Why is insulation so important?

Why is insulation so important?

Most people want their homes and businesses to stay warm in winter and cool in summer and generally, the best way to achieve this is with insulation. A building without sufficient insulation could struggle to retain warmth, be expensive to heat and waste energy, such as gas. This is why you must meet the minimum energy efficiency requirements as laid out by Building Regulations. But why is it so crucial that buildings have insulation? Below, you can find out exactly how insulation works and why our homes and commercial premises need it.

What is insulation made of?

Obviously, insulation must  be good at insulating in order to work successfully, and this means that whatever it’s made from should be able to trap air within its fibres.Certain materials are better at doing this than others. For example, wool is a famously good insulator – it keeps sheep warm and dry and explains why it’s used to create jumpers that can keep us warm too. Fabrics such as cotton are also good insulators, as is foam which can be sprayed or injected directly into a surface. Other manmade materials can be used, such as fibreglass insulation. This material is made from a mixture of wool and glass fibres to create a strong composite that is extremely effective in loft spaces.

Why do houses need insulation?

Now that you understand how insulation works, why is it so important to have good quality insulation in your home?

Lots of people believe that most of the heat in a building escapes through the roof. Because heat rises, it seems logical that this would be the case. However, conduction also means that this heat travels to colder places, resulting in warmth being lost through walls and floors too. It’s thought that around 35 per cent of heat is lost through walls, 40 per cent through doors, windows and floors and only 25 per cent through the roof.

Insulation is one of the best ways you can make your home more energy efficient and therefore save money on your gas bills. Say, for example, you’ve set your boiler to heat your home to 20℃. Not only could it take more effort for your boiler to bring a room to this temperature, but it may also have to work harder to keep it at this temperature. This means your boiler could be using more gas than the same heating system in a well-insulated property. The Energy Saving Trust states that an average-sized three bedroom semi-detached property could save £150 in one year by installing loft insulation and an additional £160 by installing cavity wall insulation.

Why does your commercial property need insulation?

While insulation in homes is more about keeping heat in, it’s the opposite for commercial spaces. Most offices, particularly those with lots of electrical equipment like computers, can get very warm in summer. While air conditioning would be a good answer to this problem, this kind of system only uses more electricity, resulting in higher energy bills. Instead, insulation can keep an office space cooler. It can even be used in tandem with air conditioning so that the space is kept cool but heat from outside is unable to penetrate further into the building.

Insulation may also help to reduce your business’ carbon footprint and can be advantageous as a sound absorber too, reducing sound pollution from other parts of the building or outside.

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