What is an Argon filled cavity?

An Argon-filled cavity is a premium insulation feature found in high-quality skylights and windows. Argon is a naturally occurring, colourless, odourless, non-toxic noble gas that is heavier than air and has superior insulating properties. In double or triple-glazed skylights, the space between glass panes is filled with Argon gas instead of regular air.

Argon gas delivers exceptional thermal performance because it has significantly lower thermal conductivity compared to standard air, meaning it drastically reduces heat transfer through the skylight. This creates a more effective thermal barrier that keeps interior heat inside during colder months and prevents external heat from entering during warmer seasons.

Beyond temperature regulation, Argon-filled skylights provide additional benefits, including improved sound insulation, reduced potential for internal condensation, and enhanced energy efficiency. These performance advantages translate to more consistent indoor comfort, lower energy bills, and reduced environmental impact through decreased energy consumption for heating and cooling. The Argon gas is securely sealed within the glass unit and maintains its insulating properties for many years, contributing to the long-term performance of your skylight.