How insulation works
Insulation is very clever. Not only does it make your home warmer in winter, it also helps keep it cooler in summer. This is a little bit like a flask which keeps drinks hot or cold by providing an insulating layer between the drink and the outside air.
Air is a poor conductor of heat, so the tiny pockets of air trapped in insulation minimise the amount of heat which can pass between the inside and outside of your house.
This means that in winter, the heat stays inside a home and in the summer it stays outside!
Different types of insulation materials have different properties, so are suitable for different areas of a building.
Click here to find out more about different types of insulation.