While it might seem like an odd choice at first, an innovative and cost-effective way to insulate your windows this winter is by wrapping them in bubble wrap.

Not only is it lightweight and easy to install, but the unique air pockets in each sheet also help trap heat inside the room — resulting in more warmth during cold winter months.

It’s wise to invest in a variety with generous bubbles. For instance, a 1/2-inch diameter will provide greater air pockets, and more thermal protection against outdoor extremes.

Bubble wrap’s insulation power comes from the combination of air and plastic, which create tiny pockets where air molecules are static.

By limiting how much energy they can transfer as they bump into each other, these locked-in spaces prevent heated areas from affecting cooler ones.

This versatile and affordable material is not only easy to install and remove, but can prevent up to 50% of heat loss when using large panels instead of smaller sheets.