Now that your property has been improved with external wall insulation, you might be wondering, "Does External Wall Insulation Require Maintenance?" External wall insulation is an excellent way to boost a building's energy efficiency and visual appeal. When properly installed and maintained, this type of insulation can last for decades. However, regular maintenance and cleaning are crucial to ensure that your external wall insulation stays in perfect condition. Without proper care, it can deteriorate due to weather, mechanical damage, and other external factors. This blog will cover the best practices for maintaining and cleaning external wall insulation to maximise its longevity.
Let's start with the basics: external wall insulation (EWI) is a system consisting of multiple layers of thermally efficient materials, both bonded and mechanically fixed to the existing walls of your property. This insulation, combined with a protective render, shields your home from the external elements. It creates an insulating envelope around your property, significantly reducing the transfer of heat through your walls. As a result, EWI helps keep your house cooler in the summer and warmer in the winter.
While EWI is typically low-maintenance, some upkeep is essential to ensure its performance and longevity. Regular maintenance tasks should be carried out regularly to keep your EWI system in top condition. These tasks help to address minor defects before they become serious issues, maintain the aesthetic and value of your property, and ensure that the external insulation and protective render last their full life cycle.
It's best practice to regularly inspect the walls of your property, keeping an eye out for any signs of damage, water intrusion, or deterioration. Be sure to check for cracks, gaps, broken render, mould, or any loose areas. If you suspect problems with your EWI system, it is best to seek professional advice.
It's essential to keep the walls of your property free from dirt, leaves, and other debris. Silicone-based renders are self-cleaning, with rainwater washing away dirt. However, acrylic renders tend to accumulate more dirt and require regular cleaning.
If you need to wash the walls of your property, you can use a jet wash, but ensure at least 12 months have passed since installation to avoid damaging the render, as it takes several months to fully cure.
Before starting the cleaning process, gather all necessary equipment and materials. Here are some simple cleaning methods:
Gentle Cleaning: Use a soft-bristled brush or sponge with mild detergent and water for regular cleaning. Avoid abrasive cleaners and high-pressure washing to prevent damage to the EWI system. When using a pressure washer, work from top to bottom with the washer set on a low setting.
Stain and Algae Removal: For stains and algae, mix warm water with mild detergent or a specialised cleaner. Scrub gently with a soft brush. For algae, use a biocide following the manufacturer’s instructions.
Using Ladders: Be cautious when using ladders near rendered walls, as they can cause permanent damage. Even ladders with protected ends can scratch or mark the surface.
Avoid Leaning Objects Against Walls: Avoid leaning bikes or ladders directly against the walls, as this can damage the render and insulation, making the system less effective.
Handling Bins: Take care when moving bins near the walls, as any impact can harm the render and insulation, affecting their performance.
Repairing Damage: If your EWI system gets damaged with dents, punctures, or holes, it's crucial to repair them promptly to prevent further issues.
External wall insulation is designed to last the lifetime of the building, typically up to 25 years or more, depending on the quality of the materials and installation. To ensure its longevity, regular inspections and timely repairs are crucial. Periodically check for any damage or wear and tear, and address any issues promptly to maintain the effectiveness of your EWI system.
Hiring professionals for EWI maintenance ensures your insulation system remains effective and long-lasting. Here are the key benefits:
Expertise and Experience: Professionals are trained and certified in handling EWI systems, ensuring proper care and maintenance. They know the best practices for various insulation materials and renders.
Proper Equipment and Techniques: Professionals use tools specifically designed for EWI maintenance. Using the right techniques, material and equipment prevents damage and extends the system's lifespan.
Comprehensive Inspection: Regular inspections catch small issues before they become major problems. Early detection of potential problems saves on future repair costs.
Regular professional maintenance guarantees that your EWI system continues to provide energy efficiency, comfort, and protection for your home.
Maintaining your external wall insulation is crucial to keeping your home energy-efficient, comfortable, and visually appealing. Proper installation and regular upkeep can extend the lifespan of EWI for decades. While simple maintenance tasks can be handled independently, more complex repairs are best left to professionals with the necessary expertise.
If you notice any cracks, uneven or flaking patches, or signs of water damage, it's essential to seek a professional assessment promptly. Addressing minor issues quickly can prevent more significant problems and save you money in the long run.
For assistance with your EWI, contact us for a free quote. At PD Rendering, we bring over 15 years of expertise in external wall insulation and rendering, and we have completed numerous repair and maintenance projects. Let us help you keep your home in top condition.
