Durability of double-glazed windows - and 4 indications suggesting potential window malfunction
Double-glazed windows are a popular choice for homeowners due to their energy-efficiency and noise reduction properties. However, the lifespan of these windows can vary significantly depending on the type of frame material and the level of maintenance.
Frame Materials and Lifespan
The typical lifespan of double-glazed windows varies by frame material. Here's a breakdown of the most common types:
Timber Frames
With proper maintenance, timber-framed double-glazed windows can last about 30 to 60 years, sometimes even longer for high-quality hardwood versions. Softwood timber frames, on the other hand, last around 20 to 40 years with upkeep. However, timber frames' longevity heavily depends on regular maintenance like painting and protecting against rot.
uPVC Frames
uPVC frames are known for their low maintenance but generally have a shorter lifespan than timber, typically lasting between 20 to 35 years.
Aluminium Frames
While precise lifespan data specific to double-glazed aluminium frames is less explicit, aluminium frames are generally durable and can last 30+ years when properly maintained. Aluminium is robust and corrodes less, but may require maintenance of seals and hardware.
Double-Glazing Units (Glass Seals)
The sealed glass units within these windows generally last 10 to 20 years before seal failure can cause issues such as fogging between panes, regardless of frame type. Seal maintenance or repair is, therefore, important.
Maintenance and Care
Regular cleaning and annual inspections of windows can help reduce issues and prolong their lifespan. For example, cleaning aluminium frames every three months prevents the buildup of dirt and grime. In coastal or industrial areas, cleaning aluminium frames monthly is advisable.
If you notice visible damage to frames, such as warping, swelling, cracks, chips, or yellowing, it may indicate functionality issues. In such cases, repairs or even full replacement may be necessary.
Additional Notes
- If timber frames are not maintained properly, they may rot over time.
- Excessive outside noise can mean the insulating gas within the glazing has degraded, reducing the windows' acoustic insulation.
- A guide to new window costs and a double glazing price guide can help when it's time to replace double-glazing.
- Damaged or swollen frames, particularly in wooden windows, can be restored with sanding, sealing, and a fresh coat of micro-porous paint or stain.
- If exposed to extreme weather, the lifespan of double-glazed windows may be around 20 years.
- On average, double-glazed windows last around 25-30 years.
- Fogging or condensation trapped inside double glazing is an indicator that the window seal has failed.
- The type of window frame affects the lifespan of double glazing. Aluminium windows are highly resistant to corrosion and wear.
In conclusion, understanding the lifespan of different double-glazed window types and maintaining them properly can help homeowners make informed decisions about their homes' energy efficiency and maintenance plans.
- Homeowners may consider building a loft extension with solar panels for added energy efficiency and cost savings.
- For those looking to renovate their homes, energy-efficient double-glazed windows are an excellent choice due to their energy-saving properties and noise reduction capabilities.
- The lifespan of double-glazed windows can vary greatly, with timber frames lasting approximately 30 to 60 years, and up to 70 years for high-quality hardwood versions.
- Upkeep is essential for both softwood and hardwood timber frames, as improper maintenance can result in a reduced lifespan of 20 to 40 years.
- uPVC frames offer low maintenance but have a typical lifespan of 20 to 35 years.
- Aluminium frames, though they require occasional maintenance on seals and hardware, can last 30 years or more, making them a durable option.
- In addition to frame materials, the design and quality of windows can impact their lifespan, with well-designed windows providing better energy efficiency and longevity.
- Regular maintenance, such as cleaning and annual inspections, can help extend the lifespan of double-glazed windows, particularly aluminium frames that benefit from cleaning every three months.
- A lifestyle focused on health-and-wellness, fitness-and-exercise, and home-and-garden improvements might include the renovation of double-glazed windows for enhanced energy efficiency and an eco-friendly home environment.
