18 November 2023

What is the science behind double glazing?

By ruiiid5

Ever wondered how double-glazing works? You won’t be overwhelmed by science. It’s easy to understand. Double glazing is so efficient because air conducts heat less efficiently than glass. The air trapped between the two glass panes does not conduct heat very well. This means that less heat will escape from a double pane than through a single one in cold winter months.

Image credit

The molecules move when an object heats up. Warm objects have molecules that move faster than cold ones. The molecules bumping against each other and rushing around causes heat to generate. Heat spreads faster when molecules are close together in a substance, like glass. It’s easier for them to collide. When you consider how far apart air molecules are, it is easy to understand why heat spreads more slowly. When you need Worcester Double Glazing, consider Firmfix, suppliers of Worcester Double Glazing.

Wearing a jumper is similar to double-glazing. Jumpers trap air in their fibres. The heat is transferred from the body to the jumper when the warm, fast molecules collide with the colder air molecules. Double-glazing works on the same principle. The trapped air in between the panes serves as an insulation between your warm interior air and the cold air outside.

Image credit

Inert gases like argon can be used to fill double-glazed windows. In order to avoid chemical reactions, it is necessary to use a gas that doesn’t react easily with other substances. Argon is only slightly better at conducting heat than air, with a 33% lower efficiency. The principle of insulation is the same whether you have windows with air or argon.