Double or Triple Glazed Rooflight?

Rooflights are a popular way of introducing natural light and ventilation to interior spaces. They are installed in various parts of the building, including the roof, the walls, and the floors. However, not all rooflights are created equal. Some provide better insulation than others, while others offer enhanced energy efficiency. In this article, we’ll examine the difference between a double glazed and a triple glazed rooflight to help potential buyers choose the best option.

Double Glazed Rooflight

A double glazed rooflight is made of two layers of glass, separated by a space filled with air or gas. The glass layers are sealed around the edges, creating an airtight chamber that provides insulation and reduces heat transfer. Double glazed rooflights are a popular choice for homeowners who want to balance the need for natural light with the desire for thermal efficiency. They are more efficient than single-glazed options, but not as efficient as triple glazed ones.

Triple Glazed Rooflight

A triple glazed rooflight has three layers of glass, separated by two spaces filled with air or gas. The additional layer of glass provides an extra barrier to heat loss and enhances the thermal efficiency of the rooflight. Triple glazed rooflights are a superior option for those who want the highest levels of insulation and energy efficiency. They are ideal for buildings in cold climates or those with high heating requirements.

Key Differences

The main differences between double glazed and triple glazed rooflights are their insulation and energy efficiency. Triple glazed rooflights outperform double glazed ones in both these areas. Triple glazed rooflights provide better insulation, which means that they keep the building warmer in winter and cooler in summer. They also reduce the amount of energy needed to heat or cool the building, which leads to lower energy bills and reduced carbon footprint. Additionally, triple glazed rooflights offer improved noise reduction, making them ideal for residential or commercial properties situated close to busy roads or in noisy environments.

When choosing between a double glazed and a triple glazed rooflight, it’s important to consider your specific needs and budget. While a double glazed rooflight will provide sufficient insulation for most properties, a triple glazed rooflight offers superior energy efficiency and insulation, particularly in colder climates. The additional cost of a triple glazed rooflight may be offset by the long-term savings on energy bills and reduced carbon footprint. Overall, both options are excellent choices for introducing natural light and ventilation to interior spaces while improving energy efficiency and reducing environmental impact.