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571 School Safety: Exterior Facilities
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Clay Tiled Roofs

There are many issues and common problems that can exist with clay tiled roofs. Here is a look:

  • Tiles cracked or broken by stones or balls thrown up on the roof
  • Tiles that have become loose or fallen out because they were not laid properly or the timber has moved
  • Tiles that have deteriorated because they were either under-burned or poorly made
This clay tiled roof looks to be in good condition.

If any of these issues occur, the tiles should be replaced as soon as possible. You will need to have a maintenance worker get on the roof and lift the surrounding tiles and replace the loose or damaged ones.

Another common problem with clay tiled roofs is the ridge or hip tiles that are set in mortar become loose, causing leaks. To correct this problem, you will need to have a tiler re-lay the loose tiles and set them in place using a 1:1 cement/sand mortar.

Knowledge Check Choose the best answer for the question.

4-2. What action should be taken if clay roof tiles become cracked or broken?