The Environmental Benefits of Repairing vs. Replacing Window Frames
13
August
Wood rot in window frames can pose a significant issue, potentially leading to severe structural damage and reduced insulation efficiency. When property owners discover rot in their window frames, the first instinct is often to consider replacement as the most straightforward and immediate solution.
The impulse to replace window frames stems from the perception that new installations offer a quick fix and potentially better performance. While perhaps more convenient, this approach overlooks the broader environmental implications and sustainability aspects associated with replacing rather than repairing.
Why Repairing Window Frames More Sustainable Than Replacing Them
Repairing window frames is a far more sustainable approach. A study commissioned by Repair Care and conducted by CE Delft underscores the environmental highlights of the environmental benefits of repair over replacement, indicating that the reduction in CO2 emissions can reach 90% or more throughout the repair’s life span.
The study, spearheaded by researcher Maarten Bruinsma, presents strong evidence supporting the environmental advantages of repair over replacement.
‘In terms of environmental impact, repairing damaged window frames scores two to five times better than replacing them with new window frames. Even when the window frame needs extensive repairs at several points, it’s still the best option. In a scenario when the glass in the existing frame doesn’t need to be replaced, repairing scores 9 to 27 times better than replacement.’
While the immediate convenience of window frame replacement might be tempting, the substantial and long-term environmental benefits of repair make it a far more responsible and sustainable choice. It’s a decision that will continue to benefit the environment for years to come.
Further Insights from Repair Care’s Environmental Study
Mark Gosens, Product Developer at Repair Care, explains why they chose to collaborate with CE Delft for this study and the importance of its findings.
‘Everyone realises by now that we need to be more conscious of how we use our resources. Many of us – ourselves included – were already convinced that repairing wood rot and damaged timber would be better for the environment than replacement. However, we also wanted to prove this objectively. As a market leader, we took up the gauntlet together with an independent research and consultancy agency. Wood rot mostly forms in the bottom part of the frame, which means that even the most adversely affected frames are still largely comprised of healthy timber. CE Delft has provided us with written proof that repairing these frames is better for the environment.’
The study employed the Life Cycle Assessment (LCA) method to evaluate the environmental impact of a product comprehensively. This approach examines every stage of the product’s life, from the extraction of raw materials to its final disposal – hence why it is often called the cradle-to-grave approach.
Repair Care’s products—pure epoxy repair materials—were the focal point of this assessment. The study found that other repair materials, such as polyester resins or impure epoxy-based materials, do not achieve the same level of sustainability. Conducted in compliance with EU directives, the study provides a solid framework for understanding the environmental implications of different materials and methods.
The findings highlight that uPVC window frames have the largest carbon footprint among common materials. Mark further demonstrates the potential CO2 savings with a practical example:
“Let’s take an average home in the Netherlands with six wooden window frames, three of which need to be repaired over 25 years. If these damaged frames were replaced with new wooden ones, including new glazing, repairing them instead could reduce CO2 emissions by up to 584 kg CO2 eq. (or 98%) compared to replacement. This amount is equivalent to the CO2 emissions from driving 2865 km with a petrol-powered car, watching television non-stop for 18 months, or the electricity consumption of an average household over six months.”
The environmental savings are even more significant when comparing repairs to the replacement of frames with aluminium or uPVC, as these materials have a higher carbon footprint than wooden frames. By choosing repair over replacement, property owners can make a substantial contribution to reducing their environmental footprint.
Conclusion
This study offers invaluable insights and practical solutions for maintenance companies and property managers seeking environmentally friendly alternatives for property restoration or renovation. The research conducted by CE Delft highlights the significant environmental benefits of repairing rather than replacing wooden window frames. This knowledge is crucial for those looking to minimise the environmental footprint of their projects.
For further information on adopting sustainable repair practices or exploring CPD opportunities, we invite you to contact us at supportuk@repair-care.com. To register your interest in our CPD sessions, please visit our CPD booking page here.
