This is a photo of a flat roof installation carried out in Rochester, Kent Works have been carried out by Rochester Roofing

Introduction: Flat roofs offer distinct advantages but require regular maintenance to prevent issues like slipped tiles, which can compromise their integrity and functionality. Proper inspection and repair of slipped tiles are essential to ensure your flat roof remains durable and watertight. Here’s a comprehensive guide on how to effectively inspect and repair slipped tiles on flat roofs:

  1. Conducting a Thorough Inspection:
  • Safety First: Prioritise safety before inspecting your flat roof. Use appropriate personal protective equipment (PPE) and ensure stable ladder placement to access the roof safely.
  • Visual Assessment: Walk the entire surface of the flat roof to inspect for any signs of slipped or displaced tiles visually. Look for gaps, misalignments, or areas where underlying roofing materials are exposed.
  • Check Roof Edges and Corners: Pay particular attention to roof edges, corners, and areas around penetrations (vents, skylights) where tiles are more susceptible to slipping due to wind uplift or water pooling.
  1. Identifying Slipped Tiles:
  • Tap Test: Gently tap a mallet or your hand along the roof tiles’ surface. A low sound may indicate that a tile has slipped or become loose from its adhesive bond.
  • Visual Marking: Mark slipped tiles with chalk or a marker to identify their locations for repair. Documenting the extent of damage helps prioritise repairs and ensure thorough restoration.
  1. Steps for Repairing Slipped Tiles:
  • Gather Materials: Prepare tools and materials, including non-slip adhesives or sealants suitable for flat roof tiles, safety gloves, and a ladder.
  • Clean and Prepare Surfaces: Clear debris and dirt from the area surrounding slipped tiles. Ensure surfaces are dry and moisture-free to promote optimal adhesion of repair materials.
  • Apply Adhesive or Sealant: Use a non-slip adhesive or sealant designed for flat roof tile repairs. Apply a generous amount to the underside of the slipped tile and press firmly into place.
  • Secure and Align: Secure the tile in its original position, ensuring proper alignment with adjacent tiles. Use gentle pressure to ensure the adhesive bonds strongly to the roof substrate.
  • Allow for Cure Time: Follow manufacturer recommendations for curing time before subjecting repaired tiles to foot traffic or weather exposure. This allows the adhesive to fully set and bond securely.
  1. Prevention and Maintenance Tips:
  • Regular Inspections: Schedule routine inspections of your flat roof, ideally twice a year, to promptly detect and address slipped tiles.
  • Address Drainage Issues: Ensure proper roof drainage to prevent water pooling, which can weaken adhesive bonds and contribute to tile slipping.
  • Professional Assistance: Consider hiring a qualified roofing contractor for complex repairs or if you’re unsure about the extent of damage. Professionals can provide expert assessment and ensure repairs comply with industry standards.
  • Document Repairs: Keep detailed records of roof inspections, repairs, and maintenance activities. Documentation helps track roof condition over time and supports warranty claims if applicable.


Conclusion: Effectively inspecting and repairing slipped tiles on flat roofs is crucial for maintaining their structural integrity and prolonging their lifespan. By following these guidelines and prioritising proactive maintenance, homeowners can mitigate risks, prevent costly repairs, and ensure their flat roofs remain resilient against weather challenges.


Regular inspections, prompt repairs, and adherence to best practices in flat roof maintenance contribute to a secure and reliable roofing system that enhances property value and provides long-term peace of mind. Embrace these practices to safeguard your flat roof and enjoy continued protection against the elements for years.

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