caus­ing over­heat­ing.

I’ve written this blog to let the public know that this is not the case. If the writ­ers of those arti­cles had a clue how insu­la­tion worked they might see how absurd their claims are! Of course, in the winter, insulation holds heat, prevents warmth from escaping generally  makes your home feel comfortable, but it can also make a difference to your home in the summer.

Insulation works during the summer!

When someone mentions ‘wool’, what is the first thing that comes into your head? Probably something relating to winter or cold. Most people see wool as a way to stay warm. Come the warmer days of the year, wool is thrown far back in the wardrobe!


‘It might be hard to imagine; a fabric that can both keep you warm and cool you down. It does sound too good to be true. However, when you think about it, who are the world’s premiere users of wool? Sheep of course. These animals need their wool to protect them from the elements – no matter the season. So maybe it is not so hard to believe the magic of wool when you consider the range of temperatures a sheep in New Zealand or Australia has to endure.’ – Daniel Naslum, Using Wool for Cool.

So how does insulation actually work?

Insulation works by slowing the movement of heat between two spaces – it doesn’t ‘keep cold out’ which is what people often assume!

During the winter, homes tend to be heated so the inside of the house is nice and warm while the outside environment tends to be very cold. In an uninsulated house, the rate at which equilibrium is met – i.e. the temperatures either side of the wall becoming equal – is relatively quick. The result of this movement of heat is that the internal temperature of the house cools down.

In reality, the heat that travels out of the house is constantly replenished by the heating system, so the home never gets cold. You just have big energy bills!

In an insulated house, the insulation slows the rate at which heat moves across the wall / roof / floor. Therefore, the rate at which the house gets cooler during the winter months slows down – this means less heat is required, resulting in lower energy bills.

Once you understand how insulation, it becomes clear how it can also help during the summer.

Our 100% pure sheep wool insulation works by stopping your home from overheating. Personally, when I’m home on a hot summer’s day I like to feel cosy and snug, not hot and stuffy. I hate having to open all the windows around the house which then brings draughts, slamming doors and hot air… Annoying!

100% sheep wool insulation – a natural way to keep cool in summer!

During the summer, wool insulation will reduce the amount of heat coming in through the walls and help keep cool air inside your home. In the summer the sun tends to beat down on the house causing the walls to heat up. These heated walls often tend to radiate heat into the home, even well after sunset. When you insulate, the heat entering the home is dramatically reduced. For example, if it is 30 degrees outside your house, the inside will not ever get close to that temperature. Instead it should stay at a comfortable 20 degrees or so.


Sheep’s wool is today’s most practical insulator because it is very energy efficient compared to other insulation materials. Sheep wool insulation acts as a barrier between the cold damp weather outdoors and the warm dry environment inside your home. Because wool is breathable, it grips moisture to keep your house warm during winter, and releases moisture in summer to keep your house cool.