Secondary double glazing is a retrofit solution for improving the energy efficiency, noise reduction, and security of existing single-glazed windows. It involves installing a second layer of glass inside the existing window frame, with a gap of air in between. The gap of air acts as an insulator, helping to keep heat in during the winter and out during the summer. It also helps to reduce noise transmission from outside.
Secondary double glazing can be installed on a variety of window types, including casement windows, sash windows, and tilt-and-turn windows. It is also suitable for use in listed buildings and conservation areas, where planning permission for replacement windows may not be granted.
Benefits of Secondary Double Glazing
There are many benefits to installing secondary double glazing, including:
- Improved energy efficiency: Secondary double glazing can reduce heat loss through windows by up to 70%, which can lead to significant savings on energy bills.
- Reduced noise pollution: Secondary double glazing can reduce noise levels from outside by up to 80%, making your home a quieter and more peaceful place to live.
- Increased security: Secondary double glazing makes it more difficult for burglars to break into your home, as they would need to break through two layers of glass instead of one.
- Reduced condensation: Secondary double glazing helps to reduce condensation on windows, which can improve indoor air quality and prevent mold growth.
- Improved property value: Secondary double glazing can make your home more attractive to potential buyers and can increase its value.
Types of Secondary Double Glazing
There are two main types of secondary double glazing:
- Fixed: Fixed secondary double glazing is permanently installed inside the existing window frame. It is the most secure and energy-efficient type of secondary double glazing, but it is also the most expensive.
- Removable: Removable secondary double glazing can be installed and removed as needed. It is less expensive than fixed secondary double glazing, but it is not as secure or energy-efficient.
Choosing the Right Secondary Double Glazing System
When choosing a secondary double glazing system, there are a few factors to consider, including:
- Budget: Secondary double glazing can range in price from £200 to £500 per square metre, depending on the type of system you choose.
- Performance: Consider the energy efficiency and noise reduction performance of the system.
- Security: Choose a system that is difficult to break into.
- Appearance: Make sure the system complements the style of your home.
Installing Secondary Double Glazing
Secondary double glazing can be installed by a professional or as a DIY project. If you are installing the system yourself, be sure to follow the manufacturer’s instructions carefully.
Maintaining Secondary Double Glazing
Secondary double glazing requires very little maintenance. Simply clean the windows regularly to remove dirt and dust. You should also check the system regularly for signs of damage or wear and tear.
Case Studies
Here are a few case studies of secondary double glazing installations:
- Case Study 1: A homeowner in London had their secondary double glazing installed by a professional company. They reported a significant reduction in their energy bills and noise levels.
- Case Study 2: A homeowner in a listed building had their secondary double glazing installed by a specialist company. They were able to install the system without planning permission and without altering the appearance of their home.
- Case Study 3: A homeowner in a conservation area had their secondary double glazing installed by a DIY company. They were able to save money by installing the system themselves, and they were happy with the results.
Conclusion
Secondary double glazing is a cost-effective and effective way to improve the energy efficiency, noise reduction, and security of your home. It is also suitable for use in listed buildings and conservation areas. If you are considering installing secondary double glazing, be sure to choose a system that is right for your budget, performance needs, and the style of your home.