Glass Reinforced Plastic or GRP roofs are known for their strength, durability, and low maintenance needs. However, to get the most out of your GRP roof and ensure it lasts for decades, it’s essential to follow a few best practices of maintenance and upkeep. With that in mind, we collected key maintenance tips that will help keep your GRP roof in peak condition for years to come. 1. Schedule Regular Inspections You should inspect your GRP roof at least twice a year, which is best done in spring and autumn, to identify and promptly address any early signs of damage or wear. Look for surface cracks, blisters, or areas where the topcoat might be fading. Even minor damage can progress to more major damage over time, so catching issues early, in the bud, helps to avoid costly repairs later. 2. Keep the Roof Clean Dirt, leaves, moss, and other debris can hold moisture, which may slowly wear down the roof surface with the passage of time. Gently sweep or wash the roof with clean water to prevent this kind of buildup. You should also avoid using abrasive tools or harsh chemicals, as these can damage the GRP’s protective layer, which in turn reduces its lifespan. 3. Maintain Proper Drainage Ensure all gutters, outlets, and drainage points remain free from blockages. Standing water not only puts unnecessary weight on the roof but can also lead to surface deterioration over time. You should regularly check the roof after heavy rainfall to ensure water flows off efficiently and doesn’t gather in some nook or cranny. 4. Avoid Heavy Impact or Dragging Objects GRP is durable, but it’s not indestructible, and dragging heavy tools or equipment across the surface can cause scratches or gouges, damaging the protective layer. When working on the roof, use boards to distribute weight and protect the finish, and avoid dropping objects that could cause chips or cracks. 5. Reapply Topcoat When Needed Over many years, the topcoat that gives GRP roofs their waterproofing and UV protection can wear down. If you notice fading, chalking, or rough patches, it may be time to reapply the topcoat. This simple step can restore the roof’s appearance and protective qualities. 6. Watch for Edge Wear and Sealant Gaps The edges of the roof and any joints or seams are more exposed to weather and movement. Periodically check for lifting, cracking, or gaps in the sealant, and repair them promptly to maintain the watertight seal and prevent moisture ingress. A GRP roof is a long-term investment and like any investment, it benefits from care and attention. By keeping it clean, inspecting it regularly, and addressing minor issues promptly, you can ensure your roof remains watertight, attractive, and functional for decades.
