High Performance

Royal uPVC vinyl windows perform very highly in structural performance tests as well as air infiltration tests. They are therefore extremely durable and efficient even in severe weather environments. Even before the concern for energy conservation and higher energy efficiency in all aspects of our lives became the issue of the day, Royal was producing some of the most energy efficient windows and doors available anywhere. We embraced the use of high performance glass that incorporates double and triple glazed windows along with specialty inert gas fillings like argon and krypton in the sealed spaces. We use warm edge glass spacers (Edgetech ‘Superspacer’) to achieve maximum energy efficiency for the entire window. Royal manufactures windows and doors with energy performance efficiencies that are second to none.